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Toshiba 46HM84 Service Manual

Projection television
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SERVICE MANUAL

Projection Television
FILE NO. 020-200401
REVISED.2
46HM84
52HM84
62HM84
Published in Japan, Jan. 2005 (YC)

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  Summary of Contents for Toshiba 46HM84

  • Page 1: Service Manual

    All manuals and user guides at all-guides.com FILE NO. 020-200401 REVISED.2 SERVICE MANUAL Projection Television 46HM84 52HM84 62HM84 Published in Japan, Jan. 2005 (YC)
  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS .............................. 3 SERVICE MODE ................................4 SPECIFIC INFORMATIONS CHAPTER 2 SETTING & ADJUSTING DATA ............................7 LOCATION OF CONTROLS ............................8 PROGRAMMING CHANNEL MEMORY ........................10 LAMP UNIT REPLACEMENT ............................
  • Page 3: Chapter 1 General Adjustments

    All manuals and user guides at all-guides.com CHAPTER 1 GENERAL ADJUSTMENTS 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.
  • Page 4: Service Mode

    All manuals and user guides at all-guides.com SERVICE MODE 1. ENTERING SERVICE MODE 1) Press MUTE button twice 2) Press MUTE button 3) While pressing the MUTE button, press MENU button on TV set. on Remote Control. again and keep pressing. MUTE (Service mode display) 2.
  • Page 5 All manuals and user guides at all-guides.com 6. 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.
  • Page 6 All manuals and user guides at all-guides.com 7. LED indications The green and red LED lights on the TV control touchpad Control touchpad on TV front (on the lower right corner of the TV screen) indicate the TV's current status, as follows: Green ON = Control touchpad being pressed.
  • Page 7: Chapter 2 Specific Informations

    All manuals and user guides at all-guides.com CHAPTER 2 SPECIFIC INFORMATIONS 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 OPT1 TV SET OPTION 2 GCUT...
  • Page 8: Location Of Controls

    All manuals and user guides at all-guides.com LOCATION OF CONTROLS Front Front Control touchpad on TV front ( Gently touch the printed keys.) MENU EXIT zyx • TV/VIDEO POWER TV/VIDEO EXIT CHANNEL VOLUME MENU POWER TV/VIDEO EXIT CHANNEL VOLUME MENU POWER Volume x •...
  • Page 9: Remote Control

    All manuals and user guides at all-guides.com Remote Control turns the TV on and off POWER POWER RECALL TV / VIDEO displays screen information RECALL INFO sets the TV to turn off at a specific time SLEEP selects video input source TV/VIDEO mutes the sound MUTE...
  • Page 10: Programming Channel Memory

    All manuals and user guides at all-guides.com PROGRAMMING CHANNEL MEMORY Adding channels to the TV’s memory When you press Channel y or z, your TV will stop only on the Note: channels stored in the TV’s channel memory. To tune the TV to a channel not programmed in the channel memory, you must use the Follow the steps below and on the next page to program all active Channel Number buttons on the remote...
  • Page 11 All manuals and user guides at all-guides.com Adding and erasing channels manually After you have programmed the channels automatically, you can manually add or erase specific channels. Control touchpad on TV front To add or erase channels: 1. Select the channel you want to add or erase. If you are adding a channel, you must select the channel using the Channel Number TV/VIDEO EXIT...
  • Page 12: Lamp Unit Replacement

    All manuals and user guides at all-guides.com LAMP UNIT REPLACEMENT Cautions when replacing LAMP UNIT (SK02) 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.
  • Page 13 All manuals and user guides at all-guides.com 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 14 All manuals and user guides at all-guides.com 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.
  • Page 15: Light Engine Replacemant

    All manuals and user guides at all-guides.com 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 : PJ-TB25-46/52/62 (Including with SK02 to SK08) CWDL CWDH SK01: PJ-TB-25-46S/52S/62S...
  • Page 16 All manuals and user guides at all-guides.com 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...
  • Page 17: Parts Replacement In Light Engine

