Coppell TV Repair offers you a repair kit for a common problem experienced by Panasonic power supply board TNPA4221 and its various versions.
The board is used in Panasonic TH-42PX75U, Panasonic TH-42PX77U, Panasonic TH-42PC77U and possibly other models.
CTVR nomenclature
CTVRL-NO-PB-001803
Failure symptoms
Dead tv, no front LED, no blinking lights. Q406 on power supply board is usually shorted, F401 and/or F402 blown open.
Difficulty level
Basic to intermediate soldering skills level and consumer electronics grade soldering iron required to perform the repairs.
Kit tested by Coppell TV Repair
Yes.
Repair service offerred
Local customers are welcome to have the components in the kit replaced for a minimal charge of $10.
Remote full-blown repair service of the power supply board is not offerred at time of publishing this listingt, but the situation can change at any tome.
Notes
1) As with all power supply boards please exercise caution and allow the board 5-10 minutes after disconnecting from power before starting to work on it!
2) When using a substitute for Q406 it will come with scratched identification on the corpus; we do that to prevent competitors (often without repair experience whatsoever) to copy what we come up with after investing time and money in actual repairs.
3) As with all repairs please note that we can never guarantee that this kit is all that is needed to fix the TV. It is offerred based on experience and technical information available to Coppell TV Repair at the time of the listing. For details please see the warranty conditions section below.
