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Com-Tech 400 Amplifier Service Manual

POWER AMPLIFIER

SERVICE MANUAL
COM-TECH 400
®

Model CT400B

©1995 by CROWN INTERNATIONAL, INC.
Mailing Address: P.O. Box 1000 Elkhart, IN U.S.A. 46515-1000 Shipping Address: 57620 C.R. 105 Elkhart, IN U.S.A. 46517

Com-Tech®, ODEP® and Crown® are registered trademarks of Crown International, Inc. K-SVCCT400 12-95

1

Com-Tech 400 Amplifier Service Manual The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance beyond the scope of this manual, please contact the Crown Technical Support Group. Mail: P.O. Box 1000 Elkhart IN 46515-1000 Shipping: 57620 C.R. 105 Elkhart IN 46517 Phone: (800) 342-6939/(219) 294-8200 FAX: (219) 294-8301

CAUTION
TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. DISCONNECT POWER CORD BEFORE REMOVING REAR INPUT MODULE TO ACCESS GAIN SWITCH.

AVIS
À PRÉVENIR LE CHOC ÉLECTRIQUE N'ENLEVEZ PAS LES COUVERTURES. RIEN DES PARTIES UTILES À L'INTÉRIEUR. DÉBRANCHER LA BORNE AVANT D'OUVRIR LA MODULE EN ARRIÈRE.

WARNING
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE!

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Com-Tech 400 Amplifier Service Manual

Table of Contents

Introduction ............................................................ 4 Parts Information .................................................... 5 Specifications ......................................................... 6 Theory .................................................................... 7 Electrical Checkout Procedures ........................... 12 Parts List (Non Module) ....................................... 16 Module and Schematic Information ..................... 19 Q42762-7 Control Module Parts List .................... 20 Q43214-8 Control Module Parts List .................... 21 Q43242-9 Control Module Parts List .................... 22 Q42706-4 Display Module Parts List .................... 23 Q42716-3 Output Module Parts List .................... 24 Q42888-0 Output Module Parts List .................... 25 Q42969-8 Output Module Parts List .................... 26 Q43188-4 Output Module Parts List .................... 27 Q43012-6 Main Module Parts List ........................ 28 Q43043-1 Main Module Parts List ........................ 31 Q43129-8 Main Module Parts List ........................ 34 Q43238-7 Main Module Parts List ........................ 37

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Com-Tech 400 Amplifier Service Manual

Introduction
This manual contains service information on Crown power amplifiers. It is designed to be used in conjunction with the applicable Owner's Manual. However, some important information is duplicated in this Service Manual in case the Owner's Manual is not readily available. NOTE: THE INFORMATION IN THIS MANUAL IS INTENDED FOR USE BY AN EXPERIENCED TECHNICIAN ONLY! circuit board may be built up with different parts to create different modules. Note that Crown does not sell blank (unpopulated) circuit boards. Each of the compact audio power amplifiers are designed for professional or commercial use. Providing high power amplification from 20Hz to 20KHz with minimum distortion, they feature balanced inputs with bridged and parallel monophonic capability. Specific features vary depending on model family.

Scope
This Service Manual in intended to apply to all versions of the CT-400B amplifier including the Amcron version. The Parts Listings include parts specific for the US version and the European version (CT-400BE13). For parts specific only to other versions contact the Crown Technical Support Group for help in finding part numbers. This Service Manual includes several sections. These sections include Parts Information, Specifications, Voltage Conversion, Circuit Theory, Electrical Test Procedures, Non-Module Parts Lists, and Module Parts Lists. Schematics are attached. Note that component parts with circuit board comprise a complete module. Module part numbers are always associated with a specific circuit board, although an unpopulated

Warranty
Each Owner's Manual contains basic policies as related to the customer. In addition it should be stated that this service documentation is meant to be used only by properly trained service personnel. Because most Crown products carry a 3 Year Full Warranty (including round trip shipping within the United States), all warranty service should be referred to the Crown Factory or Authorized Warranty Service Center. See the applicable Owner's Manual for warranty details. To find the location of the nearest Authorized Service Center or obtain instructions for receiving Crown Factory Service please contact the Crown Technical Support Group (within North America) or your Crown/ Amcron Importer (outside North America).

Crown
Technical Support Group Factory Service Parts Department Mailing Address: PO Box 1000 Elkhart, IN USA 46515-1000 Shipping Address: 57620 C.R. 105 Elkhart, IN USA 46517 Phone: (219) 294-8200 Toll Free: (800) 342-6939 FAX: (219) 294-8301

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Com-Tech 400 Amplifier Service Manual

Parts Information
General Information
Later sections include both mechanical and electrical parts lists for this product. The parts listed are current as of the date printed. Crown reserves the right to modify and improve its products for the benefit of its customers. shipment on a C.O.D. or pre-payment (check or credit card) basis.

Terms
Normal terms are pre-paid. Net-30 Days applies to only those firms having pre-established accounts with Crown. If pre-paying, the order must be packed and weighed before a total bill can be established, after which an amount due will be issued and shipment made upon receipt of pre-payment. New parts returned for credit are subject to a 10% re-stocking fee, and authorization from the Crown Parts Department must be obtained before returning parts for credit. Crown is not a general parts warehouse. Parts sold by the Crown Parts Department are solely for servicing Crown/Amcron products. Part prices and availability are subject to change without notice.

Part Numbering System
As of the printing of this manual, Crown is using two numbering systems. The elder system always uses eight characters. The first character is a letter. Common letters used are C, D, H, M, P, and Q. The second through sixth characters are numbers. The numbers build sequentially (for each prefix letter) as new parts are added to our parts inventory system. (In some cases there will be a space then a four character number after the prefix letter; the space is considered a character.) The seventh character is usually a hyphen, though it may be a letter to indicate a revision or special note. The last character is called a check-digit, and is useful to Crown for internal tracking. Crown is in the process of converting to a new part number system. Length may vary from eight to twelve characters. There is still a letter prefix, then five numbers. These five numbers identify a type of part. The seventh character is a hyphen. Remaining characters identify the details of the type of part identified by the first part of the number.

Crown
Parts Department Mailing Address: PO Box 1000 Elkhart, IN USA 46515-1000 Shipping Address: 57620 C.R. 105 Elkhart, IN USA 46517 Phone: (219) 294-8210 or: (219) 294-8211 Toll Free: (800) 342-6939 FAX: (219) 294-8301

Standard and Special Parts
Many smaller electrical and electronic parts used by Crown are stocked by and available from electronic supply houses. However, some electronic parts that appear to be standard are actually special. A part ordered from Crown will assure an acceptable replacement. Structural items such as modules and panels are available from Crown only.

Ordering Parts
When ordering parts, be sure to give the product model, and include a description and part number (CPN/DPN) from the parts listing. Price quotes are available on request.

Shipment
Shipment will be normally made by UPS or best other method unless you specify otherwise. Shipments are made to and from Elkhart, Indiana USA, only. Established accounts with Crown will receive shipment freight prepaid and will be billed. All others will receive 5

Com-Tech 400 Amplifier Service Manual

Specifications
Unless noted otherwise, all specifications are based on driving an 8 ohm load per channel, both channels driven, the sensitivity switch in the 26dB position, the AC supply is 120VAC at 60Hz. Crown specifications are guaranteed through the warranty period (normally 3 years). Because our testing methods are more stringent than our published specifications, every Crown amplifier will exceed its published specifications. Input Impedance: Nominally 20K ohms balanced; 10K ohms unbalanced. Output Impedance: <10 milliohms in series with <2 microhenries. Protection Systems: Output Device Emulation Protection (ODEP) limits drive in the event of dangerous dynamic thermal conditions without interrupting power. Current limiting for shorted load protection. DC/LF and common mode output current Fault circuitry to mute audio. Delay of 4 seconds from turn on mutes amplifier to prevent dangerous turn-on transients.

Power

Power 8 Ohm Stereo--230W/Ch 4 Ohm Stereo--255W/Ch 70-V Line Stereo--225W/Ch 8 Ohm Bridge Mono--470W 4 Ohm Parallel Mono--445W 2 Ohm Parallel Mono--450W Bridge Mono, 140-V Line--450W Parallel Mono, 70-V Line--455W Load Impedances: Rated for 16, 8, 4, 2, Ohm, and 70V use. Safe with all types of loads, even totally reactive loads. AC Mains: 120VAC at 60 Hz with standard three-wire grounded connector for North American units; 100VAC, 120VAC, 220VAC, and 240VAC at 50 or 60 Hz units are available when ordered country specific. ComTech amplifiers are not voltage convertable.

