Pioneer lx6090 2 x flashing red light at start up

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Awesome work also Tom knows how to do that You will need an RS232 cable and the remote

[hitechtherealone]

Re: Pioneer lx6090 2 x flashing red light at start up

Another nice read with a positive conclusion. Cheers for that info Tom bout outside pins of the fets talked about as low to s/c due to the design of the circuit. One to remember.

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Meh........

[Arnie65]

Hello,

Sorry for reviving a very old thread, but I happen to have the same issue.

I have a Pioneer PDP LX5090H with low hours that has been in storage for a number of years.

Today, I powered it up and all appeared fine... for about 20 mins, anyway, after which the screen when blank. I now have the repeating 2 red flash codes when trying to cycle the power, with the screen apparently dead.

I removed the back cover panel and checked the Y-SUS and X-SUS drive boards (following advice in this thread). The first thing I noticed is that all of the large, 280uF caps have a slightly domed top and when checking the transistors on the aluminium heatsinks, there are 6 dead (shorted) on the Y board and 4 similarly dead on the X board.

I guess I have to replace the boards now, but my questions for which I'd be most grateful for some pointers are:

1.) is it likely that the caps went bad whist the TV was in storage for 4 years and have consequently caused the transistors (IGBTs) to fail from over-voltage spikes ?
2.) or is it likely that there is some fault in the main PSU that has precipitated to the X and Y boards, damaging the caps and transistors ?

It seems to be cheaper to replace the complete boards with used good ones rather than replace the 10 transistors (and maybe other components). However, how can I know if the PSU is the faulty culprit, in which case it could happen again?

Many thanks for any input.