Text preview for : 32GX01B.pdf part of Hitachi 32GX01B Hitachi SOLID STATE COLOR TELEVISION
Models:32GX01B, 36GX01B, 32UX01S, 36UX01S
Chassis:M10LXU
Service Manual
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PA
No. 0141
32UX01S 36UX01S
32GX01B 36GX01B
NTSC
M10LXU Chassis
R/C: CLU-381UG R/C: CLU-341UG
SAFETY PRECAUTIONS ......................................................................................................2 PRODUCT SAFETY NOTICE................................................................................................3 POWER SOURCE ................................................................................................................3 SERVICING PRECAUTIONS ................................................................................................4 TECHNICAL SPECIFICATIONS ............................................................................................8 TECHNICAL CAUTIONS ......................................................................................................9 CONTENTS OF ADJUSTMENTS ......................................................................................10 FRONT PANEL AND REMOTE CONTROL OPERATION ..................................................13 ADJUSTMENTS ..................................................................................................................21 TROUBLESHOOTING FLOWCHARTS ..............................................................................48 WAVEFORMS ....................................................................................................................57 REPLACEMENT PARTS LIST ............................................................................................60 WIRING DRAWING ............................................................................................................73 CHASSIS BLOCK DIAGRAM ..............................................................................................77 PRINTED CIRCUIT BOARDS ............................................................................................79 BASIC CIRCUIT DIAGRAM ................................................................................................83
CAUTION: Before servicing this chassis, it is important that the service technician read the "Product Safety Notices" in this service manual.
SAFETY NOTICE USE ISOLATION TRANSFORMER WHEN SERVICING
Components having special safety characteristics are identified by a ! on the parts list in this Service Data and its supplements and bulletins. Before servicing the chassis, it is important that the service technician read and follow the "Safety Precautions" and "Product Safety Notices" in this Service Manual.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT MAY 2000 HHEA-MANUFACTURING DIVISION
SAFETY PRECAUTIONS
NOTICE: Comply with all cautions and safety-related notes located on or inside the cabinet and on the chassis or picture tube. WARNING: Since the chassis of this receiver is connected to one side of the AC power supply during operation, whenever the receiver is plugged in, service should not be attempted by anyone unfamiliar with the precautions necessary when working on this type of receiver. The following precautions should be observed: 1. Do not install, remove, or handle the picture tube in any manner unless shatterproof goggles are worn. People not so equipped should be kept away from the picture tube while handling. 2. When service is required, an isolation transformer should be inserted between power line and the receiver before any service is performed on a "HOT" chassis receiver. 3. When replacing a chassis in the receiver, all the protective devices must be put back in place, such as barriers, nonmetallic knobs, adjustment and compartment cover-shields, isolation resistors, capacitors, etc. 4. When service is required, observe the original lead dress in the high voltage circuitry area. 5. Always use the manufacturer's replacement components. Critical components as indicated on the circuit diagram should not be replaced by another manufacturer's. Furthermore, where a short circuit has occurred, replace those components that indicate evidence of overheating. 6. Before returning a serviced receiver to the customer, the service technician must thoroughly test the unit to be certain that it is completely safe to operate without danger of electrical shock, and be sure that no protective device built into the receiver by the manufacturer has become defective, or inadvertently defeated during servicing. Therefore, the following checks should be performed for the continued protection of the customer and service technician. Leakage Current Cold Check With the AC plug removed from the 120V AC 60Hz source, place a jumper across the two plug prongs. Using an insulation tester (DC500V), connect one lead to the jumpered AC plug and touch the other lead to each exposed metal part (antennas, screwheads, metal overlays, control shafts, etc.), particularly any exposed metal part having a return path to the chassis should have a minimum resistor reading of 0.24M and a maximum resistor reading of 12M . Any resistance value below or above this range indicates an abnormality which requires corrective action. An exposed metal part having a return path to the chassis will indicate an open circuit.
LEAKAGE CURRENT TESTER
Leakage Current Hot Check Plug the AC line cord directly into a 120V AC 60Hz outlet (do not use an isolated transformer for this check). Turn the AC power ON. Using a Leakage Current Tester (Simpson's Model 229 or equivalent), measure for current from all exposed metal parts of the cabinet (antennas, screwheads, overlays, control shafts, etc.) particularly any exposed metal part having a return path to the chassis or to a known earth ground (water pipe, conduit, etc.). Any current measured must not exceed 0.5 milliamps.
DEVICE UNDER TEST TEST ALL EXPOSED METAL SURFACES 2-WIRE CORD ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)
(READING SHOULD NOT BE ABOVE 0.5mA)
EARTH GROUND
AC LEAKAGE TEST ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE RECEIVER TO THE CUSTOMER. High Voltage This receiver is provided with a hold down circuit for clearly indicating that voltage has increased in excess of a predetermined value. Comply with all notes described in this service manual regarding this hold down circuit when servicing, so that this hold down circuit is operated correctly. Serviceman Warning With minimum BRIGHTNESS and CONTRAST, the operating high voltage in this receiver is lower than 30.0±1kv(36V), 29.0±1kv(32V). In case any component having influence on the high voltage is replaced, confirm that high voltage with minimum BRIGHTNESS and CONTRAST is lower than 30.0±1kv(36V), 29.0±1kv(32V). To measure high voltage use a High Impedance High Voltage meter. Connect (-) to chassis earth and (+) to the CRT Anode button. (See the following connection diagram.) Note: Turn power switch OFF without fail before the connection to the Anode button is made.
2
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in HITACHI television receivers have special safety-related characteristics. These are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified with an ! mark in the schematics and parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the HITACHI-recommended replacement component, shown in the parts list in this Service Manual, may create shock, fire, X-radiation, or other hazards. Production safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current HITACHI Service Manual. A subscription to, or additional copies of HITACHI Service Manuals may be obtained at a nominal charge from HITACHI Sales Corporation. the product and may void warranty. Consumers should not risk trying to do the necessary repairs and should refer to a qualified service technician. WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other reproductive harm (California Health and Safety Code, Section 25249.5). When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with solder. Also, when soldering do not inhale any smoke or fumes produced.
SAFETY NOTICE USE ISOLATION TRANSFORMER WHEN SERVICING
Components having special safety characteristics identified by ! on the parts list in this service manual and its supplements and bulletins. Before servicing this product, it is important that the service technician read and follow the "Safety Precautions" and the "Product Safety Notices" in this Service Manual. For continued X-Radiation protection, replace picture tube with original type or HITACHI equivalent type.
