Toshiba 42WP46P Service Manual
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Toshiba 42WP46P Service Manual

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FILE NO. 030-200418
SERVICE MANUAL
Plasma Color Television
42WP46P
Published in Japan, Oct. 2004 (YC)

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  • Page 1 FILE NO. 030-200418 SERVICE MANUAL Plasma Color Television 42WP46P Published in Japan, Oct. 2004 (YC)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SERVICE SAFETY PRECAUTIONS ............................ 3 IMPORTANT INFORMATION ............................... 5 CLEANING ................................... 6 SERVICE MODE .................................. 7 DESIGN MODE ..................................10 LOCATION OF CONTROLS ..............................11 LAYOUT OF MAJOR BOARDS ............................13 MECHANICAL DISASSEMBLY ............................14 EXPLODED VIEW ................................17 PACKING DISASSEMBLY ..............................

  • Page 3: Service Safety Precautions

    SERVICE SAFETY PRECAUTIONS • The caution items shown here describe major safety issues and should always be observed. • The meanings of the various indications are as follows. Indicates a hypothetical situation in which service personnel and nearby third parties, or even WARNING end users due to a product defect after the service operation is completed, could possibly be in danger of injury or even death in the event of operational error.
  • Page 4 WARNING • Always advise users to keep children away. There is danger of injury to children from tools, disassembled products, etc. KEEP CHILDREN AWAY • Always disconnect the power plug before starting work whenever power is not required. Failure to disconnect the power plug before starting work can result in electrical shock. UNPULUG •...

  • Page 5: Important Information

    IMPORTANT INFORMATION About Permanent after-image • Due to the characteristics of a plasma screen, if the same image is displayed for an extended period of time, permanent after-image (image retention) in part of the screen may result. As a result of accu- mulative effect, brightness deterioration results.

  • Page 6: Cleaning

    CLEANING Remove the power plug before cleaning. Do not use solvents such as benzine or thinner to clean the TV. – These solvents may distort the cabinet or damage its finish. – If rubber or vinyl products remain in contact with the TV for a long time, a stain may result.

  • Page 7: 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 8 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) 5. ADJUSTING THE DATA 1) Pressing of VOLUME ; +/– button will change the value of data in the range from 00H to FFH. The variable range depends on the adjusting item.

  • Page 9: Input

    The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. WP48_EURO 42WP46P Firmware: Version information of microprocessor In case of file name : WP48_EURO and Version : 1.00 indicates[WP48_EURO_100].

  • Page 10: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 3) The following displays 1) Select the Service mode. 2) While pressing CALL button on Remote and press MENU button on TV. are shown on the screen Press Press WP48_EURO (Design mode) Version information of microprocessor Main tuner information Sub tuner information...

  • Page 11: Location Of Controls

    LOCATION OF CONTROLS Front INPUT 5 (EXT 5) GREEN – On-timer set Power Button RED – Power On Back BRACKET HOLES decoder* video recorder IN/OUT SCART 1 (EXT 1) SCART 2 (EXT 2) SCART 3 (EXT 3) MAINS LEAD SUPPLIED COMPONENT VIDEO INPUT (EXT 4) CONECTING A COMPUTER...
  • Page 12 OK to confirm your selection Teletext control buttons Stereo/Bilingual reception Bass Boost/Super Woofer To select mode To mute the sound When in TV mode: When using a TOSHIBA VCR or DVD: Time display press to PAUSE When in Teletext mode: press to EJECT...

  • Page 13: Layout Of Major Boards

    LAYOUT OF MAJOR BOARDS U001C PCB KEY U003A PCB SCALER U002A PCB LOWB-AOUT U800 UNIT, POWER SWITCHING U001B PCB FRONT-AV U001E PCB POWER-SW U001A PCB SIGNAL U001D PCB LED/RMT - 13 -...

