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Alpha 1200s
Powered Subwoofer SERVICE MANUAL

Infinity Systems Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 4/2004

Alpha 1200s
- CONTENTS -

SPECIFICATIONS .......................................................................1 DETAILED SPECIFICATIONS .......................................................2 CONTROLS....................................... .........................................4 CONNECTIONS....................................... ...................................5 OPERATION....................................... ........................................6 BASS OPTIMIZATION SYSTEM......................................................7 BLOCK DIAGRAM.........................................................................8 BULLETIN INF2004-01....................................... ..........................9 EXPLODED VIEW.......................................................................10 PCB DRAWINGS..........................................................................11 ELECTRICAL PARTS LIST ...........................................................16 INTEGRATED CIRCUIT/TRANSISTOR DIAGRAMS..........................21 SCHEMATICS ...........................................................................22 PACKAGE ....................................... .........................................26

Infinity Alpha 1200s Basic Specifications
Frequency Response Maximum Amplifier Output Crossover Frequencies Driver Dimensions (H x W x D) 28Hz ­ 150Hz (±3dB) 500 watts RMS (20Hz ­ 150Hz with no more than 0.1% THD) 50Hz ­ 150Hz, 24dB/octave, continuously variable 12" (305mm) C.M.M.D. 17-1/2" x 17-1/4" x 18-1/4" (445mm x 438mm x 464mm) 45 lb (20.5kg) Bass Optimization Test & Measurement Kit Infinity Part Number: 335852-002

Weight Optional Accessory

Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details in this and related Infinity publications are therefore subject to change without notice.

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Alpha 1200s
Alpha 1200s
LINE VOLTAGE US 120vac/60Hz EU 230vac/50-60Hz Parameter Amp Section Type (Class AB, D, other) Load Impedance (speaker) Rated Output Power THD @ Rated Power THD @ 1 Watt DC Offset Damping factor D 6 275 0.1 0.1 10 >50 n/a Ohms Watts % % mV-DC DF n/a n/a 220 1 0.2 60 23 Nominal 1 input driven 22k filter 22k filter @ Speaker Outputs Measured at amplifier board Measured at the speaker cable. 200 Watts, measured at speaker output terminals located at the amp board. Limiter prevents continuous power to exceed 240 Watts. Bridge type amplifier, None of the speaker terminals must be connected to system GND at any time.

Powered Sub/ Plate Amp
Yes/No Yes Yes Specification Hi/Lo Line 108-132 207-264 Unit Nom. 120 230 QA Test Limits Unit Vrms Vrms Conditions Notes Normal Operation Normal operation, MOMS required Notes

Input Sensitivity Input Frequency L&R LP Off Mode selected Speaker/Hi Level Input Signal to Noise SNR-A-Weighted SNR-unweighted SNR rel. 1W-unweighted Residual Noise Floor Residual Noise Floor

30 446 446 6.225

Hz mVrms mVrms Vrms

30 ±2dB ±2dB ±2dB

Nominal Freq. To 200 Watts To 200 Watts To 200 Watts

Single input driven, Ap Zo=600 Ohms, LP ON Single input driven , Ap Zo=600 Ohms, LP OFF Single input driven, Ap Zo=600 Ohms, LP ON

100 90 55 0.5

dBA dBr dBr mVrms

85 85 50 1 1

0.5 mVrms(max)

relative to rated power A-Weighting filter relative to rated power 22k filter relative to 1W Output 22k filter Volume @max, using RMS reading DMM/VOM (or A/P) Volume @max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics)

Input Impedance Line Input (L, R,LFE) Speaker/Hi Level Input Filters LP 4th order variable Subsonic filter (HPF) 3rd Orde Low pass filter OFF BOS Frequency Control Range Level Control Range Width(Q) Control Range Limiter THD at Max. Output Power Features Auto - On -Off Phase switch Volume pot Taper (lin/log) Variable crossover 50-150 Hz HP Speaker out LP On- Off Select switch Input Configuration Line In (L,R) & LFE Spkr/Hi Level In Signal Sensing (ATO) Auto-Turn-On (yes/no) ATO Input test frequency ATO Level LFE Input ATO Level Speaker in

10K 10K

ohms ohms

Nominal Nominal

50-150 Hz Fixed Hz Fixed Hz

± 10 ± 10 ± 10

L or R input driven, LP Filter OFF

-20-80 Hz --14.1 to 0 dB -4.5% to 49.5% octave functional 21 detent pot (0.1 oct. steps) -functional 21 detent pot (0.5dB steps) -functional 21 detent pot (5steps/0.1 octave)

YES -YES 0-180 LOG YES YES YES -deg --

functional Maximum Output Power

--

functional functional functional functional functional functional

No switch provided, Refer to ATO section A Taper 4th Order LP Variable crossover Pass Through from the speaker input section Disables LP filter, intended for LFE

YES

--

functional

Dual RCA jack

YES

--

functional

Binding post connector L&R

YES 50 2 50

Hz mV mV

functional Auto - on selection switch in Auto functional " functional " functional "

