75003639

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• Manufacturer or author: z01132ap
• PDF pages: 10

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© 2007 Toshiba America Consumer Products, LLC. Page 1 of 10 SMART2006003_Version1.2 Service Material and Reference Tips Product: LCD Date: 7/6/2007 Models: 42HL196, 42LX196 and 47LX196 Doc Ref/File: SMART200603_Version1.2.pdf Purpose: The purpose of this document is to give the service provider information regarding the troubleshooting and diagnostics of Toshiba Consumer Products. [The information contained within the document will evolve over time so a version number has been indicated in the document name. The servicer should always use the latest version available.] Table of Contents Page Part I Circuit Descriptions and Diagrams Power Supply Connection Diagram………………. 2 Part II Troubleshooting Flowcharts Part III Service Mode Part IV Parts Listing Feedback: Please provide any comments or suggestions about this document to technical_support@tacp.com. When commenting please provide the document and version number on all correspondence.

© 2007 Toshiba America Consumer Products, LLC. Page 2 of 10 SMART2006003_Version1.2 TOSHIBA 42HL196 42LX196 47LX196 Ver 1.0 POWER UNIT LOW B AV BOARD D-TUNER P802B P807B P807A P811A P811B CN81A CN81 Î 1 (120 vac) 12v or 3.4v 1 ÎÎ 1 (12v on 42")(3.4v on 47") Audio 12v 1 ÎÎ 1 Audio 12v 32v 2 ÎÎ 23 2 v Î 2 (120 vac) 12v 2 ÎÎ 2 12v Audio 12v 2 ÎÎ 2 Audio 12v 5v2 3 ÎÎ 35 v 2 12v 3 ÎÎ 3 12v 32v 5 ÎÎ 53 2 v 5 v 24 ÎÎ 45 v 2 12v 4 ÎÎ 4 12v 12v 6 ÎÎ 6 12v 1.6v 6 ÎÎ 61 . 6 v 32v 7 ÎÎ 7 32v 9v 7 ÎÎ 79 v 5 v 28 ÎÎ 85 v 2 20v 11 ÎÎ 11 20v 5v2 9 ÎÎ 95 v 2 20v 12 ÎÎ 12 20v 5v2 10 ÎÎ 10 5v2 Fuse 20v 13 ÎÎ 13 20v 5v1 13 ÎÎ 13 5v1 LED RMT F820 F870 P809B P809A P812A P812B CN49A CN49B 30v 1 ÎÎ 1 30v 3.3vd2 1 ÎÎ 13 . 3 v d 2 P O W E R _ L E D1 ÎÎ 1L E D 30v 2 ÎÎ 2 30v AC_DETECT (3.4v) 4 ÍÍ 4 AC_DETECT (3.4v) 5v1 4 ÎÎ 45 v 1 24v 6 ÎÎ 6 24v POWER_PROTECT (3.0v) 5 ÎÎ 5 POWER_PROTECT (3.0v) 3.3v 7 ÎÎ 73 . 3 v 5v1 7 ÎÎ 7 5v1 POWER_LCD (3.3v) 7 ÍÍ 7 POWER_LCD (3.3v) IR_OUT 8 ÍÍ 8I R _ O U T (3.4v) 9 ÎÎ 9 (3.4v) AC_DETECT POWER_DB (3.3v) 8 ÍÍ 8 POWER_DB (3.3v) Always ON (3.3v) 11 ÍÍ 11 (3.3v) POWER_SIG POWER_TV (3.3v) 9 ÍÍ 9 POWER_TV (3.3v) Switched ON (3.0v) 12 ÍÍ 12 (3.0v) POWER POWER_SIG (3.3v) 10 ÍÍ 10 POWER_SIG (3.3v) KEYBOARD Power Signal 42HL196 CN42A 42HL196 CN42A Î Input (To CBA) CN43A CN43B Í Output (From CBA) SEINE PWR_KEY 2 ÎÎ 2 PWR_KEY LCD PANEL CN90A CN90 KEY_2 3 ÎÎ 3 KEY_2 P860 Backlight 20vd 1 ÎÎ 1 20vd KEY_1 5 ÎÎ 5 KEY_1 24v 1 ÎÎ 16 v d 3 ÎÎ 36 v d 24v 2 ÎÎ 4 VCC_LCD (12v) 6 ÎÎ 6 VCC_LCD (12v) 24v 3 ÎÎ 33 . 3 v d 1 8 ÎÎ 83 . 3 v d 1 24v 4 ÎÎ 43 . 3 v d 1 9 ÎÎ 93 . 3 v d 1 P 8 1 5 24v 5 ÎÎ 53 . 3 v d 2 1 1 ÎÎ 11 3.3vd2 12v 1 ÎÎ POD FAN P861 Backlight 24v 1 ÎÎ 1 24v 2 ÎÎ 2 24v 3 ÎÎ 3 Backlight CN61 CN72 PN731 24v 4 ÎÎ 4B L O N 1 ÍÍ 1B L O N 2 5 ÍÍ 18 BL ON 24v 5 ÎÎ 5 © 2006 Toshiba America Consumer Products, Inc. All Voltages should be measured within approx 10% of displayed value. POWER_PROTECT

