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Toshiba 46HM95 Service Manual

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SERVICE MANUAL
Projection Television
Read First
SUMMARY
46HM95/52HM95 is the same as 62HM95 except for the parts tabled on back of this sheet.
Use this service manual together with the service manual of 62HM95 (File No. 020-200510).
Service Manual 62HM95 is attached.
TOSHIBA CORPORATION 2005
FILE NO. 023-200518
SUPPLEMENT
46HM95
52HM95
Published in Japan Jul. 2005 (YC)
DOCUMENT CREATED IN JAPAN, July, 2005

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  • Page 1 52HM95 Read First SUMMARY 46HM95/52HM95 is the same as 62HM95 except for the parts tabled on back of this sheet. Use this service manual together with the service manual of 62HM95 (File No. 020-200510). Service Manual 62HM95 is attached. Published in Japan Jul. 2005 (YC)
  • Page 2 REPLACEMENT PARTS LIST DIFFERENCES Location Parts No. Description Location Parts No. Description #1 : [46HM95] #2 : [52HM95] COILS & TRANSFORMERS M601B 23103840 FERRITE CORE, TFE1013 M811A 23103778 FERRITE CORE, TFE1008 M811B 23103778 FERRITE CORE, TFE1008 M906A 23103778 FERRITE CORE, TFE1008...
  • Page 4 Service Manual 62HM95 begin here.
  • Page 5 FILE NO. 020-200510 R E V I S I O N 2 SERVICE MANUAL Projection Television 62HM95 TOSHIBA CORPORATION 2005 DOCUMENT CREATED IN JAPAN, Aug., 2005...

  • Page 6: Table Of Contents

    TABLE OF CONTENTS SAFETY INSTRUCTIONS .............................. 3 SERVICE MODE ................................4 SETTING & ADJUSTING DATA ............................9 LAMP UNIT REPLACEMENT ............................10 LIGHT ENGINE REPLACEMANT..........................PARTS REPLACEMENT IN LIGHT ENGINE....................... EXPLODED VIEW ................................ 17 MECHANICAL DISASSEMBLY ............................ 18 CHASSIS REPLACEMENT PARTS LIST ........................19 PC BOARDS TOP AND BOTTOM VIEW ........................

  • Page 7: Safety Instructions

    SAFETY INSTRUCTIONS SAFETY PRECAUTION WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions on this receiver. The following are the necessary precautions to be observed before servicing this chassis. 1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is performed on the receiver.

  • Page 8: Service Mode

    SERVICE MODE 1. ENTERING SERVICE MODE 1) Press MUTE button twice 2) Press MUTE button 3) While pressing the MUTE button, on Remote Control. again and 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 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. Firmware : Version information of microprocessor In case of file name : HM95 and Version : 1401 indicates[HM95_1401].
  • Page 10 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. MAIN MPU : Version information of microprocessor In case of file name : HM95, Version 1401 for Code Program Version and (U15) for OSD Version indicates [HM95_1401(U15)]...
  • Page 11 8. 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. MAIN : Main source information : Display RF position number (1 - 135) on the main screen, or Input Source (ANT1/2, CABLE, TV etc.) MAIN FORMAT :...
  • Page 12 9. LED indications The green and red LED lights are on the TV front touchpad, to the left of the POWER button. The green and red LED lights on the TV control touchpad (on the lower right corner of the TV screen) indicate the TV's current status, as follows: TV front touchpad Red LED...

  • Page 13: Setting & Adjusting Data

    SETTING & ADJUSTING DATA SERVICE MODE ADJUSTING ITEMS AND DATA IN THE SERVICE MODE: Item Name of adjustment Preset Data Item Name of adjustment Preset Data RCUT R CUT OFF VPOS V-POSITION GCUT G CUTOFF CWDH COLOR WHEEL DELAY (HIGH) BCUT B CUT OFF CWDL...

  • Page 14: Lamp Unit Replacement

    LAMP UNIT REPLACEMENT Cautions when replacing LAMP UNIT (E998Z; PJ-D95-LMP) The light source for this TV is a mercury lamp with internal atmospheric pressure that increases during use. The lamp has a limited service life that varies depending on user settings. If you use the lamp beyond its service life: you may notice a reduction in the colors and/or brightness of the pic- ture;...
  • Page 15 Turn off the TV and unplug the power cord. Grasp the lamp unit handle and gently pull the lamp unit straight out of the TV. Set the old lamp unit aside. STOP! Allow the lamp to cool for at least one (1) hour before replacing it.
  • Page 16 Reattach the lamp unit door, making sure to insert the hook on the left side of the lamp unit door inside the opening in the TV cabinet. Replace the thumb screw and hand-tighten. Plug in the power cord and turn on the TV. After the initial warmup period (which may take up to 45 seconds for full picture brightness), the TV should operate nor- mally.