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Alpha 1200s
Parameter ATO Turn-on time Auto Mute/ Turn-OFF Time Power on Delay time Transients/Pops ATO Transient Turn-on Transient Turn-off Transient Efficiency Efficiency Stand-by Input Power Power Cons. @ rated power Protection Short Circuit Protection YES functional Direct short at output Amplifier should resume operation after short circuit condition removal Temperature rise in accessible metal parts should not exceed 35K rise for domestic version or 30K rise for European versions (refer to requirements sheet). Unit is protected for over-temperature conditions Relay or crowbar (for driver/fire protection), Specification 2 15 3 Unit seconds minutes sec. QA Test Limits Conditions Notes Amp connected and AC on, then functional input signal applied (T) Time before muting, after input 17 Auto turn of time (T) must be 10 > T < 17 Minutes signal is removed 4 AC Power Applied

5 50 50

mV-peak mV-peak mV-peak

n/a 2v-pp 2v-pp

@ Speaker Outputs @ Speaker Outputs @ Speaker Outputs

AC Line cycled from OFF to ON AC Line cycled from ON to OFF

70 12 340

% Watts Watts

65 15 375

Rated power @ nom. line voltage @ nom. line voltage

Nominal Line voltage 120 VAC Maximum allowable input power under nominal Input voltage and frequency, in stand-by mode (HOT or COLD operation). 230 Watts @ 6.0 Ohms nominal line voltage

Thermal Protection

YES

functional @1/8 max unclipped Power

DC Offset Protection Line Fuse Rating USA-Domestic EU

YES 4 2 Amps Amps

-

DC present at Speaker Out leads Type-T or Slo Blo-250 V Type-T or Slo Blo-250 V

Internal fuse with UL/SEMKO rated holder

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Alpha 1200s
CONTROLS
Rear Panel

BASS OPTIMIZATION SYSTEM

20 80 FREQUENCY 180 PHASE 0 LP OFF LP ON

-14.1 0 LEVEL ON OFF POWER

4.5 49.5 WIDTH

GREEN: ON RED: STANDBY

50 150 CROSSOVER

MIN

MAX GAIN
®

µ
R L

LINE LEVEL IN

Alpha 1200s
CAUTION R
RISK OF ELECTRIC SHOCK DO NOT OPEN

¸
L

HIGH LEVEL IN

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. AVERTISSEMENT: POUR PRÉVENIR LES RISQUES D'INCENDIE OU
DE CHOC ÉLECTRIQUE, ÉVITER D'EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDITÉ.

POWER ON OFF

R

¹
L

HIGH LEVEL OUT

NRTL/C CSA 22.2 UL1492

Infinity Systems, Inc. Northridge, CA USA
AC 120V ~ 60HZ 500W

_

+

Bass Optimization Controls (see page 5) Bass Optimization System Selector Center-Frequency Adjustment Bass Optimization System Level Adjustment Bass Optimization System Bandwidth Adjustment

Phase Switch Low-Pass Filter Selector Power Indicator Crossover Adjustment Subwoofer Gain (Volume) Control µ Line-Level Inputs ¸ High-Level (Speaker) Inputs ¹ High-Level (Speaker) Outputs Power Switch

4

INFINITY ALPHA 1200S

Alpha 1200s
CONNECTIONS
If your receiver/amplifier does not have subwoofer outputs for the left and right channels or an LFE output:
RECEIVER/AMPLIFIER Front Speaker Output
BASS OPTIMIZATION SYSTEM

If your receiver/processor has subwoofer outputs for the left and right channels:
RECEIVER/PROCESSOR

20 80 FREQUENCY 180 PHASE 0

-14.1 0 LEVEL ON OFF POWER

4.5 49.5 WIDTH

GREEN: ON RED: STANDBY

50 150 CROSSOVER

MIN

MAX GAIN

¨
LINE LEVEL IN

BASS OPTIMIZATION SYSTEM

R

L R

Alpha 1200s
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN

20 80 FREQUENCY 180 PHASE 0

-14.1 0 LEVEL ON OFF POWER

4.5 49.5 WIDTH L GREEN: ON RED: STANDBY R

HIGH LEVEL IN

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. AVERTISSEMENT: POUR PRVENIR LES RISQUES D'INCENDIE OU DE CHOC LECTRIQUE, VITER D'EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDIT.

POWER ON OFF

HIGH LEVEL OUT 50 150 CROSSOVER MIN MAX GAIN L

NRTL/C CSA 22.2 UL1492

Infinity Systems, Inc. Northridge, CA USA
AC 120V ~ 60HZ 500W

¨
LINE LEVEL IN R L R HIGH LEVEL IN L

_

Alpha 1200s
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN

+

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. AVERTISSEMENT: POUR PRVENIR LES RISQUES D'INCENDIE OU DE CHOC LECTRIQUE, VITER D'EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDIT.

POWER ON OFF

· Set Low-Pass Filter to "On. " NOTE: Some receivers have a single subwoofer output (do not confuse this with a single LFE output as described below). In that case, it is recommended that you use a Y connector (not included) to maximize performance.

R HIGH LEVEL OUT L
NRTL/C CSA 22.2 UL1492

Infinity Systems, Inc. Northridge, CA USA
AC 120V ~ 60HZ 500W

_

+

If you have a Dolby* Digital or DTS® receiver/processor with a low-frequency-effects (LFE) output:
· Set Low-Pass Filter to "On. "

SUBWOOFER OR LFE OUTPUT

RED =

+
BASS OPTIMIZATION SYSTEM

BLACK = 1. LOOSEN TERMINALS

­
20 80 FREQUENCY 180 PHASE 0 OFF POWER -14.1 0 LEVEL ON GREEN: ON RED: STANDBY 4.5 49.5 WIDTH

2. INSERT BARE END; TIGHTEN TERMINALS

50 150 CROSSOVER

MIN

MAX GAIN
¤

LINE LEVEL IN R L

Alpha 1200s
CAUTION R HIGH LEVEL IN L
RISK OF ELECTRIC SHOCK DO NOT OPEN

STRIPE =

­

NO STRIPE =

+

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

POWER ON OFF

AVERTISSEMENT: POUR PR VENIR LES RISQUES D'INCENDIE OU
DE CHOC LECTRIQUE, VITER D'EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDIT .

