Re: Panasonic TX-P42GT20B - Stuck Stby
spot on, thank you all for your help...
benjamin.d.bird
Member
Last Activity: 12-23-2020, 05:29 AM
Joined: 06-09-2016
Location: Burnley
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Replacement SC board did the trick, now i have 3 horzontal lines on screen tried mirror in service mode but as they are in centre of screen they stay the sameLeave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
i hooked it up (SC50 Bypass) no error flash, solid green light on tv.
led bright on SC and SS.
performed short test on sm board ribbon connectors - no short.
so if i now install the AW fully it'll fire up as it should do with AH installed?
i have got a copy of both of the manuals.Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
any ideas on how many/which ones would need swapping out?
and if its just coils and caps which i am capable of but anything involving micro surgery then i'd be at a loss!...Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
ok passed bypass test, how do i make sure sm didnt blow sc board to start with?Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Well my replacement SC board arrived this morning..............
.......However, the board that i received is a "fully tested" TNPA5081 AW.
I assume that as one is for the 50" and the other for the 42" board needs returning?
good news is that Q661 is ok (wry smile)Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
ok i have one on order "should" be here tomorrow.
First of all am i ok just to put it in, connect it up and hope for he best or did i read some where in your long thread about the buffer board making it go popo again or am i just getting my wires crossed (for want of a better phrase).
Second if all is well do you or Tom want the original board?Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
[B][U]SC Disconnected[/U][/B]
[I]P11[/I] pin 4 = 15.58v
pin 1 = 201v
[I]P2[/I] pin 1 = 207v
[B][U]SC Connected -[/U][/B]
[I]P11[/I] pin 4 = 15.58v
pin 1 = 0v
[I]P2[/I] pin 1 = 0vRe: Panasonic TX-P42GT20B - Stuck Stby
[B][U]SC Disconnected[/U][/B]
[I]P11[/I] pin 4 = 15.58v
pin 1 = 201v
[I]P2[/I] pin 1 = 207v
[B][U]SC Connected -[/U][/B]
[I]P11[/I] pin 4 = 15.58v
pin 1 = 0v...Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
i dont seem to be getting any V at P2 with sc disconnected,Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
So if I buy a working SC board then all will be working?Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
on q661 it beeps on all 3 legs
on sc nothingLeave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
i have looked over the schematics but cant fathom where or on which pins/connectors i should be checking for the voltages.
also got hold of different DMM hopefully this one will be capable lolLeave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
still giving me 10Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
is that with just D5/A31 disconnected?Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Same can't seem to get off 10 blinksLeave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Have not seen led on SC light up at all.Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Tried above steps, no led on SC or SS, with p6 and p7 disconnected, no white screen with p6 p7 and d5 disconnected.
The only way I can get led on SS to stay lit is to disconnect sc2.
Does this suggest power board...Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Yes it has a D Board - TNPA5299...Leave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Still gives 10 blinks with SC removedLeave a comment:
-
Re: Panasonic TX-P42GT20B - Stuck Stby
Touching the probes together reads 001
Probes on middle and lower leg reads 014
Probes on middle and upper leg reads 001
Probes on upper and lower legs reads 014Leave a comment:
No activity results to display
Leave a comment: