Re: Problems with Samsung 740N monitors

Hi.

Does anyone here has a copy of Samsung's IP-35135B power+inverter board schematic diagram? The one that included in the Samsung *40N/T service manual does not match the parts on the board. I badly needed this one. I'll be thankful if you can share it with me.

Thanks

Re: Acer AL1916W Ab Monitor, DAC-19M008 - No Backlight, Recapped, Can see with Flashl

Inverter IC 0Z9910GN's VREF should be fixed at +5v.

Re: Testing VRMs

I think this is a chipset problem that I could not repair anymore... I went to test all the electrolytic capacitor, and all does have more or less same voltage as input voltage...

I have no time to check all the surfaced mount resistors, diode and capacitors... I'll just force him to buy another Motherboard...

His motherboard served him well for almost 3years...

R.I.P. Biostar "RedFox" GF7050V-M7 SE

Bought: 09/10/07
Died: 01/29/10

^_ _^

Re: Testing VRMs

I am having problem with my neighbor's PC... His motherboard (Biostar GF7050V-M7 SE) could not boot... It has a power but theres no display or even beeps... I already check all of the VRM mounted in the Motherboard, all does have output voltage that range more or less what the input voltage is...

My first tought was a Failed BIOS updates... But He doesn't even know how identify a computer parts... I still had to recover the BIOS thru AMIBOOT.rom BootBlock Recovery... No, the problem is not the BIOS...



Other components...

Re: Testing VRMs




thanks sir for the explanation sir... i have a motherboard with no power here, i already check every parts like processor, memory and psu, they are good.. i'm suspecting dead vrm......

Re: Testing VRMs

Source = Input
Drain = Ground
Gate = Output

...