Toshiba 34HX83 Service Manual
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Toshiba 34HX83 Service Manual

Toshiba 34HX83 Service Manual

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FILE NO. 070-200333

SERVICE MANUAL

COLOR TELEVISION
N3WS Chassis
34HX83
(TAC0321)
DOCUMENT CREATED IN JAPAN, Jan., 2004

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Summary of Contents for Toshiba 34HX83

  • Page 1: Service Manual

    FILE NO. 070-200333 SERVICE MANUAL COLOR TELEVISION N3WS Chassis 34HX83 (TAC0321) DOCUMENT CREATED IN JAPAN, Jan., 2004...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................3 SET-UP ADJUSTMENT ............................4 SERVICE MODE ..............................6 ELECTRICAL ADJUSTMENTS ..........................9 CIRCUIT CHECKS ..............................11 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................12 LOCATION OF CONTROLS ........................... 13 ADDING CHANNELS TO THE TV'S MEMORY ......................

  • 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 hazardous 2. This receiver is equipped with a Fail Safe (FS) circuit which 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 SERVICE MANUAL. SET-UP ADJUSTMENT FOR FLAT TUBE I 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 (5)Adjust the sub-4-pole magnets only in case there is any deviation of Xv bow-shaped convergence. (To be usually set at the initial position) Align both sides with the sub-4-pole magnets and minimize the deviation of blue and red with the main 4-pole magnets. Xv bow-shaped deviation of convergence red/blue blue...

  • Page 6: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press MUTE button twice 2) Press MUTE button 3) While pressing the MUTE button, on Remote Control. again to keep pressing. press MENU button on TV set. 1/2 MUTE MUTE (Service mode display) 2.
  • Page 7 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 12) 5.
  • Page 8 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 9: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 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 10 ITEM ADJUSTMENT PROCEDURE E-W PARABOLA (DPC) 1. Call up the adjustment mode display, then select the item PARA. (PARA) 2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears on the screen. 3. Press the VOLUME s or t button to make vertical lines straight as shown below. HORIZONTAL POSITION 1.

  • Page 11: 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 below. Check that the set returns to normal operation when pin 12 1.

  • Page 12: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 34" HIGH VOLTAGE AT ZERO BEAM: 30.0 kV MAX HIGH VOLTAGE: 35.0 kV Table-1 SERVICE MODE ADJUSTING ITEMS AND DATA IN THE SERVICE MODE: NORMAL NORMAL Preset Item Name of adjustment Preset Item Name of adjustment...

  • Page 13: Location Of Controls

    LOCATION OF CONTROLS TV Front Remote sensor MENU ; : ts Power indicator L/MONO MENU TV/VIDEO VOLUME CHANNEL POWER S-VIDEO VIDEO AUDIO VIDEO-3 IN MENU Video 3 TV/VIDEO Channel ts Video/Audio inputs POWER Volume ; : (behind the door) TV Rear ANT OUT ANT-2 IN DV/HDCP IN...

  • Page 14: Remote Control

    Remote Control POWER TV / VIDEO RECALL POWER INFO INFO (CBL/SAT only) Channel Numbers (0-9) CHRTN +10 (DVD only) GUIDE (CBL/SAT only) TOP MENU (DVD only) 89; : (DVD only) MENU DVDMENU ENTER CLEAR (DVD only) Device Switch CBL/SAT CH 89 POP DIRECT CH MUTE SLEEP PAUSE...

  • Page 15: Adding Channels To The Tv's Memory

    ADDING CHANNELS TO THE TV’S MEMORY When you press Channel 8 or 9, your TV will stop only on the channels stored in the TV’s channel memory. Follow the steps below to program all active channels into the TV’s memory. Programming channels automatically Your TV can automatically detect all active channels in your Press 8 or 9 to highlight ADD/ERASE.

