Phillips 42pfp5532d

[finntricky]

got this philips plasma, turns on, screen lights up, and sort of flashes light and dark, there is a buzz from the Y=SUS that seems to be in time with the screen flashing, but no picture, power supply is putting out correct volts, any ideas before i strip it down ?

[ReeceyBurger123]

Re: Phillips 42pfp5532d

Check the Zsus its likely to be causing the issue described, sounds like the Ysus is charging the panel but Zsus isnt working and not discharging the pixels there for no image.

[ReeceyBurger123]

Re: Phillips 42pfp5532d

Can you take pictures of the back of the set please and upload them. Dont throw it away either it could be something simple like failed ipm !

[finntricky]

Re: Phillips 42pfp5532d

ok, did'nt think Z-SUS was the problem, as it is the little yellow transformer that is buzzing on Y-SUS, but i disconnected the Z-SUS but left the Y-SUS connected and tv turned on, with no buzzing from the Y-SUS, screen never lit up,
also there was some bad caps, 6 on the power board, that i have replaced, just to rule them out,
i have added pics

[sordids999]

Re: Phillips 42pfp5532d

have you tested any voltages ?

[finntricky]

Re: Phillips 42pfp5532d

have you tested any voltages ?

only power supply at the moment, as only just got round to it, and all seem fine

[ReeceyBurger123]

Re: Phillips 42pfp5532d

Right ok do you know how to test for S/C (short circuit) ?

[finntricky]

Re: Phillips 42pfp5532d

just had a quick look at this for five mins, looks like Y-SUS is the prob, due to only having
-20/33 volts on VSC should be 100 i think, volts from power board are fine, dont think its worth spending money on, what do you think guys.

[dick_barton]

Re: Phillips 42pfp5532d

Are there Mosfets on the Ysus. May be worth checking out.

[finntricky]

Re: Phillips 42pfp5532d

quick update on this, i knocked it of the table, broke the screen, so now down the dump

[Andrew F. Ali]

Re: Phillips 42pfp5532d

Shucks!!!