Re: My Viewsonic VX924 monitor died!

I was trying to find a replacement for the poly caps (H154J 250MPP1)
Are these Ok: MKS4F031502E00 [URL="http://www.wima.com/EN/WIMA_MKS_4.pdf"]WIMA MKS 4[/URL] ?

[edit] ok this is a Polyester not a Polypropylene cap...

Thanks.Re: My Viewsonic VX924 monitor died!

I was trying to find a replacement for the poly caps (H154J 250MPP1)
Are these Ok: MKS4F031502E00 [URL="http://www.wima.com/EN/WIMA_MKS_4.pdf"]WIMA MKS 4[/URL] ?

[edit] ok this is a Polyester not a

Re: My Viewsonic VX924 monitor died!

Hi,

C24 is definitely blown up.
Diode looks ok (440 Ohm in forward direction).
Secondaries: ~420 Ohm
C335 was always missing. Doesn't look as it has fallen off.

Re: My Viewsonic VX924 monitor died!

Hi,

Nice...and so fast.
Thanks for all the answers.

I think the transistors are the bad parts. One has a hole, and one fell apart when i tried to unsolder it (see last picture).

I can't see a picture when looking at the screen with a flashlight (but the power LED is still on). And yes, the voltages were measured with everything connected.

I tried to look for replacement transistors: will one of these fit?: PBSS4250X or DSC700400L

Thanks for all the additional measuring...

Re: My Viewsonic VX924 monitor died!

Hi,

Great board.
Good to see that i'm not the only one with this problem.

As described I replaced all the caps on the board. I also replaced the two parts mounted on the heatsinks.
But still... if i start my PC the screen looks normal for ~1s and then goes black (as described by bo2000).
The green power LED always stays on.

I tried to measure the voltages at the connector to the second board. One of the top pins shows 12V the other two ~0V...

Any solution for this...