CPT ANODE
(+) CPT (-)
POWER SOURCE
CHASSIS GROUND
HIGH IMPEDANCE H.V. METER
This television receiver is designed to operate on 120 Volts/60Hz, AC house current. Insert the power cord into a 120 Volts/60Hz outlet. NEVER CONNECT THE TV TO OTHER THAN THE SPECIFIED VOLTAGE OR TO DIRECT CURRENT.
X-Radiation TUBE: The primary source of X-Radiation in this receiver is the picture tube. The tube utilized in this chassis is specially constructed to limit X-Radiation emissions. For continued XRadiation protection, the replacement tube must be the same type as the original HITACHI-approved type. When troubleshooting and making test measurements in a receiver with an excessive high voltage problem, avoid being unnecessarily close to the picture tube and the high voltage component. Do not operate the chassis longer than is necessary to locate the cause of excessive voltage.
This Service Manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of
3
SERVICING PRECAUTIONS
CAUTION: Before servicing instruments covered by this service data and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precautions. Remember: Safety First. General Servicing Guidelines 1. Always unplug the instrument AC power cord from the AC power source before: a. Removing or reinstalling any component, circuit board, module, or any other instrument assembly. b. Disconnecting or reconnecting any instrument electrical plug or other electrical connection. Connecting a test substitute in parallel with an electrolytic capacitor in the instrument. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard. Discharging the picture tube anode. 8. Always connect the test instrument ground lead to the appropriate instrument chassis ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last. Use with this instrument only the test fixtures specified in this service data. CAUTION: Do not connect the test fixture ground strap to any heatsink in this instrument.
9.
c.
Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge build-up or exposure of the assembly. Use only a grounded-tip soldering iron to solder or desolder ES devices. Use only an anti-static type solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ES device. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.) Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.)
d. 2.
Test high voltage only by measuring it wih an appropriate high voltage meter or other voltage measuring device (DVM, FETVOM, etc.) equipped with a suitable high voltage probe. Do not test high voltage by "drawing an arc." Discharge the picture tube's anode by (a) first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected, and then (b) touch the other end of the insulated clip lead to the picture tube high voltage output, using an insulated handle to avoid personal contact with high voltage. Do not spray chemicals on or near this instrument or any of its assemblies. Unless specified otherwise in these service data, clean electrical contacts by applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable nonabrasive applicator: 10% (by volume) Acetone and 90% (by volume) ispropyl alcohol (90%-99% strength). CAUTION: This is a flammable mixture. Unless specified otherwise in these service data, lubrication of contacts is not required. Do not defeat any plug/socket B+ voltage interlocks which instruments covered by this service data might be equipped.
2.
3.
3.
4.
4.
5.
5.
6.
7.
6.
8. 7. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat-sinks are correctly installed.
4
General Soldering Guidelines 1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range 500°F to 600°F. 2. Use an appropriate gauge of resin-core solder composed of 60 parts tin/40 parts lead. Keep the soldering iron tip clean and well-tinned. Thoroughly clean the surfaces to be soldered. Use a small wire-bristle (0.5 inch or 1.25 cm) brush with a metal handle. Do not use freon-propelled spray-on cleaners. Use the following desoldering technique. a. Allow the soldering iron tip to reach normal temperature (500°F to 600°F). b. Heat the component lead until the solder melts. Quickly draw away the melted solder with an anti-static, suctiontype solder removal device or with solder braid. CAUTION: Work quickly to avoid overheating the circuit board printed foil.
2.
Draw away the melted solder with an anti-static suction-type solder removal device (or with solder braid) before removing the IC.
Replacement 1. Carefully insert the replacement IC in the circuit board. 2. Carefully bend each IC lead against the circuit foil pad and solder it. Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply acrylic coating to areas.)
3. 4.
3.
5.
"Small-signal" Discrete Transistor Removal/Replacement 1. Remove the defective transistor by clipping its leads as close as possible to the component body. 2. Bend into a "U" shape the end of each of three leads remaining on the circuit board. Bend into a "U" shape the replacement transistor leads. Connect to replacement transistor leads to the corresponding leads extending from the circuit board and crimp the "U" with long nose pliers to insure metal to metal contact, then solder each connection.
3. 4.
6.
Use the following soldering technique. a. Allow the sodering iron tip to reach normal temperature (500°F to 600°F). b. First, hold the soldering iron tip and solder strand against the component lead until the solder melts. Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil, and hold it there only until the solder flows onto and around both the component lead and the foil. CAUTION: Work quickly to avoid overheating the circuit board printed foil or components. Closely inspect the solder area and remove any excess or splashed solder with a small wire-bristle brush.
Power Output Transistor Devices Removal/Replacement 1. Heat and remove all solder from around the transistor leads. 2. Remove the heatsink mounting screw (if so equipped). Carefully remove the transistor from the circuit board. Insert new transistor in circuit board. Solder each transistor lead, and clip off excess lead. Replace heatsink.
c.
3. 4. 5. 6.
d.
Diode Removal/Replacement 1. Remove defective diode by clipping its leads as close as possilbe to diode body. 2. Bend the two remaining leads perpendicularly to the circuit board. Observing diode polarity, wrap each lead of the new diode around the corresponding lead on the circuit board. Securely crimp each connection and solder it. Inspect (on the circuit board copper side) the solder joints of the two "original leads". If they are not shiny, reheat them and, if necessary, apply additional solder.
3.
Use Solding Iron to Pry Leads
4. 5.
IC Removal/Replacement Some Hitachi unitized chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the circuit foil. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in paragraphs 5 and 6 above. Removal 1. Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts.
5
Fuses and conventional Resistor Removal/Replacement 1. Clip each fuse or resistor lead at top of circuit board hollow stake. 2. Securely crimp leads of replacement component around stake 1/8 inch from top. Solder the connections. CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board, to prevent excessive component temperatures.
At Other Connections Use the following technique to repair defective copper pattern at connections other than IC Pins. This technique involves the installation of a jumper wire on the component side of the circuit board.
3.
DEFECTIVE COPPER REMOVED
Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board, causing the foil to separate from, or "lift-off" the board. The following guidelines and procedures should be followed whenever this condition is encountered. In Critical Copper Pattern Areas High component/copper pattern density and/or special voltage/current characteristics make the spacing and integrity of copper pattern in some circuit board areas more critical than in others. The circuit foil in these area is designated as Critical Copper Pattern. Because Critical Copper Pattern requires special soldering techniques to ensure the maintenance of reliability and safety standards, contact your Hitachi personnel. At IC Connections To repair defective copper pattern at IC connections, use the following procedure to install a jumper wire on the copper pattern side of the circuit board. (Use this technique only on IC connections.) 1. Carefully remove the damaged copper pattern with a sharp knife. (Remove only as much copper as absolutely necessary.) 2. Carefully scratch away the solder resist and acrylic coating (if used) from the end of the remaining copper pattern. 1.