R HIGH LEVEL OUT L
NRTL/C CSA 22.2 UL1492

Infinity Systems, Inc. Northridge, CA USA
AC 120V ~ 60HZ 500W

_

+

· Set Low-Pass Filter to "Off" . NOTE: In this case, you do not need to use a Y connector. Simply connect the LFE output on your receiver/processor to either the left or right input on the subwoofer.

INFINITY ALPHA 1200S

5

Alpha 1200s
OPERATION
Power On
Plug your subwoofer's AC cord into a wall outlet. Do not use the outlets on the back of the receiver. Initially set the Subwoofer Gain (Volume) Control "min" position. Turn on your sub by pressing the Power Switch panel. to the on the rear

Crossover Adjustments
The Crossover Adjustment Control determines the highest frequency at which the subwoofer reproduces sounds. If your main speakers can comfortably reproduce some low-frequency sounds, set this control to a lower frequency setting, between 50Hz ­ 100Hz.This will concentrate the subwoofer's efforts on the ultradeep bass sounds required by today's films and music. If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies, set the Crossover Adjustment Control to a higher setting, between 120Hz ­ 150Hz. Note: This control will have no effect if the Low-Pass Filter is set to "Off." If you have a Dolby Digital or Selector Switch DTS processor/receiver, the Crossover Frequency is set by the processor/receiver. Consult your owner's manual to learn how to view or change this setting.

Auto On/Standby
With the Power Switch in the ON position, the Power will remain backlit in red or green to Indicator LED indicate the On/Standby mode of the subwoofer. RED = STANDBY (No signal detected, Amp Off) GREEN = ON (Signal detected, Amp On) The subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system.The subwoofer will then power ON instantly when a signal is detected. During periods of normal use, the Power Switch can be left on.You may turn off the Power Switch for extended periods of nonoperation, e.g., when you are away on vacation.

Phase Control
The Phase Switch determines whether the subwoofer speaker's piston-like action moves in and out with the main speakers, 0°, or opposite the main speakers, 180°. Proper phase adjustment depends on several variables such as room size, subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position.

Adjust Gain
Turn on your entire audio system and start a CD or movie soundtrack at a moderate level.Turn up the Subwoofer Gain about half way. If no sound emanates from (Volume) Control the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact? Is the AC plug connected to a "live" receptacle? Has the Power Switch been pressed to the "On" position? Once you have confirmed that the subwoofer is active, proceed by playing a CD, record or cassette. Use a selection that has ample bass information. Set the overall volume control of the preamplifier or stereo to a comfortable level. Adjust the Subwoofer Gain (Volume) Control until you obtain a pleasing blend of bass. Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range. Many users have a tendency to set the subwoofer volume too loud, adhering to the belief that a subwoofer is there to produce lots of bass.This is not entirely true. A subwoofer is there to enhance bass, extending the response of the entire system so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An experienced listener will set the volume of the subwoofer so its impact on bass response is always there but never obtrusive.

6

INFINITY ALPHA 1200S

Alpha 1200s
BASS OPTIMIZATION SYSTEMTM
Infinity's Bass Optimization System is a simple-to-use, yet sophisticated, low-frequency calibration system. Each Interlude subwoofer contains a parametric equalizer that you can adjust following the directions below. By following these instructions, you can improve the sound of your system. To solve a problem, it helps to first identify whether you have one and, if so, what it is. First, play a variety of music and films with energetic bass sounds, like bass guitar, kick drum, keyboards, etc. A kick drum should produce a tight "thump" not a flabby , "boom. Bass melody or harmony lines should have notes that are " about equally loud. If some notes disappear, or stand out because they are consistently too loud, there is a problem. Disappearing notes have to be handled by moving the listening position, or the loudspeakers, to slightly different locations. Often, but sadly not always, this will be enough. Excesses in bass tend to be most annoying, and energetic resonances that cause "boomy" or "lumpy" bass can be truly aggravating over a period of time. Infinity's Bass Optimization System can fix this. So, the first step is to exercise your music collection, and listen for low-frequency problems that crop up in several different recordings. Something that only happens in one recording is likely to be a problem in the recording ­ it happens! If you identify something that is consistently wrong, select a record that shows it very clearly, and put your CD/DVD player into a repeat mode (A-B repeat is especially helpful, because you can isolate a short musical passage). Set the Bass Optimization System Bandwidth Adjustment Control to a middle position (10 clicks from a fully clockwise position) and set the Level adjustment for a ­6dB (8 clicks from a fully clockwise position).Then, while the music is playing, sit in your favorite chair and have somebody else slowly adjust from fully clockwise to fully the Center-Frequency control counter-clockwise. At a certain frequency, you should hear the problem lessen and the overall bass performance improve. When you are satisfied that you have found the best frequency, have slowly up and down until you your assistant vary the Level have maximized the improvement. If you have really keen ears, you can also have the Bandwidth Adjustment control adjusted for maximum benefit. While the Bass Optimization System allows the listener to finetune the bass response to sound best in a particular room, some listeners don't have the skill or desire to adjust their system by ear. In order to facilitate quicker and more accurate results, Infinity has developed an optional test and measurement kit that allows the user to perform a series of measurements and aids him/her in properly setting the Bass Optimization System controls. With the addition of this kit, the Bass Optimization System becomes truly room-adaptive.The kit consists of the following: a test CD, a sound-level meter that is specifically calibrated for low frequencies, and something we call a "Q-Finder," a device to help find the width of the measured curve and, finally, a measurement template. It works as follows.The listener plays the tones from the test CD and records the relative output level of each test tone, using the sound-level meter, on the provided measurement template. After all the tones are complete, the template contains a response curve for the frequencies below 100Hz.The user simply notes the frequency of the largest bass peak, calculates the correct amount of attenuation, and uses the "Q-Finder"to determine the width of the curve.These three values are dialed into the Bass Optimization System controls located on the speaker.The entire process takes less than twenty minutes. If your dealer does not stock the Bass Optimization System test and measurement kit, you may purchase it directly from Infinity. U.S. residents can visit our Web site at www.infinitysystems.com or call 1.800.553.3332. Canadian residents should contact their dealer or call 1.800.567.3275.

