Samsung LN46A530P takes multiple trys to come on

[snake91876]

The tv takes four to five trys to turn on . I push the power and black screen and menu come on perfect awaiting signal but as soon as signal is sent a high pitched squeal happens with a scrambled type picture , see below photo. I have tried hdmi 1, hdmi2 they both do the same thing, and hdmi 3 never even trys to get a signal just Samsung menu present. Is this a main board issue or could it be a capacitor issue on PS. The tv originally would now turn on it would just click, so I replaced two or three bulged capacitors on PS with some slightly higher in value. Tv then comes on but with this issue. Once tv trys to start with the scrambled sceen it shuts down automatically and trys to start again. It will start normal and play all night after four to five trys.

[snake91876]

Re: Samsung LN46A530P takes multiple trys to come on

Pics

[budm]

Re: Samsung LN46A530P takes multiple trys to come on

I would have recap the power supply board, not just the one that have bulged tops since bad cap can look normal but can have high ESR.
Did you also use low ESR caps or general purpose caps?

[Glitcher]

Re: Samsung LN46A530P takes multiple trys to come on

Common problem with this model and main board. Replace C102 or C101 on the back of the main board (can't remember which) and it should fix the problem.

[budm]

Re: Samsung LN46A530P takes multiple trys to come on

If it has squealing sound and power cycle, then it will be C102.

[snake91876]

Re: Samsung LN46A530P takes multiple trys to come on

it squeals and trys to come on , then it shuts down, restarts by itself trys to come on scrambled image and squeal. Then it shuts down by itself and restarts , while the image is scrambled and squealing i cannot turn it off with power button.