Toshiba 37CV500P Service Manual
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Toshiba 37CV500P Service Manual

Toshiba 37CV500P Service Manual

Lcd color television
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SERVICE MANUAL
LCD Color Television
37CV500P
Ver. 2.01
This model is classified as a
green product
(*1), as indicated by the underlined serial number.
This Service Manual describes replacement parts for the green product. When repairing this
green product, use the part(s) described in this manual and
lead-free solder
(*2).
GREEN PRODUCT PROCUREMENT
LEAD-FREE
For (*1) and (*2), refer to
and
SOLDER.
© TOSHIBA CORPORATION

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  • Page 1 This Service Manual describes replacement parts for the green product. When repairing this green product, use the part(s) described in this manual and lead-free solder (*2). GREEN PRODUCT PROCUREMENT LEAD-FREE For (*1) and (*2), refer to SOLDER. © TOSHIBA CORPORATION...

  • Page 2: Important Notice

    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: Internet Explorer Settings

    IMPORTANT NOTICE User's Guide Contents: Install Autodesk DWF Viewer Internet Explorer Settings Operating Environment Functions Provided on Each Drawing Page Using with Network Install Autodesk DWF Viewer Autodesk DWF Viewer is necessary to view drawings and to activate the functions of this system. Please download and install.
  • Page 4 [My Computer (right-click)] - [Properties] 2. Internet Explorer setting [Tools] - [Internet Options]...
  • Page 5 for Internet Explorer 7...

  • Page 6: Operating Environment

    for Windows Vista Operating Environment : Pentium III or higher recommended Monitor : 1024 x 768 or higher resolution recommended Mouse : A mouse with wheel recommended : Microsoft Windows 2000 SP4 / XP / Vista Browser Microsoft Internet Explorer 6.0 / 7.0 Drawing viewer : Autodesk DWF Viewer 6.0 / 7.0 * Use the software following respective license terms and conditions.
  • Page 7 Functions Provided on Each Drawing Page Parts Information Reference Function When the character string of a part on the drawing is clicked, its information is popped up at the location. You can get any parts information immediately on the screen without referring to the maintenance parts list. Parts Search Function You can search any part within the displayed drawing or within the whole schematic diagram/board view by specifying a location number.
  • Page 8 Using with Network PRECAUTION To use ZEUS Service Manual Ver.2 with network, the file-path names written on the source files of each ZEUS Engine Program Ver.2 and ZEUS Service Manual Ver.2 are to be modified. Perform the procedure described below. Preparation 1.
  • Page 9 Procedure of File-Path The zeusFPch is the exclusive program to exchange the file-path names written in both source files of ZEUS Manual and ZEUS Engine program into those applicable to the network use. 1. Whenever changing the file-path of both ZEUS Engine Program and ZEUS Service Manual to use with network, pay the attention to set the "Exchange to"...
  • Page 10 Run the zeusFPch and set "Exchange to" by referring to the examples below. Example 1 : In the "Exchange to" column shows the relation between ZEUS Service Manual and ZEUS Engine Program. ../ counts the relation between. Thus in this case, it must be ../../zeus/ (2 counts). Example 2 : In this case, it must be ../../../zeus/ (3 counts).
  • Page 11 2. Run the zeusFPch to change the path in the ZEUS Engine Program Ver.2. 3. Set ZEUS Engine Program in the created folder in the server to the "Target Folder", and then press "START". (This procedure is one time only)
  • Page 12 4. Run the ZeusFPch to change the path in the ZEUS Service Manual Ver2. 5. Set unzipped ZEUS Service Manual in the created folder in the server to the "Target Folder", and then press "START". (This procedure is required whenever placing service manual.)
  • Page 13 Confirmation Confirm that service manual on the server can be operated normally by client PC. Note: In case of accessing the ZEUS Manual through WEB site, the small pop-up window appears at the left bottom corner on the screen whenever searching the location links. This is not malfunction.
  • Page 14 Through WEB, ver. 6.5 has been released but with it, the linking function in this manual may not work properly. If ver. 6.5 has been installed, uninstall it and reinstall ver. 6.0. To get ver. 6.0, click the icon, or contact to the nearest Toshiba Service Centre for further assistance. Freezing windows opened (Cannot close the open windows) This may happen occasionally.
  • Page 15 The real cause has not been found yet but with this condition, nothing disturbs the service manual operation. Continue to use by operating the windows. Precaution when opening the diagrams While opening the diagrams, the menu in the left frame changes its color to GRAY. This is an indication that the viewer is processing.

