Panasonic TX-P50G10 Mainboard in TX-P42G10..

[Alastair E]

I had need to fit a mainboard from a 50" FHD Panasonic to a 42" set.

I had thought I would need to change EEPROMS over, but just tried the board as is with no alterations.

It worked--but had Mal-Discharge, not terrible, only on bright scenes it was purpling up and noisy.

Tried Increasing the VSUS from 209 to 215V this only made it Worse, all other voltages seemed normal.

I reduced VSUS to 200, and this resulted in a perfect picture, even the test-images in test-mode were fine. Another tiny victory!.....

[ReeceyBurger123]

Re: Panasonic TX-P50G10 Mainboard in TX-P42G10..

Awesomeness

[Moreno83]

Re: Panasonic TX-P50G10 Mainboard in TX-P42G10..

The Vsus voltage on a 42inch G10 is 199v! Good job!

[Alastair E]

Re: Panasonic TX-P50G10 Mainboard in TX-P42G10..

Strange thing is, this 42" G10B set's panel was marked, 209V, it had its original PSU, SUS boards everything except the main was original.

--I'm guessing some parameter of the sustain-waveform is just slightly different between 42 and 50" versions on this Panasonic FHD, and lowering the VSUS by 9V is compensating...

For longevity--I added a couple of heatsinks to the two large chips on the replacement mainboard, the Analog-Devices chip gets hot enough to burn your finger--That cant be healthy for it!

[Moreno83]

Re: Panasonic TX-P50G10 Mainboard in TX-P42G10..

Hmm thats strange indeed. My 42inch V10 and G10 both have 199V marked on the sticker.

Those mainboards get really hot. Great tv's though!