Re: PANASONIC Plasma TH-37PX80BA 7 blinks of death

Hi
Finally a screen clear of black lines
I think, in the end it came down to insertion technique, although I found some spray and cleaned the contacts.

So thanks guys.

Re: PANASONIC Plasma TH-37PX80BA 7 blinks of death

Worse than it was now, tried about 5 times, thinking some electrical cleaner might be a good idea.

Re: PANASONIC Plasma TH-37PX80BA 7 blinks of death

Hi

Thanks for coming back on that, I was thinking that was probably the cause, this time i will double check before putting the 37 screws back. Will let you know how I got on. Funny how the picture is good.

Re: PANASONIC Plasma TH-37PX80BA 7 blinks of death

Yes checked already checked sc2 and measured VSUS, but found some info (about a different model) that said if the su sd boards are disconnected then the TV shuts down. based on this I fitted the spare SM from ebay, and the TV works except NOW I have a few groups of black horizontal lines superimposed on a good picture.

Any ideas, suspect could be the spare or the connections, would like to be armed with a cause before stripping it down tomorrow.

My Panasonic Plasma has the Power Red LED code of 7 flashes.
The manual states it will be the SC (YSUS) (TXNSC1BSUB TNPA4644) Floating Voltage area, and/or SM (SU & SD [buffers on one board]) boards.

I have: disconnected the SM BOARD and powered up - no change,
then disconnected the SC board, both the SC2 (VSUS) & SC20 (Ribbon)- no flashing LED
I have re-connected SC board's SC20 and flashing LED is back
Not certain if this procedure is correct - some info on this site for a different model requires a SC50 jumper shorted after the buffers...

Re: New Members - please post your introductions here

Hi
I have worked in the electrical electronic sector for a while, recently working as a physics tech in a high school, (now retired), previously worked with disabled adults managing their IT and technical needs, AAC support, switch access for computers, etc. Service engineer for a manufacturer of scientific instruments and other stuff


What prompted me to this site? Well My Panasonic TH-37PX80BA Plasma TV has the 7 blinks of death.........I have disconnected the SM board, and still have 7 blinks,...