  • Page 16: Green Product Procurement

    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. In line with this, Toshiba proactively promotes Green Procurement, and seeks to purchase and use products, parts and materials that have low environmental impacts.

  • Page 17: Lead-Free Solder

    LEAD-FREE SOLDER This product is manufactured using lead-free solder as a part of a movement within the consumer products industry at large to be environmentally responsible. Lead-free solder must be used in the servicing and repair of this product. WARNING: This product is manufactured using lead free solder.
  • Page 18 SAFETY INSTRUCTION WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" INSTRUCTIONS BELOW. Safety Precaution WARNING: SERVICING 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.
  • Page 19 6. Always use the replacement parts specified for the particular model when making repairs. The parts used in products require special safety characteristics such as inflammability, voltage resistance, etc. therefore, use only replacement parts that have these same characteristics. Use only the specified parts when the mark is indicated in the circuit diagram or parts list.
  • Page 20 Resistance values in orms ( ). V: Voltmeter or oscilloscope (r.m.s. or peak reading) Input resistance : Input capacitance : 200 pF Frequency range : 15 Hz to 1 MHz and d.c. respectively Note: Appropriate measures should be taken to obtain the correct value in case of non sinusoidal waveforms.

  • Page 21: Product Safety Notice

    - for d.c. : = 1.0 V Note: The limit values of = 0.35 V (peak) for a.c. and = 1.0 V for d.c. correspond to the values 0.7 mA (peak) a.c. and 2.0 mA d.c. Product Safety Notice Many electrical and mechanical parts in this chassis have special safety-related characteristics.

  • Page 22: Safety Instruction

    SAFETY INSTRUCTION Handling the LCD Module Safety Precaution In the event that the screen is damaged or the liquid crystal (fluid) leaks, do not breathe in or drink this fluid. Also, never touch this fluid. Such actions could cause toxicity or skin irritation. If this fluid should enter the mouth, rinse the mouth thoroughly with water.
  • Page 23 because any impact can adversely affect the performance. Also use caution when handling the polarized screen because it can easily be damaged. 3. If the panel surface becomes soiled, wipe with cotton or a soft cloth. If this does not remove the soiling, breathe on the surface and then wipe again.
  • Page 24 6. CMOS-LSI circuitry is used in the LCD module, so avoid damage due to static electricity. When handling the module, use a wrist ground or anchor ground. 7. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for an extended period of time.
  • Page 25 9. Do not disassemble the LCD module. Such actions could result in improper operation. 10. When transporting the LCD module, do not use packing containing epoxy resin (amine) or silicon resin (alcohol or oxim). The gas generated by these materials can cause loss of polarity.
  • Page 26 U06A U01A U05A MAIN POWER U03A AS SW 　 U04A LED 　 U04B RMT...
  • Page 27 Digital Block Audio L/R IC651 CVBS Audio Amp PJ700 DVB-CIx1 ITU-R656 IC650 Audio DAC IC100 IC701~IC714 Level sift Donau TC90403FG Logic IC IC107 MAIN BOARD X8001 256Mbit 20.48MHz Clock DDRSDRAM COFDM Demod EBIF IC110 64Mbit Flash RESET UART IC102 M_TVRESE Reset CLK(27MHz) X1001...

  • Page 28: Schematic Diagram

    SCHEMATIC DIAGRAM Precaution WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION" FOR DIRECT VIEW CTV ONLY, "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" 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 29 Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in µF, and the values more than 1 in pF. All capacitors are ceramic 50 V, unless otherwise noted as the following marks. = Electrolytic capacitor = Mylar capacitor 3.