  • Page 17: Light Engine Replacemant

    LIGHT ENGINE REPLACEMENT 1-2. Adjustment is made from service mode. The adjusting Cautions when replacing LIGHT ENGINE items consist of CWDL, CWDH and DMDB. LIGHT ENGINE UNIT: A271 : LV-672 TB 0D CWDL CWDH (Including with E998Z, SK01 to SK04, SK06,SK08 and SK09.) When CW delay number of the data bar code is 0450: LIGHT ENGINE is a heart of the TV and emits high heat.
  • Page 18 Conversion Table for Decimal and Hexadecimal Numbers CW delay CW delay CW delay CW delay CW delay CWDH CWDL CWDH CWDL CWDH CWDL CWDH CWDL CWDH CWDL number number number number number 0000 0370 0740 1110 1480 0005 0375 0745 1115 1485 0010...

  • Page 19: Parts Replacement In Light Engine

    PARTS REPLACEMENT IN LIGHT ENGINE Replacement of Lamp FAN (SK01) Replacement of Ballast FAN (SK03) 1-1. Replace the FAN for cooling Lamp (SK01), remove 2 2-1. Replace the FAN for cooling Ballast Power Unit (SK03), screws on the FAN hood, and then remove 4 screws on remove the 4 pins by pressing into the unit, and then the FAN for cooling Lamp.
  • Page 20 Replacement of Ballast to Formatter Board 3-2. Remove the 2 screws from the bracket, and then remove the FAN for cooling Formatter Board (SK02). Cables (SK06 and SK08) 3-3. Disconnect and replace the FAN transfer cable between 5-1. Disconnect and replace the cable between Ballast and Ballast and Formatter Boards (SK09).

  • Page 21: Exploded View

    EXPLODED VIEW W661A 4 screws A661 2 screws 12 scre W661B 4 screws Note ; A205 (Back Cover Assy) includes A204, A204 A661, A662, W661A, W661B, W662A and W662B except A101. K601 12 screws 4 screws 4 screws A101 W662A 3 screws 3 screws 2 screws...

  • Page 22: Mechanical Disassembly

    MECHANICAL DISASSEMBLY 1. Rear Cover Removal 2. Touchpad & Bezel Ass'y Removal 12 screws A201 A401 U105 2 screws 2 screws 4 screws 2 screws UV04 UC01 UA06 A227 1 screw 13 screws A333 A222 3. Mirror Removal 4. Speaker Removal A204 A205 W661A...

