Toshiba 56HM195 Service Manual
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Toshiba 56HM195 Service Manual

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SERVICE MANUAL
Projection Television
The above models are classified as green products (*1), as indicated by the underlined serial numbers. This Service Manual
describes replacement parts for the green products. When repairing these green products, use the parts described in this
manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
TOSHIBA CORPORATION 2005
FILE NO. 020-200523GR
56HM195
62HM195
72HM195
Published in Japan Sep. 2005 (YC)

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  • Page 1 When repairing these green products, use the parts described in this manual and lead-free solder (*2). For (*1) and (*2), see the next page. Published in Japan Sep. 2005 (YC) TOSHIBA CORPORATION 2005...

  • Page 2: Table Of Contents

    Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities.

  • 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 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 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

    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 30 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 31 MAIN POWER BOARD PD2139B-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 32 SUB POWER BOARD PD2139B-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 33 MOTHER BOARD PD2140B (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 34 IR BLASTER BOARD PD2141A-2 (U105) TUNER-RF BOARD PD2147A (U107) BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE P516 Q101 R103 GR04 RB51 R103 RB63 L190 L190 CB60 GR01 C107 CB52 C102 C104 RB60 C116 C109 H003 C119 DB51A CB55 RB53 23547812 DB51 CB51 CB59 D101...
  • Page 35 SEINE DIGITAL BOARD PD2230 (UD02) SEINE DIGITAL BOARD PD2230 (UD02) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 41 – – 42 –...
  • Page 36 DIGITAL TUNER BOARD PD2232 (UD02) DIGITAL TUNER BOARD PD2232 (UD02) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 43 – – 44 –...
  • Page 37 SIGNAL UNIT BOARD PD2299 (UD01) SIGNAL UNIT BOARD PD2299 (UD01) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 45 – – 46 –...

  • Page 38: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SC5144 2SC3852 2SC752 2SA1788 2SC752GTM 2SC5859 2SD1763A 2SC2482 2SA562TM 2SC1569 2SC2655 2SA1015 2SC4544 2SC1815 2SC4721P 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 RN2203 2SD1554 ON4409 RN2201 2SD2253 RN2004 2SD1556 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 –...

  • Page 43: 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 44 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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