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Toshiba 52HMX84 Service Manual

Projection television
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SERVICE MANUAL
Projection Television
FILE NO. 020-200418
52HMX84
62HMX84
DOCUMENT CREATED IN JAPAN, Aug., 2004

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Summary of Contents for Toshiba 52HMX84

  • Page 1 FILE NO. 020-200418 SERVICE MANUAL Projection Television 52HMX84 62HMX84 DOCUMENT CREATED IN JAPAN, Aug., 2004...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS .............................. 3 SERVICE MODE ................................4 ELECTRICAL ADJUSTMENT ............................7 SPECIFIC INFORMATIONS CHAPTER 2 SETTING & ADJUSTING DATA ............................8 LOCATION OF CONTROLS ............................9 PROGRAMMING CHANNEL MEMORY ........................11 LAMP UNIT REPLACEMENT ............................13 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 TO 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 to 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 are executed properly. 2) During diagnosis, the following displays are shown. SELF CHECK NO.
  • Page 6 7. LED indicationsn 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...

  • Page 7: Electrical Adjustment

    ELECTRICAL ADJUSTMENT DLE-PJTV (52HM84) Adjustment Method Adjustment ITEM Process /Instructions Remark 1. Make TV to be in 'M'. [OSD INDICATION] Offset Voltage 2. Connect 10 Step video signal (1080i) to 'Color During Adjustment ; 'A/D ADJUSTING' (Scaler board) Stream1'. After Finish adjusting ; 3.

  • Page 8: 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 OPT2 TV SET OPTION GCUT G CUTOFF TVOP TV OPTION BCUT...

  • Page 9: Location Of Controls

    LOCATION OF CONTROLS 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 control sensor Channel zy LED indicators* (Behind the screen)

  • Page 10: Remote Control

    Remote Control turns the TV on and off. POWER Press POWER to turn the TV on. The Red LED indicator will be illuminated. Press POWER again to turn the TV off. Note: If the Quick Restart feature is in OFF mode, it can take up to several seconds for the picture to appear.

  • Page 11: 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 12: 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 13: Lamp Unit Replacement

    LAMP UNIT REPLACEMENT Cautions when replacing LAMP UNIT 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 14 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 15 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.

  • Page 16: Light Engine Replacemant

    LIGHT ENGINE REPLACEMENT 1-2. Adjustment is made by service mode. The adjusting Cautions when replacing LIGHT ENGINE items consist of CWDL, CWDH and DMDB. LIGHT ENGINE is a heart of TV which emits high heat. CWDL CWDH Make sure to replace it after turning off the TV and wait for sufficient cool down.
  • Page 17 Conversion Table for Decimal and Hexadecimal Numbers CW delay number CWDH CWDL CW delay number CWDH CWDL CW delay number CWDH CWDL CW delay number CWDH CWDL CW delay number CWDH CWDL 0000 0375 0750 1125 1500 0005 0380 0755 1130 1505 0010...

  • Page 18: Parts Replacement In Light Engine

    PARTS REPLACEMENT IN LIGHT ENGINE 2-3. Detach the ballast power unit by removing 4 substrate FAN Replacement stoppers that hold the ballast power unit. 1-1. For replacing FAN for cooling heatsink, remove 2 screws. For replacing FAN for cooling lamp, detach FAN hood CAUTION located on LIGHT ENGINE by removing 2 screws and Precautions When Exchanging Ballast Power Units...

  • Page 19: Exploded View

    EXPLODED VIEW W661 12 screws 4 screws K601 12 screws A101 12 screws W662 4 screws 2 screws 1 screw UV03 A227 4 screws A333 A201 A222 A101 A278 3 screws A271 A215 A204 2 screws 2 screws 13 screws - 20 -...

  • Page 20: Mechanical Disassembly

    MECHANICAL DISASSEMBLY 1 Bezel Ass'y Removal 2 Mirror Removal 12 screws K601 (MIRROR) A101 A201 4 screws 12 screws 3 Back Cover Removal 4 Speaker & Touchpad Removal A101 4 screws A204 4 screws 2 screws A227 1 screw A333 A222 13 screws 5 Bracket Removal...

