Re: VP201b with bad inverter

I un-soldered an original SMD fuse from the inverter of the second monitor. It may have been damaged slightly in that process. But this is just a guess.
Before I got the Pico Fuses I used regular fast acting fuses in a standard fuse holder for testing. Which works fine for just that purpose because it takes some time to order the Pico Fuses. I was not able to find them locally in any store.

I did a visual inspection of the caps and there was no bulging or leaking. Also the output voltage was stable at 17.9V.

The...

Re: VP201b with bad inverter

Just wanted to give an update.
Replacing the original SMD fuses with "resistor type fuses" from digikey.com (FUSE PICO FAST 2A 125V AXIAL ) fixed the monitor for now.

So I have 3 working monitors again which is great!!!

Thanks again for all the help.

Cheers, Marcello

Re: VP201b with bad inverter

Thanks a lot for checking - you

Happy Thanksgiving!!!

Re: VP201b with bad inverter

Thanks for replying.
Attached are the pictures of the board where the fuse failed after a day.
I will re-solder and replace the fuse.
If it's a bad driver it might be difficult to pin-point. If you have a replacement board that might be very helpful.

I will post back as soon as I have some more news.

Thanks again!!!

Marcello...

Re: VP201b with bad inverter

Thank you very much for taking the time to write a detailed response.
I re-soldered all the transformer pins and sure enough the monitor is working again!!!

With you guy's help I was able to fix 2 dead monitors that have been sitting in my office for a LONG time. Just could not get myself to recycle them and now they are perfectly good again
You guys are awesome.

I replaced the fuse on one a 3rd VP201b and it worked for about a day then the fuse blew again and the display went black.
Not quite...

First I want to thank you you guys for the great forum. It helped me wake up one VP201b from the dead. It had a blown inverter fuse...

Another VP201b does have a bad inverter board. I know this for a fact because I put the fixed inverter board into that monitor and it worked just fine.

The symptoms are as follows with the bad inverter. When I turn the monitor on the screen goes on for about a second then goes black; green light stays on for a while then goes to yellow.

So here are my questions:
- is there anything obvious besides the...