Re: Asus Power supply Help

Attached volt notes to pict....

Re: Asus Power supply Help

De soldered the inductors , and every diode checked each one. All checked ok, Found another psu on ebay going to pick it up. (supposedly new) Once it gets here (and test it) I am going to use that as my reference to figure out what went bad on this board for my own sanity lol. Ill post what I found to be the culprit.

Re: Asus Power supply Help

DE-soldered and tested both parts. According to my Mega328 tester they are good. What has me scratching my head is the 4 wire connector/harness (3 yellows and one black) are reading over 5v (yellow wires) I'm partly wondering if one of the coils could be bad. If i probe on L905 i get 1.9v on one leg and 0 on the other. I tried hunting that parts PN. to see if I could find any specs and no avail on google.

Re: Asus Power supply Help

Yes,
Testing the board on the workbench.
No I haven't checked those yet. That was going to be tonight's project

Re: Asus Power supply Help

Using pict 5 as reference
pin 1 ground
pin 2 na
pin 3 2.2vdc
pin 4 2.2vdc
pin 5 0 (dimm)
pin 6 0 (on/off)
pin 7 na
pin 8 na
pin 9 na
pin 10 2.2vdc
pin 11 2.2vdc
pin 12 ground
pin 13 ground

Re: Asus Power supply Help

Best pict i could do with the lighting in the room... Will post power numbers shortly..
all 3 red box fuses check good...

Hi all,
First time post could really use some help on this one. Brief story its an asus 27" monitor that the cat knocked over and it never powered on again, not even the power light comes on. Anyhow I pulled it apart and saw 2 caps were kinda bulged on the top. (Marked with red dots in pict) so I replaced them. I also checked all the fuses on the board they passed. Tested it and still no power, I checked the main cap and when the board is plugged in its showing approx 170vdc. If I pin test the connector (all the +5v wired that goes to the logic board) are only at 1.7v.
One thing...

Re: New Members - please post your introductions here

Hi all,
I'm John, ASE cert automotive tech and engine machinist. I enjoy playing with electronics in my spare time. Lately it seems every bit of electronic stuff I own has been breaking lol