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Toshiba 37HL95 Service Manual

Lcd color television
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FILE NO. 020-200514

SERVICE MANUAL

LCD Color Television

37HL95
- 1 -
DOCUMENT CREATED IN JAPAN, July, 2005
Published in Japan, Jul. 2005 (YC)
TOSHIBA CORPORATION 2005

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Summary of Contents for Toshiba 37HL95

  • Page 1: Service Manual

    FILE NO. 020-200514 SERVICE MANUAL LCD Color Television 37HL95 - 1 - DOCUMENT CREATED IN JAPAN, July, 2005 Published in Japan, Jul. 2005 (YC) TOSHIBA CORPORATION 2005...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SERVICE SAFETY PRECAUTIONS ............................ 3 HANDLING THE LCD MODULE ............................5 SERVICE MODE .................................. 7 LAYOUT OF MAJOR BOARDS ............................12 MECHANICAL DISASSEMBLY ............................13 EXPLODED VIEW ................................15 PACKING DISASSEMBLY ..............................17 CHASSIS AND CABINET REPLACEMENT PARTS LIST ....................18 PC BOARDS TOP &...

  • 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: Handling The Lcd Module

    HANDLING THE LCD MODULE Safety Precautions 3. If the panel surface becomes soiled, wipe with cotton or a In the event that the screen is damaged or the liquid crystal soft cloth. If this does not remove the soiling, breathe on (fluid) leaks, do not breathe in or drink this fluid.
  • Page 6 7. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for an extended period of time. 8. Do not store the LCD module below the temperature con- ditions described in the specifications. Failure to do so could result in freezing of the liquid crystal due to cold air or loss of resilience or other damage.

  • Page 7: Service Mode

    SERVICE MODE 1. ENTERING SERVICE MODE 1) Press MUTE button twice on 2) Press MUTE button again and 3) While pressing the MUTE button, Remote Control. keep pressing. press MENU button on TV set. MUTE (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on Remote Control.
  • Page 8 4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL button in the service mode changes the adjustment items in the order of table-2. 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 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 is executed properly. 2) During diagnosis, the following displays are shown. HL95_1489 000000 Firmware :...
  • Page 10 9. VERSION CHECK MODE 1) Press “9” button twice on Remote Control during display of adjustment menu in the service mode. The version of main MPU will begin to check. 2) During Version Check, the following displays are shown. HL95_1489 (U15) 74 00 01 25 00 00 00000155 SHP-37...
  • Page 11 10. STATUS CHECK MODE 1) Press “9” button thrice on Remote Control during display of adjustment menu in the service mode. The status of this model will begin to check. 2) During Status Check, the following displays are shown. EXT1 480i C6 08 10 CE 05 NATURAL...

  • Page 12: Layout Of Major Boards

    LAYOUT OF MAJOR BOARDS U102A RF-SW TIF BOARD U103A SIGNAL BOARD U101A AV TERMINAL BOARD U811 POWER BOARD U101D KEY BOARD U101B FRONT AV BOARD U101C LED BOARD U812 AC-IN BOARD U104A SEINE FOR FPD BOARD U105A D-TUNER BOARD U101E PC-IN BOARD - 12 -...

  • Page 13: Mechanical Disassembly

    MECHANICAL DISASSEMBLY 1. Remove the stand (foot) and back cover. A450 PP3 × 8 BITTB4 × 16 SBN + SW + W SBN × 10 × 5 A445 A401 PP5 × 16 + SW + W SBN × 5 A420 2.
  • Page 14 3. Remove the boards (AV TERMINAL, SIGNAL, SEINE FOR FPD, D-TUNER, POWER, AC-IN) and speaker. PP4 × 20 + SW + W SBN × 2 UF03 PP3 × 8 PP3 × 8 + SW + W ECO PP3 × 8 + SW + W ECO PP3 ×...

  • Page 15: Exploded View

    EXPLODED VIEWS 1. Chassis Block BITTB4 × 16 SBN × 10 PP3 × 8 + SW + W SBN A450 × 5 A445 A401 PP3 × 8 + SW + W ECO × 3 H001 U102A PP3 × 8 U101E + SW + W SBN PP3 ×...

  • Page 16: Main Block

    2. Main Block PP4 × 20 + SW + W SBN × 2 UF03 PP3 × 8 + SW + W ECO PP3 × 8 + SW + W ECO × 5 × 4 PP08 PP3 × 8 + SW + W ECO PP3 ×...

  • Page 17: Packing Disassembly

    PACKING DISASSEMBLY A705 A701A A705 A702A A702A Y170 K902 Y102 A702B A709 A702B A701B - 17 -...

