Hello, got the four red lights, so turned off at the mains. turned back on and all was well. watched a dvd, but the picture was bad. that was yesterday. today, no picture at all, no red lights, but sound is ok. have tried a different av cable in a different port on the tv, still get sound but no picture.

Start by testing the PSON voltage and see if its what it should be, if its ok then replace the power board if its not ok then you have a bad main board, I don't think the timing board is your issue so that board can be eliminated.

ok on pioneer most of the time it is because of bad connections all over the main power supply board solder these and see what happens like i said most of the times it starts with bad connections.

What brand and model # is the tv? This is very important as far as researching your problem. You probably aren't the first or the only person with this problem. There are typically four to 5 boards including an x main, a y main, power board and others. Sometimes easy stuff like capacitors or fet's go bad and you can fix it yourself pending your soldering abilities. Sometimes whole processors go bad or entire boards and these need to be replaced. Sometimes people want to fix sometimes they want brand new

Hello,
the error light sequence that you are seeing is indicating a "backlight error". Most likely you have a bad inverter board -the board that powers up the back-lights behind the display panel. They might be available via ebay if you are a DIYer, or you need to call for sony service.
Good Luck!
Rich Lilja

Hello,

The reason you DVD player wont show turn on a green or red light is simply because there is no power supply entering the player.

This could be as a result of the player being exposed to a very high current and has burnt a capacitor on the power panel.

The best thing is for you to get the appropriate screwdriver,

1. open the cover of the phone,
2. get a meter reader and test all the component of the board,
3. you will discover a part that is burnt,
4. you will see a power pack that is connected to the main board by a cable or more,
5. disconnect the cables,
   
6. replace the power pack,
7. couple it back
8. try to turn it on.

Take care

Try D103, usualy goes S/C!

Likely one of two things bad here. -- a bad color wheel in the light engine is not allowing the lamp to fire, or bad capacitors on the power supply is preventing the start up process from being completed. I have seen both, but more power supply issues. The PS is up front, behind the DM module and formatter module in the "box".

Techs HATE these sets!! The main reason is that ALL of the "stuff" is inside a bunch of "boxes" that shield things, but at the SAME time--they make repair a "#itch and ALSO overheat EVERYTHING!! Hopefully--you can find one willing to take a look at your set, if not under a service plan.

You have a bad power supply (AC adapter). Watch closely at the red light while turning tv on to see if red light momentarily flashes green, then back to red.

I think you have problems with the digital main PWB.

If the power PWB failed, turn off and change the pilot ligth to red.

intermittent problems can usuall be liked to bad solder connections. And sony typically has some that will develop after a few years in the power supply. so check for bad sodler connections throught the main board & give a close look to the power supply & check you work after to make sure you have no shorted pins. good luck.