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Toshiba 56HM16 Service Manual

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SERVICE MANUAL
For Technical Bulletins, Technical Tips, or other information regarding the
service of this model, visit the Toshiba America Consumer Products National
Service Division website at:
This model is classified as a
This Service Manual describes replacement parts for the green product. When repairing this
green product, use the part(s) described in this manual and
For (*1) and (*2), refer to
SOLDER.
© TOSHIBA CORPORATION 2009
Projection Television
56HM16
www7.toshiba.com
green product
(*1), as indicated by the underlined serial number.
GREEN PRODUCT PROCUREMENT
Rev.1
lead-free solder
(*2).
LEAD-FREE
and

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Summary of Contents for Toshiba 56HM16

  • Page 1 SERVICE MANUAL Projection Television 56HM16 Rev.1 For Technical Bulletins, Technical Tips, or other information regarding the service of this model, visit the Toshiba America Consumer Products National Service Division website at: www7.toshiba.com This model is classified as a green product (*1), as indicated by the underlined serial number.

  • Page 2: Important Notice

    EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Toshiba shall not be liable for any damages, losses, expenses or costs, if any, incurred in connection with or as a result of use of any information or data provided herein.
  • Page 3 that have these same characteristics. Use only the specified parts when the mark is indicated in the circuit diagram or parts list. Part mounting and wire routing should be the same as that used originally. For safety purposes, insulating materials such as isolation tubes or tape are sometimes used and printed circuit boards are sometimes mounted floating.
  • Page 4 Entering Service Mode Set VOLUME to minimum and press MUTE button twice on the remote control. ↓ Press MUTE button again and hold button down. ↓ Service Mode display While holding the MUTE button, press MENU button on TV set. Selecting the Adjusting Item Every pressing of CH button in the service mode changes the adjustment items.
  • Page 5 LED BLINK CODES The yellow, blue, and red/green LED lights on the TV (at the bottom center of the TV) indicate the TV's status, as described below: Note: If the TV loses A/C power (e.g., a power outage occurs or the power cord is unplugged), when power is restored, the yellow LED will blink while the TV is booting until the remote control is usable.
  • Page 6 Replacing the Lamp Unit WARNING: RISK OF ELECTRIC SHOCK! TO REDUCE THE RISK OF ELECTRIC SHOCK, NEVER REMOVE TV COVERS, EXCEPT AS SPECIFIED HEREIN. REFER ALL SERVICING NOT SPECIFIED IN THIS MANUAL TO QUALIFIED SERVICE   PERSONNEL. Failure to follow this WARNING may result in death or serious injury. The light source for this TV is a mercury lamp with internal atmospheric pressure that increases during use.
  • Page 7 WARNING: RISK OF ELECTRIC SHOCK! The lamp unit door is provided with an interlock to reduce the risk of electric shock and excessive ultraviolet radiation. Never defeat its purpose or attempt to service without removing the lamp unit door completely. Failure to follow this WARNING may result in death or serious injury. Grasp the lamp unit handle and gently pull the lamp unit straight out of the TV.
  • Page 8 • In the U.S., call TACP Consumer Solutions at 1-800-631-3811. • In Canada, locate the nearest Toshiba authorized service depot by directing your web browser to www.toshiba.ca; click "Home Entertainment", and then click "Support". Disposing of the Used Lamp Unit CAUTION: Always handle the lamp unit with care.

  • Page 9: Front Bezel Removal

    Front Bezel Removal 50HM66, 50HMX96, 56HM16, 56HM66, 56HMX96 1. Remove 7 Screws from cabinet Back 2. Remove Front Plate 3. Remove 2 Screws 4. Pull front Bezel up then out ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 10 of 12...

  • Page 10: Light Engine Replacement

    LIGHT ENGINE REPLACEMENT Remove the back cover. Remove the lamp cover by removing screws 1, 2, and 3. Remove the LVDS and POWER cables. Unfasten the thermostat lead wires. (Leave the thermostat Breaker.)
  • Page 11 Remove the door SW unit by unscrewing as shown below. Disconnect the ballast cable and remove the ballast unit from the retaining clips 1 - 4. Remove the light engine. Reassemble the light engine by following steps 1 – 7 in reverse. Lamp Fan Replacement Remove screws 1, 2, and 3 securing the lamp fan cover and remove the lamp fan cover.
  • Page 12 Remove the Ballast Fan cable (1) and Lamp Fan cable (2). Remove the 2 screws securing the Lamp fan and remove the lamp fan. Remove the 4 rubber corners from the old lamp fan and place them on the new lamp fan. Assemble the new fan to the light engine by following steps 1 –...
  • Page 13 DMD Fan Replacement Remove the DMD Fan cable. Remove the DMD Fan casing by removing screws 1, 2, and 3. Remove the 2 screws securing the LVDS connector.
  • Page 14 Remove the DMD shield case by removing screws 1 and 2. Remove the DMD Fan by removing screws 1 and 2. Assemble the new DMD fan by following steps 1 – 5 in reverse. Ballast Fan Replacement Remove the retaining pins from the fan.
  • Page 15 Replace the Ballast Fan. Fix the Ballast Fan with two pins. Thermostat Breaker Replacement Disconnect the thermostat lead wires.
  • Page 16 Replace the Thermostat Breaker by removing the retaining screw. (Thermostat Breaker is secured by 2 screws in some production units.) Reconnect the thermostat lead wires.
  • Page 17 POD Fan Has Stopped BLUE - Solid (Lamp will still light but has error Indication on GREEN - .5 second blinks Screen) Refer to Chart 4 UNKNOWN Sequence or No Sequence Go To Chart 2 ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. SMART2006001_Version2.2...
  • Page 18 Technical Support. Connections Engine 1-800-345-9785 Footnote 1. The Color Wheel will emit a high pitched whine when the TV Receiver is first turned on. ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 3 of 12 SMART2006001_Version2.2...
  • Page 19 Replacing the Light Engine under Warranty requires a concession number to be obtained from Technical Support. 1-800-345-9785 ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 4 of 12 SMART2006001_Version2.2...
  • Page 20 P823B Pin 6? and 20? Check F873 and Change Regulator Check F875 and Power Supply Power Supply P823B P822B PB90 PB80B CS110 PB504 Back AV & Regulator PCB ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 5 of 12 SMART2006001_Version2.2...

