Philips 50PFP5332D/37 Plasma no picture VS/VA shutdown

[Sevenqi]

GOt this TV, model Philips 50PFP5332D/37, powered on screen flashing less than a second then black. The front led green constantly. Can turn off when press the power button.
Took out the cover, found many bad caps on power supply board and one on the x-main. Replace all those bad caps but no change.
Measure the voltage, the VS and VA present at right voltage at the moment when power on, but dropped to zero after a second, the other voltages are all good and constant. The logic board led flasing slow as normal.
What I tried : Unplug the y-main and/or x-main, same problem.
At this point not sure if power board or other boards issue. The power board part number is PS-507-PHN, panel is Samsung S50hw-YD07.
The big cap on the top right looks ugly but is a working cap from other tv board, sure it's good.
So the problem is why / what cause the vs/va dropped ?

[Unspun01]

Re: Philips 50PFP5332D/37 Plasma no picture VS/VA shutdown

How many blinks do you count on the small "daughterboard" located on the power supply board? When an issue is detected, the power supply will shut down and an error code will blink, then pause, then blink again... count the number of repetitive blinks between the longer pause and then compare to the table printed on the main power supply circuit board... For example, 2 blinks indicates a problem with voltage Vs - either too low, or too high...

[Sevenqi]

Re: Philips 50PFP5332D/37 Plasma no picture VS/VA shutdown

Unspun01: Thanks for your reply and suggestion.
I already found the problem, it was the y-sustain board, I replaced it and problem resolved.

[6String]

Re: Philips 50PFP5332D/37 Plasma no picture VS/VA shutdown

I have a similar problem. The daughter bd on the PS blinks 8 times. printed on the Bd shows the code indicates Ve/ Any hints?

[ReeceyBurger123]

Re: Philips 50PFP5332D/37 Plasma no picture VS/VA shutdown

Have you tested any voltages ?