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Old 09-15-2017, 08:01 PM   #6
mmischni
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Join Date: Sep 2017
City & State: Madison, WI
My Country: USA
Line Voltage: 120V/60Hz
I'm a: Hobbyist Tech
Posts: 13
Default Re: Panasonic Viera TH-42PX75U with 7 Blinks

So how about this? Once I disconnect the SC board, I get 8 blinks. If I use the troubleshooting flowchart for 8 blinks (attached), it leads me to the D board. TV still shuts down with the SS connectors and power connector removed and a jumper on P12. The Vsus voltage exists at pin 1 of P11.

What do the experienced troubleshooters think about the likelihood of a faulty D board being the root cause? It seems that something about this fault may be causing the TV to report a code that doesn't jive with the standard troubleshooting wisdom...
  • I think the power board is OK as power is always where it is indicated that it should be.
  • New/different SS board and new SC board do not fix or change the problem.
  • Disconnecting the SC board (and by extension the buffers?) does not let the TV stay running, so I THINK the buffers may not be the likely cause...

Thanks!

Matt
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File Type: jpg 8Blinks.jpg (212.9 KB, 7 views)
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