  • Page 21: Block Diagram

    BLOCK DIAGRAM T840 D840 Standby Power 5V-1 Transformer HDMI IN IC05 Regulator 3.3V-1 T800 RF-SW T862 SR81 D801 MAIN Power IC823 Transformer 3.3V D1 IC827 DC-DC 3.3V D2 SR82 CONV IC831 IC611 6V D US MTS AN5832SA IC899 Regulator IC700 IC201 TC90111A TB1131F...
  • Page 22 56HM16 Wiring Diagram TOSHIBA 50HM66, 50HMX96, 56HM16, 56HM66, 56HMX96,62HM116, 62HM196, 62MX196, 72HM196, 72MX196 Ver 1.5 POWER SUPPLY POWER UNIT REGULATOR PCB TV-MICRO PCB DIGITAL TUNER P800 P822A P822B PB80B PB80A PJ101 CN81 1 (120 vac) Power_DMD 2 Power_Sig_Det 32v 1...
  • Page 23 Video Signal Paths (Analog) ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 7 of 12 SMART2006001_Version2.2...
  • Page 24 Audio Signal Paths (Analog) ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 8 of 12 SMART2006001_Version2.2...
  • Page 25 Audio Signal Paths (Digital) ______________________________________________________________________________ 2007 Toshiba America Consumer Products, LLC. Page 9 of 12 SMART2006001_Version2.2...
  • Page 29 Replacement Parts List Location Part No. Description B810 23165495 EARTH TERMINAL, MET31-0332 B896 23165495 EARTH TERMINAL, MET31-0332 B898 23165495 EARTH TERMINAL, MET31-0332 B899 23165495 EARTH TERMINAL, MET31-0332 C801 76503508 MT PLA PCX2 337 11474 C802 76503507 PLASTIC FILM, AC275V 0.22UF K C803 76503506 PLASTIC FILM, AC275V 0.1UF K C807 76092565 CERAMIC DISC, AC250V B 470PF K...
  • Page 30 Replacement Parts List Location Part No. Description C886 76092178 CERAMIC CHIP, 25V B 0.1UF K C887 76109103 CERAMIC CHIP, 50V B 0.01UF K C888 76073087 ELECTROLYTIC, 50V 22UF M 3A C889 76073087 ELECTROLYTIC, 50V 22UF M 3A C891 76073152 ELECTROLYTIC, 16V 330UF M 3A C892 76073038 ELECTROLYTIC, 16V 100UF M 3A C898...
  • Page 31 Replacement Parts List Location Part No. Description K501 75002251 SCREEN 56K6M LENTI SHEET, SCREEN56K6ML K502 23311157 SCREEN, SCREEN56K5NF K601 75002249 MIRROR 56G6M3, MIRROR56G6M3 L803 23103302 FERRITE CHOKE, TEM2011AH L804 23103302 FERRITE CHOKE, TEM2011AH L805 23103302 FERRITE CHOKE, TEM2011AH L840 23289996 COIL, PEAKING, TRF4220AF L841 23103302 FERRITE CHOKE, TEM2011AH L842...
  • Page 32 Replacement Parts List Location Part No. Description Q862 23000823 IC, PHOTO COUPLER, TLP421F(GR) Q865 23205329 TRANSISTOR, RN1404(F) Q870 23085389 IC, NJM431L Q875 75002026 TRANSISTOR, 2SJ304(F) Q876 23205506 TRANSISTOR, 2SC4081 Q Q877 75002025 TRANSISTOR, 2SJ668(Q) Q878 23205506 TRANSISTOR, 2SC4081 Q R803 76011221 CHIP, 1/20W 220 OHM J R807 76011822 CHIP, 1/20W 8.2K OHM J R808...
  • Page 33 Replacement Parts List Location Part No. Description R876 76011103 CHIP, 1/20W 10K OHM J R877 76011473 CHIP, 1/20W 47K OHM J R878 76011103 CHIP, 1/20W 10K OHM J R879 76011223 CHIP, 1/20W 22K OHM J R880 76011223 CHIP, 1/20W 22K OHM J R881 76011223 CHIP, 1/20W 22K OHM J R882...
  • Page 34 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...