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Toshiba 36AF61 Service Manual

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FILE NO. 020-200110

SERVICE MANUAL

COLOR TELEVISION
N1F Chassis
36AF61
(TAC0120)
PUBLISHED IN JAPAN. Jul., 2001 So

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  Summary of Contents for Toshiba 36AF61

  • Page 1: Service Manual

    FILE NO. 020-200110 SERVICE MANUAL COLOR TELEVISION N1F Chassis 36AF61 (TAC0120) PUBLISHED IN JAPAN. Jul., 2001 So...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................... 3 SET-UP ADJUSTMENT ..............................4 SERVICE MODE ................................8 DESIGN MODE ................................11 ELECTRICAL ADJUSTMENT ............................12 CIRCUIT CHECKS ................................ 16 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ............................. 17 LOCATION OF CONTROLS ............................
  • Page 3: Chapter 1 General Adjustments

    CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazard- 2. This receiver is equipped with a Fail Safe (FS) circuit which ous X-RAY RADIATION.
  • Page 4: Set-Up Adjustment

    WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. SET-UP ADJUSTMENT (FOR 13”, 14”, 19”, 20”) The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 5 CONVERGENCE ADJUSTMENTS CIRCUMFERENCE CONVERGENCE ADJUSTMENT NOTE: Before attempting any convergence adjustments, the 1. Loosen the clamping screw of deflection yoke slightly to receiver should be operated for at least fifteen min- allow the yoke to tilt. utes. 2. Temporarily put a wedge as shown in figure 1. (Do not remove cover paper on adhesive part of the wedge.) CENTER CONVERGENCE ADJUSTMENT 3.
  • Page 6 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. (FOR 35”, 36”) The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 7 CONVERGENCE ADJUSTMENTS 4-POLE NOTE: Before attempting any convergence adjustments, MAGNETS the receiver should be operated for at least fifteen 6-POLE minutes. MAGNETS CENTER CONVERGENCE ADJUSTMENT 1. Display built-in cross-dot pattern using the TEST SIG- NAL SELECTION function. 2. Adjust the BRIGHTNESS and CONTRAST Controls for well defined pattern.
  • Page 8: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press MUTE button once 2) Press MUTE button 3) While pressing the MUTE button, on Remote Control. again to keep pressing. press MENU button on TV set. MUTE (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV.
  • Page 9 4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 17) 5.
  • Page 10 8. SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. SELF CHECK NO.
  • Page 11: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 3) Press MENU button on TV. 1) Select the Service mode. 2) While pressing RECALL button on Remote and press MENU button on TV. Item Press Data Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0”, “OPT1” and “OPT2” of DESIGN MODE are set to the data of the representative model of this chassis family.
  • Page 12: Electrical Adjustment

    ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE FOCUS VR ADJ 1. Enter the service mode, then select any register item. 2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern ap- pears on the screen. 3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture screen.
  • Page 13 ITEM ADJUSTMENT PROCEDURE HORIZONTAL POSITION 1. Call up the adjustment mode display, then select the item HPOS or VPOS. (HPOS) 2. Press the TV/VIDEO button on Remote until the VERTICAL POSITION white cross-bar or black cross-bar pattern appears (VPOS) on the screen. 3.
  • Page 14 MTS ADJUSTMENT (FOR N1F CHASSIS) ITEM INPUT SIGNAL ADJUSTMENT PROCEDURE STEREO VCO • No signal 1. Display item STVC, and connect pin 9 of (STVC) H002 to ground. 2. Connect frequency counter to pin 12 of H002. 3. Change data by Volume s/t buttons so that the reading of counter becomes value as close as 4fH (62.936kHz).
  • Page 15 MTS ADJUSTMENT (FOR N0ES CHASSIS) ITEM INPUT SIGNAL ADJUSTMENT PROCEDURE • 1kHz 30% mod. → ANT ATTENUATOR 1. Connect rms meter to pin 34 of QG01. (ATT) terminal 2. Display item ATT on screen. 3. Change data by VOLUME s/t buttons so that the reading of meter becomes value as close as 137mVrms.
  • Page 16: Circuit Checks

    CIRCUIT CHECKS HIGH VOLTAGE CHECK Troubleshooting Guide for Fail Safe Circuit CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps Check that the set returns to normal operation when pin 12 below. of Z801(or emitter of Q472) is grounded with jumper wire.
  • Page 17: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 36" HIGH VOLTAGE AT ZERO BEAM: 31.9kV MAX HIGH VOLTAGE: 34.1kV Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Name of adjustment Preset 36" Item Name of adjustment Preset 36"...
  • Page 18: Location Of Controls

