Re: Samsung 713N with IP-35135A PS, no 5VDC

I replaced the three remaining caps with no luck. Still no 5VDC and the 'snapping' sound remains. Maybe replace the SMPS? But if its the component 'snapping' I think it may be working correctly and turning on/off due to another component 'overdriving' it.

Re: Samsung 713N with IP-35135A PS, no 5VDC

Thanks for all the advice. I'm going to order the remaining caps and let everyone know how it works.

Re: Samsung 713N with IP-35135A PS, no 5VDC

I also can hear a very faint, steady 'snapping' sound from the ps. Probably about 4 or 5 'snaps' per second The room has to be absolutely quiet but I can definitely hear it. Its too faint to be able to tell what exact component is doing it and I'm not going to press my ear too close to the big cap.

Re: Samsung 713N with IP-35135A PS, no 5VDC

Voltage on the big cap = 161vdc From what I've read on this forum the voltages should be over 350vdc?
The SMPS controllers part number is DM0565R, I'm trying to find a spec sheet on it now.

Sorry about the embedded pic. I did read the thread on photos and I thought that how I did it was the way the forum admin wanted it.

I've got a samsung 713N with the IP-35135A power supply. Looks to be a common supply with Dells, etc. Initially I had no power indications, no led status,etc. I found some obviously bad caps on the PS and replaced them. The following were replaced (2) 820uf, (2) 1000uf and (1) 330uf.

After replacement of the above caps the monitor status led is now rapidly blinking green. I checked for voltages and found I have only 1.4 VDC on both the 5VDC and 13VDC pins that come out of the PS going to the video board.

Without a schematic I'm a little lost as to what to check next....