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Toshiba 56HM195 Service Manual

Projection television
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SERVICE MANUAL
Projection Television
TOSHIBA CORPORATION 2005
FILE NO. 020-200523
56HM195
62HM195
72HM195
DOCUMENT CREATED IN JAPAN, Sept., 2005
Published in Japan Sep. 2005 (YC)

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Summary of Contents for Toshiba 56HM195

  • Page 1 FILE NO. 020-200523 SERVICE MANUAL Projection Television 56HM195 62HM195 72HM195 DOCUMENT CREATED IN JAPAN, Sept., 2005 TOSHIBA CORPORATION 2005 Published in Japan Sep. 2005 (YC)

  • Page 2: 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 3: 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 4: Service Mode

    SERVICE MODE 1. ENTERING SERVICE MODE 3) While pressing the MUTE button, 1) Press MUTE button twice 2) Press 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 5 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 : HM195 and Version : 1401 indicates[HM195_1401].
  • Page 6 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 : HM195, Version 1401 for Code Program Version and (U15) for OSD Version indicates [HM195_1401(U15)]...
  • Page 7 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 (HDMI1/2, DVI, AUDIO etc.) MAIN FORMAT :...
  • Page 8 TV cabinet are not vals 4 times (repeat). covered, blocked, or dusty. Turn ON the TV again. If the problem persists, contact a Toshiba Authorized Service Center. Yellow is OFF; Abnormal operation Turn OFF the TV and unplug the power cord.

  • Page 9: 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 10: 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 11 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 12 Reattach the lamp unit door, making sure to insert the hooks on the left side of the lamp unit door inside the opening in the TV cabinet. Insert the hooks inside the TV cabinet opening. Lamp unit door Replace the screw and hand-tighten using a manual screwdriver.

  • Page 13: Light Engine Replacemant

    LIGHT ENGINE REPLACEMENT Cautions when replacing LIGHT ENGINE LIGHT ENGINE UNIT: A271 : LV-682 TB (Including with E998Z, SK01 to SK04, SK06,SK08 and SK09.) LIGHT ENGINE is a heart of the TV and emits high heat. Make sure to replace it after turning off the TV and wait for sufficient cool down.

  • Page 14: 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 the 2-1. Replace the FAN for cooling Ballast Power Unit (SK03), 4 screws on the FAN Hood, and remove the 4 pins by remove the Ballast Hood, and remove the 2 screws on the pressing toward allows using a screwdriver, and the Ballast Case Cover.
  • Page 15 Ballast FAN (SK03) 3-2. Remove the 2 screws from the bracket, and then remove the FAN for cooling Formatter Board (SK02). 3-3. Disconnect and replace the FAN transfer cable between Ballast and Formatter Boards (SK09). DMD FAN (SK02) 2 screws 4 pins Replacement of DMD FAN (SK02) and FAN Transfer Cable (SK09)
  • Page 16 SK06 LIGHT ENGINE UNIT Location Parts No. Description A271 23405480 OPTICAL ENGINE LV-682 TB 0C 56HM195 (Incl. E998Z, SK01-SK04, SK06,SK08,SK09) 23405481 OPTICAL ENGINE LV-682 TB 0D 62HM195 (Incl. E998Z, SK01-SK04, SK06,SK08,SK09) 23405482 OPTICAL ENGINE LV-682 TB 0E 72HM195 (Incl. E998Z, SK01-SK04, SK06,SK08,SK09)

  • Page 17: Exploded View

    EXPLODED VIEW 15 screws A421 (Incl. A411) K601 6 screws K501 4 screws 2 screws K502 6 screws A201 A202 A100 2 screws W661A W661B 9 screws A225 A220 UA07 4 screws 3 screws 4 screws UV04 4 screws 3 screws UA06 UC01 UA03...

  • Page 18: Mechanical Disassembly

    MECHANICAL DISASSEMBLY 1. Rear Cover Removal 2. Touchpad & Bezel Ass'y Removal 15 screws A402 4 screws A102 14 screws A103 9 screws 3. Mirror Removal 4. Speaker Removal K601 W661B W661A 3 screws 3 screws 6 screws W662B 8 screws W662B 8 screws 5.