  • Page 21: Chassis And Cabinet 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 : 52HMX84/62HMX84 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 22 Location Location Parts No. Description Parts No. Description C8240 24073038 ELECTROLYTIC, 16V 100UF M 3A CV04 24100104 CERAMIC CHIP, 25V F 0.1UF Z C8241 24503047 PLASTIC FILM, 63V 0.33UF J CV05 24092621 CERAMIC CHIP, 10V B 1UF K C8242 24073141 ELECTROLYTIC CE04P 10V 1000UF M 3A CV06 24092621...
  • Page 23 Location Location Parts No. Description Parts No. Description CY541 24761102 ELECTROLYTIC CE04G, 6.3V 1000UF M R847 24366473 CARBON FILM, 1/6W 47K OHM J CY582 24105101 CERAMIC CHIP, 50V CH 100PF J R848 24366102 CARBON FILM, 1/6W 1K OHM J R849 24552470 OXIDE METAL FILM, 1/2W 47 OHM J RESISTORS...
  • Page 24 Location Location Parts No. Description Parts No. Description RA85 24011102 CHIP, METAL FILM, 1/20W 1K OHM J RV03 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RA86 24011102 CHIP, METAL FILM, 1/20W 1K OHM J RV06 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RA87 24011102 CHIP, METAL FILM, 1/20W 1K OHM J...
  • Page 25 Location Location Parts No. Description Parts No. Description RY511 24011222 CHIP, METAL FILM, 1/20W 2.2K OHM J L885 23103145 FERRITE CHOKE, TEM2011AA RY512 24011222 CHIP, METAL FILM, 1/20W 2.2K OHM J L886 23103145 FERRITE CHOKE, TEM2011AA RY513 24011152 CHIP, METAL FILM, 1/20W 1.5K OHM J L888 23248321 COIL, CHOKE 15X23H 22MMH 4.2A TLN3462AH...
  • Page 26 Location Location Parts No. Description Parts No. Description Q8902 23314965 TRANSISTOR, KTC3198 Y D628 23316597 DIODE, ZENER, MA8120-M Q8904 23314962 TRANSISTOR, KTA1266 Y D801 23316393 DIODE, VRM=600V IO=6A SIP D5SB60, 4009 F05 Q8911 23314965 TRANSISTOR, KTC3198 Y D840 23357207 DIODE, LN1WBA60 Q8912 23314965 TRANSISTOR, KTC3198 Y...
  • Page 27 FERRITE CORE, TFE1012 UA06 23761341 PC BD ASSY, FRONT KEY 57HL83 PU PD1503 M811A 23103778 FERRITE CORE, TFE1008 UD02 #1 23148134 PC BOARD ASSY, SCALER 52HMX84 B910PD1870D1 M905A 23103778 FERRITE CORE, TFE1008 #2 23148135 PC BOARD ASSY, SCALER 62HMX84 B910PD1870E1 M905E 23103840...
  • Page 28 BRACKET, SPEED CLIP A305 23717197 SCREW, THUMB SCREW A306 23717198 SCREW, THUMB SCREW RETAINER A329 #1 23940118 PIECE, SCREEN FRAME DECO PIECE 52HMX84 #2 23940120 PIECE, SCREEN FRAME DECO PIECE 62HMX84 A333 23450837 PANEL, A/V MOUNT PURCHASE ASSY A401 23532768...
  • Page 29 BACK AV BOARD PD1774B (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 PD1774B (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 ACIN BOARD PD1775B (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...
  • Page 33 OPSS SCALER BOARD (52HMX84:PD1870D1 62HMX84:PD1870E1) (UD02) BOTTOM (FOIL) SIDE - 38 - - 39 -...
  • Page 34 OPSS SCALER BOARD (52HMX84:PD1870D1 62HMX84:PD1870E1) (UD02) TOP (COMPONENT) SIDE - 40 - - 41 -...

  • 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 - 42 -...

  • Page 36: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 52HMX84/62HMX84 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. 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 SCHEMATIC DIAGRAM STRUCTURE back_av (1/5) [SHEET-1/5] ....1/52 (audio_select) [SHEET-2/5] ....2/52 (video_select1) [SHEET-3/5] ....3/52 (video_select2) [SHEET-4/5] ....4/52 (wright_connection) [SHEET-5/5] ....5/52 front_av ..........................6/52 front_key (touch_control_panel) ..............7/52 if_audio (if/audio) [SHEET-1/4] ....8/52 (if/tif) [SHEET-2/4] ....9/52 (sound) [SHEET-3/4] ....
  • Page 38 - 45 -...

  • Page 39: Specifications

    This model may not be compatible with features and/or specifications that may be added in the future. Television System Dimensions NTSC standard 52HMX84: Width 58-3/8 inches (1,483 mm) Height 35-1/16 inches (890 mm) Channel Coverage Depth 15-1/4 inches (387 mm)
  • Page 40 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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62hmx84

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