  • Page 16: 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 : 34HX83 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 17 Location Location Parts No. Description Parts No. Description * C812 C529 24109103 CERAMIC CHIP, 50V B 0.01UF K 24092583 CERAMIC DISC, AC250V E 2200PF M C533 24100104 CERAMIC CHIP, 25V F 0.1UF Z * C815 24092591 CERAMIC DISC, AC250V B 470PF K C534 24100104 CERAMIC CHIP, 25V F 0.1UF Z...
  • Page 18 Location Location Parts No. Description Parts No. Description C914 24092398 CERAMIC DISC, 25V 0.1UF Z, CA31 24092538 CERAMIC CHIP, 10V F 1UF Z 24092398A NI TOOITSU CA33 24100103 CERAMIC CHIP, 50V F 0.01UF Z C918 24092398 CERAMIC DISC, 25V 0.1UF Z, CA34 24092538 CERAMIC CHIP, 10V F 1UF Z...
  • Page 19 Location Location Parts No. Description Parts No. Description CI10 24105180 CERAMIC CHIP, 50V CH 18PF J CV09 24092621 CERAMIC CHIP, 10V B 1UF K CI11 24105270 CERAMIC CHIP, 50V CH 27PF J CV10 24794100 ELECTROLYTIC, 16V 10UF M CI12 24797478 ELECTROLYTIC, 50V 0.47UF M CV11 24092621...
  • Page 20 Location Location Parts No. Description Parts No. Description CY514 24092730 CERAMIC CHIP, 16V B 0.1UF K R402 24011103 CHIP, METAL FILM, 1/20W 10K OHM J CY515 24092730 CERAMIC CHIP, 16V B 0.1UF K R403 24011272 CHIP, 1/20W 2.7K OHM J CY516 24109103 CERAMIC CHIP, 50V B 0.01UF K R405...
  • Page 21 Location Location Parts No. Description Parts No. Description R611 24871222 CHIP, METAL FILM, 1/8W 2.2K OHM J R838 24011152 CHIP, METAL FILM, 1/20W 1.5K OHM J R612 24011103 CHIP, METAL FILM, 1/20W 10K OHM J R840 24552562 OXIDE METAL FILM, 1/2W 5.6K OHM J R613 24871222 CHIP, METAL FILM, 1/8W 2.2K OHM J...
  • Page 22 Location Location Parts No. Description Parts No. Description R964 24568472 CERAMIC COVERED, 7W 4.7K OHM J R4410 24011103 CHIP, METAL FILM, 1/20W 10K OHM J R965 24568472 CERAMIC COVERED, 7W 4.7K OHM J R4413 24011561 CHIP, METAL FILM, 1/20W 560 OHM J R966 24366331 CARBON FILM, 1/6W 330 OHM J...
  • Page 23 Location Location Parts No. Description Parts No. Description RA40 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RB82 24011123 CHIP, METAL FILM, 1/20W 12K OHM J RA41 24011332 CHIP, METAL FILM, 1/20W 3.3K OHM J RB83 24011123 CHIP, METAL FILM, 1/20W 12K OHM J RA42 24011151 CHIP, METAL FILM, 1/20W 150 OHM J...
  • Page 24 Location Location Parts No. Description Parts No. Description RJ03 24366512 CARBON FILM, 1/6W 5.1K OHM J RS64 24011393 CHIP, METAL FILM, 1/20W 39K OHM J RJ05 24310159 OXIDE METAL FILM, 1/2W 1.5 OHM J RS65 24011563 CHIP, METAL FILM, 1/20W 56K OHM J RJ06 24382471 OXIDE METAL FILM, 1W 470 OHM J...
  • Page 25 Location Location Parts No. Description Parts No. Description RV82 24011562 CHIP, METAL FILM, 1/20W 5.6K OHM J RY543 24011152 CHIP, METAL FILM, 1/20W 1.5K OHM J RV100 24366750 CARBON FILM, 1/6W 75 OHM J RY545 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RV101 24366750 CARBON FILM, 1/6W 75 OHM J RY548 24011102...
  • Page 26 Location Location Parts No. Description Parts No. Description L885 23248288 COIL, CHOKE, TLN3299GH LY291 23103824 COIL, FILTER, TEM2028K L886 23103145 FERRITE CHOKE, TEM2011AA LY292 23103824 COIL, FILTER, TEM2028K L887 23103145 FERRITE CHOKE, TEM2011AA LY501 23246398 COIL, CHIP INDUCTOR 10MMH K, L888 23248292 COIL, CHOKE, TLN3499GH...
  • Page 27 Location Location Parts No. Description Parts No. Description Q711 23314909 TRANSISTOR, 2SA1837 QB05 23314993 TRANSISTOR, 2SC4081 Q Q712 23314912 TRANSISTOR, 2SC4793 QB11 23114528 TRANSISTOR, 2SC1740S Q719 23114433 TRANSISTOR, 2SC1815-Y QB14 23314993 TRANSISTOR, 2SC4081 Q Q720 23114433 TRANSISTOR, 2SC1815-Y QB15 23314993 TRANSISTOR, 2SC4081 Q * Q801 23135013...
  • Page 28 Location Location Parts No. Description Parts No. Description QY516 23314994 TRANSISTOR, 2SA1576A106 D801B 70391356 SCREW, BITTB3X10 SZN QY518 23314993 TRANSISTOR, 2SC4081 Q D834 23316269 DIODE, AK04 QY520 23314993 TRANSISTOR, 2SC4081 Q D835 23316637 DIODE, SCHOTTKY, FMB-G14L D101 23316755 DIODE, ZENER, MTZJ33C D835B 70391355 SCREW, BIND HEAD TAP-TITE B, D230...
  • Page 29 Location Location Parts No. Description Parts No. Description DB05 23118538 DIODE, ZENER, RD6.2ESA B2 G923 24366560 CARBON FILM, 1/6W 56 OHM J DB30 23316231 DIODE, 1SS355 G924 23118859 DIODE, 1SS133 DB30 23316792 DIODE, SC215 G925 23118859 DIODE, 1SS133 DB31 23118859 DIODE, 1SS133 G941 24366560...
  • Page 30 PV02 23365819 JACK, 1S3P A303 23929657 PIECE, HOLDER BUTTON PV02 23023096 JACK, PIN 10P SMK, LAP5120-0401FC A701 23067439 CARTON, CARTON, 34HX83 PV05 23023095 JACK, PIN 8P SMK, LAP5120-0411FC A703 23946638 PACKING, TOP PACKING S601 23344456 SWITCH, SLIDE SK22F28G9A MORNI A708...

