Re: Help with DMM Fluke 12B Cap Reading

Just as a follow up. I ordered a replacement power supply and poped that one in. Now my screen powers on but the screen stays white and no menu comes up. So after reading up, it looks like that it is the T-Conn board might be bad.

...Just FYI if anyone reads.

Re: Hanns G HG281D White Out on Sides



Bringing up an old thread but, ordering the T-Conn board did fix your screen being all white? When your screen was white, could you access the menu on the monitor?...

Re: Help with DMM Fluke 12B Cap Reading


Ya, i'm trying to figure that one out myself!

If the fuse is the rectangular box in the picture, then yes its blown, no continuity across it. It reads "T4A 250V CQ" (4 amp fuse at 250V I assume). F1 is printed on the PCB and there is a burn mark right under it as well.

Just want to make sure, but Points 1-4 is the bridge rectifier, 5-8 the MOSFEt and 9-10 the fuse?

Thanks again!

-Jake...

Re: Help with DMM Fluke 12B Cap Reading

Thanks for the Confirmation!

I've been following that thread and going through the troubleshooting steps.
+5v stand by - +4.95V check (Post 110)
Voltages similar to post 119 and 121. - Check
Unplug power, attach controller card and power switch to test as in Post 111

then POP!!!!!! right when I plugged the power cord in.

The path from JR1 to where the "negative end of the big cap in the middle connects" curled up and peeled off in parts. --See pic

...

Hi all,

I'm trying to troubleshoot a Phihong Switching power supply model PSM217-404-H-R for my Hanns G HD281 Monitor that's not turning on. I think that is one/some of the caps that are bad. I have a Fluke 12b Multimeter that I got a while back. I tested the capacitance on C601 and it registered 21.5 uF on the Fluke. The specs for this cap are 400v 22uF -- right on spec. I go and test C502 (25v 470uF) cap and get the reading of 3000-7900 uF's. Testing the other caps in the area return the same type of results. I am putting the Red Lead on the positive side and Black lead on the...