HP X20LED 20" LED not working

[budm]

Re: HP X20LED 20" LED not working

The yellow and the green wires on the LED driver board, those two wires I am not 100% sure as to which one is for BL_ON and which one is for DIMMING, but one of them does go up to >3V when monitor is ON. Right now I need that DCV on the 00V cap by the LED connector to see if the booster is working or not.

[selldoor]

Re: HP X20LED 20" LED not working

The missing cap could also be the problem. The part number on U801 on the LED driver might help.

Hmm The missing cap is on the main board - had me looking for it for while.
Have you still got your pictures if so perhaps an indication of the size by comparing it to others on the board? Is it the same size as c721 or c715
C712 doesnt even look like a cap - it is black???? Burnt??

[lti]

Re: HP X20LED 20" LED not working

It looks like it's the same size as C721 and C712. I didn't take a picture of the back of the main board.

[angel-boy]

Re: HP X20LED 20" LED not working

The monitor is working again, i replace the C713 and U101 and all good,

Thank you all for your help !!!

[selldoor]

Re: HP X20LED 20" LED not working

That is great news - where did you get a U101 atmlh 010-02b

[angel-boy]

Re: HP X20LED 20" LED not working

i find on sale a broken board second-hand in my town and i bought fast !

I'm glad it works again !