The Bass Optimization System Goal
It is a fact of audio that what we hear at low frequencies is determined as much or more by the listening room than by the loudspeaker itself. Placement of the loudspeakers and listeners and the acoustical characteristics of the room surfaces are all important determinants of bass quantity and quality. In most practical situations, there is little that can be done about this, except for patient trial-and-error repositioning of the loudspeakers and listeners. Usually, the practical constraints of a living space and the impracticality of massive acoustical treatment mean that equalization is the only practical solution. Professional sound engineers routinely employ sophisticated measurement systems and equalizers to optimize speakers to the installation.This was never practical for the home audiophile. This is why the Bass Optimization System was created. It enables you to identify the dominant low-frequency response characteristic of your room. Once you know the problem, the Bass Optimization System provides the tools needed to optimize the low-frequency characteristics of the speakers to the room they are in, exactly as the professional sound engineers do it.

Preparations
Before beginning the bass tests, please check the following: · Make sure all three Bass Optimization System controls on the subwoofer are turned fully clockwise. · Make sure the loudness contour (if any) on your receiver/ processor/preamp is turned off. · Set the receiver's/processor's tone controls (Bass and Treble) to their center or flat positions. · Bypass all surround and effects features of your receiver/ processor/preamp or set to Stereo Bypass. · If you are using a multichannel surround processor or receiver, make sure all bass-management features are properly set.The Audio channels should all be set to "Small" or "HighPass" and the subwoofer set to "On." · Set the Bass Optimization System Selector to "On." For best results, it is recommended that all major furnishings are in place and that all doors and windows in the listening area are in their normal positions.That is, if you normally listen to music with all doors closed, then this is how they should be during this procedure.

INFINITY ALPHA 1200S

7

Alpha 1200s

8

Alpha 1200s

Service Bulletin
Service Bulletin INF2004-01 ­ March 2004 To: All Infinity Service Centers This is considered a Minor repair

Model: Alpha 1200s Subject: Distortion When Coming Out Of Standby In the event you receive an Alpha 1200s subwoofer with the complaint "There is a brief chirping sound, or short oscillation that occurs when the unit is in the AUTO mode, in Standby, when it's triggered ON with a music signal", follow the procedure below to correct this condition: Synopsis: Replace D60 (RLS4148 diode) with a 3.6V Zener Diode; add new Resistor. 1) Remove the amplifier assembly from the subwoofer cabinet (12 Phillips screws). 2) Remove the Plastic Amp Cover from the faceplate (4 Phillips screws). 3) The area of concern is on the Class D Driver PCB (Small Upright PCB on the MAIN AMP PCB). A long, thin, soldering iron tip is recommended. Care must be taken not to damage surrounding components, like large inductor pair L8. 4) Locate, remove D60 (RLS4148 diode); replace with a 3.6V zener diode, Infinity Part# ZMM5227BCT-ND. When replacing D60 the polarity of the new (zener) diode should be reversed. 5) Add new 27K resistor, Infinity Part# 299-27K, to the indicated connections. (This component, electrically, will be in parallel with R37, reducing its value to <22K). Assure the leads do not come into contact with any other connections; insulate the leads if necessary. 6) Replace amp cover and return amplifer assembly to cabinet. 7) Test the subwoofer to assure the distortion is no longer present.

9

Alpha 1200s
EXPLODED VIEW
Alpha 1200s Amplifier - Not For Sale

4

Alpha 1200s Cabinet - Not For Sale

7

(12)

3

(4)

1 5 7 2
(6)

6

(4)

ITEM NO. DESCRIPTION TM 1. Woofer, 12, C.M.M.D., Shielded, " 3.4 ohms ±10% 2. Front Grille 3. Grille Retainer 4. Port Tube 5. Trim Ring 6. Rubber Foot Ass'y

QTY. PART NO. 1 336056-001 1 4 1 1 4 339945-001 9330070 336799-001 339944-001 338037-001

ITEM NO. DESCRIPTION 7. Screw Torx HD, 3.9 x 30mm (12 Amp Assembly and 6 Woofer) 8. Spike Foot Kit 9. Outer Carton 10. Top and Bottom End Pads 11. Owner's Manual 12. Warranty Card

