Continuously turns itself on to the Sceptre logo...

posted by Gary32 on Apr 24, 2008

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Problem started after turning the set off at the power switch instead of the remote. There was a static discharge as I hit the switch. I found that I can interrupt the power cycling by pushing the info button and holding it. I then get a picture, sound and flashing channel information for as long as I hold the button. When I release it, the power cycling begins again and does not stop until unplugged. I've tried plugging and unplugging the set to no avail. The TV is 2 1/2 weeks outside it's 1 year warranty, although I've heard service through Sceptre is spotty. Since the TV works (while pressing the info button) I'm guessing I fried a control board but I'm not sure about finding the right part or repairing it myself. I have basic electronic skills. Any help would be appreciated.

I have the same problem.

Best Solution

posted on Apr 24, 2008

jerryg50

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Wiz
Rating: 84%, 581 votes

I can only give you a generic idea for this set.

There is a good chance that the controler IC that the switch is connected to is damaged. This controler may be in part of the main uPC IC.

On the circuit board with the switch, there may also be a buffer amplifier or matrix IC.

It is also possible that by coincidence that there is a fault in the power supply itself, or on another board that is commanding the uPC to be triggering the power supply to be shut down.

As for having parts for this set, I would have no idea of any distributor. Many of the IC's and most of the mechanical parts are all proprietary to the manufacture.

When these types of sets are under warranty, the customer usually receives a new TV set. There is no direct support for these. There are some importers where are doing some board swaping with these. As long as the repair was simple, then the set would be shipped to the next customer for an exchange or end up being sold in the flea markets as refurbished.

When you decide to buy a new HDTV, I think you would be farther ahead to decide on a major name brand that has service support.

Jerry G.

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