Mechanical

Input Connectors: Balanced three-terminal barrier block for each channel on standard P.I.P.-BB module (included) Output Connectors: Four-terminal barrier block. Front Panel Controls: A front panel rocker switch used to power the amplifier on and off. Back Panel Controls: A three-position switch which selects Stereo, Bridge-Mono, or Parallel-Mono mode. A rotary potentiometer for each channel used to control output level. A two position recessed switch for each channel selects between 8/4 ohm and 70-V modes. A push button circuit breaker used to protect the power supply. Internal Controls: A three-position switch selects 0.775V, 1.4V, or 26 dB voltage gain input sensitivity. Indicators: Amber Enable indicator shows on/off status of low-voltage power supply. A green indicator for each channel shows the reserve energy status. If no reserve energy is available the indicator will dim in proportion to ODEP limiting. A yellow indicator for each channel flashes in the event of distortion. And green SPI (signal presence indicator) indicators show the presence of output signal. Construction: Black splatter-coat steel chassis with specially designed flow-through ventilation system. Mounting: Standard EIA 310 front-panel rack mount with supports for supplemental rear corner mounting. Dimensions: 19 inches wide, 3.5 inches high, 16 inches deep behind front mounting surface. Weight: 31 lbs, 12.5 oz. (14.4 kg)

Performance

Frequency Response: ±0.1dB from 20 Hz to 20 kHz at 1 Watt. Phase Response: ±10° from 10 Hz to 20 kHz at 1 Watt. Signal to Noise Ratio: A-weighted, better than 105 dB below full rated output. Better than 100 dB below full rated output from 20 Hz to 20 kHz. Total Harmonic Distortion (THD): <0.05% from 20 Hz to 1 kHz, increasing linearly to 0.1% at 20 kHz at 500W. I.M. Distortion: <0.05% from less than 164 milliwatts to 520 W at 26 dB gain. Slew Rate: >13V per microsecond. (Slew rates are limited to useful levels for ultrasonic/RF protection.) Damping Factor: >1000 from 10 Hz to 400 Hz. DC Offset: <10 millivolts.

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Com-Tech 400 Amplifier Service Manual

Theory
Overview
It should be noted that over time Crown makes improvements and changes to their products for various reasons. This manual is up to date as of the time of writing. For additional information regarding these amplifiers, refer to the applicable Technical Notes provided by Crown for this product. This section of the manual explains the general operation of a typical Crown power amplifier. Topics covered include Front End, Grounded Bridge, and ODEP. Due to variations in design from vintage to vintage (and similarities with other Crown products) the theory of operation remains simplified. For additional details refer to the specification section, or to the applicable Owner's Manual.

Front End Operation
The front end is comprised of three stages: Balanced Gain Stage (BGS), Variable Gain Stage (VGS), and the Error Amp. Figure 1 shows a simplified diagram of a typical front end with voltage amplification stages. Balanced Gain Stage (BGS) Input to the amplifier is balanced. The shield may be isolated from chassis ground by an RC network to interrupt ground loops via the Ground Lift Switch. The non-inverting (hot) side of the balanced input is fed to the non-inverting input of the first op-amp stage. The inverting (negative) side of the balanced input is fed to the inverting input of the first op-amp stage. A potentiometer is provided for common mode rejection adjustment. Electrically, the BGS is at unity gain. (From an audio perspective, however, this stage actually provides +6dB gain if a fully balanced signal is placed on its input.) The BGS is a non-inverting stage. It's output is delivered to the Variable Gain Stage. Variable Gain Stage (VGS) From the output of the BGS, the signal goes to the VGS where gain is determined by the position of the Sensitivity Switch, and level is determined by the level control. VGS is an inverting stage with the input being fed to its op-amp stage. Because gain after this stage is fixed at 26dB (factor of 20), greater amplifier sensitivity is achieved by controlling the ratio of feedback to input resistance. The Sensitivity Switch sets the input impedance to this stage and varies the gain such that the overall amplifier gain is 26 dB, or is adjusted appropriately for 0.775V or 1.4V input to attain rated output. Error Amp The inverted output from the VGS is fed to the noninverting input of the Error Amp op-amp stage through an AC coupling capacitor and input resistor. Amplifier output is fed back via the negative feedback (NFb) loop resistor. The ratio of feedback resistor to input resistor fixes gain from the Error Amp input to the output of the amplifier at 26 dB. Diodes prevent overdriving the Error Amp. Because the Error Amp amplifies the difference between input and output signals, any difference in the two waveforms will produce a near open loop gain condition which in turn results in high peak output voltage. The output of the 7

Features
Com-Tech amplifiers utilize numerous Crown innovations including grounded bridge and ODEP technologies. Cooling techniques make use of the what is essentially air conditioner technology. Air flows bottom to top, and front to side. Air flows a short distance across a wide heatsink. This type of air flow provides significantly better cooling than the "wind tunnel" technology used by many other manufacturers. Output transistors are of the metal can type rather than plastic case. This allows for a significantly higher thermal margin for the given voltage and current ratings. All devices used are tested and graded to ensure maximum reliability. Another electronic technique used is negative feedback. Almost all power amplifiers utilize negative feedback to control gain and provide stability, but Crown uses multiple nested feedback loops for maximum stability and greatly improved damping. Most Crown amplifiers have damping in excess of 1000 in the bass frequency range. This feedback, along with our compensation and ultra-low distortion output topology, make Crown amplifiers superior. Features specific to the Com-Tech Series' include slew rate limiting, and audio muting for delay or protective action. This amplifier can operate in either a Bridged or Parallel Mono mode as well as dual (stereo). A sensitivity switch allows selection of input voltage required for rated output. Level controls are mounted on the rear panel and are of the rotary type. Front panel indicators let the user know the status of the low voltage power supply (enable), signal presence, distortion, and an ODEP indicator for each channel which shows the reserve energy status. In general, the packaging of this model is designed for maximum watt/price/weight/size value with user friendly features.

Com-Tech 400 Amplifier Service Manual

Theory
Error Amp, called the Error Signal (ES) drives the Voltage Translators. Fault protective action. Last Voltage Amplifiers (LVAs) The Voltage Translator stage channels the signal to the Last Voltage Amplifiers (LVA's) in a balanced configuration. The +LVA and -LVA, with their push-pull effect through the Bias Servo, drive the fully complementary output stage. The LVAs are configured as common emitter amplifiers. This configuration provides sufficient voltage gain and inverts the audio. The polarity inversion is necessary to avoid an overall polarity inversion from input jack to output jack, and it allows the NFb loop to control Error Amp gain by feeding back to its non-inverting input (with its polarity opposite to the output of the VGS). With the added voltage swing provided by the LVAs, the signal then gains current amplification through the Darlington emitter-follower output stage.

Voltage Amplification
The Voltage Translator stage separates the output of the Error Amp into balanced positive and negative drive voltages for the Last Voltage Amplifiers (LVAs), translating the signal from ground referenced ±15V to ±Vcc reference. LVAs provide the main voltage amplification and drive the High Side output stages. Gain from Voltage Translator input to amplifier output is a factor of 25.2. Voltage Translators A voltage divider network splits the Error Signal (ES) into positive and negative drive signals for the balanced voltage translator stage. These offset reference voltages drive the input to the Voltage Translator transistors. A nested NFb loop from the output of the amplifier mixes with the inverted signal riding on the offset references. This negative feedback fixes gain at the offset reference points (and the output of the Error Amp) at a factor of -25.2 with respect to the amplifier output. The Voltage Translators are arranged in a common base configuration for non-inverting voltage gain with equal gain. They shift the audio from the ±15V reference to VCC reference. Their outputs drive their respective LVA. Also tied into the Voltage Translator inputs are ODEP limiting transistors and control/protection transistors. The ODEP transistors steal drive as dictated by the ODEP circuitry (discussed later). The control/protection transistors act as switches to totally shunt audio to ground during the turn-on delay, or during a DC/LF or

Grounded Bridge Topology
Figure 2 is a simplified example of the grounded bridge output topology. It consists of four quadrants of three deep Darlington (composite) emitter-follower stages per channel: one NPN and one PNP on the High Side of the bridge (driving the load), and one NPN and one PNP on the Low Side of the bridge (controlling the ground reference for the rails). The output stages are biased to operate class AB+B for ultra low distortion in the signal zero-crossing region and high efficiency. High Side (HS) The High Side (HS) of the bridge operates much like a conventional bipolar push-pull output configuration.

