Panasonic TC-P54G25 Repair Guidance.

[Rocket21]

Ok before sending in SC board for repair I was hoping for some help/confirmation I am on the right track.(likely send to Ptsparts, any other recommendations?)
TV "popped" and then didn't turn on; 10 blink code, but actually 4 after replugging in and then 10 after power hit (tv clicks on at plugin then again a second or two later )
Saw service manual & not sure I did this right but tested for resistance: p11 seems fine p35 didn't know how to test this; Unplugged SC board from power supply (sc2/p2) plugged TV in got a 7 blink code
**Note manual says unplug sc20 (ribbon) to test though, is that a typo perhaps? I did try this and got same 4 blinks on plugin 10 after power button

Thoughts/ideas? Thanks all!

AJ

[tw2005]

Re: Panasonic TC-P54G25 Repair Guidance.

Ok before sending in SC board for repair I was hoping for some help/confirmation I am on the right track.(likely send to Ptsparts, any other recommendations?)
TV "popped" and then didn't turn on; 10 blink code, but actually 4 after replugging in and then 10 after power hit (tv clicks on at plugin then again a second or two later )
Saw service manual & not sure I did this right but tested for resistance: p11 seems fine p35 didn't know how to test this; Unplugged SC board from power supply (sc2/p2) plugged TV in got a 7 blink code
**Note manual says unplug sc20 (ribbon) to test though, is that a typo perhaps? I did try this and got same 4 blinks on plugin 10 after power button

Thoughts/ideas? Thanks all!

AJ

Mate, since you are testing resistance simply try this.

1. on the SC board, at conncetor SC2, two terminals what's the resistance?
2. On the Sc board locate Q661 near the sc50 connector and on a heatsink of two transistors. Now check across any two of those legs of Q661 (RJP63F3A) are they shorted?

10 blink to 4 blink, sounds like typical SC fail, shorted SC2 scenario

[Rocket21]

Re: Panasonic TC-P54G25 Repair Guidance.

Thanks for the help! Well I’m playing with the multimeter anyway, yet not too confident in my testing skills nor the harbor freight cheapo. 1)With dial set to “2000” (see Pic) pin near sc2 lettering 1384. Other pin 001
2. Q661 both 1376

[tw2005]

Re: Panasonic TC-P54G25 Repair Guidance.

Unfortunately I don't have much confidence in what you're reporting. Symptoms suggest SC, I don't know how to guide you further

[Rocket21]

Re: Panasonic TC-P54G25 Repair Guidance.

Ok thanks for the help, much appreciated. I thought the resistance info might just need to be adjusted different scale. i think I'll go ahead and order a repair, if any recommendations on where please lmk.

[tw2005]

Re: Panasonic TC-P54G25 Repair Guidance.

http://www.ptselectronicsinc.com/

[vinceroger69]

Re: Panasonic TC-P54G25 Repair Guidance.

in post 3 it looks like your using the metal tv chassis as a ground what reading do you get if you test just across the two connector terminals

[Rocket21]

Re: Panasonic TC-P54G25 Repair Guidance.

Thanks for the guidance. Same setting on meter yields same value for sc2
Of 1384 ohms
With q661. See Pic

A-b= 002 ohms guessing that's showing the issue?
A-c 1709
A-d 1360
B-c 1705
B-d 1360
C-d 317