sharp lc-c5255u only blink codes no picture

[tom66]

Re: sharp lc-c5255u only blink codes no picture

Probably been damaged somehow, but there's another fault as it's giving a 5 and 2 blink code. As it lights up, PSU and inverter and probably OK, and the main and T-con are suspect.

[Cogtx]

Re: sharp lc-c5255u only blink codes no picture

Try this to see if you can force on the power supply, unplug it from the wall outlet then

Hold [CH_DOWN] and [VOL_UP] on TV, plug in the AC power cord while holding both buttons in.

Above was taken from "just answer"

Try at your own risk though as you will be forcing the psu to switch on.

Just did as you suggested...screen lighted up with vertical color bars, white circles at bottom of screen and appeared to have cracks on top and side of screen. At least we know now the LCD is cracked...does that mean the components are probably OK but screen is damaged?

[gilly1984]

Re: sharp lc-c5255u only blink codes no picture

Try this to see if you can force on the power supply, unplug it from the wall outlet then

Hold [CH_DOWN] and [VOL_UP] on TV, plug in the AC power cord while holding both buttons in.

Above was taken from "just answer"

Try at your own risk though as you will be forcing the psu to switch on.

[Cogtx]

Re: sharp lc-c5255u only blink codes no picture

Does it click when its plugged in or when you plug it in then press the power button?

You get no clicking when the main board is disconnected because there is no power on signal coming from it.

I get a click in the power supply when it is plugged in, then after 5-6 seconds a louder click at power supply and the blink codes start flashing..

[gilly1984]

Re: sharp lc-c5255u only blink codes no picture

Does it click when its plugged in or when you plug it in then press the power button?

You get no clicking when the main board is disconnected because there is no power on signal coming from it.

[Cogtx]

New here and first time to post. My son picked up a sharp lc-c5255u from a neighbor. Neighbor reported the screen stopped working. We decided to make it a project to getting it working again and learn something about electronics along the way. When plugged in, there is one click and after approx 15 seconds another click resulting in the power light blinking 2 times and OPC light blinking 5 times and repeats the sequence. No light or image on the screen. I read on a post in this forum about the blink code similar to these and online suggesting power supply issue. I was able to replace power supply with another new one but got same results. We looked over the caps which all seemed in good shape. I disconnected the connections from the power supply to each component one at a time hoping to isolate the bad component. Only when the main board is disconnected from power supply, there is no clicking or blink code or light on the screen. Would that mean the main board in bad? Can anyone tell me about this part of the main board? Looks like fuses to me. Are they suppose to have metal on them like car fuses, etc.? Thanks for any help you can provide.