Tnpa5335

[anthonystv]

I just bought this board off ebay the old one blown fets so i put this one in TV runs but picture is negative looking like a voltage on the plasma panal is way off
so i check everything i can VSUS 210 from power board
voltage across C842 148V DC voltage across C813 204V
Evrything looks noraml tv runs no errors so I start looking at SS board 135 v DC Ve I CHANGED the SS board and the power board becuase I had them there is no difference Im hoping I got a bad SC board but Im not sure how to verify that since the voltages I read you are good against VFG the tv is missing a panal sticker to tell me what this panal wants to see to run so I dont know the SS voltage to the screen is 109V against ground Ill atach a few pictures in a few

[anthonystv]

Re: Tnpa5335

voltage on cathode of D421 is like 3 or 4 volts but I dont know if thats an issue

[anthonystv]

Re: Tnpa5335

TCP55GT31 model

[anthonystv]

Re: Tnpa5335

pictures

[tvtimmy]

Re: Tnpa5335

Check These 2 parts.

[anthonystv]

Re: Tnpa5335

Thanks for the reply What 2 parts??

[tvtimmy]

Re: Tnpa5335

Q101 and Q102 on the SS board.

[anthonystv]

Re: Tnpa5335

they seem ok and I replaced the SS board they are not shorted and read like a diode in circuit I see wavforms on the gate and voltage out put seems like something on the SC board but since all voltages seem right .. im not sure where to go ?

[anthonystv]

Re: Tnpa5335

is there a difference in BG and BH versions of these boards ? the original is a plain old tnpa5335 there is no version on the board but the one I got to replace it says BG

[tvtimmy]

Re: Tnpa5335

Yes it matters. Just like people's blood types. You must use the correct one.

[anthonystv]

Re: Tnpa5335

Then this might be the problem the original board has no markings beyond. The tnpa5335

[tvtimmy]

Re: Tnpa5335

No white sticker?