Insulated Jumper Wire Remove the defective copper pattern with a sharp knife. Remove at least 1/4 inch of copper, to ensure hazardous condition will not exist if the jumper wire opens. Trace along the copper pattern from both wire sides of the pattern break and locate the nearest component directly connected to the affected copper pattern. Connect insulated 20-gauge jumper wire from the nearest component on one side of the pattern break to the lead of the nearest component on the other side. Carefully crimp and solder the connections. CAUTION: Be sure the insulated jumper wire is dressed so that it does not touch components or sharp edges.
2.
3.
Frequency Synthesis (FS) Tuning Systems 1. Always unplug the instrument AC power cord before disconnecting or reconnecting FS tuning system cables and before removing or inserting FS tuning system modules. 2. The FS tuner must never be disconnected from the FS tuning control module while the power is applied to the instrument. When troubleshooting intermittent problems that might be caused by defective cable connection(s) to the FS tuning system, remove the instrument AC power as soon as the defective connector is found and finish confirming the bad connection with a continuity test. This procedure will reduce the probability of electrical overstress of the FS system semi-conductor components.
BARE JUMPER WIRE
3.
CRIMP AND SOLDER
3.
Install Jumper Wire and Solder Bend a small "U" in one end of a small-gauge jumper wire and carefully crimp it around the IC pin. Solder the IC connection. Route the jumper wire along the path of the cut-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Solder the overlapped area, and clip off any excess jumper wire.
4.
6
NOTE: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose.
Leadless Chip Components (surface mount)
Chip components must be replaced with identical chips due to critical foil track spacing. There are no holes in the board to mount standard transistors or diodes. Some chip capacitor or resistor board solder pads may have holes through the board, however the hole diameter limits standard resistor replacement to 1/8 watt. Standard capacitors may also be limited for the same reason. It is recommended that identical chip components be used. Chip resistors have a three digit numerical resistance code -1st and 2nd significant digits and a multiplier. Example: 162 = 1600 or 1.6K resistor, 0 = 0 (jumper). Chip capacitors generally do not have the value indicated on the capacitor. The color of the component indicates the general range of the capacitance. Chip transistors are identified by a two letter code. The first letter indicates the type and the second letter, the grade of transistor. Chip diodes have a two letter identification code as per the code chart and are a dual diode pack with either common anode or common cathode. Check the parts list for correct diode number.
How to Replace Flat-lC --Required Tools--
· Soldering iron · iron wire or small awl · De-solder braids · Magnifier 1. Remove the solder from all of the pins of a Flat-lC by using a de-solder braid.
De-Solder Braid Soldering Iron
2.
Put the iron wire under the pins of the Flat-lC and pull it in the direction indicated while heating the pins using a soldering iron. A small awl can be used instead of the iron wire.
Iron Wire Awl
Pull
Soldering Iron
Soldering Iron
Component Removal
1. 2. 3. Use solder wick to remove solder from component end caps or terminals. Without pulling up, carefully twist the component with tweezers to break the adhesive. Do not reuse removed leadless or chip components since they are subject to stress fracture during removal.
3.
Remove the solder from all of the pads of the Flat-lC by using Soldering a de-solder braid.
Iron De-Solder Braid Flat-IC
Chip Component Installation
1. 2. Put a small amount of solder on the board soldering pads. Hold the chip component against the soldering pads with tweezers or with a miniature alligator clip and apply heat to the pad area with a 30 watt iron until solder flows. Do not apply heat for more than 3 seconds.
4.
Position the new Flat-lC in place (apply the pins of the FlatlC to the soldering pads where the pins need to be soldered). Properly determine the positions Polarity Symbol of the soldering pads and pins by correctly aligning the polarity symbol.
Chip Components
TYPE
5.
SOLDER CAPS
C
GRADE
Solder all pins to the soldering pads using a fine tipped soldering iron.
B E
TRANSISTOR CAPACITOR 1ST DIGIT COMMON CATHODE 2ND DIGIT MULTIPLIER = 1600 = 1.6K
Solder
Soldering Iron
ANODES MH DIODE
SOLDER CAPS RESISTOR
6. Check with a magnifier for solder bridge between the pins or for dry joint between pins and soldering pads. To remove a solder bridge, use a de-solder braid as shown in the figure below.
De-Solder Braid Bridge Solder Soldering Iron
7
TECHNICAL SPECIFICATIONS
POWER RATINGS 36UX01S/CZOU 32UX01S/CYOU 36GX01B/CZOG 32GX01B/CYOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168 .168 .150 .150 Max. Watts Max. Watts Max. Watts Max. Watts
COLOR PICTURE TUBE 36UX01S/CZOU 32UX59B/CYOU 36GX01B/CZOG 32GX01B/CYOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A90AHH50X01 .A80LJF30X(W) .A90LPY30X01 .A80LJF30X(W)
CAUTION: Below is an EXAMPLE only. See Replacement Parts List for details. The following symbol near the fuse indicates fast operating fuse (to be replaced). Fuse ratings appear within the symbol. Example:
F 8 A 125V
"RISK OF FIRE - REPLACE FUSE AS MARKED"
125V 8A F901
The rating of fuse F901 is 8.0A-125V. Replace with the same type fuse for continued protection against fire.
8
TECHNICAL CAUTIONS
High Voltage Limiter Circuit Operation Check and Overvoltage Protection Circuit Operation Check Adjustment Preparation 1. Connect a High Voltage Voltmeter between CPT Anode terminal (Anode capside) and Ground. 2. Set the AC input voltage to 120±3V. 3. Receive Circle Pattern or Broadcast Signal and set "BRIGHTNESS" and "CONTRAST" to maximum. Adjust the SCREEN VR so that Beam Current is IB±0.1mA. (The voltage at ABL terminal (C706) should be 12V or less.)
