Service Manual Transistor Technical Articles CD Download Register Member Login Exit Sign
Home A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
. TV  .  Camera  .  Video camera  .  Notebook  .  Audio  .  Monitor  .  Projector  .  Air conditioning  .  Refrigerator  .  Printer  .  Duplicator  .  Fax machine  .  Mobile  .  Telephone  .  Washing machine  .  Cooker  .  Microwave  .  Other  .  
Your current location£ºHome > Technical Articles > TV

Panasonic TC-29P860D TV does not boot, the lights flash, no fault repair method for remote controller
Time£º2014-06-22 08:13:34  Source£ºNetwork  Author£ºUnknown  Clicks£º1136
  

Don't boot, lights flashing, the remote control doesn't work. TWcservice manual download site
Due to the failure in general is a protection circuit action. TWcservice manual download site
DG plate of the power supply voltage found 19 feet DG4 voltage of 0 V, measuring 3.3 V to ground short circuit resistance. One by one off 3.3 V related circuit measurement of resistance, found broken BGA (IC4401) peripheral L4422, ground resistance returned to normal. After replacing IC4401, troubleshooting. But after switch on for a while, fault, BGA damage again, after inspection found that the 3.3 V voltage regulator circuit resistance R1442 resistance of smaller, 3.3 V high burning BGA (IC4401). Replace IC4401 and R1442 resistance and troubleshooting.TWcservice manual download site
Home | About Us | Terms of Service | Advertising service | Contact us | Site Map | Disclaimer
Powered by electronic-circuitry.com   © 2012-2022 EmpireSoft Inc.