Toshiba 37XV553D Service Manual
Toshiba 37XV553D Service Manual

Toshiba 37XV553D Service Manual

Lcd color television

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SERVICE MANUAL
LCD Color Television
37XV553D
Ver. 2.00
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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Summary of Contents for Toshiba 37XV553D

  • 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

    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: Precautions For Handling The Lcd Module

    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 U05A MAIN (DIGITAL) POWER U03A AC SW U04A LED U04B RMT...
  • Page 27 MAIN BOARD REMOTE RECEIVER OPTICAL SENSOR DDRII RAM*2 PANEL FLI32626 Sequoia ATV(V) VBI Data Processor TCON CVBS PANEL I/F R/G/B/FB EXT1 Video (SCART) Analog TVOUT V 75ohm Front Decoder Driver TVOUT L/R CVBS/RGBFB/SY/SC/(Y/Cb/Cr) or (RGBHV) (16port) DCDi LVDS MADi CVBS/S(Y/C) Scaling 75ohm EXT2...
  • 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 143: 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 144 Displaying the Adjustment Menu Press MENU button on TV. Service Mode Press ↑ ↓ Press Adjustment Mode...
  • Page 145 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 146: 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 147 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 148: Function Description

    To return Bus on status, press and hold the CALL button on the remote control, then press the Volume + button on the TV again. TV will be turned off and automatically turned on, then status will be Bus On. Setting TVOP Enter to service mode and select menu of TVOP by pressing P or P...
  • Page 149 46XV550P SAMSUNG 0x86 0x4A 52XV550P SAMSUNG 0x86 0x4B Ex. OPT4 value 0x86 indicates that panel vendor is SAMSUNG. OPT4 (bit7) (bit6) (bit5) (bit4) (bit3) (bit2) (bit1) (bit0) Panel vendor SHARP AUO PMVA AUO AMVA SAMSUNG Panel Full HD Resolution WXGA Ex.
  • Page 150 Backlight Positive Status Logic Negative Backlight Execute Status Check Unexecuted Convert from Bit (Binary) to Hex 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.
  • Page 151: Exit From Service Mode

    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 After replacing QA02 or signal board, the following initialization is required. CAUTION: Never attempt to initialize the data unless QA02 has been replaced.
  • Page 152 model id set is correct. If not, repeat steps 1) to 6). Note: In case initialization by setting wrong MODEL ID is done, there is a possibility of abnormal display. 8) Set I2C check function of TVOP to enable. 9) Check the picture carefully. If necessary, adjust any adjustment item above. Perform "Auto tune"...
  • Page 153 0x23 0x24 0x25 0x26 0x27 0x28 0x29 0x30 0x31 0x32 0x33 Initializing Data setting flowchart after replacing the Signal Unit...
  • Page 155: 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 156 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 157 V1 - V9 : VIDEO 1-9 input mode : PC mode : YUV mode : DTV mode (SCART (FULL)) (SCART (S+AV)) (Component) (Composite) HDMI1 HDMI2 DTV DTV (Digital Only) Version Check Mode 1. Press "9" button twice on remote control during display of adjustment menu in the service mode.
  • Page 158 (5) HDMI ID : HDMI ID information : Display 4 byte data. (6) SW Ver 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...
  • Page 159 Right side is Firmware (Driver) version information of DB software. (Only digital model.) (8) A/D Adjust A/D adjustment item. --MAIN : It's enable only in double Window model. A/D adjustment status of main picture. --SUB : It's enable only in double Window model. A/D adjustment status of sub picture.
  • Page 160 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 161: Screen Size

    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. Exact Scan Wide Super Live 2 Cinema 2 Super Live 1 Cinema 1 Subtitle 14:9 Note:...
  • Page 162 (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 163: Led Indication

    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 (DTV = 100, VIDEO = 101, VIDEO = 102..)
  • Page 164 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 165 TECHNICAL BULLETIN File Name Title issuing date...
  • Page 167: 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 169: 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 170 : 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 171 PARTS LIST ↓Select Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. :...
  • Page 172 PARTS LIST All Block Block : Search 1 / 131 Jump Page : Location : Search Parts No. : Block Location Parts No. Description U03A AC-SW (PE0533) U03A 75012739 PC BOARD ASSY, PE0533B1, AC-SW U03A AC-SW (PE0533) F850 75005842 FUSE, CARTRIDGE 5.2X20, FSL 250V 6.3A (EM) U03A AC-SW (PE0533) F850A 23165433 FUSE HOLDER, 5.2...
  • Page 173 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 75012739 PC BOARD ASSY, PE0533B1, AC-SW U03A AC-SW (PE0533) F850 75005842 FUSE, CARTRIDGE 5.2X20, FSL 250V 6.3A (EM) U03A AC-SW (PE0533) F850A...
  • Page 174 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 175 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 176 PARTS LIST U05AS MAIN (PE0535) Block : Search 1 / 125 Jump Page : Location : Search Parts No. : Block Location Parts No. Description U05AS MAIN (PE0535) U05AS 75012936 PC BOARD ASSY, PE0535B, MAIN U05AS MAIN (PE0535) B320 75011088 SCREW, SFS-4S-B1WM U05AS MAIN (PE0535) B321 75011088 SCREW, SFS-4S-B1WM...
  • Page 177 PARTS LIST U06A KEY (PE0560) Block : Search 1 / 2 Jump Page : 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 23362042 DIODE, ZENER, UDZS6.8B...
  • Page 178 PARTS LIST Miscellaneous Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Miscellaneous B001A 75011199 LCD PANEL, LC370WUN-SAB1 Miscellaneous H001 75010735 TUNER, ENG37E05KF Miscellaneous MZ01A 75011200 WIRE HARNESS, MF0160 Miscellaneous P801 23372353 POWER CORD, UK 250V3A FL/FUSE13...
  • Page 179 PARTS LIST Accessory Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Accessory Y101 75012898 OWNERS MANUAL, ENGLISH Accessory Y101E 75012900 OWNERS MANUAL, EURO Accessory Y101N 75012901 OWNERS MANUAL, NORDIC Accessory Y105 75010347 OWNERS MANUAL, STD EU...
  • Page 180 PARTS LIST Cabinet Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Cabinet A201 75011539 FRONT BEZEL ASSY Cabinet A342 75011097 BUTTON ASSY, POWER Cabinet A401 75011151 BACK COVER ASSY Cabinet A412 75010345 SCREW, BITTB3X8 SBN...
  • Page 181 PARTS LIST Packing Block : Search 1 / 1 Jump Page : Jump Location : Search Parts No. : Block Location Parts No. Description Packing A701 75012845 CARTON BOX, TPO Packing A702A 75012746 PAD, TOP PACKING Packing A702B 75012747 PAD, BOTTOM PACKING...
  • Page 182: Function And Operation

    FUNCTION AND OPERATION The Remote Control Simple at-a-glance reference of your remote control.
  • Page 185: 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...
  • Page 186 Using the Remote Control Using the Controls and Connections...
  • Page 187 FUNCTION AND OPERATION Tuning Analogue Mode Quick Setup...
  • Page 188: Manual Tune

    Manual Tune...
  • Page 191: Programme Skip

    Programme Skip...
  • Page 193 Sorting Programme Positions Using Auto Tuning...
  • Page 195: Specification

    SPECIFICATION...

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