© 2007 Toshiba America Consumer Products, LLC. Page 3 of 10 SMART2006003_Version1.2 TUNER TV 地上DIGITAL- 1 地上- ANALOG- 1 AV MAIN QA01 IC100 TC90411XBG QV01 (A/ V- SW) TB1311FG IC700 I2C TC90111XBG V Y/ C S- SW Y2/ C- IN V YCbCr- IN Y/ Cb/ Cr H/ V- IN Y/ Cb/ Cr R/ G/ B- IN HDMI R/ G/ B/ H/ V REC OUT V HDMI PANEL S LCD V V SW V V CS2 LVDS MONI -O U T HDMI- IN digital TV system LSI V TV MICON OUT- 1 YCbCr LVDS video decoder HDMI receiver CS1 Y/ Cb/ Cr Y/ Cb/ Cr Y/ CE1 Y/ Cb/ Cr PC V VIDEO AMP Video Block Diagram PN741 Pin 12 – Y/V Pin 10 – Cb/C Pin 8 – Cr CN81A Pin 18 - Tuner Video AV Terminal PCB SEINE PCB CN82 Digital MPEG Data PN71A on Model 42HL196

© 2007 Toshiba America Consumer Products, LLC. Page 4 of 10 SMART2006003_Version1.2 P809A P812A CN90A P807A CN61 CN81 P860 Wont Turn ON 3.3v on Pin 7 of CN49A

3.0 V on Pin 5

3.3v on Pin 8,9,11 of CN90A Red LED Flashing Yes Yes Yes 3.3v on Pin 10 of P812A at Power Press No No 0v at Pin 2 of CN43A at Power Press? Replace Power Unit Replace AV/ Terminal PCB Check Keyboard Yes No Yes Replace Seine/ Digital PCB 5v on Pin 4 of CN49ANo No Check Power Unit Replace AV/ Terminal PCB Yes 3.3v on Pin 8 of P812ANo No Replace AV/ Terminal PCB Replace Low B PCB Yes Troubleshooting Flowchart 2006 LCD “TV Does Not Power On” V1.0 CN49A P811A TP12 AV Terminal PCB Seine PCB Power PCB LowB PCB D-Tuner PCB CN43A CN42A on Model 42HL196

© 2007 Toshiba America Consumer Products, LLC. Page 5 of 10 SMART2006003_Version1.2 No Backlight V1.0 Power LED Solid Blue 24v on Pin 1 of P860 5v Pin 1 of CN61 Replace Inverter CBA / LCD Panel Refer to TV Does Not Power ON Chart Replace Main Power PCB Replace AV- Terminal PCB Yes Yes Yes No No No See Page 4 for Connector and Plug Locations

