Pioneer Elite PRO-506PU 3 red blinks

[Glitcher]

I just got a 50" pioneer pro-506pu, once turned on, the led will turn blue for a couple of seconds and then turn red and give 3 blinks. I haven't found much information on Pioneer models before. I read on "justanswers" that this 3 blinks is a common problem with the Y-sustain? Stated a common problem, yet there is no information anywhere..

Anyone dealt or know anything about these panels?

[Glitcher]

Re: Pioneer Elite PRO-506PU 3 red blinks

So I opened up this thing and decided to check the output voltages on the PSU. Sure enough all the voltages are present for the first few seconds the standby light turns blue, EXCEPT for the Vsus. I unplugged the Y-sus board, and sure enough the Ysus is back at 208v until it shuts off and gives the error.

Did the same with the Xsus with the Ysus plugged in to confirm and the Vsus goes missing again, so the problem is definitely with this Y-sustain board.

Looks like it has these old hybrid modules? and it seems that they've gone bad as the pins Vsus, SusGnd, and SusOut are dead shorted.

I'll probably check the buffers out next to make sure they're okay.
Does anyone know the labels for these IPMs on the Ysus?

[Glitcher]

Re: Pioneer Elite PRO-506PU 3 red blinks

Found the Part number for the IPM, STK795-524. It was surprisingly easy to desolder. One of them had obvious dead shorts on it but the other seemed okay. I replaced both of them since they were relatively cheap. Put everything back in the panel and its back up and working!