    LOCATION OF CONTROLS Front DEMO MENU TV/VIDEO VOLUME CHANNEL VIDEO-3 IN AUDIO VIDEO L/MONO INSIDE DOOR POWER MENU Remote VIDEO-3 IN DEMO TV/VIDEO VOLUME CHANNEL sensor T / S t/ s POWER Rear ANT (75Ω) ANT1 ANT2 DVD IN S-VIDEO COLOR STREAM INPUT...
  • Page 19: Remote Control

    Remote Control RECALL LIGHT RECALL POWER LIGHT POWER TV/CABLE switch MUTE TV/VIDEO TIMER CABLE Set to “TV” to control the TV. TIMER MUTE TV/VIDEO CHANNEL s/t Channel Number VOLUME s/t CH RTN CH RTN C. CAPT ADV/ MENU PIP CH ENTER PIP CH s FAV t...
  • Page 20: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY The channel memory is the list of TV channel numbers your TV will stop on when you press the CHANNEL s or t button. First, use the TV/CABLE and CH PROGRAM functions to preset all active channels in your area automatically. If necessary, arrange the preset channels with the ADD/ERASE functions so that you can tune into only desired channels.
  • Page 21: Circuit Block Diagram

    – 21 –...
  • Page 22: Chassis And Cabinet Replacement Parts List

    • The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. • The PC board assembly with mark is no longer available after the end of the production. Model : 36AF61 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 23 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description C465 24212472 CERAMIC DISK CK45 B 50V 4700PF K...
  • Page 24 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description CG61 24797220 ELECTROLYTIC CE04G 50V 22UF M...
  • Page 25 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R317 24366102 CARBON FILM, 1/6W 1K OHM J...
  • Page 26 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R835 24552471 OXIDE METAL FILM, 1/2W 470 OHM J...
  • Page 27 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RA33 24366103 CARBON FILM, 1/6W 10K OHM J...
  • Page 28 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RV62 24366750 CARBON FILM, 1/6W 75 OHM J...
  • Page 29 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Q712 A6369650 TRANSISTOR, 2SC4793...
  • Page 30 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description D845 23118859 DIODE, 1SS133...
  • Page 31 REMOTE CONTROL TRANSMITTER, CT-9946 Y101 23565243 OWNER’S MANUAL, ENGLISH 27AF61 Y101F 23565244 OWNER’S MANUAL, FRENCH 27AF61 CABINET PARTS A201 23540705 COVER, FRONT COVER ASSEMBLY 36AF61 A213 23427976 DOOR, DOOR 32AF41 A214 23451976 PUSH CATCH, CLICK A401 23007664 OTHER BLOCK, BACK CVR 36AF60...
  • Page 32 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 32 –...
  • Page 33: Pc Boards Bottom View

    SIGNAL BOARD PD0155 BOTTOM (FOIL) SIDE – 33 – – 34 –...
  • Page 34 POWER/DEF BOARD PD0154 BOTTOM (FOIL) SIDE – 35 – – 36 –...
  • Page 35 CONTROL-1 BOARD PD0153 BOTTOM (FOIL) SIDE – 37 –...
  • Page 36 CONTROL-2 BOARD PD0152 BOTTOM (FOIL) SIDE – 38 –...
  • Page 37 CRT DRIVE BOARD PB9973 BOTTOM (FOIL) SIDE – 39 –...
  • Page 38 3L DIGI-COMB BOARD PB9398 BOTTOM (FOIL) SIDE – 40 –...
  • Page 39: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SC2655 2SA1015 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 2SD1554 ON4409 RN2203 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SD2553 2SC5143 RN1204 RN2204 RN1205 RN1202 RN1201 –...
  • Page 40 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 42 –...
  • Page 41: Specifications

    SPECIFICATIONS TELEVISION SYSTEM NTSC standard CHANNEL COVERAGE VHF: 2 through 13 UHF: 14 through 69 Cable TV: mid band (A-8 through A-1, A through I) super band (J through W) hyper band (AA through ZZ, AAA, BBB) ultra band (65 through 94, 100 through 125) POWER SOURCE 120V AC, 60Hz AUDIO POWER...
  • Page 42 TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...