  • Page 18: 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 : 37HL95 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 19 Location Location Parts No. Description Parts No. Description C6615 76797229 ELECTROLYTIC, 50V 2.2UF M R111 76011391 CHIP, 1/20W 390 OHM J C6616 76797229 ELECTROLYTIC, 50V 2.2UF M R113 76000445 CHIP JUMPER, 1608TYPE C6617 76797100 ELECTROLYTIC, 50V 10UF M R114 76000445 CHIP JUMPER, 1608TYPE C6620 76797100...
  • Page 20 Location Location Parts No. Description Parts No. Description R4102 76011471 CHIP, 1/20W 470 OHM J RB09 76011470 CHIP, 1/20W 47 OHM J R4103 76011681 CHIP, 1/20W 680 OHM J RB10 76011331 CHIP, 1/20W 330 OHM J R4104 76011102 CHIP, 1/20W 1K OHM J RB15 76011471 CHIP, 1/20W 470 OHM J...
  • Page 21 Location Location Parts No. Description Parts No. Description RV23 76000445 CHIP JUMPER, 1608TYPE Q851 23205446 TRANSISTOR, 2SC2412K, Q T146 RV25 76011750 CHIP, 1/20W 75 OHM J Q852 23205446 TRANSISTOR, 2SC2412K, Q T146 RV26 76011750 CHIP, 1/20W 75 OHM J Q853 23205443 TRANSISTOR, 2SA1162-Y(F) RV27...
  • Page 22 Location Location Parts No. Description Parts No. Description DB01 23358606 DIODE, LED RED, SLR-56VC3FPQ FE99 23144709 FUSE, AXIAL 125V 1.5A DB04 23358605 DIODE, LED GREEN, SLR-56MC3FPQR GE50 23103302 FERRITE CHOKE, TEM2011AH DB20 23357406 DIODE, ZENER, UDZS5.6B GE51 76000445 CHIP JUMPER, 1608TYPE DB22 23357703 DIODE, 1SS355...
  • Page 23 REMOCON HAND UNIT IR, DTVUSA CT-90235 Y102 23566785 OWNERS MANUAL, FRENCH 37HL95 Y170 23845800 HOLDER, WIRE, NYLON66 D6.8 CABINET PARTS A201 23533419 COVER, FRONT BEZEL ASSY 37HL95 A240 23717267 SCREW, BITTB4X16 SBN A315 23528412 HOLDER, AC HLD BASE USA/JPN A320 23940410 PIECE, FRONT AV ASSY...

  • Page 24: Pc Boards Top & Bottom View

    R122 C125 R113 Q102 R121 C123 R120 GR03 C121 R111 R114 C1102 R6625 R6627 R6635 R6639 Q6604 DV08 GRV76 R674 R675 RV78 R6602 R673 D678 R6651 Q664 Q652 R679 Q653 D675 R6615 Q651 R6654 Q6601 R6650 RV600 R6644 R6640 R6643 DE95 DE21 RE91...
  • Page 25 RB09 CB04 RB22 RB10 RR01 RR02 RR03 GR34 DR05 DR04 R687 R688 R689...
  • Page 26 RF-SW TIF BOARD PD2190A1 (U102A) BOTTOM (FOIL) SIDE DS-7209 23547843 L110 C164 GR04 L102 D101 D101 C118 GR05 R165 R161 R110 R161 R111 R114 R168 R111 C162 R168 R113 GR03 R115 Q102 R115 GR03 R112 L105 R112 C190 R103 C190 R105 R104 Q101...
  • Page 32 DE12 DE17 DE19 DE08 L804 D811 RE17 RE13 D812 DE16 C820 CE12 DE13 R812 C819 DE14 R814 R806 R813 DE07 D810 R803 R807 CE17 C815 RE18 L803 C810 C804 FE01 250V F3.15AL CE18 DE11 CE15 RE05 CE24 LE12 C823 CE24 C803 P890 R816...
  • Page 33 Q855 R853 R854 Q851 Q852 T801...

  • Page 34: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 37HL95 WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "SERVICE SAFETY PRECAUTIONS" ON PAGE 3 OF THIS MANUAL. 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: CONNECTOR ..............................1/122 AV_JACK ................................2/122 AUDIO_OUT ..............................3/122 REGULATOR ..............................4/122 FRONT-AV ................................. 5/122 LED_RMT ................................. 6/122 KEY ................................... 7/122 PC-IN BOARD ..............................8/122 CONNECTOR(POWER_BOARD) ........................9/122 MAIN_POWER(POWER_BOARD) ......................... 10/122 SUB_POWER(POWER_BOARD) ........................11/122 AC-INPUT ............................... 12/122 RF-SW &...
  • Page 36 SEINE FOR FPD M-SYSTEM(NANDFLASHROM) [SHEET-7] ..56/122 [SHEET-8] ..57/122 GLINK IR-OUT [SHEET-9] ..58/122 CLOCK GEN. [SHEET-10] ..59/122 USB I/F [SHEET-11] ..60/122 UART0 INTERFACE [SHEET-12] ..61/122 EJTAG CONNECTOR [SHEET-13] ..62/122 SEINE PCI BUS [SHEET-14] ..63/122 MPU POWER [SHEET-16] ..
  • Page 37 SEINE FOR FPD DDR 1 [SHEET-902] .. 109/122 DDR 2 [SHEET-903] .. 110/122 DDR 3 [SHEET-904] .. 111/122 DDR 4 [SHEET-905] .. 112/122 DDR POWER [SHEET-906] .. 113/122 TERMINATOR [SHEET-907] .. 114/122 VCXO [SHEET-941] .. 115/122 SEINE VDD/VSS [SHEET-950] .. 116/122 SIGNAL CONNECTOR [SHEET-960] ..
  • Page 38 - 47 -...

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