+15V

BGS

VGS

Voltage Divider

Error Amp

Voltage Translators
Q100 Q121 Q101 Q102 Q103 Q122

+VCC

Q105

Audio Inputs

+ -

+ -

+ -

NPN Outputs (+HS) PNP Outputs (-HS)
Q110

-15V

ODEP

-+

Mute NFb Loop

-VCC

LVA's

Figure 1. Typical Amplifier Front End and Voltage Amplification Stages. 8

Com-Tech 400 Amplifier Service Manual

Theory
As the input drive voltage becomes more positive, the HS NPN conducts and delivers positive voltage to the load. Eventually the NPN devices reach full conduction and +Vcc is across the load. At this time the HS PNP is biased off. When the drive signal is negative going, the HS PNP conducts to deliver -Vcc to the load and the HS NPN stage is off. The output of the +LVA drives the base of predriver device. Together, the predriver and driver form the first two parts of the three-deep Darlington and are biased class AB. They provide output drive through the bias resistor, bypassing the output devices, at levels below about 100mW. An RLC network between the predriver and driver provide phase shift compensation and limit driver base current to safe levels. Output devices are biased class B, just below cutoff. At about 100mW output they switch on to conduct high current to the load. Together with predriver and driver, the output device provide an overall class AB+B output. The negative half of the HS is almost identical to the positive half, except that the devices are PNP. One difference is that the PNP bias resistor is slightly greater in value so that PNP output devices run closer to the cutoff level under static (no signal) conditions. This is because PNP devices require greater drive current. HS bias is regulated by Q18, the Bias Servo. Q18 is a Vbe multiplier which maintains approximately 3.3V Vce under static conditions. The positive and negative halves of the HS output are in parallel with this 3.3V. With a full base-emitter on voltage drop across predrivers and drivers, the balance of voltage results in approximately .35V drop across the bias resistors in the positive half, and about .5V across the bias resistor in the negative half. Q18 conduction (and thus bias) is adjustable. A diode string prevents excessive charge build up within the high conduction output devices when off. Flyback diodes shunt back-EMF pulses from reactive loads to the power supply to protect output devices from dangerous reverse voltage levels. An output terminating circuit blocks RF on output lines from entering the amplifier through its output connectors. Low Side (LS) The Low Side (LS) operates quite differently. The power supply bridge rectifier is not ground referenced, nor is the secondary of the main transformer. In other words, the high voltage power supply floats with respect to ground, but ±Vcc remain constant with respect to each other. This allows the power supply to deliver +Vcc and -Vcc from the same bridge rectifier and filter as a total difference in potential, regardless of their voltages with respect to ground. The LS uses

+
+Vcc (Positive Rail)

Input signal

Load (speaker)

Inverting Op-amp LOW SIDE

HIGH SIDE

-Vcc (Negative Rail)

-

Figure 2. Crown Patented Grounded Bridge Topology 9

Com-Tech 400 Amplifier Service Manual

Theory
inverted feedback from the HS output to control the ground reference for the rails (±Vcc). Both LS quadrants are arranged in a three-deep Darlington and are biased AB+B in the same manner as the HS. When the amplifier output swings positive, the audio is fed to an op-amp stage where it is inverted. This inverted signal is delivered directly to the bases of the positive (NPN) and negative (PNP) LS predrivers. The negative drive forces the LS PNP devices on (NPN off). As the PNP devices conduct, Vce of the PNP Darlington drops. With LS device emitters tied to ground, -Vcc is pulled toward ground reference. Since the power supply is not ground referenced (and the total voltage from +Vcc to -Vcc is constant) +Vcc is forced higher above ground potential. This continues until, at the positive amplifier output peak, -Vcc = 0V and +Vcc equals the total power supply potential with a positive polarity. If, for example, the power supply produced a total of 70V from rail to rail (±35VDC measured from ground with no signal), the amplifier output would reach a positive peak of +70V. Conversely, during a negative swing of the HS output where HS PNP devices conduct, the op-amp would output a positive voltage forcing LS NPN devices to conduct. This would result in +Vcc swinging toward ground potential and -Vcc further from ground potential. At the negative amplifier output peak, +Vcc = 0V and -Vcc equals the total power supply potential with a negative polarity. Using the same example as above, a 70V supply would allow a negative output peak of 70V. In summary, a power supply which produces a total of 70VDC rail to rail (or ±35VDC statically) is capable of producing 140V peak-to-peak at the amplifier output when the grounded bridge topology is used. The voltage used in this example are relatively close to the voltages of the PB-1/460CSL. The total effect is to deliver a peak to peak voltage to the speaker load which is twice the voltage produced by the power supply. Benefits include full utilization of the power supply (it conducts current during both halves of the output signal; conventional designs require two power supplies per channel, one positive and one negative), and never exposing any output device to more than half of the peak to peak output voltage (which does occur in conventional designs). Low side bias is established by a diode string which also shunts built up charges on the output devices. Bias is adjustable via potentiometer. Flyback diodes 10 perform the same function as the HS flybacks. The output of the LS is tied directly to chassis ground via ground strap.

Output Device Emulation Protection (ODEP)
To further protect the output stages, a specially developed ODEP circuit is used. It produces a complex analog output signal. This signal is proportional to the always changing safe-operating-area margin of the output transistors. The ODEP signal controls the Voltage Translator stage by removing drive that may exceed the safe-operating-area of the output stage. ODEP senses output current by measuring the voltage dropped across LS emitter resistors. LS NPN current (negative amplifier output) and +Vcc are sensed, then multiplied to obtain a signal proportional to output power. Positive and negative ODEP voltages are adjustable via two potentiometers. Across ±ODEP are a PTC and a thermal sense (current source). The PTC is essentially a cutoff switch that causes hard ODEP limiting if heatsink temperature exceeds a safe maximum, regardless of signal level. The thermal sense causes the differential between +ODEP and ­ ODEP to decrease as heatsink temperature increases. An increase in positive output signal output into a load will result in ­ODEP voltage dropping; an increase in negative output voltage and current will cause +ODEP voltage to drop. A complex RC network between the ±ODEP circuitry is used to simulate the thermal barriers between the interior of the output device die (immeasurable by normal means) and the time delay from heat generation at the die until heat dissipates to the thermal sensor. The combined effects of thermal history and instantaneous dynamic power level result in an accurate simulation of the actual thermal condition of the output transistors.

Com-Tech 400 Amplifier Service Manual

Theory

+VOLTAGE TRANSLATOR BGS VGS ERROR AMP OUTPUT DEVICE EMULATION PROTECTION

+LVA -1

POSITIVE HIGH SIDE OUTPUT NPN STAGE

BALANCED INPUTS

-1

HIGH SIDE BIAS SERVO

-VOLTAGE TRANSLATOR

-LVA -1

NEGATIVE HIGH SIDE OUTPUT PNP STAGE

MAIN NEGATIVE FEEDBACK (NFb) LOOP

POSITIVE LOW SIDE OUTPUT NPN STAGE -1 LOW SIDE BIAS DIODE STRING NEGATIVE LOW SIDE OUTPUT PNP STAGE

INVERTING BRIDGE BALANCE

Figure 3. Typical Crown Amplifier Basic Block Diagram (One Channel Shown)

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Com-Tech 400 Amplifier Service Manual

Electrical Checkout Procedures
General Information
The following test procedures are to be used to verify operation of this amplifier. DO NOT connect a load or inject a signal unless directed to do so by the procedure. These tests, though meant for verification and alignment of the amplifier, may also be very helpful in troubleshooting. For best results, tests should be performed in order. All tests assume that AC power is from a regulated 120 VAC source. Test equipment includes an oscilloscope, a DMM, a signal generator, loads, and I.M.D. and T.H.D. noise test equipment. The following list of ODEP bias voltages VS. temperature is based on the use of Main Modules built on any circuit board up to and including the D 7993-5 board. °F °C V­ODEP V+ODEP 66 18.9 ­10.31 11.41 68 20.0 ­10.26 11.36 70 21.1 ­10.20 11.30 72 22.2 ­10.14 11.24 74 23.3 ­10.09 11.19 76 24.4 ­10.03 11.13 77 25.0 ­10.00 11.10 78 25.6 ­9.97 11.07 80 26.7 ­9.91 11.01 82 27.8 ­9.86 10.96 84 28.9 ­9.80 10.90 86 30.0 ­9.74 10.84 88 31.1 ­9.69 10.79 90 32.2 ­9.63 10.73 92 33.3 ­9.57 10.67 94 34.4 ­9.51 10.61 The following list of ODEP bias voltages VS. temperature is based on the use of Main Modules built on any circuit board after the D 7993-5 board. °F °C V­ODEP V+ODEP 66 18.9 ­10.31 10.31 68 20.0 ­10.26 10.26 70 21.1 ­10.20 10.20 72 22.2 ­10.14 10.14 74 23.3 ­10.09 10.09 76 24.4 ­10.03 10.03 77 25.0 ­10.00 10.00 78 25.6 ­9.97 9.97 80 26.7 ­9.91 9.91 82 27.8 ­9.86 9.86 84 28.9 ­9.80 9.80 86 30.0 ­9.74 9.74 88 31.1 ­9.69 9.69 90 32.2 ­9.63 9.63 92 33.3 ­9.57 9.57 94 34.4 ­9.51 9.51 ­ODEP Procedure: Measure pin 3 of J500 and, if necessary, adjust R121 to obtain V­ODEP as specified above. Measure pin 3 of J500 and, if necessary, adjust R221 to obtain V­ODEP as specified above. +ODEP Procedure: Measure pin 4 of J500 and, if necessary, adjust R132 to obtain V+ODEP as specified above. Measure pin 4 of J500 and, if necessary, adjust R232 to obtain V+ODEP as specified above.

Standard Initial Conditions
Level controls fully clockwise. Stereo/Mono switch in Stereo. Sensitivity switch in 26 dB fixed gain position. 70-V mode switches in the 8/4 ohm position. It is assumed, in each step, that conditions of the amplifier are per these initial conditions unless otherwise specified.