  • Page 119: Service Mode

    ADJUSTMENT Service Mode Entering to Service Mode 1. Set VOLUME to minimum and press button once on remote control. ↓ 2. Press button again and hold button down. ↓ Service Mode display 3. While holding the button, press MENU button on TV set.
  • Page 120 Displaying the Adjustment Menu Press MENU button on TV. Service Mode Press ↑ ↓ Press Adjustment Mode...
  • Page 121 Key Function in the Service Mode The following key entry during display of adjustment menu provides special functions. CAUTION: Never try to perform initialization unless you have changed the memory IC. button (on remote control) Test signal selection Selection of the adjustment items (on TV or remote control) Volume +/- (on TV or remote control)

  • Page 122: Setting & Adjusting Data

    SETTING & ADJUSTING DATA [ SERVICE MODE ] ADJUSTING ITEMS AND DATA IN THE SERVICE MODE: Note: The image system data of RCUT-BDRV is different by each image format. The PAL value is indicated in the table. Never adjust H.POS and V.POS except PAL/WIDE mode. Item Name of adjustment RCUT...
  • Page 123 OPT2 TV SET OPTION 2 OPT3 TV SET OPTION 3 OPT4 TV SET OPTION 4 (PANEL OPT DATA FOR VENDOR) OPT5 TV SET OPTION 5 (PANEL OPT DATA FOR SIZE) OPT6 TV SET OPTION 6 (HOTEL MODE) OPT7 TV SET OPTION 7 (HOTEL MODE) OPT8 TV SET OPTION 8 (HOTEL MODE) TVOP...

  • Page 124: Function Description

    Panel option data Series Model name Panel vendor OPT4 value OPT5 value CV504D/505D/ EU Digital 32CV504D/505D (SAM) 0x06 0x45 500P/501P 37CV504D/505D (LPL) 0x01 0x66 42CV504D/505D (LPL) 0x01 0x67 32CV500P/501P (SAM) 0x06 0x45 37CV500P/501P (LPL) 0x01 0x66 42CV500P/501P (LPL) 0x01 0x67...
  • Page 125 Ex. OPT4 value 0x05 indicates that panel vendor is AUO AMVA. OPT4 (bit7) (bit6) (bit5) (bit4) (bit3) (bit2) (bit1) (bit0) Panel vendor LPL AUO PMVA AUO AMVA SAMSUNG Ex. OPT5 value 0x06 indicates that panel size is 37. OPT5 (bit7) (bit6) (bit5) (bit4)

  • Page 126: Exit From Service Mode

    The table for converting from bit (D7-D0) to hex (0x**). BIT (Binary) High nibble Low nibble E.g. If Bit D7-0 = 0101 1010, Hex data is 0x5A. Exit from Service Mode Pressing POWER button to turn off the TV once. Initialization of Memory Data of QA02 and Setting Data of Signal Unit...
  • Page 127 After replacing QA02 or signal board, the following initialization is required. CAUTION: Never attempt to initialize the data unless QA02 has been replaced. Whenever using new signal board to the set, setting the Model ID data according to Panel option data. 1) Enter the service mode.
  • Page 128 0x01 32CV504D/505D SAM 0x02 37CV504D/505D LPL 0x03 42CV504D/505D LPL 0x04 32CV500P/501P SAM 0x05 37CV500P/501P LPL 0x06 42CV500P/501P LPL 0x07 0x08 0x09 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x20 0x21 0x22 0x23 0x24 0x25 0x26 0x27 0x28...
  • Page 129 0x32 0x33 Initializing Data setting flowchart after replacing the Signal Unit...

