Seiki SC392TS Won't turn on.

[Shane711]

My Seiki SC392TS won't turn on. I already replaced the EEPROM IC but that did not make a difference. I am not getting any light on the front and I guess if I was the EEPROM would have fixed it. So when I press the power button there is no response at the wire connector, no power change. When I manually turn the PS on it does turn on and my voltages are good. So I know the problem is in the main board. The voltage regulators seem to be good but some of them are not being powered. I have to figure out how to test them when they are off.

My next step is to start checking capacitors on the main board and replace them. Not sure what else could be wrong at this time.

I also can not find a service manual for this TV.

If anyone has some input I will appreciate it. Lets see if changing the caps fixes it.

[ReeceyBurger123]

Re: Seiki SC392TS Won't turn on.

Can you take a pictures of the psu and rest of the tv I repaired one of the same model there was a partially shorted diode on the psu that was dragging the whole tv down.

[Shane711]

Re: Seiki SC392TS Won't turn on.

Here are some pictures. The power supply seems to be working perfect. All the voltages are there when I manually turn it on. The Main board is not sending the signal to the PS for it to turn on. I have checked all the caps on the main board, found 1 that was weak so I replaced it but it did not make a difference.

[ReeceyBurger123]

Re: Seiki SC392TS Won't turn on.

Ahh right ok well when you replaced the epprom you did get one with the software flashed on to it ?

[Shane711]

Re: Seiki SC392TS Won't turn on.

Oh yea, Got it from Shop Jimmy. (( http://www.ebay.com/itm/360954544640 )) But what I read online is the power indicator LED on the front of the TV is always lit. Mine does not light at all. $50.00 for a used main board but I will try to fix this one first. I will have to follow the power to see where it stops I guess unless someone has a good way of testing the main board.

[johniwad]

Re: Seiki SC392TS Won't turn on.

I'm trying to fix this TV for someone. They'd like to get it fix as cheap as possible. I have the same issue. I have troubleshoot it down to the main board. Did you ever figured out the issue with this board? I've found a very similar board used in an Element ELDFW464. It also has the same 27H1365A number as well. Could I possibly use the element board and swap out just the eeprom from the Seiki?