Test 1: DC Offset
Spec: 0 VDC, ±10 mV. Initial Conditions: Controls per standard, inputs shorted. Procedure: Measure DC voltage at the output connectors (rear panel). There is no adjustment for output offset. If spec is not met, there is an electrical malfunction. Slightly out of spec measurement is usually due to U104/U204 out of tolorance.

Test 2: Output Bias Adjustment
Spec: 300 to 320 mVDC. Initial Conditions: Controls per standard, heatsink temperature less than 40°C. Procedure: Measure DC voltages on the output module across R31 (15 ohm), adjust R26 if necessary. Measure DC voltages on the output module across R32 (15 ohm), adjust R23 if necessary. Repeat for second channel.

Test 3: ODEP Voltage Adjustment
Spec: Bias Per Chart, ±0.1V DC. Initial Conditions: Controls per standard, heatsink at room temperature 20 to 30°C (68 to 86°F). Note: This adjustment should normally be performed within 2 minutes of turn on from ambient (cold) conditions. If possible measure heatsink temperature, if not measure ambient room temperature. Use this information when referencing the following chart. 12

Com-Tech 400 Amplifier Service Manual

Electrical Checkout Procedures
Test 4: AC Power Draw
Spec: 60 Watts maximum quiescent. Initial Conditions: Controls per standard. Procedure: With no input signal and no load, measure AC line wattage draw. If current draw is excessive, check for high AC line voltage or high bias voltage.

Test 8: Level Controls
Spec: Level controlled by level controls. Initial Conditions: Controls per standard. Procedure: No load. Inject a 1 kHz sine wave. With level controls fully clockwise you should see full gain. As controls are rotated counterclockwise, observe similar gain reduction in each channel. When complete, return level controls to fully clockwise position.

Test 5: Common Mode Rejection
Spec at 100 Hz: ­70 dB. Spec at 20 kHz: ­50 dB. Initial Conditions: Controls per standard. Procedure: No load. Inject a 0 dBu (.775VRMS) 100 Hz sine wave into each channel, one channel at a time, with inverting and non-inverting inputs shorted together. At the output measure less than ­44 dBu (4.9mVRMS). Inject a 0 dBu 20 kHz sine wave into each channel, one channel at a time, with inverting and non-inverting inputs shorted together. At the output measure less than ­24 dBu (49mVRMS). For Main Modules with board numbers lower than D 7993-5 adjust N100 and N200 to calibrate CMR. For Main Modules with board number D 7993-5 or greater adjust R921 and R1021.

Test 9: Current Limit
Spec: Current Limit at 13 Amps, ±2 Amps. Initial Conditions: Controls per standard. Procedure: Load each channel to 1 ohm. Inject a 1 kHz differentiated (or 10% duty cycle) square wave. See figure 4. Increase output level until current limit occurs. Current limit should occur at 13 ±2 Amps (13 Vpk). Observe clean (no oscillations) current clipping.

In
.047 uF

Out
1K Ohm

Test 6: Voltage Gain
Spec 26dB Gain: Gain of 20.0 ±3%. Spec 0.775V 8/4 ohm Sensitivity: ±6%. Spec 0.775V 70-V Sensitivity: ±6%. Initial Conditions: Controls per standard. Procedure: No load connected. Inject a 0.775 VAC 1 kHz sine wave with the Sensitivity Switch in the 26 dB position. Measure 15.5 VAC ±0.5 VAC at the amplifier output. Inject a 0.775 VAC 1 kHz sine wave with the Sensitivity Switch in the 0.775V 8/4 ohm position. Measure 42.4 VAC ±2.5 VAC at the amplifier output. Inject a 0.775 VAC 1 kHz sine wave with the Sensitivity Switch in the 0.775 VAC 70-V position and the Output Mode Switch in the 70-V position. Measure 70.7 VAC ±4.2 VAC at the amplifier output. Return the Sensitivity Switch to the 26 dB position. Return the Output Mode Switches to the 8/4 ohm position. Figure 4. Differentiator Circuit

Test 10: Slew Rate & 10 KHz Square Wave
Spec: 17 - 25 V/µS, 8 ohm load. Initial Conditions: Controls per standard. Procedure: Load each channel to 8 ohms. Inject a 10 kHz square wave to obtain 35 Volts zero-to-peak at each output. Observe the slope of the square wave. It should typically measure 17-25 V/µS. Also, the square wave must not include overshoot, ringing, or any type of oscillation.

Test 11: Crosstalk
Spec: -60 dB at 20 kHz. Initial Conditions: Controls per standard. Terminate input of channel not driven with 600 ohms. Procedure: 8 ohm load on each channel. Inject a 20 kHz sine wave into the channel 1 input and increase output level to 42 VAC. Measure less than 42 mVAC at the output of channel 2. Inject a 20 kHz sine wave into the channel 2 input and increase output level to 42 VAC. Measure less than 42 mVAC at the output of Ch 1.

Test 7: Phase Response
Spec: ±10° from 10 Hz to 20 kHz at 1 Watt. Initial Conditions: Controls per standard, 8 ohm load on each channel. Procedure: Inject a 1 kHz sine wave and adjust for 1 watt output (2.8 VAC). Check input and output signals against each other, input and output signals must be within 10° of each other.

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Com-Tech 400 Amplifier Service Manual

Electrical Checkout Procedures
Spec at 8 Ohm Stereo: 215 Watts/Ch at 0.1% THD Spec at 4 Ohm Stereo: 230 Watts/Ch at 0.1% THD Spec at 70-V Mode, Stereo: 210 Watts/Ch at 0.1% THD Initial Conditions: Controls per standard Procedure: Load each channel to 8 ohms. Inject a 1 kHz sine wave and measure at least 41.47 VAC at the output of each channel. Load each channel to 4 ohms. Inject a 1 kHz sine wave and measure at least 30.33 VAC at the output of each channel. Switch each channel to the 70-V mode. Load each channel to 25 ohms. Inject a 1 kHz sine wave and measure at least 70.7 VAC at the output of each channel. All power measurements must be at less than 0.1% THD.

Test 12: Output Power

Test 13: Reactive Loads
Spec: No oscillations. Safe with all types of loads. Initial Conditions: Controls per standard. Procedure Capacitive: Load each channel to 8 ohms in parallel with 2µF. Inject a 20 kHz sine wave with 30 VAC output for 10 seconds. Procedure Inductive: Load each channel to 8 ohms in parallel with 159µH. Inject a 1 kHz sine wave with 15 VAC output for 10 seconds. Procedure Torture: Load each channel with the primary (red and black leads) of a PS-U transformer (CPN D 7040-5). Each channel in the 70-V mode. Inject a 10 Hz sine wave with an output level sufficient enough to cause 3 to 5 flyback pulses for 10 seconds. Procedure Short: Inject a 60 Hz sine wave into the input and adjust for 5 VAC at the output. Short each chanel, one at a time, for 10 seconds.

Figure 5. ODEP Limiting Wave Form

Test 15: LF Protection
Spec: Amplifier mutes for dangerous subsonic frequencies. Initial Conditions: Controls per standard. Procedure: No load. Inject a .5 Hz 6 Vp-p, or a 2 Hz 6 VAC sine wave into each channel and verify that each channel cycles into mute.

Test 16: Signal to Noise Ratio

Test 14: ODEP Limiting
Spec: No oscillation on ODEP limiting wave form; either channel controls limiting in Parallel Mono mode. Initial Conditions: Controls per standard; rag or other obstruction blocking fan blade so it does not turn. Procedure: Load the amplifier to 4 ohms per channel. Inject a 60 Hz sine wave into each channel and adjust the output to 15 VAC. Allow the amplifier to heat up until you observe a wave form similar to figure 5. Allow the amplifier to cool for a few miniutes. Switch the amplifier to Parallel Mono mode and remove the load from channel 2. Inject a 60 Hz sine wave into each channel and adjust the output to 15 VAC. Allow the amplifier to heat up and observe limiting on both channels.

Spec: 100 dB below 8 ohm rated continuous average 20-20kHz power. Initial Conditions: Controls per standard. Short inputs. Procedure: Load each channel to 8 ohms. Measure less than 415µV at the output of each channel (20 Hz20 kHz bandpass filter).

Test 17: Turn off Transients
Spec: < 80mV across an 8 ohm speaker load Initial Conditions: Controls per standard. Procedure: Load the output with an 8 ohm speaker. From an on condition, turn off the amplifier and monitor the output noise at the time of turn off. Note: Turn off noise may increase significantly if the amplifier is cycled off and on.

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Com-Tech 400 Amplifier Service Manual

Electrical Checkout Procedures
Spec at 0 dB output: 0.01%. Spec at -35 dB output: 0.05%. Initial Conditions: Controls per standard. Procedure: Load each channel to 8 ohms. Inject a SMPTE standard IM signal (60 Hz and 7 kHz sine wave mixed at 4:1 ratio). Set the 60 Hz portion of the sine wave to 32 volts RMS. Set the 7 kHz portion to 25%. With an IM analyzer measure less than 0.01% IMD. Repeat test at -35 dB (reference 32 volts RMS, 60 Hz portion) and measure less than 0.05% IMD.

