panasonic tx-p42gw30S SN board problem

[dj01fad]

Hello there.
Yesterday I bought this TV for a good price, and the seller told me that it goes into steady green and has no image.
After a first test, I discovered the SN board shorted. so... I removed the power cable from the SN board, and surprise, 7 red blinks after. After the sc20 removal, it had 8 blinks, so I guess that the A board is fine.
My question is... why it goes into steady green with the SN shorted?! Did someone else had this situation? For me it's a strange thing.

[tw2005]

Re: panasonic tx-p42gw30S SN board problem

Hello there.
Yesterday I bought this TV for a good price, and the seller told me that it goes into steady green and has no image.
After a first test, I discovered the SN board shorted. so... I removed the power cable from the SN board, and surprise, 7 red blinks after. After the sc20 removal, it had 8 blinks, so I guess that the A board is fine.
My question is... why it goes into steady green with the SN shorted?! Did someone else had this situation? For me it's a strange thing.

Yes, on a TNPA5351 in a P50U30A. It is mentioned in some of the guides as possible, assume you have 4 shorted 30F131?

[tw2005]

Re: panasonic tx-p42gw30S SN board problem

keeping in mind we have green flashing , solid green startup running , red solid standby.

So sub green solid, no blink for the second note.

Red Solid LED (No Blink): LSI error. This condition is triggered when the power supply SOS-detect-signal is triggered during the startup process.

Shorted Vsus Shorted Vda Shorted P15V, SC(SN , SS most common

[dj01fad]

Re: panasonic tx-p42gw30S SN board problem

hello
yes, 4 shorted, but they are dg301, not 30f131. I am out of stock, but they are on the way to me. I ordered some FGD's, regardinng the 30f131 fake issue.

[tvtimmy]

Re: panasonic tx-p42gw30S SN board problem

Are you going to use the FGD's in place of the dg301's?

[dj01fad]

Re: panasonic tx-p42gw30S SN board problem

yes. is there a reason not to use them?

[tvtimmy]

Re: panasonic tx-p42gw30S SN board problem

I can NOW confirm that a FGD4635 can sub for a DG302. I did one this morning and it's still running after 7 hours. I also used four of them to replace the usual four igbt's.
Hope this helps!!!

[tvtimmy]

Re: panasonic tx-p42gw30S SN board problem

The model number was TC-P42S30.

[dj01fad]

Re: panasonic tx-p42gw30S SN board problem

yesterday I received 6 30f131 from panasonic service, and I've repaired the board. it is working perfect.
I am still waiting for the fgd's...

[tvtimmy]

Re: panasonic tx-p42gw30S SN board problem

Today I got a 43" Samsung plasma for $20. It had the 4 shorted ibgt's on the x main. I used the FGD4536's in place of the RJP30H1DPD. Tv is working 6 hours later.
I love these things!!!!

[tvtimmy]

Re: panasonic tx-p42gw30S SN board problem

The tv is still working as it should. Got to love the FDG's for only 50 cents a piece!

[ReeceyBurger123]

Re: panasonic tx-p42gw30S SN board problem

FDG's are alot more reliable tbh than the 30F etc series from what Ive seen.

[Alastair E]

Re: panasonic tx-p42gw30S SN board problem

I think half the trouble is--there's just SO many Fake 30F devices around!