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Checking c3434 I've got the 'got sound no picture' problem as well. Several sites suggested checking C3434. Where is that bugger located? I've spent a hour searching for it.

Lewis Oct 10, 2007

I've got sound, no picture. Back 1988 I got a degree in electronics. I don't have the schematics for this TV. Elsewhere on this site it was suggested Zenith's from the SY2788DT line had a consistent problem with that capacitor. I can not locate that part on the board.

1 Answer

Anonymous

Expert 556 Answers
Posted on Oct 10, 2007

Anonymous

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From its code no. in ZENITH tv it seems to be located in power supply.(c3434)

please do not touch any thing if you are not a tech person as you might be knowing that tv has very high voltage.

can you explain in details? so we can help you.

good luck.

Anonymous Oct 11, 2007

http://www.eserviceinfo.com/downloadsm/3...

please try it will show you zenith schematic.

it may not be exact but you see power supply 100%

you will get idea.

as you are a electronic graduate so you can solve problem,.

be in touch with me unless it is solved.

your problem in power supply

capacitor is also part of power supply.

good luck.