QTY. 18 1 1 2 1 1

PART NO. 9412730 338076-001 350613-001 350615-001 350614-001 335841-002

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Alpha 1200s

Alpha 1200s

11

Alpha 1200s

12

Alpha 1200s

13

Alpha 1200s

14

Alpha 1200s

15

Alpha 1200s Alpha 1200s Electrical Parts List
Part Number AMP ASS'Y Resistors 021-100401-020 021-560305-020 022-005105-020 022-470307-020 024-000098-120 024-100498-120 024-100598-120 024-100698-120 024-150498-120 024-160598-100 024-220498-121 024-220598-120 024-330498-120 024-330598-120 024-470298-120 024-470398-120 024-470598-120 024-510498-120 024-910498-120 025-010300-000 Capacitors 031-100184-100 031-100244-100 031-100344-100 031-100384-100R 031-470144-101 032-100484-200 033-330444-270 033-680464-270 034-100614-300 034-100625-300 034-100695-300 034-100895-204 034-220525-300 034-330625-300 034-470415-300 Semiconductors 051-000600-100 051-005600-100 051-290700-100 051-540101-000 051-640001-000 052-400080-000 053-257400-100 054-000100-100 054-001002-100 054-001501-100 NPN Transistor PNP Transistor PNP Transistor PNP Transistor MOSFET N-Channel Bridge Regulator IC;DIP,Regulator SMD DIODE SMD ZENER DIODE SMD ZENER DIODE PN:MPSW06RLRA TO-92 (ON) PN:MPSW56RLRA TO-92 (ON) PN:P2N2907A TO-92 (ON) PN:2N5401 TO-92 PN:IRF640N TO-220 (IR) PN:RS804 400V,8A PN:LM2574 HVN-15V 8PIN (NS) PN:ES1D 200V 1A PN:BZX84C10 10V SOT-23 PN:BZX84C15 15V SOT-23 Q6 Q8 Q12,14,16,18 Q3 Q11,13,15,17 BR1 U6 D1,23,37,40,44,47 D32 D2,3 SMD Capacitor SMD Ceramic Cap. SMD Capacitor SMD Capacitor SMD Capacitor END Mylar Cap. NPE Capacitor NPE Capacitor Electrolytic Cap. Electrolytic Cap., Electrolytic Cap. Electrolytic Cap. Electrolytic Cap., Electrolytic Cap., Electrolytic Cap, 0u01/250V K 0805 X7R 0u01/50V K 0805 X7R 0u1/50V K 0805 X7R 0u1/250V K 1206 X7R 0u0047/50V K 0805 X7R 1uF/250V K P:15mm 3u3/50V K10 (R)8x13 SBE 6u8/100V K10 (R)1020 GNE 100uF/16V M (R)0611 P:2.5 100uF/25V M (R)6.3x11 P:5 100uF/63V M (R)1012 P:5 10000uF/63V M R30x51 85deg 22uF/25V M (R) 5x11 P:2.5 330uF/25V M (R)1013 P:5 4u7/50V M (R)0511 P:2.0 C104,119 C27,28 C10,69,112,115,135,138 C5,6 C1G1 C37,39,30 C114,137 C113,136 C8 C62 C142 C1,4 C25,26 C11,100 C7 MOF Resistor MOF Resistor Cement Resistor KNP Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor Thermister 1K 1W J FK TYPE 560R 5WS J 8x25 KINK PN:SQM 0R05 5W J 25x13 470R 7W J (KNP-700S) 0R 1/8W J 0805 1K 1/8W J 0805 10K 1/8W J 0805 100K 1/8W J 0805 1K5 1/8W J 0805 16K 1/8W F 0805 2K2 1/8W J 0805 22K 1/8W J 0805 3K3 1/8W J 0805 33K 1/8W J 0805 47R 1/8W J 0805 470R 1/8W J 0805 47K 1/8W J 0805 5K1 1/8W J 0805 9K1 1/8W J 0805 TSE-103 K L:50mm R173 R76 R2 R78 R8 R110,169 R5,7,16,118,121,122,125,126 R15,120 R119 R13,13B R17 R127 R77,79 R4,6,14,60,60B R24-27 R145,155,177,186 R3,171 R48A,48B,48C,48D,48E R63 TH1 Description Reference Designator