  • Page 131: Test Signal Selection

    Test Signal Selection Every pressing of button on the remote control changes the built-in test patterns on screen as described below in Service Mode. Picture Signal Red raster Green raster Blue raster All Black All White Self Diagnostic Function...
  • Page 132 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 display and Item are subject to the models. (1) Firmware : Version information of microprocessor Series name (AAAA) and market area (BB) and software program version (0000)
  • Page 133 V1 - V9 : VIDEO 1-9 input mode : PC mode : YUV mode : DTV mode (SCART (FULL)) (SCART (S+AV)) (Composite/Component/S) HDMI1 HDMI2 HDMI3 DTV (Digital Only) Version Check Mode 1. Press "9" button twice on remote control during display of adjustment menu in the service mode.
  • Page 134 (1) MAIN MPU : Version information of microprocessor Series name and Code Program Version (4 figure number) and OSD Version (2 figure number). (2) EEPROM : Version information of EEPROM : Display 1 byte data. (3) SUB MPU : Version information of SUB MPU : Display 1 byte data. Left side means QF01 (for AV-LINK) micon software version.
  • Page 135 Version information of DB software as Toshiba release. (Only digital model.) (7) MW Ver Left side is Application and UI version information of DB software. (Only digital model.) Right side is Firmware (Driver) version information of DB software. (Only digital model.)
  • Page 136 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 be checked. 2. During Status Check, the following displays are shown. * Status check display and Item are subject to the models. (1) MAIN : Main source information : Display RF position number (0 - 99) on the main screen, or Input Source...

  • Page 137: Screen Size

    (5) SUB FORMAT : Display Video and PC format information This item displays only Double window model. (6) SUB PLL : Sub PLL information : Display 1 byte data at five. This item displays only Double window model. (7) SCREEN SIZE : Display the screen size as follows.

  • Page 138: Function Description

    OPT2 FUNCTION DESCRIPTION (Normal) D7 (bit7) - (no use) D6 (bit6) Enable mode that TV On will be appeared in Enable Disable forced when turning the main power ON D5 (bit5) FRONT Key Disable Enable D4 (bit4) All keys except input selector key Disable Enable (Video/TV)
  • Page 139 OPT6 FUNCTION DESCRIPTION 0 (Normal) D7 (bit7) Enable mode that POS or VIDEO program Enable Disable number will be appeared in forced when turn ON the main power D6 (bit6) ~ POS or VIDEO program number 0 ~ 127 [decimal] (Normal: 0) D0 (bit0) POS number: 0 ~ 99 VIDEO number: 100 ~ 127...

  • Page 140: Led Indication

    LED Indication The Green and Red LEDs on the TV (at the bottom center of the TV) indicate the TV's status, as described below. Red ON (solid) and Green OFF = The TV power cord is plugged in.
  • Page 141 TECHNICAL BULLETIN File Name Title issuing date...

  • Page 143: Panel Identification

    PANEL IDENTIFICATION Panel Identification If the several panels are alternatively used in the same model without amending the model name, the identification marking will be shown at the last digit of the set serial number on the specification label on the back cover. In servicing, do not alter the panel because several setting and parts are different.