  • Page 31: Pc Boards Bottom View

    SIGNAL BOARD PD1086C BOTTOM (FOIL) SIDE – 32 – – 31 –...
  • Page 32 POWER/DEF BOARD PD1087 BOTTOM (FOIL) SIDE – 33 – – 34 –...
  • Page 33 CONT BOARD PD1088-1 BOTTOM (FOIL) SIDE – 35 – – 36 –...
  • Page 34 LED BOARD PD1088-2 VERT BOARD PD1090 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE AC-IN BOARD PD1091 BOTTOM (FOIL) SIDE IF BOARD PD1022B BOTTOM (FOIL) SIDE – 37 – – 38 –...
  • Page 35 CRT-D/SVM BOARD PD1089 BOTTOM (FOIL) SIDE – 39 –...

  • Page 36: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SA1015 2SC2655 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 2SD1554 ON4409 RN2203 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143 RN1204 2SC5570 RN2204 2SD2553 RN1205 RN1202 RN1201...

  • Page 37: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 34HX83 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
  • Page 38 – 42 –...

  • Page 39: Specifications

    SPECIFICATIONS Television System Dimensions NTSC standard Width 36-13/16 inches (935 mm) Height 24-39/64 inches (625 mm) Channel Coverage Depth 23-25/32 inches (604 mm) VHF: 2 through 13 UHF: 14 through 69 Mass Cable TV: Mid band (A-8 through A-1, A through I) 75.7kg Super band (J through W) Hyper band (AA through ZZ, AAA, BBB)
  • Page 40 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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