16

Alpha 1200s
Part Number 054-033904-100 054-033906-100 054-050601-100 054-414803-100 054-540100-100 054-555100-100 Miscellaneous 043-300101-000 043-560200-000 043-700100-000 043-820300-000 044-100100-000 072-040039-000 072-040064-000 072-040096-000 072-040250-000 073-111003-000 073-111004-000 074-300018-000 INPUT PCB ASS'Y Resistors 021-226598-100 021-576498-100 024-000097-120 024-100398-121 024-100498-121 024-100598-101 024-100598-121 024-100698-101 024-150498-121 024-150598-121 024-200598-121 024-226598-100 024-270498-121 024-300398-121 024-300598-121 024-330498-101 024-330498-121 024-470498-121 024-470698-121 024-470798-121 024-510398-121 024-560598-121 024-620398-121 024-680598-121 024-750798-121 024-820598-121 026-500595-254 026-500595-267 MF Resistor MF Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor VR 50KA VR 50KBx4 22K6 1/8W F 5K76 1/8W F 0R 1/4W J 1206 100R 1/8W J 1206 1K 1/8W J 1206 10K 1/8W F 1206 10K 1/8W J 1206 100K 1/8W F 1206 1K5 1/8W J 1206 15K 1/8W J 1206 20K 1/8W J 1206 22K6 1/8W F 1206 2K7 1/8W J 1206 300R 1/8W J 1206 30K 1/8W J 1206 3K3 1/8W F 1206 3K3 1/8W J 1206 4K7 1/8W J 1206 470K 1/8W J 1206 4.7M 1/8W J 1206 510R 1/8W J 1206 56K 1/8W J 1206 620R 1/8W J 1206 68K 1/8W J 1206 7M5 1/8W J 1206 82K 1/8W J 1206 P/N:RK163111R405-EJ PN:RD1631411001D-50KBx4 (EJ) R214 R204 R301,302,303,309 R249 R238,264 R200B,201B,218B,219B R202,205-207,212,217 R200,201,218,219 R251 R223 R256 R208,209,231,232 R237 R258 R260 R203,215 R240,247 R210 R259 R243,244 R261 R224 R221,226 R250 R241 R263 R216 R233 INDUCTOR INDUCTOR INDUCTOR INDUCTOR SMD FERRITE BEAD Terminal PCB type Terminal PCB type Terminal T187MA(PCB TYPE) CONNECTOR Shorting Strap Shorting Strap RELAY (3 PCB's) 30uH YT-10033 56uH YT-10779 70uHx2 YT-10024 820uH YT-10034 PN:321611 600R/100MHz 1206 PC205 (t=0.8m/m) T205MA PC250(t=0.8),T250MA (t=0.8mm) PC187(0.8) 7 PIN JS-1001-7 P:2.5mm 54.9x13.6x1m/m 29.5x12.4x0.8m/m PN:943-1C-48D L9,10 L12 L8 L1 FB1,FB2 T1 T2,TER6 TER5,TER7 P1 J7 J4,9 RLY1 Description SMD Transistor SMD Transistor SMD ZENER DIODE SMD DIODE SMD Transistor SMD Transistor PN:MMBT3904LT1 SOT23 (ON PN:MMBT3906LT1 SOT23 (ON PN:BZX84C5V6 5.6V SOT-23 C36 PN:LL4148 (Wishay) PN:MMBT5401 LT1 SOT-23 PN:MMBT5551 LT1 (ON) Reference Designator Q25,28,29 Q26,27,30 D30 D4-6,13,14,21,22,31,33,38 Q1 Q2

17

Alpha 1200s
Part Number Capacitors 031-100244-101 031-100344-102L 031-100344-104 031-220244-103L 031-220344-103 031-470444-101 031-680444-100 034-100515-300G 034-100615-301 034-220516-301 034-220525-300 035-330293-300 035-560393-300 035-680253-300 035-680353-300 Semiconductors 050-505200-001 054-007200-100 054-033904-100 054-050601-100 054-211400-100 054-414803-100 Miscellaneous 072-010058-000 072-040039-000 072-040250-000 072-040253-000 072-040337-000 072-040338-000 072-060219-000 073-010021-000 074-030002-000 RABOS PCB ASS'Y Resistors 021-100398-100 021-100498-100 021-100598-100 021-100798-100 021-100898-100 021-110698-100 021-121598-100 021-140598-100 021-150198-100 021-162398-100 021-267498-100 021-340398-100 021-357498-100 MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor 100R 1/8W F 1K 1/8W F 10K 1/8W F 1M 1/8W F 10M 1/8W F 110K 1/8W F 12K1 1/8W F 14K 1/8W F 1K5 1/8W F 162R 1/8W F 2K67 1/8W F 340R 1/8W F 3K57 1/8W F R339 R363,381 R338,342,343,346,348,353 R356 R362 R347 R354,369 R380 R341 R384 R336 R357,371 R335 RCA JACK 2P Terminal (PCB TYPE) CONNECTOR HEADER Right Angle HEADER Right Angle HEADER Right Angle BINDING POST (gold plated) Screw holder Toggle Switch PN:0502000W1G (Red,White) PC205 (t=0.8m/m) T205MA 7 PIN JS-1001-7 P:2.5mm PN:211-103-000-400 3PIN PN:211-110-000-400 10PIN PN:211-105-000-400 5PIN PN:A807A-RB 8PIN 1/2K red+blk PN:PCB-2(M3) 4PIN P/N L101 J201 C211 P2,3 M3 M4 M3 J200 T1,2,3 SW200-202 LED SMD IC SMD Transistor SMD ZENER DIODE SMD Transistor (NPN) SMD DIODE PN:LT-2402-21 LED1 PN:TL072CDR SO-8 (TI) U200-205 PN:MMBT3904LT1 SOT23 (ON Q203,204 PN:BZX84C5V6 5.6V SOT-23 TAPI D210 PN:DTC114EK SMT3 (ROHM) Q202 D200-205,207,209,212,216, PN:LL4148 (Wishay) 217,218 SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor Electrolytic Cap., Electrolytic Cap., Electrolytic Cap. Electrolytic Cap., ESK Cap. PE Cap. PE Cap.FE-M ESK Cap. 0u01/50V K 1206 X7R 0u1/50V K 1206 X7R 100pF/50V K NPO 1206 0u022/50V K 1206 X7R 220pF/50V K NPO 1206 4700pF/50V K X7R 1206 6800pF/50V K X7R 1206 10uF/16V M (R)0511 P:2 100uF/16V M (R)0611 P:5 22uF/16V M (R)0511 P:2 22uF/25V M (R) 5x11 P:2.5 0u033/63V J P:5 0u56/63V J P:5 0u068/63V J P:5m/m 0u68/63V J P:5 PN:ESK063P68JA C12,13,224 C227,229,230,232-235 C204,222 C202 C200,210,215,216 C2G1 C212 C220 C221 C223,225 C14,15 C209,218 C207,208 C201,213 C214 Description Reference Designator