High Voltage Voltmeter (DC Voltage Divider) CPT Anode Use the voltmeter which can indicate up to the first decimal point with an impedance of 10M or more. 6 4 +B 9
ABL
C706 0.1/50
Less than 12V
10
T702 FBT
Digital Voltmeter CPT Ground Wire
Adjustment Procedure 1. Check that the normal High Voltage and +B Voltage as below. CHASSIS CZOU,CZOG CYOU, CYOG EHT 1kV 30.0±1kV 29.0±1kV IB 0.1mA +B 1.7±0.1mA 140 0.3V 1.5±0.1mA 140 0.3V
CPT Anode CPT High Voltage Voltmeter (DC Voltage Divider)
30.0 CPT Ground Wire (TP701)
Digital Voltmeter
Use the voltmeter impedance 10M or more with indication to the first decimal place.
2. Connect a 10K 1/8W resistor to both ends of D703 and check that power is turned off.
D703 To D704 Resistor 10k 1/8W Resistor
R704 +56V
3. Disconnect the AC plug and remove the 10k resistor. 9
CONTENTS
Page #
Contents of Adjustments ....................................................................................................................................................................10 · Front Panel, Rear Panel and Remote Control Operation ..............................................................................................................13 1. 2. 3. 4. 5. Front Panel Controls (refer to remote control for basic operation) ..............................................................................................13 Front Panel Jacks and Connections ............................................................................................................................................15 Rear Panel Jacks ........................................................................................................................................................................18 Rear Panel Connections..............................................................................................................................................................19 The Remote To Control Your TV ..................................................................................................................................................20
· Adjustment Procedures ....................................................................................................................................................................21 I. Main Chassis Adjustment ........................................................................................................................................................21 1. 2. 3. 4. 4.1 4.3 4.3.1 4..3.2 4.3.3 4.3.4 4.3.5 4.3.6 II. Multi Master I2C Bus System..........................................................................................................................................21 Adjustment Procedure Start-Up ....................................................................................................................................21 Adjustment Mode............................................................................................................................................................22 Adjustment Procedure ....................................................................................................................................................22 Initial Setting of EEPROM (I003) ....................................................................................................................................22 MTS Adjustment ............................................................................................................................................................23 Input Level Adjustment ..........................................................................................................................................23 Stereo VCO Adjustment ........................................................................................................................................23 Filter Adjustment ....................................................................................................................................................24 Separation Adjustment ..........................................................................................................................................24 SAP VCO Adjustment ............................................................................................................................................24 Check data of MTS demodulation circuit adjustment ....................................................................................................24
Function Setting ........................................................................................................................................................................24 1. 2. How to Set Memory Switch Setting Mode ......................................................................................................................24 Explanation of Memory Switch Functions ......................................................................................................................25
III.
Memory Initialize........................................................................................................................................................................25 1. Memory Initialize Operation Check ................................................................................................................................25
IV.
Operation Check ........................................................................................................................................................................25 1. 2. 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6 AFC Operation Check ....................................................................................................................................................25 Channel Selection Circuit Operation Check ..................................................................................................................26 Channel Up/Down Selection ..........................................................................................................................................26 CH Up/Down ..................................................................................................................................................................26 Volume Up/Down ............................................................................................................................................................28 Power On/Off ..................................................................................................................................................................28 Input................................................................................................................................................................................28 Menu...............................................................................................................................................................................28 Menu Mode (using Remo-con) ......................................................................................................................................28 Set Up Mode ..................................................................................................................................................................28 Program Mode ................................................................................................................................................................29 Parental Control..............................................................................................................................................................30 Clock Mode (clock operation check) ..............................................................................................................................30 Picture Mode ..................................................................................................................................................................31 Sound Mode ..................................................................................................................................................................31
10
V.
Deflection Circuit Picture Adjustment Operation Check ......................................................................................................32 1. 2. 3. 4. High Voltage Limiter Circuit Operation Check and Over Voltage Protection Circuit Operation Check ..........................32 FBT Protection Circuit Operation Check ........................................................................................................................32 Load Short Protection Circuit Operation Check ............................................................................................................33 Weak Electric Field Check..............................................................................................................................................33
VI.
Remo-con Operation Check ....................................................................................................................................................33 1. 2. 3. 4. 5. 6. 7. 8. 9. Direct Channel Selection ................................................................................................................................................33 Last LST-CH (Last Channel Recall)................................................................................................................................33 Mute...... ..........................................................................................................................................................................33 Recall ..........................................................................................................................................................................33
PinP.......33 Move..... ..........................................................................................................................................................................34 Swap..... ..........................................................................................................................................................................34 Freeze...34 PinP Ch ..........................................................................................................................................................................34
VII. VIII.
Memory Initialize (2) ..................................................................................................................................................................34 Final Assembly Adjustment/Common Service Adjustment ..................................................................................................34 1. 1.2 1.3 1.4 1.5 2. Purity Convergence Adjustment ....................................................................................................................................34 Purity Adjustment (Using Microscope) ..........................................................................................................................35 Purity Adjustment (Hand Operation) ..............................................................................................................................37 Static Convergence Adjustment ....................................................................................................................................39 Dynamic Convergence Adjustment ................................................................................................................................40 Focus Adjustment ..........................................................................................................................................................40
IX.
Deflection circuit picture adjustment ......................................................................................................................................41 1. 1.1. 1.2 1.3 1.4 1.5 Deflection Circuit Picture Adjustment ............................................................................................................................41 Horizontal Center Adjustment ................................................................................................................................41 Vertical Size and Phase Adjustment......................................................................................................................41 Side Pin Distortion Adjustment ..............................................................................................................................41 Horizontal Size Adjustment....................................................................................................................................42 E/W Trapezoid Adjustment ....................................................................................................................................42
X.
White Balance ..........................................................................................................................................................................43 1. 2. 3. White Balance Adjustment ............................................................................................................................................43 Sub Black Level Adjustment ..........................................................................................................................................43 Sub Picture Adjustment ..................................................................................................................................................43 3.1 Sub Picture White Balance Adjustment ................................................................................................................43
XI.
Matching Check With Other Instrument..................................................................................................................................44 1. 2. 3. 4. 5. 6. VIDEO:1 Input Terminal Matching Check ......................................................................................................................44 VIDEO:2 Input Terminal Matching Check ......................................................................................................................44 VIDEO:3 Input Terminal Matching Check ......................................................................................................................44 S-in:1 Input Terminal Matching Check............................................................................................................................44 Component Input Check ................................................................................................................................................44 Audio Out Level Check ..................................................................................................................................................45
XII.
Safety Check.... ..........................................................................................................................................................................45 1. Polarity Check ................................................................................................................................................................45
11
XIII.
