Re: Dell U2312H Repair

Hello everyone. The parts I ordered finally arrived yesterday. @budm was right, I only needed to replace the 1084-33 chip to make my monitor work again.

Although the monitor already worked without replacing the capacitors, I changed all of the electrolytic capacitors anyway since they were from a known bad manufacturer (Su'scon).

Thank you everyone for the help.

Re: Dell U2312H Repair

Do you have any idea why it went bad? I'm wondering if and what components up the chain that might have caused I301 to go bad.

How about I802? I read that I should only have one reading for the LED pins; but I was able to get a second reading, with the polarity reversed.

Re: Dell U2312H Repair

budm, I have different readings based on the polarity of my probes:

Black on GND + Red on Vout: 1.336KΩ
Black on Vout + Red on GND: 0.353KΩ

Re: Dell U2312H Repair

I am also attaching the images in this post. So sorry for using another image hosting site....

I have a Dell U2312H that suddenly won't turn on anymore. The display and
backlight won't turn on; the blue power LED stays off even when I press the
power button. These have the L0281-1N power boards which are the same ones used
for the Dell P2312H and P2012H, among others (according to Google).
Unfortunately I can't find any schematics for this particular board.

I have made some measurements to some of the components from the power board
and main board. These were all tested in circuit (i.e. I didn't solder them
out). Readings are ordered by pins...

Hello Everyone.

I have a (busted) TASK PSU ( Model: TK-945TX-DF ). It really has a weird problem of sometimes letting my PC boot or sometimes not at all ( no powering of LEDs, HDD, CDROM, etc. as in no power at all. ) I don't know what's causing my PSU to do this.

Anyone here have any ideas or can explain why this weird stuff happens? I'm pretty sure that this PSU is at fault here since I've replaced it with a generic PSU and my PC can boot now.

I'm currently using the TASK PSU as to power up my HDD, CDROM, and some fans. Using it as...