Toshiba 46HM84 Service Manual
Projection television
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Also See for 46HM84:
- Owner's manual (71 pages) ,
- Schematic diagram (55 pages) ,
- Service manual (40 pages)
Related Manuals for Toshiba 46HM84
Summary of Contents for Toshiba 46HM84
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Page 1: Service Manual
FILE NO. 020-200401 REVISED.2 SERVICE MANUAL Projection Television 46HM84 52HM84 62HM84 Published in Japan, Jan. 2005 (YC) DOCUMENT CREATED IN JAPAN, Jan., 2005... -
Page 2: Table Of Contents
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 ............................12 LIGHT ENGINE REPLACEMANT.......................... -
Page 3: Chapter 1 General Adjustments
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. 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, press MENU button on TV set. on Remote Control. again and keep pressing. MUTE (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV. - Page 5 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. SELF CHECK NO.
- Page 6 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. TV/VIDEO EXIT CHANNEL...
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Page 7: Chapter 2 Specific Informations
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 G CUTOFF TVOP TV OPTION... -
Page 8: Location Of Controls
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 • Green and Red Remote sensor LED indicators* Channel zy... -
Page 9: Remote Control
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 switches between TV, CBL/SAT, VCR and DVD Device Switch Set to “TV”... -
Page 10: Programming Channel Memory
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: Adding And Erasing Channels Manually
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
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. 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 13 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 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.
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Page 15: 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 : PJ-TB25-46/52/62 (Including with SK02 to SK08) CWDL CWDH SK01: PJ-TB-25-46S/52S/62S (Including with SK03 to SK08 except SK02) When CW delay number of the data bar code is 0450: LIGHT ENGINE is a heart of the TV and emits high heat. - Page 16 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...
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Page 17: Parts Replacement In Light Engine
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. For replacing FAN for cooling lamp (SK06), detach CAUTION FAN hood located on LIGHT ENGINE by removing 2 Precautions When Exchanging Ballast Power Units... - 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.
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Page 19: Exploded View
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 UA02 2 screws W662... -
Page 20: Mechanical Disassembly
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 4 screws W661 W662... -
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 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 24214221 CERAMIC DISC, 500V B 220PF K...
- Page 23 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 CY514 24092730 CERAMIC CHIP, 16V B 0.1UF K...
- Page 24 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 R8951 24366103 CARBON FILM, 1/6W 10K OHM J...
- Page 25 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 L103 23289844 COIL, PEAKING, TRF4470AT...
- Page 26 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 DIODE, 1SS355 Q862 23000823 IC, PHOTO COUPLER, TLP421F(GR) Q881...
- 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 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 23532769 COVER, LAMP TUNNEL PURCHASE ASY A026 23428292...
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Page 29: Pc Boards Top And Bottom View
BACK AV BOARD PD1774A (U103) BOTTOM (FOIL) SIDE PV04 PB60 PS01 PV14 CV253 11 10 9 5 4 3 2 1 RY587 RY596 RY594 CV253 DV250 PX18 PX19 DV249 DV01 CV254 DV244 CV255 DV03 QV009 QV009 DV250 DV05 DV249 RV32 DV07 RY588 RV330... - Page 30 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 CV14 CV14 RY576 RV15 RY505 CV47 RV17...
- Page 31 MAIN POWER BOARD PD1773A-1 (U802) BOTTOM (FOIL) SIDE F8210 P891 D883 R888 1.5A 125V L890 D866 R885 C883 D865 R866 C884 L861 B1-V-0 Q862 P892 R869 D883A L881 R887 Q881 C886 R886 Q8210 Q801A D884 L892 F881 DDcon 3.4V C8215 500mA 125V D886 L882...
- Page 32 IF AUDIO BOARD PD1775 (U101) BOTTOM (FOIL) SIDE D614 P807B D894 R892 R693 D611 P106 D895 R152 BB10 BB20 D896 R155 D612 R155 R152 R154 D612 R612 Q612 D101 D897 T802 Q153 D615 GJ151 R687 R614 Q612 R614 CY102 R613 R611 Q601A R613...
- Page 33 OPSS SCALER BOARD (46HM84:PD1870C1 52HM84:PD1870A1 62HM84:PD1870B1) (UD02) BOTTOM (FOIL) SIDE - 37 - - 38 -...
- Page 34 OPSS SCALER BOARD (46HM84:PD1870C1 52HM84:PD1870A1 62HM84:PD1870B1) (UD02) TOP (COMPONENT) SIDE - 39 - - 40 -...
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Page 35: 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 - 41 -... -
Page 36: Schematic Diagram
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 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 ] ..
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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)