MTS Operation Check ..............................................................................................................................................................45 1. 2. STEREO/SA Broadcast Receiving Check ......................................................................................................................45 MTS Mode Check ..........................................................................................................................................................45
3. XIV. XV.
STEREO Separation Check ........................................................................................................................................................45 Setting for Delivery....................................................................................................................................................................46 Adjustment Position List ..........................................................................................................................................................47
12
FRONT PANEL CONTROLS
32UX01S and 36UX01S models only.
POWER
CH -
CH +
VOL -
VOL +
MENU
INPUT
PUSH
CURSOR
Power Button Channel Buttons
Volume Buttons MENU
OPEN DOOR
PUSH
POWER
CH -
CH +
VOL -
VOL +
INPUT
EXIT CURSOR
MENU
INPUT/ EXIT
Infrared Sensor
INPUT 3 VIDEO AUDIO L/MONO R
Video 3 Input
A detailed explanation of the circled numbers is on page 14.
13
FRONT PANEL CONTROLS
POWER Button Press this button to turn the TV on or off.
CHANNEL Selector Press these buttons until the desired channel appears in the top right corner of the TV screen.
VOLUME Level Press these buttons for your desired sound level. The volume level will be displayed on the TV screen.
INPUT/EXIT Button Press this button to select the current antenna or VIDEO source. Your selection is shown in the top right corner of the screen. This button also serves as the EXIT button when in MENU mode. NOTE: Your HITACHI TV will appear to be turned OFF if there is no video input when VIDEO Source is selected. Press the INPUT button until the normal broadcast picture appears. If the picture does not appear, the power is OFF.
MENU Button This button allows you to enter the MENU, making it possible to set TV features to your preference with out using the remote.
REMOTE CONTROL INFRARED Sensor Point your remote control at this area when selecting channels, adjusting volume, etc.
FRONT INPUT JACKS Use these audio/video jacks for a quick hook-up to a comcorder or VCR to instantly view your favorite show or new recording. Press the INPUT button until VIDEO:3 appears in the top right corner of the TV screen. If you have mono sound, insert the audio cable into the left channel jack.
14
FRONT PANEL JACKS AND CONNECTIONS
The front panel jacks are provided as a convenience to allow you to easily connect a camcorder or VCR as shown in the following examples:
INPUT 3
INPUT 3
VIDEO
L/MONO R AUDIO
VIDEO
L/MONO R AUDIO
INPUT 3
VIDEO
L/MONO R AUDIO
NOTE:
Completely insert connection cord plugs when connecting to front panel jacks. If you do not, the picture that is played back may be abnormal.
15
REAR PANEL JACKS
REAR PANEL OF TELEVISION
32/36UX01S
ANT A INPUT 1 S-VIDEO VIDEO R L / (MONO) AUDIO VIDEO ANT B Y PB PR
COMPONENT VIDEO
32/36GX01B
VHF/UHF INPUT 1 S-VIDEO
TO CONVERTER
S-VIDEO INPUT
VIDEO
R
L / (MONO) AUDIO
S-VIDEO INPUT
R
L / (MONO) AUDIO
VIDEO
R
L / (MONO) AUDIO
INPUT TERMINALS
Y PB PR
INPUT TERMINALS
COMPONENT VIDEO
R
L
Y-PB-PR INPUTS
INPUT 2
R
L
Y-PB-PR INPUTS
INPUT 2
AUDIO TO HI-FI
AUDIO TO HI-FI
VHF/UHF ANTENNA TERMINALS
AUDIO TO HI-FI OUTPUT TERMINALS
VHF/UHF ANTENNA TERMINAL
AUDIO TO HI-FI OUTPUT TERMINALS
Antenna Inputs 32GX01B and 36GX01B models The VHF/UHF terminal can be used for Normal TV, Cable TV (CATV), video games, etc. 32UX01S and 36UX01S models The remote control allows you to switch between two separate 75-Ohm RF antenna inputs, ANT A and ANT B. ANT A input can be displayed as a main picture or sub-picture. ANT B can only be displayed as a sub picture. (ANT B cannot be displayed as a main picture.) The antenna output labeled ÒTO CONVERTERÓ allows the ANT A connection to pass directly to a different source such as a cable box. Audio/Video Inputs 1, 2 The INPUT button will step through each video source and antenna source input each time it is pressed. Use the audio and video inputs to connect external devices, such as VCRs, camcorders, laserdisc players, etc. (If you have mono sound, insert the audio cable into the left channel jack.) Y-PBPR Input This input provides Y-PBPR jacks for connecting equipment with this capability, such as a DVD Player. This input can receive 480i signal only. Audio to HI-FI These jacks provide variable audio output to a separate stereo amplifier. With this connection, the audio to the stereo can be controlled by the televisionÕs main volume. Use these jacks for the SURROUND Left and Right channels. S-Video Inputs 1 provide S-Video (Super Video) jacks for connecting equipment with S-Video output capability.
16
TIPS ON REAR PANEL CONNECTIONS
The S-Video connections are provided for high performance laserdisc players, VCRs etc. that have this feature. Use these connections in place of the standard video connection if your device has this feature. COMPONENT: Y-PBPR connections are provided for high performance components, such as DVD players. Use these connections in place of the standard video connection if your device has this feature. When using the Y-PBPR input jacks, connect your components audio output to the TV's Input 2 Left and Right Audio inputs jack. If your device has only one audio output (mono sound), connect it to the left audio jack on the television. Refer to the operating guide of your other electronic equipment for additional information on connecting your hook-up cables.
17
REAR PANEL CONNECTIONS (32UX01S and 36UX01S)
Outside antenna or cable TV coaxial cable
2-Way signal splitter
ANT A
INPUT 1 S-VIDEO VIDEO R L / (MONO) AUDIO VIDEO R L / (MONO) AUDIO Y PB PR
COMPONENT VIDEO
ANT A
INPUT 1 S-VIDEO VIDEO R L / (MONO) AUDIO VIDEO R L / (MONO) AUDIO Y PB PR
COMPONENT VIDEO
TO CONVERTER
TO CONVERTER
ANT B
ANT B
R
L
R
L
INPUT 2
AUDIO TO HI-FI
INPUT 2
AUDIO TO HI-FI
INPUT OUTPUT
Cable TV Box
Optional, see tips on page 15
ANT IN
S-VHS V
L OUTPUT
R
VCR #1
Y PB P R OUTPUT
L
R
ANT A
INPUT 1 S-VIDEO VIDEO R L / (MONO) AUDIO VIDEO R L / (MONO) AUDIO Y PB PR
COMPONENT VIDEO
TO CONVERTER
DVD Player, Laserdisc player, etc.