  • Page 19: Chassis Replacement Parts List

    5%, 50V and all resistors, 5%, 1/6W unless otherwise noted.) Location Parts No. Description Location Parts No. Description #1 : [56HM195] C042 76100104 CERAMIC CHIP, 25V F 0.1UF Z #2 : [62HM195] C043 76100104 CERAMIC CHIP, 25V F 0.1UF Z...
  • Page 20 Location Parts No. Description Location Parts No. Description C801 76503004 PLASTIC FILM, AC275V 0.47UF M 76092730 CERAMIC CHIP, 16V B 0.1UF K @UC01 C803 76503002 PLASTIC FILM, AC275V 0.22UF M CC07 76109102 CERAMIC CHIP, 50V B 1000PF K @U104 C805 76092281 CERAMIC DISC, AC250V E 4700PF 76619100 ELECTROLYTIC CHIP, 16V 10UF M @UC01 C808...
  • Page 21 Location Parts No. Description Location Parts No. Description CE63 76669339 ELECTROLYTIC, 50V 3.3UF M CS25 76794220 ELECTROLYTIC, 16V 22UF M CE64 76503041 PLASTIC FILM , 63V 0.1UF J CS31 76794100 ELECTROLYTIC, 16V 10UF M CE65 76214221 CERAMIC DISC, 500V B 220PF K CS32 76794100 ELECTROLYTIC, 16V 10UF M CE68...
  • Page 22 Location Parts No. Description Location Parts No. Description R803 76011333 CHIP, 1/20W 33K OHM J RB19 76366470 CARBON FILM, 1/6W 47 OHM J R805 76120001 CEMENT RES 141C 2.1W 1R8 K RB51 76366224 CARBON FILM, 1/6W 220K OHM J R807 76011223 CHIP, 1/20W 22K OHM J RB52 76366123 CARBON FILM, 1/6W 12K OHM J...
  • Page 23 Location Parts No. Description Location Parts No. Description 76011220 CHIP, 1/20W 22 OHM J @UC01 RE44 76011103 CHIP, 1/20W 10K OHM J RC09 76011101 CHIP, 1/20W 100 OHM J @U104 RE45 76011223 CHIP, 1/20W 22K OHM J 76011270 CHIP, 1/20W 27 OHM J @UC01 RE47 76998333 CHIP, 1/16W 33K OHM RC10...
  • Page 24 Location Parts No. Description Location Parts No. Description RS09 76011562 CHIP, 1/20W 5.6K OHM J RV169 76011101 CHIP, 1/20W 100 OHM J RS10 76011562 CHIP, 1/20W 5.6K OHM J RV200 76011101 CHIP, 1/20W 100 OHM J RS11 76011562 CHIP, 1/20W 5.6K OHM J RV201 76011101 CHIP, 1/20W 100 OHM J RS12...
  • Page 25 Location Parts No. Description Location Parts No. Description L8961 23103828 INDUCTOR, BEAD, TEM2121M Q847 23205347 TRANSISTOR, KTC4075Y/P LB19 23103828 INDUCTOR, BEAD, TEM2121M Q848 23205347 TRANSISTOR, KTC4075Y/P LB51 23289972 COIL, PEAKING, TRF4100AC Q849 23205346 TRANSISTOR, KTA2014Y/P LC02 23103887 INDUCTOR, CHIP BEAD, TEM2130AM Q850 23205347 TRANSISTOR, KTC4075Y/P LC03...
  • Page 26 Location Parts No. Description Location Parts No. Description QS02 23205347 TRANSISTOR, KTC4075Y/P DE84 23357366 DIODE, FR105-B5 QS05 23205347 TRANSISTOR, KTC4075Y/P DE91 23357874 DIODE, ZENER, MTZJ16B QS06 23205347 TRANSISTOR, KTC4075Y/P DE92 23357874 DIODE, ZENER, MTZJ16B QS07 23205424 TRANSISTOR, KTC2875B/P DE98 23357703 DIODE, 1SS355 QS08 23205424 TRANSISTOR, KTC2875B/P DE99...
  • Page 27 Location Parts No. Description Location Parts No. Description M902A #1 23103840 FERRITE CORE, TFE1013 XB501 23153504 CERAMIC RESONATOR, 8.00MHZ 25OHM #3 23103840 FERRITE CORE, TFE1013 XC01 23153589 CRYSTAL RESONATOR, XTAL 12MHZ M906A #1 23103778 FERRITE CORE, TFE1008 #3 23103778 FERRITE CORE, TFE1008 PC BOARD ASSEMBLIES M906B #1 23103778 FERRITE CORE, TFE1008 U102...
  • Page 28 Location Parts No. Description Location Parts No. Description #2 23311149 SCREEN, 62K5N LENTICULAR SHEET SCREEN62K5NL #3 23311144 SCREEN, 72K5M LENTICULAR SHEET SCREEN72K5ML K502 #1 23311157 SCREEN, 56K5NF SCREEN56K5NF #2 23311158 SCREEN, 62K5NF SCREEN62K5NF #3 23311145 SCREEN, 72K5M FRESNEL SHEET SCREEN72K5MF K601 #1 23405488 MIRROR, 56G5M3 MIRROR56G5M3 #2 23405489 MIRROR, 62G5M5 MIRROR62G5M5...