© 2007 Toshiba America Consumer Products, LLC. Page 6 of 10 SMART2006003_Version1.2 Troubleshooting Flowchart 2006 LCD “Loss of Video (Blank Screen) Has OSD” V1.0 Select Ant 1 input without any RF source attached then look at the Monitor Out (Video) with another TV Snow on Monitor Out? Power Supply OK? CN81 Pin 2 (32v) CN81 Pin 3 (5v) CN81 Pin 6 (1.6v) Yes Replace D-Tuner PCB Low B Supply OK P811A Pin 5 (32v) P811A Pin 9 (6v) P812A Pin 1 (3.3v) 30v at P809A Pin 1 Check Fuses and Main Power PCB Replace Low B PCB Replace AV/ Terminal PCBYes Yes No Yes No No Video But Has OSD ~2.7v TP12 D-Tuner PCB No HDMI OK? YesNo Replace AV/ Terminal PCBYes Replace Seine/ Digital PCB No See Page 4 for Connector and Plug Locations

© 2007 Toshiba America Consumer Products, LLC. Page 7 of 10 SMART2006003_Version1.2 SERVICE MODE ENTRY Service Mode Entering to Service Mode Press “MUTE” on the remote. Press “MUTE” again on the remote. Press “MUTE” a third time but hold the mute button down now. Press “MENU” on the TV while still holding the “MUTE” on the remote. Key Function in the Service Mode The following key entry during display of adjustment menu provides special functions. Selection of the adjustment items CH on TV or remote control) Change of the data value Volume +/- (on TV or remote control) Adjustment menu mode ON/OFF MENU button (on remote control) Reset the count of operating protect circuiCALL + CH button on TV ( ) "RCUT" selection 1 button "GCUT" selection 2 button "BCUT" selection 3 button "CNTX" selection 4 button "COLC" selection 5 button "UVTT" selection 6 button Self diagnostic display ON/OFF 9 button

© 2007 Toshiba America Consumer Products, LLC. Page 8 of 10 SMART2006003_Version1.2 SELF DIAGNOSTICS 1) Enter the Factory Service Mode by pressing the following buttons: Press “MUTE” on the remote. Press “MUTE” again on the remote. Press “MUTE” a third time but hold the mute button down now. Press “MENU” on the TV while still holding the “MUTE” on the remote. With the TV in the Service Mode now Press the “9” button on the remote. You should now be in the Production – Self Check Screen. To exit simply press the “POWER” button on the remote or the Television. Item Description 1 Version information of TV -MICRO Display 1 byte data. 2 Version information of TV-MICRO EEPROP Display 1 byte data.

3 Version information of DVD MPU Not used in this Model

4 Version information of DMD Engine OEM Revision Not used in this Model

5 Version information of DMD Engine ASIC Revision Not used in this Model

6 Total brightness hour of TV. Display 4 bytes data. 7 Count the integrating lighting hour of lamp. Not used in this Model 8 Number of times of TV ON/OFF. Not used in this Model 9 Temperature display of thermo-Sensor. (DMD) Not used in this Model 10 Temperature display of thermo-Sensor. (LAMP) Not used in this Model

11 DMD Engine System status Not used in this Model

12 TV-MICRO System status Not used

13 IIC-BUS status Bus line normal is "None" displayed. When it is abnormal, the block name is displayed as follows. "SCL-GND" (Red indication) : SCL-GND short circuit "SDA-GND" (Red indication) : SDA-GND short circuit "SCL-SDA" (Red indication) : SCL-SDA short circuit "NG : MTS" "NG : APRO" "NG : AVSW"

© 2007 Toshiba America Consumer Products, LLC. Page 9 of 10 SMART2006003_Version1.2 LED STATUS INDICATIONS The yellow, blue and red/green LED lights on the TV (at the bottom center of the TV) indicate the TV's status, as described below: Note: If the TV loses A/C power (e.g., a power outage occurs or the power cord is unplugged), when power is restored, the yellow LED will blink while the TV is booting until the remote control is usable. This is normal and is not a sign of malfunction. LED Indication Condition 1 Blue is ON (solid). The TV is operating properly. 2 Red is ON (solid). Recording is in progress. 3 Red blinks three times. The TV is in rebooting. Check the Digital board. 4 Blue blinks slowly. Abnormal operation of BUS line.