  • Page 145: Parts List

    PARTS LIST Precaution WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION" FOR DIRECT VIEW CTV ONLY, "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" 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 146 : Carbon Composition : Variable Resistor : Electrolytic : Metal Film : Fusible Resistor All CD and PF capacitors are ±5 %, 50 V and all resistor, ±5 %, 1/6 W unless otherwise noted.
  • Page 147 PARTS LIST ↓Select Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. :...
  • Page 148 PARTS LIST All Block Block : Search 1 / 109 Jump Page : Location : Search Parts No. : Block Location Parts No. Description U01A POWER (PE0531) U01A 75011626 PC BOARD ASSY, PE0531E1, POWER U01A POWER (PE0531) C801 76503513 CAPACITOR, PLASTIC FILM, LE474-C U01A POWER (PE0531) C802 76503510 CAPACITOR, PLASTIC FILM, LE224-C...
  • Page 149 PARTS LIST U01A POWER (PE0531) Block : Search 1 / 19 Jump Page : Location : Search Parts No. : Block Location Parts No. Description U01A POWER (PE0531) U01A 75011626 PC BOARD ASSY, PE0531E1, POWER U01A POWER (PE0531) C801 76503513 CAPACITOR, PLASTIC FILM, LE474-C U01A POWER (PE0531) C802 76503510 CAPACITOR, PLASTIC FILM, LE224-C...
  • Page 150 PARTS LIST U03A AC-SW (PE0533) Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description U03A AC-SW (PE0533) U03A 75011068 PC BOARD ASSY, PE0533A1, AC-SW U03A AC-SW (PE0533) F850 75005842 FUSE, CARTRIDGE 5.2X20, FSL 250V 6.3A (EM) U03A AC-SW (PE0533) P801B...
  • Page 151 PARTS LIST U04A LED (PE0534) Block : Search 1 / 2 Jump Page : Location : Search Parts No. : Block Location Parts No. Description U04A LED (PE0534) U04A 75011070 PC BOARD ASSY, PE0534A1, LED U04A LED (PE0534) CB06 76100104 CAPACITOR, CERAMIC CHIP, 25V F 0.1UF Z U04A LED (PE0534) CB07 76619157 CAPACITOR, ELECTROLYTIC CHIP, 16V 100UF...
  • Page 152 PARTS LIST U04B RMT (PE0534) Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description U04B RMT (PE0534) U04B 75011071 PC BOARD ASSY, PE0534A2, RMT U04B RMT (PE0534) CB02 76619157 CAPACITOR, ELECTROLYTIC CHIP, 16V 100UF U04B RMT (PE0534) CB03...
  • Page 153 PARTS LIST U05AS MAIN (PE0532) Block : Search 1 / 85 Jump Page : Location : Search Parts No. : Block Location Parts No. Description U05AS MAIN (PE0532) U05AS 75011317 PC BOARD ASSY, PE0532A, MAIN U05AS MAIN (PE0532) B320 75011088 ACCESSORY FOR SCREW U05AS MAIN (PE0532) B321 75011088 ACCESSORY FOR SCREW...
  • Page 154 PARTS LIST U06A KEY (PE0560) Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description U06A KEY (PE0560) U06A 75011072 PC BOARD ASSY, PE0560A1, KEY U06A KEY (PE0560) GB01 23362042 DIODE, ZENER, UDZS6.8B U06A KEY (PE0560) GB02...
  • Page 155 PARTS LIST Miscellaneous Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Miscellaneous B001A 75011157 DISPLAY, LC370WXN-SAC1 Miscellaneous H001 75011095 TUNER, ENG37E11GF Miscellaneous MZ01A 75011158 WIRE HARNESS, MF0131 Miscellaneous P801 23372353 POWER CORD, UK 250V3A FL/FUSE13...
  • Page 156 PARTS LIST Accessory Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Accessory Y101 75011107 OWNERS MANUAL, ENGLISH Accessory Y101E 75011109 OWNERS MANUAL, EURO Accessory Y101N 75011110 OWNERS MANUAL, NORDIC Accessory Y102E 75011111 OWNERS MANUAL, E-EURO...
  • Page 157 PARTS LIST Cabinet Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Cabinet A201 75011180 CABINET/RACK FRONT BEZEL ASSY, FRONT BEZEL ASSY Cabinet A342 75011097 BUTTON ASSY, POWER Cabinet A401 75011151 CABINET/RACK BACK COVER ASSY, BACK COVER ASSY...
  • Page 158 PARTS LIST Packing Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Packing A701 75011181 CARTON TOP CASE, TOP CASE Packing A702A 75011153 PAD TOP PACKING, TOP PACKING Packing A702B 75011154 PAD BOTTOM PACKING, BOTTOM PACKING...

  • Page 159: Function And Operation

    FUNCTION AND OPERATION The Remote Control...

  • Page 162: Controls And Input Connections

    FUNCTION AND OPERATION Controls and Input Connections A wide variety of external equipment can be connected to the input sockets on the side of the television. Whilst all the necessary adjustments and controls for the television are made using the remote control, the buttons on the television may be used for some functions. Switching On Using the Remote Control...

  • Page 163: Using The Controls And Connections

    Using the Controls and Connections...

  • Page 164: Tuning The Television

    FUNCTION AND OPERATION Tuning the Television Before switching on the television put your decoder and media recorder to Standby if they are connected. To set up the television use the buttons on the remote control. Quick Setup...

  • Page 166: Manual Tune

    Manual Tune...

  • Page 169: Using Auto Tuning

    Using Auto Tuning...

  • Page 171: Specification

    SPECIFICATION...

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