  • Page 29: Pc Boards Top And Bottom View

    QB502 QB517 CB82 PB504 RB575 RB527 RB506 XB501 QB80 RB526 RB81 RB525 RB504 RB503 RB525 CB503 DB502 RB505 RB527 DB502 RB526 RB81 RB503 RB563 CB503 RB565 CB505 LB19 CB505 LB19 CR01 CV80 CV86 RR01 RR02 CR01 RB566 DR02 QB516 CB508 DR02 CB510 RR01...
  • Page 30 C615 R610 C613 D601 R609 C610 C614 D603 C609 C616 C604 C608 C605 C603 C607 CS35 C666 CV72 C606 C663 JP005 CV74 R697 C688 DV165 CV63 C662 DV161 D613 CV77 C661 LV17 DV162 CV71 R665 Q661 RV169 RV169 R665 RV168 RV168 DV164 C667...
  • Page 31 P901 PG01 L8931 C8920 R8932 R8932 C8934 C8924 CG03 CG03 C8924 LG02 L8921 DE91 CE19 C8910 R8923 QE95 RE19 Q893A R8923 DE19 L8920 RE18 QE97 C8932 RE18 RE99 RE98 RE98 R8921 R8922 R8921 R8912 RE96 R8922 RE96 C8911 RE15 D8950 RE15 D8950 C8921...
  • Page 32 RA72 QB84 RB93 RB93 CE04 CE62 CE72 CE64 RE73 DE72 DE63 DE66 DE62 CE08 LE91 RE72 LE91 DE71 RE71 DE08 CE93 CE93 CE94 LE83 23547806 RE85 RE85 FE83 125V RE81 P902A RE81 S810 DE83A RE86 RE83 RE83 RE86 125V 630mA RV23 FE84 RV22...
  • Page 33 LF21 CF10 DF20 LF21 QF21 LF10 LF22 LF10 DF21 DF21 DF25 DF25 CF38 CF22 QF10 RF14 CF14 DF15 CF14 RF14 DF15 CF37 CF12 QF11 C003 DF10 CF21 LF11 C003 CF19 CF21 LF13 LF13 LF12 LF11 LF12 LE40 LE40 LF14 1.5A 125V C007 FE31...
  • Page 34 P515 C151 C151 C152 C152 RC22 RC22 DC01 DC04 DC01 DC02 DC02 CC18 CC18 CC32 CC28 C110 C110 C111 C111 GR123 GR121 GR123 C103 C103 GR121 PC03 C112 C112 D101 C101 RC07 C101 RC07 C113 C113 CC36 CC30 R108 L103 CC08 RC01 CC08...

  • Page 38: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SC5144 2SC3852 2SC752 2SA1788 2SC752GTM 2SC5859 2SD1763A 2SC2482 2SA562TM 2SC1569 2SA1015 2SC2655 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 RN2203 2SD1554 ON4409 RN2201 2SD2253 2SD1556 RN2004 RN1203 2SD2553 RN1204 2SC5143 RN2204 RN1205 RN1202 RN1201 - 47 -...
  • Page 39 SCHEMATIC DIAGRAM MODEL : 56/62/72HM195 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY PRECAUTION" 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 40 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 41 – 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 42 – 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 –...

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