• Check the faulty device through the self diagnostics function under SERVICE mode.
• Does BUS line (SCL, SDA) work normally? If the BUS line is under abnormal conditions, replace the faulty device with a new one. 5 Blue blinks quickly. Power Protect Detection. Check the cause that the protecting circuit of the power supply.

© 2007 Toshiba America Consumer Products, LLC. Page 10 of 10 SMART2006003_Version1.2 Common Parts LCD Display AV D-TUNER Vendor # Part Number Vendor # Part Number Vendor # Part Number 26HL66 T260XW02 V5 75002324 PE0036A1 75002310 PE0044B1 75002318 26HLC56 T260XW02 V5 75002324 PE0102D1 75002939 26HLV66 T260XW02 V5 75002324 PE0036B1 75002650 PE0044B1 75002593 32HL66 G5AUO32V5 75001844 PE0036A1 75002310 PE0044B1 75002318 32HLC56 G5AUO32V5 75001844 PE0102C1 75002972 32HLV16 G5AUO32V5 75001844 PE0036B1 75002650 PE0044B1 75002902 32HLV66 G5AUO32V5 75001844 PE0036B1 75002650 PE0044B1 75002593 37HL66 XW01 V2 (B) 75003544 PE0036A1 75002310 PE0044B1 75002902 37HL86 G6AUO37 V2 75001858 PE0102A1 75002543 37HLC56 G6AUO37 V2 75001858 PE0102C1 75002972 37HLV66 G6AUO37 V2 75001858 PE0036B1 75002650 PE0044B1 75002593 37LX96 XW01 V2 (B) 75003544 PE0141A1 75003633 PE0044B1 75002902 42HL196 V420H1-L05 75002247 PE0135A1 75002915 PE0044A1 75002876 42LX196 V420H1-L05 75002247 PE0141B1 75003373 PE0044A1 75002876 42LZ196 V420H1-L05 75002247 PE0205A1 75004042 PE0044A1 75002876 47LX196 V470H1-L02 75002391 PE0141B1 75003373 PE0044A1 75002876 47LZ196 V470H1-L02 75002391 PE0205A1 75004042 PE0044A1 75002876 LOWB POWER SEINE/SIGNAL Vendor # Part Number Vendor # Part Number Vendor # Part Number 26HL66 PE0040J2 75002316 PE0040J1 75002315 PE0079F1 75004709 26HLC56 PE0103F2 75002945 PE0103F1 75002944 PE0081E1 75004723 26HLV66 PE0040L2 75002656 PE0040L1 75002655 PE0079G1 75004718 32HL66 PE0040G2 75002338 PE0040G1 75002337 PE0079F1 75004710 32HLC56 PE0103D2 75002978 PE0103D1 75002977 PE0081E1 75004724 32HLV16 PE0040L2 75002656 PE0040L1 75002655 PE0079G1 75004720 32HLV66 PE0040L2 75002656 PE0040L1 75002655 PE0079G1 75004719 37HL66 PE0040K2 75003543 PE0040K1 75003542 PE0079F1 75004711 37HL86 PE0103C2 75002568 PE0103C1 75002567 PE0081E1 75004717 37HLC56 PE0103E2 75002986 PE0103E1 75002985 PE0081E1 75004725 37HLV66 PE0040H2 75002677 PE0040H1 75002676 PE0079G1 75004721 37LX96 PE0143A1 75003639 PE0071G1 75003371 PE0079J1 75004722 42HL196 PE0070B1 75002920 PE0071E1 75002913 PE0140H1 75004712 42LX196 PE0143B1 75003379 PE0071G1 75003371 PE0140K1 75004713 42LZ196 PE0207A1 75004243 PE0206A1 75004242 PE0208L 75004110 47LX196 PE0070C1 75003414 MPF4305 23122508 PE0140K1 75004714 47LZ196 PE0207B1 75004239 MPF4307 75004095 PE0208L 75004111