Phillips PSU bad capacitor

[Najtsob]

Hello,

I have a small problem. I found that 2 blue disc ceramic capacitor are burned.
I cant read the value from them. On PSU are marked with C705 and C734.
PSU is from philips TV. PSU code is DPS-298CP A. Can anyone please tell me caracteristic of this two capacitors?

Thanks for the help.

[stj]

Re: Phillips PSU bad capacitor

possibly the same as the lower pair, show a bigger picture.

[Najtsob]

Re: Phillips PSU bad capacitor

.

[stj]

Re: Phillips PSU bad capacitor

yea, looks like 2 identical circuits.
so all 4 are the same.
a good time to point out that they rarely fail without help - either the soldering was poor, or the tubes are very worn.

[Najtsob]

Re: Phillips PSU bad capacitor

Thank you! What are those numbers writen on PSU like C705? I know C is for capacitor but what are numbers for?

[stj]

Re: Phillips PSU bad capacitor

those numbers are just to reference the position against a diagram or parts list in a service manual.

what's printed on the caps??

[OobabeloO]

Re: Phillips PSU bad capacitor

this is likely 47uF and 33uF (DPS-298CP-A).

[yohnsee]

Re: Phillips PSU bad capacitor

this is likely 47uF and 33uF (DPS-298CP-A).

They can not be in uF range. Most likely 22nF/3KV or similar.
OP should tell us what he reads on the lower pair.

Edit: stj is right. You should check the bulbs and also the transformer. Those caps rarely fail.