Test 18: Intermodulation Distortion

Test 19: Clipping
Spec: No protective action during test. Initial Conditions: Controls per standard. Procedure: Load each channel to 8 ohms. Inject a 1 kHz sine wave into each input and drive the output 6 dB into clip for 10 seconds. The amplifier should not activate any protective circuits (ODEP, Fault, or LF Protection).

Post Testing
After completion of testing, if all tests are satisfactory, the amplifier controls should be returned to the positions required by customer. If conditions are unknown or unspecified, factory settings are as follows: Level Controls: 9 to 11 O'Clock. Sensitivity Switch: 0.775V 8/4 Ohm. Stereo/Mono Switch: Stereo. 70-V Mode Switches: 8/4 Ohm position. Power: Off

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Com-Tech 400 Amplifier Service Manual

Parts List (Non-Module)
Supplimental Items
CPN A10087-71012 C 3342-0 D 4137-2 A10086-70808 A10101-12 F11489-6 K80636-2 Item Rack Screw, 10-32 x .75 Feet, Selfstick Black Nylon Washer Screw, 8-32 x .5 (For volume cover) Spacer, #8 x 5/16OD x 1/4L (For volume cover) Plexiglass Plate (Volume cover) CT Series Reference Manual Quantity 8 4 4 2 2 1 1

Power Supply
CPN A10087-11028 C10169-8 C10171-4 D 7604-8 D 9010-6 D 8036-2 A10094-8 A10099-7 A10098-5 C 8752-5 C 9852-2 C 9870-4 D 2934-4 D 6764-1 D 8438-0 Item Screw, 10-32 x 1.75 (For transformer) Breaker, 15 Amp VDE Breaker, 8 Amp VDE (200V-240V Models) Power Transformer (120V 60 Hz) Power Transformer (220V/240V) Power Transformer (100V/120V) Washer, #10 Internal Tooth Nylon Shoulder Washer, #10 Washer, 1/4" Belleville Spring Bridge Rectifier, 35A 400V Capacitor, 6300µF 200V Electrolytic Screw, 10-32 x .38 Solder Lug, .218 Hole Washer, Shoulder Bracket, Capacitor Quantity 4 1 1 1 1 1 4 4 4 2 2 4 4 4 2

Output Assembly (One Per Channel)
CPN A10315-1 C 8188-2 D 6729-4 C 7065-3 C 8573-5 C 8574-3 M20591-0 M20590-2 D 7665-9 D 7666-7 D 7796-2 D 6280-8 D 6104-0 D 7797-0 C 7597-4 D 7026-4 D 8774-8 F12019-0 C 8813-5 B 5842-8 C 5826-0 B 5464-1 M21324-5 16 Item Screw, 6-32 x .56 Hex Washer Head Output Power Transistor, PNP Output Power Transistor, NPN Output Power Transistor, PNP (early units) Driver Transistor, 2SA1186 PNP Driver Transistor, 2SC2837 NPN Old Style Driver Transistor Assm. NPN, 2SC2527 Old Style Driver Transistor Assm. PNP, 2SA1077 Mounting Clip, TO3P (For Drivers) Mounting Bracket, TO3P (For Drivers) Sil Pad, 2.87 x 14.57 (Between Heatsink & Chassis) Sil Pad for use with Output Board P10315-3 Sil Pad for use with Output Board P10233-8 Output Pad (Between Module and Chassis) Output Pad for use with Output Board P10315-3 Output Pad for use with Output Board P10233-8 PTC, 95DegC Cast Alum. Heatsink (Under Diode String) Bias Transistor MPS8097/MPSA18 NPN (Q18) Tubing, #24 Thin Wall Red (For Q18) LM234Z-6 Thermal Sense (S100/200) Tubing, #24 Teflon Thin Wall Aluminum Heat Sink, 3/4" With Fins Quantity (Per Channel) 12 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 Order in Inches 1 Order in Inches 2

Com-Tech 400 Amplifier Service Manual

Parts List (Non-Module)
Back Panel Assembly
CPN D 8367-1 A10086-10410 A10086-70808 A10094-2 A10100-7 A10109-70808 A10214-4 C10187-0 A11793-0105D A10793-0503D C 4508-5 C 5990-4 C 6821-0 C 7957-1 C 8812-7 C10060-9 D 6899-5 D 7623-8 F12690-8 P10286-6 Item Knob, .5 Dia. Level Control Screw, 4-40 x .62 Screw, 8-32 x .5 Lockwasher, #4 Internal Star Aluminum Spacer, .250OD x .140ID x .312L Screw, 8-18 x .5 Strain Relief Strain Relief (For European Power Cord) Power Cord, 16-3 SJT Neon UL/CSA Power Cord, European Plug (E-13 Amplifiers) IC Socket, 16 Pin Barrier Block, 4 Term. Edge Card Connector, 22 Contact Slide Switch, DPDT 15A (70-V Mode) Cable Tie, 5.5" Header, 5 Pin R Angle Locking Ribbon Connector, PIP Daisy Cable, 10" 22AWG With Terminals Back Panel PIP Interconnect Board Quantity 2 2 4 2 2 4 1 1 1 1 1 1 1 2 2 1 1 1 1 1

Chassis Front Assembly
CPN A10031-1 A10090-70808 A10101-5 A10173-1 C 5297-4 C 6487-0 D 6944-9 F11449J9 F12706-2 F12710-4 Item Captive Nut, 8-32 x .060 Flush (For rack ears) Screw, 8-32 x .5 Oval Head (For Grille) Nylon Washer, .5 x .136 x .02 (For Grille) Clip, Filter Grille Screw, 8-32 x .37 (For rack ears) Power Switch, 2 Pole 22 Amp Rocker Air Filter, 1.45 x 16.23 Front Panel Overlay End Cap (For Rack ears) Grille, Filter Quantity 4 3 3 3 4 1 1 1 2 1

Main Chassis Assembly
CPN A10094-3 A10110-70605 D 7249-2 D 8501-5 D 8548-6 A10086-10606 A10086-70806 A10094-3 A10094-6 A10109-10822 A10110-70812 A10192-1 C 1811-6 C 3163-0 Item Washer, #6 Internal Star, Black Screw, 6-32 x .312 Taptite (For covers) Label, 3 Position Voltage Gain Top Cover Bottom Cover Screw, 6-32 x .375 Screw, 8-32 x .37 Washer, #6 Internal Star, Black Washer, #8 Internal Star Screw, 8-18 x 1.375 8-32 x .750 Taptite Snap Bushing, OCB .500 4" Cable Tie Solder Lug, #6 Quantity 8 7 1 1 1 4 1 3 2 2 2 3 8 2 17

Com-Tech 400 Amplifier Service Manual

Parts List (Non-Module)
Main Chassis Assembly Cont.
CPN C 6457-3 C 6912-7 C 6913-5 C 6914-3 C 7705-4 C 9491-9 C 9953-8 C10111-0 D 7060-3 F11632-1 F12642-9 Item Screw, #8 x 3/8 Tension Retaining Board Supports 1" Spacer Toggle Nut, Plastic .75" Spacer Toggle Nut, Plastic Flat Cable Clamp Screw, 6-32 x .312 Screw, 6-20 x .312 Button, Mtg. Sil Pad, 7 Mil 2.05 x .775 Bracket, Transformer Mtg. Chassis, 3.5" Quantity 2 2 2 2 2 3 6 2 1 1 1

PIP-BB
CPN M46011-9 A10086-70806 A10094-5 A10110-10608 A10266-2202 C 3842-9 C 6806-1 C 7161-0 F12553J7 P10343-5 Item PIP-BB Assembly Screw, 8-32 x .37 Lockwasher, #8 Internal Star Black Screw, 6-32 x .5 Resistor, 22 Ohm .5W Barrier Block, 3 Position Capacitor, .01µF 100V Screw, #8 x 1/4 #6 PNHD Panel PC Board Quantity 1 2 2 4 2 2 2 2 1 1

Fan Assembly
CPN M44084-8 A10110-70605 C 7062-0 C 9939-7 D 8439-8 H43495-3 Item CT Fan Assembly Screw, 6-32 x .312 Taptite Screw, 6-32 x 5/16 Fan Blade Fan Bracket Fan Motor with Faston Connectors Quantity 1 2 2 1 1 1

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Com-Tech 400 Amplifier Service Manual

Module and Schematic Information
Module History
The Com Tech 400B amplifier was introduced in 1990. Since then there have been several updates and revisions, some of which called for new modules. The following is a list of all modules used up to this date, December 1995.

Control Module:
Q42762-7 CT-200/400 fan control on P10317-9 board. Q43214-8 CT-400/800 fan control on P10404-5 board. Q43242-9 CT control module for Export models. On P10405-2 board.

Output Modules: (left and right are identical)
Q42716-3 Original Output Module on P10233-8 or P10263-5 board. Q42888-0 Output Module on P10315-3 board. Q42969-8 Output Module on P10337-7 board. No longer available. Use Q43188-4 as service replacement. Q43188-4 Output Module on P10396-3 board.

Display Module:
Q42706-4 CT display on D 7083-5 board.