18

Alpha 1200s
Part Number 021-549398-100 021-590498-100 021-619498-100 021-680398-100 021-698598-100 021-787398-100 021-909398-100 021-931498-100 026-100595-346 026-100595-347 Capacitors 031-100345-300 034-220525-300 035-100293-300 035-100363-300 035-680253-300 038-150393-300 Semiconductors 054-007200-100 054-007400-100 072-040250-000 FUSE PCB ASS'Y 039-220180-100 043-324300-000 072-040064-000 072-040096-000 073-050001-000 091-000128-000 X2 Safety Cap. 0u22/250V INDUCTOR Terminal (PCB TYPE) Terminal T187MA(PCB TYPE) FUSE CLIP FUSE 18x16.5x8.5mm PN:XG275M224VHCXAC1 324uH YT-10778 L13 PC250(t=0.8),T250MA TER2 (t=0.8mm) PC187(0.8) TER1,3,4 P/N:CFFH1206 F1,B1 T4A/250V 5x20m/m SMD IC SMD IC;(OP) CONNECTOR PN:TL072CDR SO-8 (TI) PN:TL074CDR (TI) 7 PIN JS-1001-7 P:2.5mm U301 U300 P4 SMD Capacitor Electrolytic Cap., ESK Mylar Cap. PE Cap. PE Cap. FE-M MPE Cap. P:5 0u1/50V M 1206 X7R 22uF/25V M (R) 5x11 P:2.5 0u01/63V J P:5 0u1/100V J P:5m/m 0u068/63V J P:5m/m 0u15/63V J C305,306 C303,304 in parallel with C328 C322,323,328 C381 C380 Description MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor MF Resistor VR 10KAx2 (Level,Width) VR 10KCx2 (Frequency) 549R 1/8W F 5K9 1/8W F 6K19 1/8W F 680R 1/8W F 69K8 1/8W F 787R 1/8W F 909R 1/8W F 9K31 1/8W F PN:RV16A01-20-15K-A14-3E53 PN:RV16A01-20-15K-C14-3E53 Reference Designator R344 R382 R359,374 R360 R383 R350,364 R385 R351 VR302,303 VR301

PRE DRIVER AMP PCB Resistors 024-000098-120 024-100298-120 024-100498-120 024-100598-120 024-100698-120 024-100798-120 024-110598-120 024-200598-120 024-220398-120 024-220498-121 024-220798-120 024-270498-120 024-390498-120 024-390598-120 024-470398-120 024-470498-120 024-470598-120 SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor SMD Resistor 0R 1/8W J 0805 10R 1/8W J 0805 1K 1/8W J 0805 10K 1/8W J 0805 100K 1/8W J 0805 1M 1/8W J 0805 11K 1/8W J 0805 20K 1/8W J 0805 220R 1/8W J 0805 2K2 1/8W J 0805 2M2 1/8W J 0805 2K7 1/8W J 0805 3K9 1/8W J 0805 39K 1/8W J 0805 470R 1/8W J 0805 4K7 1/8W J 0805 47K 1/8W J 0805 R313,314,318,320 R89,90,140,150 R81,85,96,97,131,137,142 R75,82,83,92,98,132,133 R37 R32,33 R74,99 R95,141 R136,167 R134 R87,93 R80,84,157 R130,161 R86,94 R91 R151-153,183,34,36 R35

