Panasonic TX-P42G20B swap in TX-P42S20B main board

[tom66]

I can confirm that mechanically and electrically, minus one HDMI and VGA port, the S20B main board will drive a G20B panel, even though they have different SC and SS boards. The TV works fine now thanks to a board from Alastair.

However, I'm unable to get Freesat or Freeview HD working. (Standard def Freeview is fine.) The S20B didn't ship with Freesat or Freeview HD, but the tuner boards are mostly compatible - I'm hoping that I'll be able hack the option list in the service menu such that I can get these to work.

If anyone has a TX-P42G20B, please could you confirm the option settings. This is accessible by pressing VOL- on the TV and "0" three times on the remote (while holding VOL-). The first page that appears gives the option list - a photo of this from a G20B would be helpful! (To exit, power the TV off then on again.)

[dj01fad]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

hello Tom.

I know someone that has a 42V20B; if this can help, I can try to ask him to send some photos from service mode.
I have a 42GT20E or a V20E it this also can help you.

[ReeceyBurger123]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

I have a G20B but the SC needs to be replaced.

[tom66]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

hello Tom.

I know someone that has a 42V20B; if this can help, I can try to ask him to send some photos from service mode.
I have a 42GT20E or a V20E it this also can help you.

This might be useful if you could get this data, thanks!

[tom66]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

I have a G20B but the SC needs to be replaced.

Swap your G20B main for my S20B main :-P

[Diah]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

Swap your G20B main for my S20B main :-P

hello tom, this is the setting for P42G20E i think are same to B hope it help you can try after you record yours old value as backup.

Option:
Panel-Type : 42FHD
Boot : ROM
STBY-SET : 00
EMERGENCY : ON
Y/C Delay : 0
OPT 1 : 00011100
OPT 2 : 11101111
OPT 3 : 00000001
MIRROR : 00

[Alastair E]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

Be interesting to build up a basic What MB will run in what Panasonic set type thread....

Would love to find summit to run a 37C2B and (if I recall correct) a 42G10B

[Malachi]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

I have the a board from a 55vt30 in a 55gt30 but I'm guessing that's no big deal.

[Diah]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

Be interesting to build up a basic What MB will run in what Panasonic set type thread....

Would love to find summit to run a 37C2B and (if I recall correct) a 42G10B

if Mb work as electrical, then setting would work too in some how depend on ability. its all as HEX dec. so need to read then and convert to what you are wishing if the option was hidden. also at Panasonic there are destination area which limited function from land to land, there are 3 Option Conditional +EU and to France only and to Russia only choice what you want and post ühoto of yours OPT service menu an i will convert then to you.

[ReeceyBurger123]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

Swap your G20B main for my S20B main :-P

Lol knock some £ off the kuro and its yours

[dj01fad]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

This might be useful if you could get this data, thanks!

for the moment he is in holidays, so I'll try to get him enter the service mode when he comes back.
if you want my data I'll get into the service mode tomorrow and let you know.

[tom66]

Re: Panasonic TX-P42G20B swap in TX-P42S20B main board

Update, managed to get Freeview HD working with a retune but still not Freesat. I've decided not to risk messing up the configuration and will just sell the set as it is, with non-working Freesat.

This is probably my last repaired for profit TV I will do. I reckon this is the 100th I have documented on Badcaps out of around 200 or so.

Also bumped VSUS from LOW to HIGH in the service menu due to set having slight cyan maldischarge on white parts of the picture. Rare fault, not seen that outside of a Kuro!

Thanks all