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Toshiba 32W153xDx Service Manual

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SERVICE MANUAL
LCD Color Television
32W153xDx
32L153xDx
40L153xDx
32W154xDx
32L154xDx
40L154xDx
(System Information)
FILE NO. 050-2015003

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  • Page 1 FILE NO. 050-2015003 SERVICE MANUAL LCD Color Television 32W153xDx 32L153xDx 40L153xDx 32W154xDx 32L154xDx 40L154xDx (System Information)
  • Page 2: Table Of Contents

    CONTENTS 1. IMPORTANT NOTICE 2. GREEN PRODUCT PROCUREMENT 3. LEAD-FREE SOLDER 4. SAFETY INSTRUCTION 5. FIRMWARE UPDATING 6. HOTEL MODE / HOTEL CLONE 7. BLOCK DIAGRAM 8. SCHEMATIC DIAGRAM 9. TROUBLESHOOTING...
  • Page 3: Important Notice

    WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED 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...
  • Page 4: Green Product Procurement

    Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba 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.
  • Page 5: Safety Instruction

    (1 / 3) 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 6 (2 / 3) 8. Always ensure that all internal wirings are in accordance before re-assembling the external casing after a repairing completed. Do not allow internal wiring to be pinched by cabinets, panels, etc. Any error in reassembly or wiring can result in electrical leakage, flame, etc., and may be hazardous.
  • Page 7 (3 / 3) sinusoidal waveforms. The measuring instrument is calibrated by comparing the frequency factor of with the solid line in figure F.2 of IEC 60990 at various frequencies. A calibration curve is constructed showing the deviation of from the ideal curve as a function of frequency.
  • Page 8: Firmware Updating

    2. Turn power to OFF by mechanical switch or removing AC plug and plug the USB to TV. 3. Keep pressing and holding “OK” key from Toshiba remote controller and at the same time turn power to ON by mechanical SW and hold OK pressed until the standby led blinks very rapidly.
  • Page 9: Hotel Mode/Hotel Clone

    HOTEL MODE/HOTEL CLONE HOTEL TV MENU: To enter hotel menu, please open main menu by pressing MENU(M) button. When you code following password “7935”, hidden hotel TV menu appears. Figure 1 Hotel TV Menu...
  • Page 10 Hotel Mode Setting “Hotel Mode” item 'On' activates hotel mode. In other words user can do only what he/she is allowed to do. Restriction level can be determined by using other items on menu namely Volume Limit, Panel Button, OSD Disable. In hotel mode, users can not reach channel table and install menu so they could not change any program information.
  • Page 11 Volume Limit Sets the maximum value the volume can have. “Volume Limit” can take values between 0-63. Fixed Volume Enable Enables (Fixed Volume Enable = On) or prohibits (Fixed Volume Enable = Off) the use of fixed volume value which is set by menu item “Fixed Volume Value”. If Fixed Volume Enable is ON, volume cannot be set to a value other than the Fixed Volume Value.
  • Page 12 All Menus : All menus (MAIN, SOUND, PICTURE, SETTINGS, INSTALLATION) are invisible. OSD Disable = Disable Setup Menus : Only SETUP menus are invisible. Invisible Setup Menus are: Main menu: Installation, Channel list Settings menu: Parental, Sources, Other settings Teletext Enables (Teletext = On) or prohibits (Teletext = Off) the use of teletext (or MHEG if available) WakeUp Time Channel Wakeup time alarm is activated if the time of last played service is same to selected time but if this...
  • Page 13 Copy from USB device data to NVRAM: Just the reverse operation done by copy to USB call. Previously copied nvram files (“nvblock_ ..bin”) are copied into TV. If there is no flash file or some of them are available on USB, the available ones are copied. If no USB is connected, nothing happens. The files could be in a folder in the USB or it could be just in the root.
  • Page 14 On the bottom side of image there is an message (osd message) displaying “press any key”.This message is only visible when the customer sets via profile manager as Toshiba or Sharp, or if the softwares which uses Toshiba UI. For the other customers and ui options that warning is invisble.
  • Page 15 Internal Clock If hotel mode is active a new function (add wake up timer) will be available in Settings/Timers menu. That function will open a new menu to set wake up time. After timer is saved tv can wake up automatically on desired time.
  • Page 16: Block Diagram