Schematic Information:
The schematics provided are representative only. There may be slight variations between amplifier to amplifier. These schematics are intended to be used for troubleshooting purposes only. For amplifiers with main boards D 7605-5, D 7911-7, D 7993-5, and D 8283-0 or earlier, refer to schematic number J0523-1. For amplifiers with main board D 8369-7 refer to schematic number J0631-2.

Main Modules:
Q42781-7 Original B Version Main Module. This Module's parts list is not documented. No longer available. Use Q43129-8 as a service replacement. Q42921-9 Main Module on D 7605-5 board. This Module's parts list is not documented. No longer available. Use Q23129-8 as a service replacement. Q43012-6 Main Module on D 7911-7 board. Use Q43129-8 as a service replacement. Q43043-1 Main Module on D 7993-5 board. No longer available. Use Q43129-8 as service replacement. Q43129-8 Main Module on D 8283-0 board. Q43238-7 Main Module on D 8369-7 board. Detent Pots. Not reverse compatible.

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Com-Tech 400 Amplifier Service Manual

Q42762-7 Control Module (P10317-9 board) Parts Lists
Capacitors
C700 C701 C900 C901 C800 C801 C 8426-6 C 8426-6 C 8963-8 C 8963-8 .1µF 250V .1µF 250V .47µF 250V .47µF 250V

Resistors
R700 R701 R900 R901 R902 R903 R904 R905 R800 R801 A10266-1222 A10266-1812 A10266-2722 A10266-1021 C 7669-2 C 7669-2 A10266-3902 A10266-3602 1.2K .5W 180 .5W 2.7K .5W 1.5K .5W 300 10W 300 10W 39 .5W 36 .5W

Diodes
D700 D900 D800 C 3181-2 C 2851-1 1N4148 1N4004

Relays
K1 C 7860-7 SPST

ICs
U700 U901 U902 U800 C 7664-3 C 7665-0 C 7665-0 MOC3031 Optotriac MOC3011 Optotriac MOC3011 Optotriac

Transistors
Q700 Q701 Q900 Q901 Q902 Q800 Q801 C 3625-8 C 7663-5 C 3625-8 C 3625-8 C 3625-8 PNP 2N4125 Triac MAC224A4 PNP 2N4125 PNP 2N4125 PNP 2N4125

Misc.
Board J900 Tab Terminal 0 Ohm Jmp P10317-9 C 7672-6 C 7817-7 C 5868-2 8 Pin MTA Header W1-W3, W100-W102 W200-W202

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Com-Tech 400 Amplifier Service Manual

Q43214-8 Control Module (P10404-5 board) Parts List
Capacitors
C700 C701 C900 C901 C800 C801 C C C C 8426-6 8426-6 8963-8 8963-8 .1µF 200V .1µF 200V .47µF 250V .47µF 250V

Resistors
R700 R701 R900 R901 R902 R903 R904 R905 R800 R801 A10266-1222 A10266-1812 A10266-2722 A10266-1021 C 7669-2 C 7669-2 A10266-3902 A10266-3602 1.2K .5W 180 .5W 2.7K .5W 1.5K .5W 300 10W 300 10W 39 .5W 36 .5W

Diodes
D700 D900 D800 C 3181-2 C 2851-1 1N4148 1N4004

Relays
K1 C 7860-7 SPST

ICs
U700 U901 U800 C 7664-3 C 7665-0 MOC3031 Optotriac MOC3011 Optotriac

Transistors
Q700 Q701 Q900 Q901 Q902 Q800 Q801 C C C C C 3625-8 7663-5 3625-8 3625-8 3625-8 PNP 2N4125 Triac MAC224A4 PNP 2N4125 PNP 2N4125 PNP 2N4125

Misc.
Board J900 J901 Tab Terminal P10404-5 C 7672-6 C 7873-0 C 7817-7 8 Pin MTA Header 2 Pin MTA Header W1-W3, W100-W102, W200-W202

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Com-Tech 400 Amplifier Service Manual

Q43242-9 Control Module (P10405-2 board) Parts List
Capacitors
C700 C701 C900 C901 C800 C801 C 8426-6 C 8426-6 C 8963-8 C 8963-8 .1µF 250V .1µF 250V .47µF 250V .47µF 250V

Resistors
R700 R701 R702 R703 R900 R901 R902 R903 R904 R905 R800 R801 R802 R803 A10266-3622 A10266-1812 A10266-3622 A10266-3622 A10266-2722 A10266-1021 C 7669-2 C 7669-2 A10266-3902 A10266-3602 3.6K .5W 180 .5W 3.6K .5W 3.6K .5W 2.7K .5W 1.5K .5W 300 10W 300 10W 39 .5W 36 .5W

Diodes
D700 D900 D800 C 3181-2 C 2851-1 1N4148 1N4004

Relays
K1 C 7860-7 SPST

ICs
U700 U901 U902 U800 C 7664-3 C 7665-0 C 7665-0 MOC3031 Optotriac MOC3011 Optotriac MOC3011 Optotriac

Transistors
Q700 Q701 Q900 Q901 Q902 Q800 Q801 C 3625-8 C 7663-5 C 3625-8 C 3625-8 C 3625-8 PNP 2N4125 Triac MAC224A4 PNP 2N4125 PNP 2N4125 PNP 2N4125

Misc.
Board J900 J901 Tab Terminal 0 Ohm Jmp P10405-2 C 7672-6 C 7873-0 C 7817-7 C 5868-2 8 Pin MTA Header 2 Pin MTA Header W1-W3, W100-W102 W200-W202

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Com-Tech 400 Amplifier Service Manual

Q42706-4 Display Module (D 7083-5 board) Parts List
Capacitors
C500 C901 C600 C 6802-0 C 6804-6 .47µF 50V .1µF 50V

Integrated Circuits
U903 U904 U905 C 4345-2 C 7661-9 C 4345-2 LMT339 LM358N LMT339

Diodes
D500 D501 D900 D901 D600 D601 C 3181-2 C 3181-2 C 3533-4 C 3533-4 1N4148 1N4148 1N966B 16V Zener 1N966B 16V Zener

Misc.
Board IC Socket LED Spacer Cable D 7083-5 C 4508-5 C 7712-0 H42913-6 16 Pin 8 Cond 24AWG Ribbon Cable with Connector

LED's
E500 E501 E502 E900 E600 E601 E602 C 7863-1 C 4431-0 C 7863-1 C 4342-9 Green Yellow Green Amber

Transistors
Q500 Q501 Q502 Q503 Q600 Q601 Q602 Q603 C 3625-8 C 3625-8 C 7458-0 C 3625-8 2N4125 2N4125 2N4123 2N4125

Resistors
R500 R501 R502 R503 R504 R505 R506 R507 R508 R905 R906 R907 R908 R909 R910 R911 R912 R913 R914 R915 R916 R917 R918 R600 R601 R602 R603 R604 R605 R606 R607 R608 A10266-1031 A10266-2221 A10266-1051 A102662751 A10266-2032 A10266-2221 A10266-4751 A10266-2221 A10266-1021 A10266-5141 A10266-2721 A10266-5141 A10266-3931 A10266-3931 A10266-4741 A10266-3931 A10266-1041 A10266-1031 A10266-8211 A10266-3931 A10266-3631 A10266-8211 A10266-3931 10K 2.2K 1M 2.7M 20K .5W 2.2K 4.7M 2.2K 1K 510K 2.7K 510K 39K 39K 470K 39K 100K 10K 820 39K 36K 820 39K

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Com-Tech 400 Amplifier Service Manual

Q42716-3 Output Module (P10233-8 or P10263-5 board) Parts List
Capacitors
C01 C02 C03 C04 C05 C06 C07 C08 C09 C 3978-1 C 2938-6 C 2938-6 C 6806-1 C 6806-1 C 6806-1 C 6807-9 C 6809-5 C 6850-7 .047µF .1µF .1µF .01µF .01µF .01µF .001µF 220pF 180pF

Resistors
R00 R01 R02 R04 R07 R09 R10 R11 R12 R13 R16 R19 R21 R22 R23 R24 R25 R26 R27 R28 R30* C 2626-7 C 2872-7 C 3299-2 C 6486-2 C 6486-2 C 4479-9 C 2872-7 C 7317-8 C 1001-4 C 2626-7 C 6486-2 C 6486-2 C 3299-2 C 4479-9 C 6844-2 C 4300-7 C 2628-3 C 6844-2 C 6495-3 C 4300-7 C 6626-3* 470 100 5.6 .5W .2 5W .2 5W 22 100 2.7 5W 2.7 1W 470 .2 5W .2 5W 5.6 .5W 22 250 Pot LS Bias 13K 2.2K 250 Pot HS Bias 390 13K 102*

Diodes
D01 D02 D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004

Misc.
Board Jumpers J500 J600 P10233-8 or P10263-5 C 5868-2 0 Ohm .25W C 7057-0 10 Pin Header

Inductors
L00 L01 L02 C 6592-6 C 3510-2 C 3510-2 1.3µH Output Coil 470µH 470µH

Transistors
Q17 Q19 C 7271-7 C 7318-6 NPN MPSU10 PNP MPSU60

Note: Q18, S100, Driver Transistors, and Output Transistors are not included with Output Module. See Output Assembly parts list for these part numbers.