  • Page 23: Chassis Replacement Parts List

    CHASSIS AND CABINET REPLACEMENT PARTS LIST WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRE- CAUTION" AND "PRODUCT SAFETY NOTICE" 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 24 Location Parts No. Description Location Parts No. Description C809 76086067 CHEMICON 200V 102M LGQ2D102MESHTL 76092730 CERAMIC CHIP, 16V B 0.1UF K @UC01 C810 76086067 CHEMICON 200V 102M LGQ2D102MESHTL CC02 76109102 CERAMIC CHIP, 50V B 1000PF K @U104 C811 76092567 CERAMIC DISC, AC250V E 1000PF M 76092730 CERAMIC CHIP, 16V B 0.1UF K @UC01 C812 76092567 CERAMIC DISC, AC250V E 1000PF M...
  • Page 25 Location Parts No. Description Location Parts No. Description CE51 76092738 CERAMIC CHIP, 25V B 0.47UF K CS24 76794101 ELECTROLYTIC, 16V 100UF M CE52 76073151 ELECTROLYTIC, 16V 120UF M 3A CS25 76794220 ELECTROLYTIC, 16V 22UF M CE53 76666470 ELECTORLYTIC, 16V 47UF M 3A CS31 76794100 ELECTROLYTIC, 16V 10UF M CE54...
  • Page 26 Location Parts No. Description Location Parts No. Description R699 76011103 CHIP, 1/20W 10K OHM J RA57 76011105 CHIP, 1/20W 1M OHM J R803 76011333 CHIP, 1/20W 33K OHM J RA61 76011222 CHIP, 1/20W 2.2K OHM J R805 76120001 CEMENT RES 141C 2.1W 1R8 K RA62 76011222 CHIP, 1/20W 2.2K OHM J R807...
  • Page 27 Location Parts No. Description Location Parts No. Description RB560 76011101 CHIP, 1/20W 100 OHM J RE21 76011103 CHIP, 1/20W 10K OHM J RB561 76011472 CHIP, 1/20W 4.7K OHM J RE22 76011103 CHIP, 1/20W 10K OHM J RB562 76366104 CARBON FILM, 1/6W 100K OHM J RE23 76011473 CHIP, 1/20W 47K OHM J RB563...
  • Page 28 Location Parts No. Description Location Parts No. Description RF21 76998683 CHIP, 1/16W 68K OHM D RV52 76011750 CHIP, 1/20W 75 OHM J RF22 76998473 CHIP, 1/16W 47K OHM RV53 76011750 CHIP, 1/20W 75 OHM J RF23 76011474 CHIP, 1/20W 470K OHM J RV54 76011750 CHIP, 1/20W 75 OHM J RF24...
  • Page 29 Location Parts No. Description Location Parts No. Description JR027 76000445 CHIP JUMPER, 1608TYPE LE86 23248432 COIL, CHOKE, TLN3499AH ZC01 76019479 CHIP BLOCK, 1/32W 22 OHM J, P-8 LE87 23248432 COIL, CHOKE, TLN3499AH ZC02 76019479 CHIP BLOCK, 1/32W 22 OHM J, P-8 LE88 23248445 COIL, CHOKE, TLN3441AH ZC03...
  • Page 30 Location Parts No. Description Location Parts No. Description QB80 23085600 IC, PST9129 D616 23357697 DIODE, 1SS133 QB81 23205446 TRANSISTOR, 2SC2412K, Q T146 D617 23357697 DIODE, 1SS133 QB84 23205446 TRANSISTOR, 2SC2412K, Q T146 D628 23357865 DIODE, ZENER, MTZJ12B QB501 23085951 IC, BLASTER IC S3C80F9BKZ-SO77 D801 23357712 DIODE, D5SB60, 4009 F05 QB502...
  • Page 31 Location Parts No. Description Location Parts No. Description A305 23717197 SCREW, THUMB SCREW PV05 23023439 JACK, PIN 4/4P JALCO YKC21-4672N A306 23717198 SCREW, THUMB SCREW RETAINER PZ01 23713951 CONNECTOR, CONNECT S9B-PH-K-S(LF) A516 23717192 SCREW, SCREW, AV BOARD Q601B 23717241 SCREW, BITTB3X8ECO B230 23738088 SCREW, BTBW3X12ECO S810...

