A1466 820-00165-A

[hgoncalves]

I have an A1466 820-00165-A that has green light, no fan spin and no power (consumes 40 mA on PS).

I realize that the U1950 was burnt (with pad 8 blown without pad), R1950 burnt without both pads, C1950 burnt without pad 1, and i think that this is the cause of the behaviour.

I try to scratch the pads to make some jumpers, but i cant find the tracks., and it seems that it will be very hard to "reconstruct" some of those signals.

How can i make some jumpers (from where; i think that i need to make the jumper before the sgnal arrives to the pad, and not when it parts away from the pad), to bring signal to the missing pads? Is this approach the best approach?

 

[2informaticos]

Forget the cap, rebuild trace pad 8 only.
Easy job, I usually use 0.03 mm enamelled wire.

 

[hgoncalves]

Hi, thanks for the reply.

should i make a jumper from R8131 to U1950? And what about R1950 (it´s also missing?

 

[2informaticos]

You have 3V42_G3H trace 2-3mm away from pin 8; look at a good board.
Replace R1950, of course.

 

[hgoncalves]

It worked like this!
Don't know if it was the best way, but for me it worked.
Thanks.

 

[2informaticos]

Is a very big trace for 3V42_G3H near U1950 pad 8; just look at a clean board.