ANT B
R
L
INPUT 2
AUDIO TO HI-FI
L R INPUT
Stereo System Amplifier
Typical full feature setup. Follow connections that pertain to your personal entertainment system.
18
REAR PANEL CONNECTIONS (32GX01B AND 36GX01B)
Outside antenna or cable TV coaxial cable
2-Way signal splitter
VHF/UHF
INPUT 1 S-VIDEO VIDEO R L / (MONO) AUDIO VIDEO R L / (MONO) AUDIO Y PB PR
COMPONENT VIDEO
R
L
INPUT 2
AUDIO TO HI-FI
Optional, see tips on page 15
ANT IN
S-VHS V
L OUTPUT
R
VCR #1
Y
PB P R OUTPUT
L
R L R INPUT
DVD Player, Laserdisc player, etc.
Stereo System Amplifier
Typical full feature setup. Follow connections that pertain to your personal entertainment system.
19
USING THE REMOTE TO CONTROL YOUR TV
POWER TV CBL/SAT SWAP DVD/VCR
POWER TV CBL/SAT DVD/VCR
PIP HELP
MOVE
FREEZE TV/VCR
PIP CH
HELP
TV/VCR
MENU
MENU
MUTE
EXIT
LAST CH
MUTE
EXIT
LAST CH
VOL
CH
VOL
CH
1 4 7
INPUT
2 5 8 0
3 6 9
SLEEP
1 4 7
INPUT
2 5 8 0
3 6 9
SLEEP
REC
C.S.
RECALL
REC
C.S.
RECALL
CLU-431UG
CLU-381UG
20
I. MAIN CHASSIS ADJUSTMENT 1. Multi Master I2C Bus System M10LXU Chassis uses I2C Bus control system. Fig. 1 shows this control system. Fig. 1
I003 EEPROM
TABLE 1 Adjustment Code
Mode MTS Function Stereo VCO adjustment SAP VCO adjustment FILTER adjustment Input level adjustment Low pass separation adjustment High pass separation adjustment G DRIVE adjustment B DRIVE adjustment R Cut off adjustment G Cut off adjustment B Cut off adjustment SUB Brightness adjustment RGB Brightness adjustment H POSITION adjustment H SIZE adjustment V POSITION adjustment V SIZE adjustment E/W TARABOLA adjustment V-S CORRECTION adjustment V-LIN CORRECTION adjustment E/W TRAPEZOID adjustment E/W CORNER adjustment V CENTER adjustment SUB CONTRAST adjustment SUB COLOR adjustment SUB TINT adjustment SUB SHARPNESS adjustment W/B G adjustment W/B B adjustment SERVICE OSD H POSITION CCD SLICE LEVEL adjustment CCD SYNC TIPSLICE LEVEL adj. OSD H size adjustment PIP R OFFSET adjustment G OFFSET adjustment B OFFSET adjustment PIP SUB COLOR adjustment PIP SUB TINT adjustment PIP CONTRAST adjustment PIP H POSITION PIP BRIGHTNESS adjustment 31~0 63~0 31~0 31~0 63~0 31~0 225~0 31~0 Adjustment Data 63~0 63~0 63~0 63~0 63~0 63~0 127~0 127~0 255~0 255~0 255~0 31~0 7~0 31~0 31~0 63~0 63~0 63~0 63~0 127~0 127~0 63~0 63~0 127~0 127~0 3~0 Adjustment Code A01 A02 A03 A04 A05 A06 P01 P02 P03 P04 P05 P06 P07 P08 P09 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 M01 M02 M03 M04 S01 S02 S03 S04 S05 S06 S07 S08
(SLAVE)
I501 IF/VIDEO/CHROMA /DEF I401 MTS DECODER U101 MAIN TUNER
VIDEO
(SLAVE)
IP001 PINP CONTROL I401 AUDIO CONTROL
SCL2 SDA2
I001 MICRO COMPUTER
SCL3 SDA3 SCL1 SDA1
(SLAVE)
I301 SELECTOR U102 PIP TUNER
(MASTER)
I001 (Master) controls other ICs (Slave). Adjustment data is memorized in I003 (EEPROM). I001 reads this data and controls other ICs (slave). Adjustment items applied in this chassis are shown in Table 1. 2. ADJUSTMENT PROCEDURE-START UP 2-1 How to Get to Adjustment Mode Chassis adjustment can be done by using the front control panel buttons with CTV set turned off. Press "POWER" and "INPUT" keys at the same time, and hold for more than 3 seconds. The CTV set turns on in adjustment mode with OSD as follows.
Hold 3 ~ 5 Sec Hold More Than 5 Sec.
OSD
* This data is an approximate service code data. Fine adjustment must be done using the specified test procedure and adjustment tools. 2-2 Changing Data and Adjustment Code When the CTV set is in adjustment mode, the cursor , , , and MENU keys of the remote control will be the adjustment keys. A. Use any Hitachi remote control when making an adjustment.
A00 D000
P00 D000
AUDIO Adjustment Mode
PICTURE Adjustment Mode
A00 D000
Adjustment Code (Refer to Table 1) Adjustment Data
"To Escape from Adjustment Mode" Press "POWER" button of remo-con or front panel once at anytime. Then set returns to normal state.
MENU
EXIT
, keys are used for changing adjustment code. , keys are used for changing data. MENU key is used for changing "Cut Off Mode"/"Normal mode." (Refer to cut off adjustment) 21
3. ADJUSTMENT MODE
Change Selection (Up)
1. Before turning ON the set, press and hold the POWER button and INPUT button of the front panel of TV set for about 3 seconds. 2. After 3 seconds, a small square will appear in the left center of the screen. There are two different displays, depending upon how long the POWER and INPUT buttons are pressed and held. One shows A and D for audio adjustment, and the other shows P and D for the picture adjustment.
Decrease Data Value
MENU
Increase Data Value
Change Selection (Down)
5. After finishing the necessary adjustment press the ÒPOWERÓ button. Adjustment mode is released and TV set returns to normal condition. 4. ADJUSTMENT PROCEDURE 4-1 Initial setting of EEPROM (I003) Adjustment Preparation (I2C adjustment only) B A (1) Apply +12V to k point and check k point is 5V±0.3V
A I903 5 1 3
+
P00 D000 D = Data value P = Picture A = Audio
B 42 8 I001
3. To activate the picture adjustment mode, input a data value of 30 (D030), using the front panel or remote control cursor , before any of the picture adjustments can be adjusted.