  • Page 14: Mechanical Disassembly

    MECHANICAL DISASSEMBLY 1. Remove the stand (foot). A410 PP6 × 35 × 2 PP6 × 35 × 2 A403 2. Remove the back cover ass’y and AV cover. PP4 × 8 × 27 BITTB4 × 12 × 14 BITTB3 × 12 × 2 A401 PP4 ×...
  • Page 15 3. Remove the boards (SCALLER, LOEB-AOUT, POWER-SWITCHING), front AV, piece key ass’y and FAN motor. PP3 × 8 × 6 U800 PP3 × 8 × 5 U002A PP4 × 8 × 2 PP4 × 12 × 3 PP3 × 8 × 4 PP4 ×...
  • Page 16 PP5 × 12 × 2 BITTB4 × 12 × 2 5. Remove the display. PP5 × 12 × 3 PP5 × 12 × 2 BITTB4 × 12 × 2 PP5 × 12 × 3 BITTB4 × 20 × 2 BITTB4 × 20 × 2 BITTB4 ×...

  • Page 17: Exploded View

    EXPLODED VIEWS 1. Chassis Block BITTB4 × 12 × 14 A410 PP6 × 35 × 2 PP6 × 35 × 2 BITTB3 × 12 × 2 PP4 × 8 × 27 PP4 × 8 × 6 B205 PP3 × 8 × 4 A401 H001A H001...
  • Page 18 2. Display panel Block PP5 × 12 × 2 BITTB4 × 12 × 2 PP5 × 12 × 3 PP5 × 12 × 2 BITTB4 × 20 × 2 BITTB4 × 12 × 2 PP5 × 12 × 3 BITTB 4 ×...

  • Page 19: Packing Disassembly

    PACKING DISASSEMBLY A705 A701A A705 A702A A702A K902 Y101E A703 K903 Y101 Y170 Y180 Y110 A702B Y109 A702B A701B - 19 -...

  • Page 20: 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 : 42WP46P Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 21 Location Location Parts No. Description Parts No. Description C6073 24100104 CERAMIC CHIP, 25V F 0.1UF Z CS16 24092731 CERAMIC CHIP, 16V B 1UF K C6075 24619313 16V 470UF 16SGV470M8X10.5 CS26 24619100 ELECTROLYTIC, 16V 10UF M C6088 24619313 16V 470UF 16SGV470M8X10.5 CS39 24092573 CERAMIC CHIP, 16V B 0.47UF K...
  • Page 22 Location Location Parts No. Description Parts No. Description CV47 24092538 CERAMIC CHIP, 10V F 1UF Z R677 24011473 CHIP, 1/20W 47K OHM J CV48 24092538 CERAMIC CHIP, 10V F 1UF Z R684 24871229 CHIP, 1/8W 2.2 OHM J CV49 24092538 CERAMIC CHIP, 10V F 1UF Z R685 24871229...
  • Page 23 Location Location Parts No. Description Parts No. Description RB02 24011471 CHIP, 1/20W 470 OHM J RS03 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RB10 24011682 CHIP, METAL FILM, 1/20W 6.8K OHM J RS04 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RB11 24011103 CHIP, METAL FILM, 1/20W 10K OHM J...
  • Page 24 Location Location Parts No. Description Parts No. Description RS79 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RV61 24011103 CHIP, METAL FILM, 1/20W 10K OHM J RS80 24011472 CHIP, 1/20W 4.7K OHM J RV63 24011100 CHIP, METAL FILM, 1/20W 10 OHM J RS81 24011102 CHIP, METAL FILM, 1/20W 1K OHM J...
  • Page 25 Location Location Parts No. Description Parts No. Description LC01 23103828 INDUCTOR, BEAD, TEM2121M QF13 23314993 TRANSISTOR, 2SC4081 Q LC02 23103828 INDUCTOR, BEAD, TEM2121M QF14 23314994 TRANSISTOR, 2SA1576A106 LC03 23103828 INDUCTOR, BEAD, TEM2121M QF15 23314994 TRANSISTOR, 2SA1576A106 LC04 23103828 INDUCTOR, BEAD, TEM2121M QF16 23314993 TRANSISTOR, 2SC4081 Q...
  • Page 26 Location Location Parts No. Description Parts No. Description DB02 23358563 DIODE, LED, SLR-56MC3FPQR GRR02 24000445 CHIP JUMPER, 1608TYPE DB40 23316231 DIODE, 1SS355 GRR03 24000445 CHIP JUMPER, 1608TYPE DR70 23357037 DIODE, ZENER, UDZS5.6B GRR04 24000445 CHIP JUMPER, 1608TYPE DR71 23357037 DIODE, ZENER, UDZS5.6B GRR05 24000445 CHIP JUMPER, 1608TYPE...
  • Page 27 CABINET PARTS P817A 23367072 CONNECTOR, PLUG, NP 2.5MM G JST-EH, B12B-EH-F1A P817B 23367072 CONNECTOR, PLUG, NP 2.5MM G JST-EH, B12B-EH-F1A A201 23532999 COVER, FRONT COVER ASSY 42WP46P P881 23023131 INLET, NOISE FILTER GL-2080FVP-L A212 23940043 PIECE, CAP P SWITCH PH01 23902604...