    General Block Diagram...
  • Page 17 R2201 R2001 M_CI_OUTCLK CI_OUTCLK CLK_5135 C179 XTALI M_CI_INVALID CI_INVALID C490 C491 CI_D3 CI_CD1# M_CI_INSYNC CI_INSYNC CI_D4 CI_OUTDATA3 CI_D5 CI_OUTDATA4 C180 XTALO close to pcmcia M_CI_INDATA0 CI_INDATA0 CI_D6 CI_OUTDATA5 CI_D7 CI_OUTDATA6 M_CI_INDATA1 CI_INDATA1 CI_CE1# CI_OUTDATA7 XTALI CI_A10 CI_CE2# R2002 M_CI_INCLK CI_INCLK CI_OE# CI_VS1# 27MHz...
  • Page 18 AOSDATA0 TP59 TP60 AOBCK 3V3_AVCC 3V3_AVCC TP75 AOLRCK 100n C209 AVDD33_MEMPLL AVDD33_PLLGP AOMCLK TP58 100n near IC 3V3_AVCC R1984 HP_AMP_MUTE 3V3_STBY 100n AVDD33_HDMI_1_RX 1V2_MT5820 3V3_AVCC C257 100n 100n RDQ6 163 RDQ6 AVDD12_LVDSA AVDD33_CVBS AVDD12_LVDSA RDQ2 SPI_CLE RDQ2 GPIO2 SPI_DATA DDRV VCC2IO1 GPIO1 RDQ0...
  • Page 19 W/B2B R2219 C136 C1355 STP1 R2220 100n C197 100n C1371 CN32 TPS54329E TPS54329E 1 VBST S314 12V_STBY COMMON C357 1 VBST S315 12V_VCC F200 S302 power_pin9 C1375 C1178 C1144 C353 C215 VREG5 R165 12V_VCC S316 220n 220n C1343 C1342 VREG5 R2232 C1377 C1376...
  • Page 20 F172 R224 R219 S116 12V_VCC MAIN_L VDD_AUDIO MAIN_R R189 R182 C196 C253 C190 C252 3V3_VCC C795 C143 C674 C675 R238 100k R237 100k 220u 100u MAIN_DAC_L C1195 C1196 MAIN_DAC_R S200 24V_VCC_AU HP_NEG_RIGHT HP_NEG_LEFT 8W 30067972 5V_VCC 2w5 30069845 24V_VCC_AU 220R 5V_VCC S141 C1176...
  • Page 21 SLIM HEADPHONE OUTPUT SAV Slim INPUT C454 TP79 SC_CVBS-IN R125 TP32 TP30 S230 SC_CVBS-IN_pin20 MAIN_L SC_CVBS_OUT TP80 TP67 R126 TP33 S231 MAIN_R TP66 C452 R305 SAV_CVBS C451 SC_FB TP82 SAV_CVBS SC_R C5V6 SAV_L C267 TP187 SAV_L UART-TX JK13 SAV_L R302 R304 TP65 TP31...
  • Page 22 HDMI0 CN12 UA 100R OLMALI DDRV Near to pin 165 of MT5820 HDMI0_RX2P C291 C395 C320 C321 C1115 RWE_ B_RWE_ 100n 100n 330p 100n 330p 100n R265 RCAS_ B_RCAS_ DDRV HDMI0_RX2N RRAS_ B_RAS_ R266 HDMI0_RX1P RA12 B_RA12 100n HDMI0_RX1N R311 R312 DDRV DDRV...
  • Page 23 PANEL SUPPLY SWITCH FHD 50Hz 3D FFC OPTIONS TABLE S183 3D_EN 100u 3V3_VCC R514 PANEL_VCC OP_PIN5 R226 12V_VCC PANEL_VCC R515 5V_VCC PANEL_VCC OP_PIN6 PANEL_VCC R227 5V_VCC R516 LG BASED 30070519 PANEL_VCC OP_PIN7 R228 PANEL_VCC S186 MEGA_DCR_IN R517 PANEL_VCC PANEL_VCC OP_PIN8 R229 R222 BACKLIGHT_ON/OFF...
  • Page 24 D171 390nH 560nH GND1 AZ5425-01F 390n S317 C135 S318 RF_IN_P C1113 C322 C323 JK12 0.7pF S319 RF_IN_N 220nH C324 C109 180p ACT_ANT R784 3V3_TUNER MXL601_SCL MXL601_SDA C105 C270 R785 1.8nF D_IF_AGC IF_AGC C1401 100p 27MHz XTAL_N VDD_1P8_1 C104 XTAL_P VDD_3P3_1 3V3_TUNER GND_XTAL IF_OUTN_1...
  • Page 25 3V3_VCC DISEQC_OUT R2255 C1419 R2256 100n F217 C1428 S340 100nF 220n C1432 F216 D192 LNB_OUT LNB_OUT C1430 C1431 C1429 1N5819 VLNB FAULT C1427 C1426 C1425 C1417 EN/ADDR C1420 100n R2254 130k TPS65233 BOOST ISEL 100k C1418 PGND TCAP 100n C1424 22nF 12V_VCC S339...
  • Page 26 R305 12V RCD SNUBBER OPTION R306 XCAPS BA159 PINGOOD OPTIONS R308 47p 2kV C37 C315 ROCKER SWITCH 100n 220n 275V 275V 100n SB5100 275V 275V 12V_DC 275V 100n 470n +12Vdc OUTPUT 275V 275V 275V C309 C314 C310 C316 SB5100 12V_AC +12VCC 275V 275V...
  • Page 27 OUTPUT DIODE RC SNUBBER CIRCUIT C300 Tapped Coil Option CON_AC C50 V_LED+ C301 BOOST INPUT VOLTAGE +24VCC POWER BOARD to LED BARS CONNECTION +24VCC_SW LED DRIVER SB5100 V_LED+ 270R 25V 470n 470n BOOSTED OUTPUT V_LED+ SB5100 V_LED+ V_SW 330n 16V LED1_S BL_ON-OFF 270R...
  • Page 28 100R 100n 100n 100n xx335 LED BMS TOSHIBA 17ld171-r6 SCH NAME : T. SHT: <YOUR NAME HERE> DRAWN BY : 11-11-2014_10:33 A X M...
  • Page 29: Troubleshooting