19

Alpha 1200s
Part Number 024-560598-120 024-680498-120 Capacitors 031-100244-100 031-100343-100 031-100344-100 031-180344-100 031-470244-102 031-560243-100 031-560343-102 034-100625-303 034-100715-202 034-330615-301 Semiconductors 051-000600-100 051-222200-100 051-555100-000 053-211100-000 054-000100-100 054-001002-100 054-007200-100 054-033906-100 054-050601-100 054-414803-100 054-540100-100 054-555100-100 Miscellaneous 072-040229-000 072-040230-000 008-060302-032 008-061215-000 008-062001-000 008-063001-000 042-014107-001 061-001052-000 061-100016-000 061-314002-000 061-700035-000 061-700044-000 063-010010-000 063-332101-000 063-332103-000 065-040102-090 073-014044-000 074-020018-000 086-021836-000 181-911622-148 181-911800-338 181-921600-000 181-921699-000 HEADER Right Angle HEADER Right Angle GASKET (S12P) CR GASKET C4305 GASKET CR C4305 GASKET CR C4305 Transformer 120V/60Hz Knob Partition post Strain Relief Thermal Isolator Mica Bracket for Transistor Amp Cover PANEL(ALPHA SUB 1200) UL PVC sleeve 300V 105deg Bracket black ROCKER SW (POWER) Power Cord Wire #16AWG UL1007 Wire #18AWG UL1007 BLK Wire #16 UL1015 WHT Wire #16 UL1015 PN:211-107-000-400 7PIN PN:211-111-000-400 11PIN 28x20mm t=5mm C4305 12x15 t=5mm CR 196x10mm t=1mm 320x10mm t=1mm EI-125 YT-9313-2 PN:49001-W (18)D=15.1 H=14.5 PN:BCMS-8 L=8mm NY 66(UL) P/N SB4F-2 PN:TO-220AWO 13x18mm TO-220 P/N:TRK-2 12.83"x8.33"x3.93" ABS 94V0 12.83x8.33" t=0.984"SPCC 1mm blk 6.64"x3.50"x3.20" SPCC cadium PN:RF1003-BB4-0 SPT-2 #18 12'+T187 red L=720 T250 terminal + sleeve blk L=110mm+7mm T187 transparent sleeve L:140mm T187 transparent sleeve L:160mm PIN2 PIN1 X'FORMER Thermister COVER(front)x2,COVER(Rear)x2 COVER(Front)x2,COVER(Rear)x2 For R233,216,VR301-303 Power PCB PANEL,COVER For Q11,15 For Q13,17 For Q11,13,15,17,TH1 NPN Transistor NPN Transistor (ON SEM) NPN Transistor IC;DIP,DRIVER SMD DIODE SMD ZENER DIODE SMD IC SMD Transistor SMD ZENER DIODE SMD DIODE SMD Transistor SMD Transistor (NPN) PN:MPSW06RLRA TO-92 (ON) Q31 PN:MPS2222ARLRA TO-92 Q20,22 PN:2N5551 TO-92 Q21,23 PN:IR2111 8PIN (IR) U7,8 PN:ES1D 200V 1A D35,43 PN:BZX84C10 10V SOT-23 D42,49 PN:TL072CDR SO-8 (TI) U9,10 PN:MMBT3906LT1 SOT23 (ON Q34,35 PN:BZX84C5V6 5.6V SOT-23 TAPI Z7,8 PN:LL4148 (Wishay) D36,39,46,52,60,61 PN:MMBT5401 LT1 SOT-23 Q33,40 PN:MMBT5551 LT1 (ON) Q32 SMD Ceramic Cap. SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor SMD Capacitor Electrolytic Cap. Electrolytic Cap. 85 deg Electrolytic cap. 0u01/50V K 0805 X7R 100pF/50V J 0805 NPO 0u1/50V K 0805 X7R 0u18/50V K 0805 X7R 0u047/50V K 0805 X7R 56pF/50V J 0805 NPO 560pF/50V J 0805 NPO 100uF/25V M (R) P:2.5 1000uF/16V M (R) 10x17 P:5 330uF/16V M (R)0812 P:3.5 C108,118,131,140 C81,84 C75-78,82,85 C80,83 C93,94,101,124 C92,102,105,125 C79 C117 C109,132 C32 Description SMD Resistor SMD Resistor 56K 1/8W J 0805 6.8K 1/8W J 0805 Reference Designator R38 R135,166

SPE+ C211

20

Alpha 1200s

21

Alpha 1200s

P1A P1B P1C P1D P1E P1F

NEW Design CHANGE:R119,R224,R254 CHANGE:R76,R244,R249,R254,C221 DEL:D218,R264 CHANGE:C224 CHANGE:R78,R119 CHANGE:R32,R33,R249,C323,C328 ADD:D218,R264

22

HARMAN 350089-001 ALPHA-SUB-1200 ALPHA-SUB-1200-P1F ALPHA-SUB-1200 2002/09/16 1 of 4 P1F BELLE

Alpha 1200s

P1A P1B P1C P1D P1E P1F

NEW Design CHANGE:R119,R224,R254 CHANGE:R76,R244,R249,R254,C221 DEL:D218,R264 CHANGE:C224 CHANGE:R78,R119 CHANGE:R32,R33,R249,C323,C328 ADD:D218,R264

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HARMAN 350089-001 ALPHA-SUB-1200 ALPHA-SUB-1200-P1F ALPHA-SUB-1200 2002/09/16 2 of 4 P1F BELLE

Alpha 1200s

P1A P1B P1C P1D P1E P1F

NEW Design CHANGE:R119,R224,R254 CHANGE:R76,R244,R249,R254,C221 DEL:D218,R264 CHANGE:C224 CHANGE:R78,R119 CHANGE:R32,R33,R249,C323,C328 ADD:D218,R264

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HARMAN 350089-001 ALPHA-SUB-1200 ALPHA-SUB-1200-P1F ALPHA-SUB-1200 2002/09/16 3 of 4 P1F BELLE

Alpha 1200s

P1A P1B P1C P1D P1E P1F

NEW Design CHANGE:R119,R224,R254 CHANGE:R76,R244,R249,R254,C221 DEL:D218,R264 CHANGE:C224 CHANGE:R78,R119 CHANGE:R32,R33,R249,C323,C328 ADD:D218,R264

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HARMAN 350089-001 ALPHA-SUB-1200 ALPHA-SUB-1200-P1F ALPHA-SUB-1200 2002/09/16 4 of 4 P1F BELLE

Alpha 1200s
PACKAGING
Legend on Page 9 11 12 8

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9

Item 8. 9 10. 11. 12.

Description Spike Foot Kit Outer Carton Top and Bottom End Pads Owner's Manual Warranty Card

Part number 338076-001 350613-001 350615-001 350614-001 335841-002

Qty. 1 1 2 1 1

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Alpha 1200s