  • Page 32: Pc Boards Top And Bottom View

    BACK AV BOARD PD2141A-1 (U104) BOTTOM (FOIL) SIDE PV03 PV04 PB502 PV01 PV02 PB501 PV90 PV05 DR05 DR04 DR04 CC06 RC02 RC02 CC09 CC06 CC08 RC06 RC08 RV55 RC01 RC01 CC08 DB501 RV40 CC05 RV35 CC05 CC07 CC07 DB504 RC05 RC07 CC14 CC13...
  • Page 33 BACK AV BOARD PD2141A-1 (U104) TOP (COMPONENT) SIDE DB501 DB504 JP004 PV90 R4109 R4109 PV05 PV04 PV03 PV02 QB508 Q4103 CS31 CS32 CS21 RS21 PV01 CV64 RB562 QV12 DV166 RV64 CS33 GR12 QB512 QB509 RS16 RS16 CS16 CS16 QV30 GR12 CS24 DV163 QB510...
  • Page 34 MAIN POWER BOARD PD2139A-1 (U801) BOTTOM (FOIL) SIDE Q846 C8921 C8910 SR81 P811A Q846 L864 Q891 Q893 P902 3 2 1 Q8960 F859 C898 R8912 L8961 R8964 L820 4A 125V L8961 R8964 D842 R850 D859 CF91 R8962 SR82 R8931 R8910 R8911 Q848 R8963...
  • Page 35 SUB POWER BOARD PD2139A-2 (U802) BOTTOM (FOIL) SIDE 8A 125V F801 2A 125V FE01 TE62 TE01 P800 LE08 CE10 CE84 LE84 RE08 DE84 AA01 R899 CE88 DE01 T802 FE82 T801 4A 125V RE62 C801 LE61 CE82 DE82A CE86 P802 RE63 CE01 DE82 CE63...
  • Page 36 MOTHER BOARD PD2140A (U102) BOTTOM (FOIL) SIDE PZ01 C007 C019 PB80B C008 C012 23547807 C051 C019 C012 C014 BB02A CE57 P891 GR004 P892 DF31 QF05 RF31 DF31 C025 C045 C025 RF31 RF30 C045 RF30 CF38 CF22 CF37 CF19 FF34 C002 C031 125V 1.5A C031...
  • Page 37 IR BLASTER BOARD PD2141A-2 (U105) BOTTOM (FOIL) SIDE RB51 RB63 CB60 CB52 RB60 DB51A CB55 RB53 DB51 CB51 CB59 CB53 RB56 RB62 CB61 QB52 RB52 RB59 CB54 DB54 KB01 CB56 RB69 RB19 DB55 CB58 CB01 PB22 MULT CARD BOARD PD2142A (UC01) MULT CARD BOARD PD2142A (UC01) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE...
  • Page 38 TOUCH PAD BOARD PD2144A (UA06) BOTTOM (FOIL) SIDE QA88 QA86 JR024 QB83 JR023 QA92 CA92 QA82 JR017 QA83 JR018 RB88 QA91 RA76 JR023 RA96 QA88 JR017 QA84 RA92 CB82 RA93 JR018 RA97 JR013 CA97 RA92 CB83 RA93 QA83 PD2144 RA97 JR003 RA71 RA75...
  • Page 39 SEINE DIGITAL BOARD PD2230 (UD02) SEINE DIGITAL BOARD PD2230 (UD02) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 42 – – 43 –...
  • Page 40 DIGITAL TUNER BOARD PD2232 (UD02) DIGITAL TUNER BOARD PD2232 (UD02) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 44 – – 45 –...
  • Page 41 SIGNAL UNIT BOARD PD2277 (UD01) SIGNAL UNIT BOARD PD2277 (UD01) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 46 – – 47 –...

  • Page 42: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SC5144 2SC3852 2SC752 2SA1788 2SC752GTM 2SC5859 2SD1763A 2SA562TM 2SC2482 2SC1569 2SC2655 2SA1015 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 RN2203 2SD1554 ON4409 2SD2253 RN2201 RN2004 2SD1556 RN1203 2SD2553 RN1204 2SC5143 RN2204 RN1205 RN1202 RN1201 - 48 -...
  • Page 43 SCHEMATIC DIAGRAM MODEL : 62HM95 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 44 SCHEMATIC DIAGRAM STRUCTURE: BACK_AV Circuit CONNECTORS [ SHEET-1/6 ] ......... 1/146 – AV Jacks [ SHEET-2/6 ] ......... 2/146 – CS-SW [ SHEET-3/6 ] ......... 3/146 – Audio Select [ SHEET-4/6 ] ......... 4/146 – IR [ SHEET-5/6 ] ......... 5/146 –...
  • Page 45 – ML DPORT EVEN1 [ SHEET-505 ] ....49/146 – ML DPORT EVEN2 [ SHEET-506 ] ....50/146 – ML DDR INTERFACE [ SHEET-507 ] ....51/146 – ML DDR SDRAM [ SHEET-508 ] ....52/146 – ML DDR TERMINATION [ SHEET-509 ] ....
  • Page 46 – T313 (POWER) [ SHEET-103 ] ....97/146 – SEINE_TS_I/F [ SHEET-150 ] ....98/146 – SEINE_CAPTURE_IN [ SHEET-200 ] ....99/146 – VIDEO_POWER [ SHEET-210 ] ....100/146 – SEINE_DIGITAL_OUT [ SHEET-220 ] ....101/146 – SEINE_BEP_IF [ SHEET-221 ] ....102/146 –...

  • Page 47: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM BACK AV SIGNAL BOARD DDR SDRAM DDR SDRAM FLI8532 CORTEZ VBI Data PJ22 VIDEO Processor YCbCr CS 1/2 Analog DCDi Video CVBS Front MADi E 1-3 Decoder Scaling (16port) TUNER SC 1-3 ANT 1/2 LVDS RF-SW TIF OUT Chanel CVBS Process...
  • Page 48 OPTICAL ENGINE UNIT Smooth Picture Control Board Projection Lens Lamp Light Tunnel Chip From RTIR Prism Color Wheel Color Wheel Sensor Board Drive Ballast Board Ballast Engine DMD MAIN POWER FAN EX FAN EX FAN DMD FAN DMD Mother Board TRANS E2.5 E2.5...

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