C960
I003
P00 D000
The same for the audio adjustment. To activate the adjustment, you need an input data value of 20 before any of the audio adjustments can be adjusted.
(2)
Connect I2C adjustment jig as shown.
Adjustment procedure (1) Apply a DIODE as follows.
I001
12 3
A00 D000
4. To make a selection, use the CURSOR keys on front control panel or the Remote Control.
Power Button Channel Buttons
R011
R002
DIODE
APPLY
Volume Buttons MENU
(2) Check pin of I001 changes L H L. Mi-con outputs "H" from pin during E2PROM initial operation. Never unplug before pin return to L. (3) TV set will tune to Channel 3. (4) Remove DIODE.
Front Panel Controls
POWER
CH -
CH +
VOL -
VOL +
INPUT
EXIT CURSOR
MENU
INPUT/ EXIT
Infrared Sensor
22
4-3 MTS ADJUSTMENT 4-3-1 Input Level Adjustment Adjustment Preparation (1) Apply a signal to output terminals of the Main Tuner on the Main PWB using the circuit shown below. Connect 100 resistor between AGC terminal, Pin and GND.
Note : Video signal and Audio Signal should be synchronized.
Video signal Generator
VIDEO IF modulator (50 output) AUDIO fp=45.75MHz fs=41.25MHz
2200PF 50
MTS signal Generator EXT SYNC IN
MAIN TUNER U101 IF 1 terminal 11
Sound modulation condition: Noise reduction encoder: ON Stereo signal; R=0 (L only), 300Hz, 30% modulation R=0 (L only), 3kHz, 30% modulation Monaural signal; Monaural, 400Hz, 100% modulation (PRE-EN Off) SAP signal; SAP, 300Hz, 30% modulation (see note) (2) Connect AC voltmeter Vo to I401 pin 40 . Use the AC voltmeter of Matsushita model VP-950C or equivalent. Adjustment Procedure (1) Select sound input then adjust the data "A04" to Vo= 500mVrmsw10mVrms at I401 pin 40 . 4-3-2 Stereo VCO adjustment Adjustment Preparation (1) Same as items 4-3-1(1) and 4-3-1(2). (2) Connect a frequency counter to I401 pin 40 . Use 1:1 Probe. (Probe standard Ri1M, Ci15pF) (3) Should be no signal at pin (I401). (4) Connect capacitor (100µF/16v) as it is shown. (5) Select adjustment code "A01."
100
IF modulator output signal waveform (Color bar or all white)
87.5%
100%
25%
Carrier 0
R107 R401 U101
14 + +
7
I401
R402
C406
IF modulator output level and P/S P=105dBu (50 termination) S level; -3dB to P level At this time, S/N ratio of F/E video output is 45dB or less.
100 F/16v
Adjustment Procedure (1) Adjust the data "A01" to set 15.73±0.1KHz by keys. (2) Remove capacitor (100µF/16v)
,
23
4-3-3 Filter Adjustment Adjustment Preparation (1) Connect capacitor 100 F/16V as it is shown. (2) Apply signal to I401 pin with the circuit as it is shown.
F/E U101
14 + -
4-3-5 SAP VCO Adjustment Adjustment Preparation (1) Connect a frequency counter to I401 pin 40 . (2) Select adjustment Code "A02". (3) Connect same circuit as in item 4-3-2(5). and GND. (4) Apply 1M resistor to I401 pin
I401
R401 R402
+
7
I401
C406
APPLY
100µF/16V
1M½
SG 600 Output Signal Generator
+
7
I401
600
4.7 F/25
a SG output signal spec.
1
Adjustment Procedure (1) Adjust the data "A02" by , keys so that the frequency is 78.67+0.5KHz. (2) Remove 1M resistor. 4-3-6 Check data of MTS demodulating circuit adjustment. (1) Unplug set after all items are adjusted. (2) Plug in the TV set. (3) Check that data are the same as adjusted. II. FUNCTION SETTING M10LXU Chassis has the data for setting variety functions in EEPROM (I003). Microprocessor (I001) set the functions needed for each model according to EEPROM data (memory switch data). 1. HOW TO SET MEMORY SWITCH SETTING MODE (1) Repeat section 4-1 (initial setting of EEPROM (I003) on Page 22). (2) TV set will automatically send features data to appropriate model. (3) Table 1 below shows model name and their features.
Frequency f=15.73kHz (Sine wave) Signal Level V=100mVrms
2
(3) Connect an AC voltmeter or oscilloscope to I401 pin 40 . (4) Select adjustment code "A03." Adjustment Procedure (1) Adjust the data "A03" so that the voltage of I401
40
pin becomes minimum by
,
keys.
4-3-4 Separation Adjustment (The adjustment of items 4-3-1 and 4-3-3 must be completed first) Adjustment Preparation (1) Use the same circuit as input level adjustment 4-3-1(1). (2) Connect a frequency counter to I401 pin 40 or connect an oscilloscope. (3) Select adjustment code "A05" and set data "D032". Adjustment Procedure (1) Select input signal and select adjustment code "A05". Adjust by , keys so that 300Hz level becomes minimum (L separation adjustment) and select adjustment code (2) Select input signal "A06". Adjust by , keys so that 3KHz level becomes minimum (H separation adjustment). (3) Repeat (1) and (2). Adjustment precision: within +1dB from minimum point.
TABLE 1
MODEL AND DATA TABLE MODEL NAME
36GX01B 32GX01B
DATA NAME TU V 50/60 PIP
36UX01S 32UX01S
1 1 1 1
0 1 1 0
24
2. EXPLANATION OF MEMORY SWITCH FUNCTIONS (1) TU (2 Tuners) Selects TU for 1 or 2 tuners. Data "1" - Two tuners. Data "0" - One tuner. (2) (V-CHIP) Selects (V-CHIP) Function or not. Data "1" - Apply (V-CHIP) function. Data "0" - Do not apply (V-CHIP) function. (3) 50/60 Apply 50/60 frequency or not. Data "1" Apply 50/60 frequency. Data "0" Do not apply 50/60 frequency. (4 ) PIP Apply PIP function or not. Data "1" - Apply PIP function. Data "0" - Do not apply PIP function.
