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Toshiba 34AX9UH Service Manual
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Toshiba 34AX9UH Service Manual

Toshiba 34AX9UH Service Manual

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FILE NO. 010-200105
SERVICE MANUAL

COLOUR TELEVISION

F1DS Chassis
34AX9UH
34AX9UE
Sep., 2001

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Summary of Contents for Toshiba 34AX9UH

  • Page 1: Colour Television

    FILE NO. 010-200105 SERVICE MANUAL COLOUR TELEVISION F1DS Chassis 34AX9UH 34AX9UE Sep., 2001...

  • 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 ADJUSTMENTS ..........................12 CIRCUIT CHECK ..............................17 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................18 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. The only source of X-RAY RADIATION in this TV receiver 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 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 SERVICE MANUAL. SET-UP ADJUSTMENT (FOR FLAT TUBE) 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 (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 8: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press o button once on 2) Press o button again to 3) While pressing the o button, Remote Control. keep pressing. press MENU button on TV set. Item Data (or SOUND MUTE) (Service mode display) 2.
  • 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 18) 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. Indicated color of mode now selected : Green and Red Indicated color of other modes : White...

  • Page 11: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 1) Select the Service mode. 2) While pressing o(or CALL) button on 3) Press MENU button on TV. Remote and press MENU button on TV. ITEM Press DATA Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0”, “OPT1”, “OPT2”...

  • Page 12: 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 13 ITEM ADJUSTMENT PROCEDURE WIDTH 1. Call up the adjustment mode display, then select the item WID. (WID) 2. Press the ; – /+ button to get the picture so the left and rightedges of raster begins to lack. 3. Press the ; – /+ button to advance the data by 7 steps. Note : Check the horizontal picture position is correct.
  • Page 14 F1DS Series (Reference factory adjustment) Items Settings Input signals Measuring Adjusting Measuring Adjusting methods Adjust- methods methods instruments 2.4V(P-P) SCNT Sub-contract Sub-bright Contrast: MAX TP46R Synchro 1 If SCNT is selected, Y signal ±0.2V(P-P) signal Bright: CNT is transmitted from the Color: CNT (J2CH) monitor output.
  • Page 15 Input/output points Adjusting signals Adjusting conditions and procedures Adjusting parts Adjusting parts Visual adjustment by WG Phillips pattern 1 Conditions: These are to be Cont max, Bright cent, Color Horizontal ampli- patterns (Bus control) cent, and DFS modes after adjusting V.HEIGHT, VERT tude adjustment Adjustment on the Do not use the Phillips...
  • Page 16 THE PIP SCREEN SUB-BRIGHT ADJUSTMENTS [DATA ADJUSTMENTS] 1 Adjustment of minor screen sub-bright Condition) After the completion of main screen adjustments (1) Let both the main and PIP screens receive signal, Domestic 2ch. (2) Select the adjustment item [MWBRC] and adjust the number of collapsed black lines. ±...

  • Page 17: Circuit Check

    CIRCUIT CHECK HIGH VOLTAGE CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps below. 1. Connect an accurate high voltage meter to the second anode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST controls to minimum (zero beam current). 3.

  • Page 18: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 34" HIGH VOLTAGE AT ZERO BEAM: 32.8 kV MAX HIGH VOLTAGE: 33.4 kV AC VOLTAGE 110~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Name of adjustment Data Item Name of adjustment...

  • Page 19: Location Of Controls

    LOCATION OF CONTROLS Front ON-TIMER indicator (green) I POWER indicator (red) Behind the door Remote sensor L/MONO S-VIDEO VIDEO AUDIO MENU MENU t ; s Volume down/up t c s I POWER switch a (3) Video 3 input Headphones jacks a (TV/VIDEO) terminals (ø3.5 mm)
  • Page 20 Sound menu The color TV/color projection TV of model Selectable sound CT-90089 used general remote control of TOSHIBA color TV/color projection TV. The 8 buttons in remote control are not function button. If you prees any of Channel position st the buttons, the TV has no response.

  • Page 21: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY • First, use the ASM (Automatic Search Memory) function to preset all the active channels in your area automatically. Then, arrange the preset channels with the MANUAL SEARCH (SEARCH or >>>), MFT (Manual Fine Tuning) and SKIP functions so that you can tune into only desired channels. •...
  • Page 22 • Use the MANUAL SEARCH (SEARCH or >>>) function if desired channels cannot be preset with the ASM or if you would like to preset channels to specific position numbers one by one. • It is convenient to set the channel numbers to the same position numbers using MANUAL SEARCH (SEARCH or >>>) and SKIP functions.

  • Page 23: Circuit Block Diagram

    – 23 –...