    All manuals and user guides at all-guides.com PARTS REPLACEMENT IN LIGHT ENGINE 2-3. Detach the ballast power unit by removing 4 substrate FAN Replacement (SK06 and SK07) stoppers that hold the ballast power unit. 1-1. For replacing FAN for cooling heatsink (SK07), remove 2 screws.
  • Page 18 FAN, D07F-12SS18 01B(EX) 4-3. Remove 2 screws holding Photo Detector substrate SK08 23144199 BREAKER, US-603UXTLQE-H (SK04). #1:[46HM84] #2:[52HM84] #3:[62HM84] Color wheel Photo Detector substrate (SK04) Caution When removing screws, do not damage the color wheel with drivers, etc. Even a small im- pact may damage the color wheel.
  • Page 19: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW W661 12 screws 4 screws Note ; A205 (Back Cover Assy) includes A204, W661 and W662 except A101. A204 K601 12 screws M4 ✕ 16 M4 ✕ 16 4 screws M4 ✕ 16 3 screws 3 screws A101...
  • Page 20: Mechanical Disassembly

    All manuals and user guides at all-guides.com MECHANICAL DISASSEMBLY 1 Rear Cover Removal 2 Touchpad & Bezel Ass'y Removal 12 screws A201 A401 UA02 2 screws 4 screws 2 screws UV03 1 screw UA06 A227 13 screws A333 A222 3 Mirror Removal 4 Speaker Removal A205 A204...
  • Page 21: Chassis 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 : 46HM84/52HM84/62HM84 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 22 All manuals and user guides at all-guides.com Location Location Parts No. Description Parts No. Description C8210 24073172 ELECTROLYTIC CE04P 25V 1000UF M 3A CS14 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K C8211 24503041 PLASTIC FILM , 63V 0.1UF J CS15 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K C8212...
  • Page 23 All manuals and user guides at all-guides.com Location Location Parts No. Description Parts No. Description CY512 24092463 CERAMIC CHIP, 16V B 0.22UF K R697 24553561 OXIDE METAL FILM, 1W 560 OHM J CY513 24092730 CERAMIC CHIP, 16V B 0.1UF K R698 24011103 CHIP, METAL FILM, 1/20W 10K OHM J...
  • Page 24 All manuals and user guides at all-guides.com Location Location Parts No. Description Parts No. Description R8944 24367472 CARBON FILM, 1/6W 4.7K OHM G RS37 24011223 CHIP, METAL FILM, 1/20W 22K OHM J R8950 24366103 CARBON FILM, 1/6W 10K OHM J RS38 24011223 CHIP, METAL FILM, 1/20W 22K OHM J...
  • Page 25 All manuals and user guides at all-guides.com Location Location Parts No. Description Parts No. Description COIL & TRANSFORMERS RY109 24011332 CHIP, METAL FILM, 1/20W 3.3K OHM J RY110 24011152 CHIP, METAL FILM, 1/20W 1.5K OHM J L101 23289845 COIL, PEAKING, TRF4680AT RY160 24011471 CHIP, METAL FILM, 1/20W 470 OHM J...
  • Page 26 All manuals and user guides at all-guides.com Location Location Parts No. Description Parts No. Description Q845 23314965 TRANSISTOR, KTC3198 Y D605 23316231 DIODE, 1SS355 Q846 23314965 TRANSISTOR, KTC3198 Y D606 23316231 DIODE, 1SS355 Q847 23314965 TRANSISTOR, KTC3198 Y D607 23316231 DIODE, 1SS355 D608 23316231...
  • Page 27 CHIP JUMPER, 1608TYPE UA06 23761341 PC BD ASSY, FRONT KEY 57HL83 PU PD1503 JR009 24000445 CHIP JUMPER, 1608TYPE UD02 #1 23148133 SCALER 46HM84, B910PD1870C1 JR010 24000445 CHIP JUMPER, 1608TYPE #2 23148131 OPSS SCALER 52HM84, B910PD1870A1 JR011 24000445 CHIP JUMPER, 1608TYPE...
  • Page 28 All manuals and user guides at all-guides.com Location Parts No. Description #2 23946774 PACKING, SUPPORT POST #3 23946775 PACKING, SUPPORT POST K912 23306497 REMOCON HAND UNIT IR, CTVUSA Y101E 23566346 OWNERS MANUAL, ENGLISH Y101F 23566347 OWNERS MANUAL, FRENCH Y102 23589650 SHEET, IMPORTANT NOTES CABINET PARTS A025...
  • Page 29: Pc Boards Top And Bottom View

