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Toshiba 46SL500U Technical Training Manual
Toshiba 46SL500U Technical Training Manual

Toshiba 46SL500U Technical Training Manual

Sl500u chassis family lcd510 series 4
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TOSHIBA
2010 Toshiba LCD
Technical Training
SL500U Chassis Family
LCD510 SERIES 4
INTERACTIVE
TROUBLESHOOTING
40SL500U, 46SL500U, 55SL500U
FORWARD
© 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.

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Summary of Contents for Toshiba 46SL500U

  • Page 1 TOSHIBA 2010 Toshiba LCD Technical Training SL500U Chassis Family LCD510 SERIES 4 INTERACTIVE TROUBLESHOOTING 40SL500U, 46SL500U, 55SL500U FORWARD © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 2 SERIES 4 – INTERACTIVE TROUBLESHOOTING INTERACTIVE LEARNING PREVIEW 24.00 DEAD SET NO VIDEO BACKLIGHT NO AUDIO INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 3 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Is 5 volts present at pin 12 of CN90 when AC is applied? 05.00 CN90 PIN 1 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 4 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Suspect a problem in the Power Supply For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 5 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Does 3.4 volts appear at pin 11 of CN90 when the power button is pushed? 03.40 CN90 PIN 1 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 6 NO SOUND – NO PICTURE – NO POWER LED Does 12 volts appear at pins 1, 2, 3, & 4 of CN90 when the power button is pushed? 12.00 CN90 PIN 1 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 7 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Suspect a problem in the Power Supply For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 8 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Does a Blink Code appear when the unit is turned on? INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 9 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Suspect a Problem with the Main Board. INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 10 NO SOUND – NO PICTURE – NO POWER LED Use the Blink Code Chart to Help Diagnose the Problem. REPLACE MAIN BOARD POWER SUPPLY PANEL In-Warranty Panel replacement requires pre- authorization INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 11 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Does 3.4 volts appear at Pin 9 of CN90 when the Power Button is pushed? 03.40 CN90 PIN 1 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 12 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Suspect a Problem with the Main Board. INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 13 SERIES 4 – DEAD SET ( NO SOUND – NO PICTURE – NO POWER LED Suspect a problem in the Power Supply. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 14 SERIES 4 - NO OR DISTORTED VIDEO Does the back light function normally when the unit is turned on? “Normally” means in a reasonable time frame and evenly lit. INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 15 SERIES 4 - NO OR DISTORTED VIDEO Is the screen discolored or does it have streaks and dark areas as shown in the example below? INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 16 LCD Panel. T-Con In-Warranty Panel THE T-CON IS replacement requires pre- POSSIBLE, BUT authorization UNLIKELY. SUSPECT THE LCD PANEL. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 17 SERIES 4 - NO OR DISTORTED VIDEO When the Input button is pressed on the Receiver or the Remote, is the On Screen Display Clear and Normal? INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 18 SERIES 4 - NO OR DISTORTED VIDEO Suspect a Problem with the Main Board. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 19 SERIES 4 - NO OR DISTORTED VIDEO Are the voltages normal at pins 1, 2, 3, & 4 of CN90 (12v)? 12.00 PIN 1 CN90 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 20 T-Con or LCD Panel. If it is not present, replace the Main PCB. In-Warranty Panel replacement requires pre- authorization .015 .017 For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 21 SERIES 4 - NO OR DISTORTED VIDEO Suspect a problem in the Power Supply. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 22 SERIES 4 – BACKLIGHT PROBLEMS Is 3.3vDC present at pin 21 of CN90- after turn-on? 03.30 PIN 1 CN90 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 23 SERIES 4 – BACKLIGHT PROBLEMS Is 3.3vDC present at pin 21 of CN90- after turn-on? 03.30 PIN 1 CN90 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 24 SERIES 4 – BACKLIGHT PROBLEMS Replace the Main Board For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 25 SERIES 4 – BACKLIGHT PROBLEMS Is 24vDC present at pin 16 (white wire) on P860 when the unit is turned on? 24.00 PIN 16 P860 For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 26 Normally, this board is part of the display. That being the case, order the LCD Panel. In-Warranty Panel replacement requires pre- authorization For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 27 Remove AC, unplug LVDS Cables and CN101. Does the 24 volts return when AC is reapplied and the unit is turned on? DOES 24V RETURN? UNPLUG REMOVE FROM OUTLET INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 28 Normally, this board is part of the display. That being the case, order the LCD Panel. In-Warranty Panel replacement requires pre- authorization For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 29 SERIES 4 – BACKLIGHT PROBLEMS Suspect a problem in the Power Supply. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 30 Using the Remote or the Manual keyboard, access the Menu and Input functions to make sure the speakers are on and the input selection is a known good source. Did this restore audio? INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 31 SERIES 4 – AUDIO PROBLEMS Problem Solved INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 32 SERIES 4 – AUDIO PROBLEMS Is 24vDC present at pins 17 & 18 of CN90 after turn-on? 24.00 PIN 1 CN90 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 33 SERIES 4 – AUDIO PROBLEMS Replace the Main Board. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 34 SERIES 4 – AUDIO PROBLEMS Suspect a problem in the Power Supply. For parts information contact the Toshiba National Parts Center 1-800-345-9785 INFO FORWARD BACK HOME © 2010 TOSHIBA AMERICA CONSUMER PRODUCTS, L.L.C.
  • Page 35 TOSHIBA This concludes your interactive course of study on: LCD510 xxSL500U Series 4 Interactive Troubleshooting HOME...

This manual is also suitable for:

40sl500u55sl500u