III. MEMORY RE-INITIALIZATION 1.MEMORY INITIALIZE OPERATION CHECK Adjustment Procedure (1) Apply diode as follows.
I001
12 2
R011
DIODE
R001 APPLY
(2) Check that the receiving channel goes to CH03. Unit is set to factory settings. (3) Remove diode. IV. OPERATION CHECK 1. AFC OPERATION CHECK Adjustment Preparation (1) Connect the circuit as shown below to the ANT terminal. Adjustment Procedure (1) Receive a standard carrier (not offset) with the channel up/down or direct selection buttons. (2) Receive an offset signal of +1.5MHZ. Check that it is pulled into the standard tuning point. (Perform the channel selection operation.) (3) Receive an offset signal of -1.5MHZ. Check that it is pulled into the standard tuning point. (Perform the channel selection operation again.) Note: Modulation signal should be used at the circle pattern and the color bar signal. Checking circuit (All channel converter can be used) RF
CONVERTER
RF CONVERTER RF
TO ANT
25
2. CHANNEL SELECTION CIRCUIT OPERATION CHECK 2-1 Channel Up/Down Selection Adjustment Preparation (1) Set the TV set so that VHF (11, 13CH), UHF (14, 46, 63CH) and CATV (A, E, P, WCH) can be received. (2) Set Signal Source mode to Antenna on the set up menu. (Press the Menu key, and select Setup, then select Signal Source mode, See next page.) Adjustment Procedure (1) Check that VHF are received correctly by pressing CH Up ( ) or Down ( ) button. Adjustment Preparation (3) Set Signal Source mode to CATV 1. Adjustment Procedure (2) Perform the same operation as in Item (1), and check that VHF and CATV are received correctly. Adjustment Preparation (4) Set Signal Source mode to CATV 2. Adjustment Procedure (3) Perform the same operation as in Item (1), and check that VHF and CATV are received correctly. Note: This check should be done to both ANT A and B. (32UX01S and 36UX01S models)
2-2 CH Up/Down Adjustment Preparation (1) Set the TV set so that VHF (11, 13CH), UHF (14, 46, 63CH) and CATV (A, E, P, W CH) can be received. Adjustment Procedure (1) Set Signal Source mode to Antenna on the SET UP menu. (2) Select Auto CH set mode and press ( ) key on the set up menu. After Auto CH set, operation is completed. By pressing the channel Up ( ) or Down ( ) button, check that the channels having broadcast signal (s) can be received. (3) Set Signal Source mode to CATV 1. (4) Perform the same operation as in Item (2) and check that CATV can be received correctly.
ID FAV
SET UP CUSTOM VIDEO AUDIO THEATER
ME N U LAN GU AGE SIGN A L SOU R C E AU TO C H AN N E L SE T C H AN N E L ME MORY C H AN N E L LIS T C LOC K SE T
A N TE N N A C ATV 1 C ATV 2
MENU TO MENU BAR
TO QUIT
EXIT
26
SET UP MENU Adjustment Preparation (2) Set the CHANNEL LIST mode (in SET UP menu). Note: CATV channels, actual input channels numbers and indicated channel numbers shown in Table 3 below. Adjustment Procedure (5) Check that the item of SCAN of channels which can be selected as above is ON. Note 1: CATV channels, actual input channel numbers and indicated channel numbers. A ................................14 E ................................18 P ................................29 W ...............................36
Note 2:
This check should be done to both ANT A and B. (32UX01Snd 36UX01S models) TABLE 3
A 14
B 15
C 16
D E F 17 18 19 MID BAND
G 20
H 21
I 22
J 23
K 24
L 25
M 26
N 27
O P Q R 28 29 30 31 SUPER BAND
S 32
T 33
U 34
V 35
W 36
W+1 W+2 W+3 W+4 W+5 W+6 W+7 W+8 W+9 W+10 W+11 W+12 W+13 W+14 W+15 W+166 W+177 W+188 W+199 W+200 W+211 W+222 W+23 W+1 W+2 W+3 W+4 W+5 W+6 W+7 W+8 W+9 W+10 W+11 W+12 W+13 W+14 W+15 W+1 W+1 W+1 W+1 W+2 W+2 W+2 W+23
37
38
39
40
41
42
43
44
45
46
47 48 49 50 HYPER BAND
51
52
53
54
55
56
57
58
59
W+24 W + 2 5 W + 2 6 W + 2 7 W + 2 8 W + 2 9 W+30 W+31 W+32 W+33 W+34 W+35 W + 3 6 W + 3 7 W + 3 8 W+399 W+400 W+411 W+422 W+433 W+444 W+455 W+46 W + 2 4 W+25 W+26 W+27 W+28 W+29 W + 3 0 W + 3 1 W + 3 2 W + 3 3 W + 3 4 W + 3 5 W+36 W+37 W+38 W + 3 W + 4 W + 4 W + 4 W + 4 W + 4 W + 4 W + 4 6
60
61 62 63 64 HYPER BAND
65
66
67
68
69
70
71
72 73 74 75 ULTRA BAND
A-4 A-4 A-3 A-3 A-2 A-2
76
77
78
79
80
81
82
W+47 W+48 W+49 W+50 W+51 W+52 W+53 W+54 W+55 W + 5 6 W+57 W+58 A-5 W + 4 7 W + 4 8 W + 4 9 W + 5 0 W + 5 1 W + 5 2 W + 5 3 W + 5 4 W + 5 5 W+56 W + 5 7 W + 5 8 A-5
A-1 W+599 W+600 W+611 W+622 W+633 W+64 A-1 W + 5 W + 6 W + 6 W + 6 W + 6 W + 6 4
83
84
85
86
87 88 89 90 ULTRA BAND
91
92
93
94
95
96 97 98 MID BAND
99 100 101 102 103 104 105 ULTRA BAND
W+65 W+66 W+67 W+68 W+69 W+70 W+71 W+72 W+73 W+74 W+75 W+76 W + 7 7 W+78 W+79 W+800 W+811 W+832 W+833 W+844 W + 6 5 W + 6 6 W + 6 7 W + 6 8 W + 6 9 W + 7 0 W + 7 1 W + 7 2 W + 7 3 W + 7 4 W + 7 5 W + 7 6 W+77 W + 7 8 W + 7 9 W + 8 W + 8 W + 8 W + 8 W + 8
106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 ULTRA BAND
27
2-3 VOLUME UP/DOWN Adjustment Procedure (1) Check that the volume level and volume indication is going up or down simultaneously by pressing volume Up ( ) or Down ( ) button. Volume 10
2-7 MENU MODE (using Remo-con) 2-7-1 Set Up Mode Adjustment Preparation (1) Set to CHANNEL MEMORY mode (SET UP Menu). A