[SOLVED]820-2610 - Won't turn on

[pws6074]

Guys,

I know this board is old, but i need to fix!
The costumer said, after start gets gray screen and another day the computer just don't turn on anymore.


I get:
PPBUS_G3H (schematics is 6v but i get 8.2v)
PPBUS_CPU_IMVP_ISNS
PPDCIN_G3H
PP3V42_G3H

SMC_RESET_L - 3.4v

I don't get:
PP5V_S3


I replaced C7771 and works.

But the client bring back exactly the same problem.
So, i check C7771 pin 1 and i get 0.34v. Something fuck up again this capacitor.

Do you guys can help me out?

 

[dukefawks]

Did you change it to a "normal" sized one?

 

[pws6074]

i take for the same another board 2610 - the same model and size

 

[dukefawks]

Yeah, bad idea. Change to normal sized 330uF. Got to run a bit of wire to hack it in.

 

[pws6074]

No Title

Duke, another one 330uF, but is more bigger then original one.
Take a look

 

[dukefawks]

Yes, bodge it in there with a wire. I use the original GND pad and run a wire from the cap to the coil.

 

[pws6074]

Ok,
Thanks, Duke.

 

[pws6074]

Replaced and works great!