  • Page 28: Pc Boards Top & Bottom View

    SIGNAL BOARD PD1944A1 (U001A) BOTTOM (FOIL) SIDE GR289 R_VARI L_VARI AV_LINK P517 GR288 RV217 PJ01A PJ02A GR289 RV216 GR288 DR70 P817B RV217 L289 C1802 C1801 RV216 L288 RV58 DR70 QS21 Q612 Q615 P816B D617 R655 R655 RV214 RV213 RV211 RV212 RV215 RV212 D617...
  • Page 29 SIGNAL BOARD PD1944A1 (U001A) TOP (COMPONENT) SIDE L289 RF11 P517 L288 P816B CF31 P817B PJ02A PJ01A CF30 RF07 CV89 GRV65 LV06 LV07 LV28 LV29 LV30 CF42 QF12 LV11 GRV65 CF32 LV37 GRV90 GRV86 LV38 CF29 11 12 GRV35 LV36 LV35 GRV88 LV34 QV19 CF41...
  • Page 30 FRONT AV BOARD PD1944A2 (U001B) KEY BOARD PD1944A3 (U001C) LED/RMT BOARD PD1944A4 (U001D) BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE VIDEO MENU VOL DN VOL UP POS UP POS DN +5V-1 PV61 PV60 SA01 SA03 SA04 SA06 SA02 SA07 E3-L RA73...
  • Page 31 LOWB/A OUT BOARD PD1904G1 (U002A) BOTTOM (FOIL) SIDE D898 D897 D899 R898 R897 R899 C899 C681 R677 P808A D832 C622 R680 PROTECT Q829A R673 R673 CCP-6400 C682 D833 C678 Q829 R676 Q610 23547703 R838 L839 D896 R671 R671 R684 C680 R684 C677 C675...
  • Page 32 SCALER BOARD PD1901G1 (U003A) BOTTOM (FOIL) SIDE - 36 - - 37 -...
  • Page 33 SCALER BOARD PD1901G1 (U003A) TOP (COMPONENT) SIDE - 38 - - 39 -...
  • Page 34 SCHEMATIC DIAGRAM MODEL : 42WP46P 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 35 SCHEMATIC DIAGRAM STRUCTURE: CONNECTION ..................................1/60 SIGNAL (1/12) [SHEET-1/12] ..2/60 (VIDEO SW) [SHEET-2/12] ..3/60 (MSP+BBE) [SHEET-3/12] ..4/60 (AV) [SHEET-4/12] ..5/60 (GAIN) [SHEET-5/12] ..6/60 (TIF) [SHEET-6/12] ..7/60 (AUDIO MUTE) [SHEET-7/12] ..8/60 (AUDIO SW) [SHEET-8/12] ..9/60 (9/12) [SHEET-9/12] ..
  • Page 36 - 42 -...

  • Page 37: Specifications

    SPECIFICATIONS Programme Positions Broadcast systems/channels PAL-I UHF UK21-UK69 Stereo Nicam 2 carrier system PAL-B/G UHF E21-E69 VHF E2-E12, S1-S41 Visible Screen Size 105cm (approx.) SECAM-L UHF F21-F69 VHF F1-F10, B-Q Display 16:9 SECAM-D/K UHF R21-R69 VHF R1-R12 Sound output (at 10% distortion) Main 10W + 10W Video Input PAL, SECAM, NTSC 3.58/4.43...

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