*Note: R30 is 102 Ohms in most units, though in some cases a different value may be used to match the installed S100/S200 LM334 (C5826-0) device grade. This is the standard value and is used with the most common LM334 grade, green. If the LM334 is marked with a blue dot, R30 should be a 107 Ohm resistor (A10265-10701); if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001).

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Com-Tech 400 Amplifier Service Manual

Q42888-0 Output Module (P10315-3 board) Parts List
Capacitors
C01 C02 C03 C04 C05 C06 C07 C08 C09 C 8511-5 C 8426-6 C 8426-6 C 6805-3 C 6805-3 C 6806-1 C 6807-9 C 6809-5 C 6810-3 .047µF 250V Ax .1µF .1µF .022µF .022µF .01µF 100V Ax .001µF 100V Ax 220pF 180pF

Resistors
R00 R01 R02 R04 R07 R09 R10 R11 R12 R13 R16 R19 R21 R22 R23 R24 R25 R26 R27 R28 R30* C 2626-7 C 2872-7 C 7778-1 C 6486-2 C 6486-2 C 7779-9 C 2872-7 C 7317-8 C 1001-4 C 2626-7 C 6486-2 C 6486-2 C 7778-1 C 7779-9 C 6844-2 C 4300-7 C 2628-3 C 6844-2 C 6495-3 C 4300-7 C 6626-3* 470 100 5.6 .5W Flame Proof .2 5W .2 5W 22 Flame Proof 100 2.7 5W 2.7 1W 470 .2 5W .2 5W 5.6 .5W Flame Proof 22 Flame Proof 250 Pot LS Bias 13K 2.2K 250 Pot HS Bias 390 13K 102*

Diodes
D01 D02 D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004

Misc.
Board Jumpers Clips J500 J600 P10315-3 C 5868-2 D 6414-3 C 7057-0 0 Ohm .25W Q17/Q19 Hold Down 10 Pin Header

Inductors
L00 L01 L02 C 6592-6 C 3510-2 C 3510-2 1.3µH Output Coil 470µH 470µH

Transistors
Q17 Q19 C 8508-1 C 8509-9 NPN 2SC3298B PNP 2SA1306B

Note: Q18, S100, Driver Transistors, and Output Transistors are not included with Output Module. See Output Assembly parts list for part numbers.

*Note: R30 is 102 Ohms in most units, though in some cases a different value may be used to match the installed S100/S200 LM334 (C5826-0) device grade. This is the standard value and is used with the most common LM334 grade, green. If the LM334 is marked with a blue dot, R30 should be a 107 Ohm resistor (A10265-10701); if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001).

25

Com-Tech 400 Amplifier Service Manual

Q42969-8 Output Module (P10337-7 board) Parts List
Capacitors
C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C43 C 8511-5 C 8426-6 C 8426-6 C 6805-3 C 6805-3 C 6806-1 C 6807-9 C 6810-3 C 6809-5 C 7697-3 C 7697-3 C 7697-3 .047µF 250V Ax .1µF .1µF .022µF .022µF .01µF 100V Ax .001µF 100V Ax 180pF 220pF .01µF .01µF .01µF

Resistors
R00 R01 R04 R07 R10 R11 R12 R13 R14 R16 R19 R23 R24 R25 R26 R27 R28 R29 R30* R31 R32 R33 R34 A10266-4711 A10266-1011 C 6486-2 C 6486-2 A10266-1011 A10266-2R73 A10266-2R73 A10266-4711 A10266-2R73 C 6486-2 C 6486-2 C 6844-2 A10266-1331 A10266-2221 C 6844-2 A10266-3911 A10266-1331 A10266-5101 A10265-10201* C 3614-2 C 3614-2 C 7779-9 C 7779-9 470 100 .2 5W .2 5W 100 2.7 1W 2.7 1W 470 2.7 1W .2 5W .2 5W 250 Pot LS Bias 13K 2.2K 250 Pot HS Bias 390 13K 51 102* 15 .5W Flame Proof 15 .5W Flame Proof 22 .5W Flame Proof 22 .5W Flame Proof

Diodes
D01 D02 D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004

Misc.
Board Jumpers Clips J500 J600 P10337-7 C 5868-2 D 6414-3 C 7057-0 0 Ohm .25W Q17/Q19 Hold Down 10 Pin Header

Inductors
L00 L01 L02 C 6592-6 C 3510-2 C 3510-2 1.3µH Output Coil 470µH 470µH

Transistors
Q17 Q19 C 8508-1 C 8509-9 NPN 2SC3298B PNP 2SA1306B

Note: Q18, S100, Driver Transistors, and Output Transistors are not included with the Output Module. See Output Assembly parts list for part numbers.

*Note: R30 is 102 Ohms in most units, though in some cases a different value may be used to match the installed S100/S200 LM334 (C5826-0) device grade. This is the standard value and is used with the most common LM334 grade, green. If the LM334 is marked with a blue dot, R30 should be a 107 Ohm resistor (A10265-10701); if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001).

26

Com-Tech 400 Amplifier Service Manual

Q43188-4 Output Module (P10396-3 board) Parts List Cont.
Capacitors
C01 C02 C03 C04 C05 C06 C07 C08 C09 C43 C 8511-5 C 8426-6 C 8426-6 C 6805-3 C 6805-3 C 6806-1 C 6807-9 C 6810-3 C 6809-5 C 7697-3 .047µF 250V Ax .1µF .1µF .022µF .022µF .01µF 100V Ax .001µF 100V Ax 180pF 220pF .01µF Disc

Resistors
R00 R01 R04 R07 R10 R11 R12 R13 R14 R16 R19 R23 R24 R25 R26 R27 R28 R29 R30* R31 R32 R33 R34 A10266-4711 470 A10266-1011 100 C 6486-2 .2 5W C 6486-2 .2 5W A10266-1011 100 A10266-2R73 2.7 1W A10266-2R73 2.7 1W A10266-4711 470 A10266-2R73 2.7 1W C 6486-2 .2 5W C 6486-2 .2 5W C 6844-2 250 Pot LS Bias A10266-1331 13K A10266-2221 2.2K C 6844-2 250 Pot HS Bias A10266-3911 390 A10266-1331 13K A10266-5101 51 A10265-10201* 102* 1% C 3614-2 15 .5W C 3614-2 15 .5W C 7779-9 22 .5W Flame Proof C 7779-9 22 .5W Flame Proof

Diodes
D01 D02 D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004

Misc.
Board Z1-Z7, Z9 Z8 Clips J500 J600 P10396-3 C 5868-2 A10124-24 D 6414-3 C 7057-0 0 Ohm Jumper Solid Wire Q17/Q19 Hold Down 10 Pin Header

Inductors
L00 L01 L02 C 6592-6 C 3510-2 C 3510-2 1.3µH Output Coil 470µH 470µH

Transistors
Q17 Q19 C10155-7 C10156-5 NPN 2SC4793 PNP 2SA1837

Note: Q18, S100, Driver Transistors, and Output Transistors are not included with Output Module. See Output Assembly parts list for part numbers.

*Note: R30 is 102 Ohms in most units, though in some cases a different value may be used to match the installed S100/S200 LM334 (C5826-0) device grade. This is the standard value and is used with the most common LM334 grade, green. If the LM334 is marked with a blue dot, R30 should be a 107 Ohm resistor (A10265-10701); if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001).

27

Com-Tech 400 Amplifier Service Manual

Q43012-6 Main Module (D 7911-7 board) Parts List
Capacitors
C1 C2 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C122 C123 C124 C129 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 28 C 4303-1 C 3913-8 C 6802-0 A10124-24 A10124-24 C 6804-6 C 5311-3 C 2821-4 C 6805-3 C 6805-3 C 6812-9 C 6812-9 C 6804-6 C 6814-5 C 7417-6 C 5362-6 C 6804-6 C 6803-8 C 6802-0 C 8854-9 C 8854-9 C 6802-0 C 6803-8 C 6814-5 C 6802-0 C 6804-6 C 6811-1 C 6812-9 C 6812-9 C 6814-5 C 6812-9 C 6813-7 C 6805-3 C 6805-3 C 6808-7 C 6808-7 C 6813-7 C 6813-7 C 6812-9 C 6812-9 C 8576-8 C 6812-9 C 6812-9 C 6806-1 C 6810-3 C 6808-7 C 6806-1 C 6806-1 C 6950-7 C 6804-6 C 8426-6 1000µF 470µF .47µF Jumper Wire Jumper Wire .1µF 22µF 10pF .022µF .022µF 47pF 47pF .1µF 12pF .0033µF 2.2µF .1µF .12µF .47µF 100µF 100µF .47µF .12µF 12pF .47µF .1µF 100pF 47pF 47pF 12pF 47pF 27pF .022µF .022µF 470pF 470pF 27pF 27pF 47pF 47pF 100µF 47pF 47pF .01µF 180pF 470pF .01µF .01µF 82pF 5% .1µF .1µF 250V C155 C156 C157 C255 C256 C257 C 6804-6 C 6804-6 C 6806-1 .1µF .1µF .01µF