  • Page 24: 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 : 34AX9UH/34AX9UE Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • 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 C473 24073081 ELECTROLYTIC, 50V 1.OUF M 3A...
  • 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 C869 24086937 ELECTROLYTIC, 450V 120UF M 22D...
  • 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 CD106 24539104 PLASTIC FILM, 50V 0.1UF J CV73...
  • 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 R362 24366103 CARBON FILM, 1/6W 10K 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 R718 24366222 CARBON FILM, 1/6W 2.2K OHM J...
  • 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 R960 24383153 OXIDE METAL FILM, 2W 15K OHM J...
  • Page 31 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 RB03 24366101 CARBON FILM, 1/6W 100 OHM J...
  • Page 32 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 RV25 24366102 CARBON FILM, 1/6W 1K OHM J...
  • Page 33 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 LY103 23238506 COIL, PEAKING, TRF4229AJ...
  • Page 34 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 Q837 23205085 TRANSISTOR, VCEO=50V IC=150MA...
  • Page 35 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 D306 23118859 DIODE, 1SS133...
  • Page 36 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 B801A 23037312 SCREW, BTBW3X12SZN P801A...
  • Page 37 CERAMIC DISC, 50V B 1500PF K K902 23306425 REMOCON HAND UNIT, CT-90089 C341 24567104 PLASTIC FILM, 50V 0.1UF J Y101 23565333 OWNERS MANUAL, ENG/CAN, 34AX9UH C350 24214122 CERAMIC DISC, 500V B 1200PF K Y109 23945015 BAG, POLYETHYLENE COVER 250X400 C351 24591102...
  • Page 38 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 C530 24797010 ELECTROLYTIC CE04G 50V 1.0UF M...
  • Page 39 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 C902 24092353 CERAMIC DISC, 2KV 4700PF K...
  • Page 40 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 CD126 24590822 PLASTIC FILM, 50V 8200PF J CV64...
  • Page 41 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 R360 24011223 METAL FILM CHIP 1/20W 22K J...
  • Page 42 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 R715 24366273 CARBON FILM, 1/6W 27K OHM J...
  • Page 43 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 R952 24366622 CARBON FILM, 1/6W 6.2K OHM J...
  • Page 44 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 RB01 24366271 CARBON FILM, 1/6W 270 OHM J...
  • Page 45 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 RT05 24011100 CHIP, METAL FILM, 1/20W 10 OHM J...
  • Page 46 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 L871 23103859 COIL, CHOKE, TEM2011...
  • Page 47 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 Q602 23318413 IC, LA4282...
  • Page 48 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 QD42 A6059430 TRANSISTOR, 2SK372 V...
  • Page 49 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 D837 23118859 DIODE, 1SS133...
  • Page 50 CARTON, SOTOBAKO 34AX9UE SA05 23145227 SWITCH, PUSH, 1C1P 34AX9UE;S1301 SA06 23145227 SWITCH, PUSH, 1C1P A702 23946285 PACKING, PACKING 34AX9UH SJ01 23146958 RELAY, RELAY 2C 1A DC12V OMRON 34AX9UH;S1301 * SR81 23146573 RELAY, DC12V 0.53W, OMR G5PA-1-M A703 23941660 PACKING, PROTECTIVE SHEET...

  • Page 51: Pc Boards Bottom View

    SIGNAL BOARD PD0319D BOTTOM (FOIL) SIDE – 51 – – 52 –...
  • Page 52 POWER BOARD PD0320A BOTTOM (FOIL) SIDE – 53 – – 54 –...
  • Page 53 DEF BOARD PD0322B BOTTOM (FOIL) SIDE – 55 – – 56 –...
  • Page 54 CONTROL BOARD PD0323A-1 LED BOARD PD0323A-2 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE BEP BOARD PD0324A SUB POWER BOARD PD0321A BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE – 57 – – 58 –...
  • Page 55 BACK/T BOARD PD0312A BOTTOM (FOIL) SIDE – 59 –...
  • Page 56 CRTD-VM BOARD PB9718H BOTTOM (FOIL) SIDE – 60 –...
  • Page 57 WOW BOARD PD0325A BOTTOM (FOIL) SIDE – 61 –...

  • Page 58: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752 2SA1788 2SC752GTM (old) 2SD1763A 2SC2482 2SA562TM 2SC1569 2SC5243 2SC2655 2SA1015 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 ON4409 RN2203 2SD1554 RN2201 2SD2253 RN2004 2SD1556 2SC5143 RN1203 RN1204 2SD2553 RN2204 2SC5570 RN1205 RN1202 RN1201...
  • Page 59 SPECIFICATIONS g 110 V – 240 V, 50/60 Hz Rated voltage Power consumption 200W (Approx) (at g 220 V, 50 Hz) Dimensions 832 mm × 564 mm × 693 mm (Width × Depth × Height) Mass 74.0 kg (Approx) Type 34, flat super crystal picture tube Picture tube (85 cm) overall picture tube measured diagonally (80 cm) viewable picture measured diagonally...

  • Page 60: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 34AX9UH / 34AX9UE 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 61 34AX9UH 34AX9UE...
  • Page 62 SUB POWER 34AX9UH 34AX9UE...

  • Page 63: Specifications

    SRS-WOW 34AX9UH 34AX9UE...
  • Page 64 SCHEMATIC DIAGRAM MODEL : 34AX9UH / 34AX9UE NOTE: WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. 1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5% 4.
  • Page 72 POWER 34AX9UH 34AX9UE...
  • Page 73 LED/CONTROL 34AX9UH 34AX9UE...
  • Page 81 LED/CONTROL 34AX9UH 34AX9UE...
  • Page 82 SIGNAL 34AX9UH 34AX9UE...
  • Page 90 SIGNAL 34AX9UH 34AX9UE...
  • Page 91 34AX9UH 34AX9UE...
  • Page 99 34AX9UH 34AX9UE...
  • Page 100 BACK/T, CRTD-VM 34AX9UH 34AX9UE...
  • Page 108 BACK/T, CRTD-VM 34AX9UH 34AX9UE...
  • Page 109 TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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