    All manuals and user guides at all-guides.com BACK AV BOARD PD1774A (U103) BOTTOM (FOIL) SIDE PV04 PB60 PS01 PV14 CV253 11 10 9 8 7 5 4 3 2 1 RY587 RY596 CV253 PX18 PX19 RY594 DV250 CV254 DV249 DV01 CV255 DV244 DV03...
  • Page 30 All manuals and user guides at all-guides.com BACK AV BOARD PD1774A (U103) TOP (COMPONENT) SIDE PX19 PV04 PX18 CV01 PV14 RV01 CV01 RV09 RV03 CV03 CV03 RV10 PS01 RV06 CV04 CV04 RV07 QV01 RV08 CV05 CV05 RV11 CV11 CV11 RV12 CV13 CV13 RV14...
  • Page 31 All manuals and user guides at all-guides.com MAIN POWER BOARD PD1773A-1 (U802) BOTTOM (FOIL) SIDE F8210 P891 D883 R888 L890 1.5A 125V D866 R885 C883 D865 R866 C884 L861 B1-V-0 Q862 P892 R869 D883A L881 R887 Q881 C886 R886 Q8210 Q801A L892 D884...
  • Page 32 All manuals and user guides at all-guides.com IF AUDIO BOARD PD1775 (U101) BOTTOM (FOIL) SIDE D614 D894 P807B R892 D611 P106 R693 D895 BB20 R152 BB10 R155 D896 D612 R155 R152 R154 D612 R612 Q612 D101 D897 T802 Q153 D615 R687 GJ151 R614...
  • Page 33 All manuals and user guides at all-guides.com OPSS SCALER BOARD (46HM84:PD1870C1 52HM84:PD1870A1 62HM84:PD1870B1) (UD02) BOTTOM (FOIL) SIDE - 37 - - 38 -...
  • Page 34 All manuals and user guides at all-guides.com OPSS SCALER BOARD (46HM84:PD1870C1 52HM84:PD1870A1 62HM84:PD1870B1) (UD02) TOP (COMPONENT) SIDE - 39 - - 40 -...
  • Page 35: Terminal View Of Transistors

    All manuals and user guides at all-guides.com 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 RN2201 2SD2253 RN2004 2SD1556 2SD2553 RN1203 RN1204...
  • Page 36: Schematic Diagram

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM MODEL : 46HM84/52HM84/62HM84 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 37 All manuals and user guides at all-guides.com SCHEMA TIC DIAGRAM STRUCTURE: BACK AV Circuit (1/5) [ SHEET - 1/5 ] ..1/52 (2/5) [ SHEET - 2/5 ] ..2/52 (3/5) [ SHEET - 3/5 ] ..3/52 (4/5) [ SHEET - 4/5 ] ..4/52 (5/5) [ SHEET - 5/5 ] ..
  • Page 38 All manuals and user guides at all-guides.com - 44 -...
  • Page 39: Specifications

    Specifications • Design and specifications are subject to change without notice. Television System Dimensions NTSC standard 46HM84: Width 53-1/8 inches (1,349 mm) Height 31-13/16 inches (808 mm) Channel Coverage Depth 15-1/4 inches (387 mm) VHF: 2 through 13 52HM84: Width 58-3/8 inches (1,483 mm)
  • Page 40 All manuals and user guides at all-guides.com...

This manual is also suitable for:

52hm8462hm84