    TROUBLESHOOTING (17MB82S) 1. No Backlight Problem Problem: If TV is working, led is normal and there is no picture and backlight on the panel. Possible couses: Backlight pin, dimming pin, backlight supply, stby on/off pin Backlight pin should be high in open position. If it is low, please check Q30 and panel cables.
  • Page 30 Dimming pin should be high or square wave in open position. If it is low, please check S16 for Mstar side and panel or power cables, connectors. Backlight power supply should be in panel specs. Please check CN4 for MB82, related connectors for power supply cards.
  • Page 31 STBY_ON/OFF should be low for standby on condition, please check R2090. 2. CI Module Problem Problem: CI is not working when CI module inserted. Possible couses: Supply, suply control pin, detect pins, mechanical positions of pins CI supply shoul be 5V when CI module inserted. If it is not 5V please check CI_POWER_CTRL, this pin should be low.
  • Page 32 Please check mechanical positions of CI module. Detect ports should be low. If it is not low please check CI connector pins, CI module pins and 3V3_VCC on MB82. 4/10...
  • Page 33 3. Led Blinking Problem Problem: LED blinking, no other operation This problem indicates a short on Vcc voltages. Protect pin should be logic high while normal operation. When there is a short circuit protect pin will be logic low. If you detect logic low on protect pin, unplug the TV set and control voltage points with a multimeter to find the shorted voltage to ground.
  • Page 34 4. IR Problem Problem: LED or IR not working Check LED card supply on MB82 chasis. 6/10...
  • Page 35 5. Keypad Touchpad Problems Problem: Keypad or Touchpad is not working Check keypad supply and KEYBOARD pin on MB82 6. USB Problems Problem: USB is not working or no USB Detection. Check USB Supply, It should be nearly 5V. 7/10...
  • Page 36 7. No Sound Problem Problem: No audio at main TV speaker outputs. Check supply voltages of VDD_AUDIO, 5V_VCC or 12V_VCC with a voltage-meter. There may be a problem in headphone connector or headphone detect circuit (when headphone is connected, speakers are automatically muted). Measure voltage at HP_DETECT pin, it should be 3.3v.
  • Page 37 8. No Sound Problem at Headphone Problem: No audio at headphone output. Check HP detect pin, when headphone is. Check 5V_VCC and 3V3_VCC with a voltage- meter. 9. Standby On/Off Problem Problem: Device cannot boot, TV hangs in standby mode. There may be a problem about power supply.
  • Page 38 10. No Signal Problem Problem: No signal in TV mode. Check tuner supply voltage; 3V3_TUN. Check tuner options are correctly set in Service menu. Check AGC voltage at IF_AGC pin of tuner. 10/10...
  • Page 39 TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION 2-9, Suehiro-Cho, Ome-Shi, Tokyo 198-8710, Japan REV. 00 Feb/18/2015...

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