Diodes
D1 D2 D3 D4 D5 D6 D7 D108 D109 D110 D111 D112 D113 D114 D115 D120 D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 2851-1 C 3181-2 C 3181-2 C 3181-2 C 5061-4 C 3181-2 C 3181-2 OPEN OPEN C 3181-2 C 3181-2 C 3181-2 C 5061-4 C 3181-2 C 3181-2 C 5061-4 C 5061-4 C 5061-4 C 3181-2 C 3181-2 C 3181-2 C 3181-2 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4004 1N4148 1N4148 1N4148 1N3070 1N4148 1N4148 1N4148 1N4148 1N4148 1N3070 1N4148 1N4148 1N3070 1N3070 1N3070 1N4148 1N4148 1N4148 1N4148

C200 C201 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C222 C223 C224 C229 C230 C233 C234 C235 C236 C237 C238 C239 C240 C241 C244 C245 C246 C247 C248 C249 C250 C251 C252 C253 C254

D208 D209 D210 D211 D212 D213 D214 D215 D220 D221 D222 D223 D224 D225 D226 D227 D228 D229 D230 D231 D232

Transistors
Q100 Q101 Q102 Q103 Q105 Q106 Q107 Q108 Q109 Q110 Q112 Q113 Q115 Q116 Q117 Q118 Q119 Q200 Q201 Q202 Q203 Q205 Q206 Q207 Q208 Q209 Q210 Q212 Q213 Q215 Q216 Q217 Q218 Q219 D 2961-7 C 3578-9 C 3810-6 C 3786-8 C 3578-9 C 3625-8 C 3786-8 C 5891-4 D 2961-7 C 3810-6 C 3625-8 C 3625-8 D 2962-5 C 3786-8 D 2961-7 D 2961-7 C 3625-8 NPN 2N3859A PNP MPSA93 NPN MPSA43 PNP PN4250 PNP MPSA93 NPN 2N4125 PNP PN4250 NPN MTS105 NPN 2N3859A NPN MPSA43 NPN 2N4125 NPN 2N4125 NPN MPS8097 PNP PN4250 NPN 2N3859A NPN 2N3859A NPN 2N4125

Com-Tech 400 Amplifier Service Manual

Q43012-6 Main Module (D 7911-7 board) Parts List
Q120 Q121 Q122 Q123 Q124 Q220 Q221 Q222 Q223 Q224 C C C C C 3625-8 7458-0 7458-0 7458-0 3625-8 NPN NPN NPN NPN NPN 2N4125 2N4123 2N4123 2N4123 2N4125 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R170 R171 R173 R174 R175 R176 R177 R179 R180 R181 R182 R183 R184 R185 R231 R232 R233 R234 R235 R236 R237 R238 R239 R240 R241 R242 R243 R244 R245 R246 R247 R248 R249 R250 R251 R252 R253 R254 R255 R256 R257 R258 R259 R260 R261 R262 R263 R264 R265 R266 R267 R268 R270 R271 R273 R274 R275 R276 R277 R279 R280 R281 R282 R283 R284 R285 A10266-1031 C 5062-2 A10266-2741 A10266-2032 C 7782-3 A10266-6821 C 7782-3 A10266-6821 A10266-8211 A10266-6801 A10266-1541 A10266-1541 A10266-1041 A10266-1041 A10266-1851 A10266-1031 C 7781-5 A10266-2721 C 7781-5 A10266-2721 A10266-1031 A10266-1231 JUMPER A10265-12131 A10266-1321 A10266-1321 A10266-1321 A10266-9121 A10266-1021 A10266-10021 A10266-4701 A10266-4701 A10265-12131 A10265-10021 A10265-12131 A10266-1851 A10265-10011 A10265-95301 A10265-10011 A10265-95301 A10265-10021 A10265-24921 A10265-15821 A10265-24921 A10265-69811 A10266-1321 A10266-4711 A10266-4721 A10266-2201 A10266-2421 A10266-4741 A10266-2421 10K 100K Pot (+ODEP) 270K 20K .5W 100 Flame Proof 6.8K 100 Flame Proof 6.8K 820 68 150K 150K 100K 100K 1.8M 10K 200 .5W FP 2.7K 200 .5W FP 2.7K 10K 12K A10124-24 121K 1% 1.3K 1.3K 1.3K 9.1K 1K 10K 1% 47 47 121K 1% 10K 1% 121K 1% 1.8M 1K 1% 953 1% 1K 1% 953 1% 10K 1% 24.9K 1% 15.8K 1% 24.9K 1% 6.98K 1% 1.3K 470 4.7K 22 2.4K 470K 2.4K 29

Resistors
N100 N101 N102 R1 R2 R3 R4 R7 R8 R9 R10 R16 R17 R18 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 N200 N201 N202

R200 R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 R226 R227 R228 R229 R230

(.25W 5% unless noted otherwise) D 4669-4 Resistor Network D 6081-0 Resistor Network D 6082-8 Resistor Network A10265-53621 53.6K 1% OPEN OPEN A10265-46421 46.4K 1% A10266-1041 100K A10266-2031 20K A10266-5121 5.1K OPEN A10266-5121 5.1K A10266-2031 20K A10266-1041 100K C 7409-3 5K Linear Pot A10265-49911 4.99K 1% A10266-5111 510 A10265-10031 100K 1% A10266-2721 2.7K A10266-2721 2.7K A10266-1231 12K A10266-6831 68K A10266-8211 820 A10266-6801 68 A10266-6831 68K A10266-1231 12K A10266-5131 51K A10266-4721 4.7K A10266-4721 4.7K A10266-5141 510K A10266-2751 2.7M A10266-4731 47K A10266-2711 270 A10266-5111 510 A10266-2711 270 C 5062-2 100K Pot (-ODEP) A10266-2741 270K A10266-2032 20K .5W A10266-6821 6.8K C 7782-3 100 Flame Proof C 7782-3 100 Flame Proof A10266-6821 6.8K A10266-1031 10K A10266-1041 100K A10266-1041 100K

Com-Tech 400 Amplifier Service Manual

Q43012-6 Main Module (D 7911-7 board) Parts List
R186 R187 R188 R189 R190 R191 R192 R193 R194 R195 R196 R197 R198 R199 R906 R907 R908 R909 R910 R911 R912 R913 R914 R915 R916 R286 R287 R288 R289 R290 R291 R292 R293 R294 R295 R296 R297 R298 R299 R1006 R1007 R1008 R1009 R1010 R1011 R1012 R1013 R1014 R1015 R1016 A10266-2751 A10266-3631 A10266-3631 A10266-2731 A10266-2051 A10266-3331 A10266-1031 A10266-1031 A10266-1041 A10266-3021 A10266-4721 A10266-1031 A10266-4721 A10266-1031 OPEN OPEN OPEN A10266-4741 A10266-4741 A10266-1521 A10266-4711 A10266-1051 A10266-1051 A10266-2201 A10266-2201 2.7M 36K 36K 27K 2M 33K 10K 10K 100K 3K 4.7K 10K 4.7K 10K

IC's
U1 U2 U100 U101 U102 U103 U104 U200 U201 U202 U203 U204 C C C C C C C 5095-2 5096-0 6911-9 4345-2 4345-2 6910-1 7558-7 UA7815 UA7915 UPA75 LM339 LM339 UPA76 MC33079P

Misc.
Board D 7993-5 Socket C 3450-1 Nut A10102-5 Heatsink C 5341-0 Torq Spreader C 6541-4 Washer A10096-5 Screw A10240-0608 J1 C 7593-4 J2 C 4508-5 J3 C 7526-4 J100 J200 OPEN J500 J800 D 6619-7 J600 J700 D 6620-5 Cable Tie C 1811-6 14 Pin (Qty 6) Hex 6-32 (Qty 2) TO-220 (Qty 2) (Qty 2) #6, Split (Qty 2) Stainless (Qty 2) 5 Pin Header 16 Pin Socket 3 Pin Header 10 Inch Ribbon 6 Inch Ribbon (Qty 4)

470K 470K 1.5K 470 1M 1M 22 22

Switches
S2 S3 S4 OPEN C 7960-5 C 6781-6 Sensitivity Switch, St/Mono

30

Com-Tech 400 Amplifier Service Manual

Q43043-1 Main Module (D 7993-5 board) Parts List
Capacitors
C1 C2 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C122 C123 C124 C129 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 C 4303-1 C 3913-8 C 6802-0 A10124-24 A10124-24 C 8897-8 C 5311-3 C 2821-4 C 6805-3 C 6805-3 C 6812-9 C 6812-9 C 8897-8 C 6814-5 C 7417-6 C 5362-6 C 8897-8 C 8991-9 C 8987-7 C 8854-9 C 8854-9 C 8987-7 C 8991-9 C 6814-5 C 6802-0 C 8897-8 C 6811-1 C 6812-9 C 6812-9 C 6814-5 C 6812-9 C 6813-7 C 6805-3 C 6805-3 C 6808