Mac Color Classic won't power on

[amedeo_68k]

Hi,
I got another Mac Color Classic, and it won't power on.
The issue is on the logic board, swapping with another Color Classic logic board works.

I fully recapped the Logic board and the board itself is not looking too bad, pics attached..
ideas?
thank you !

 

[jajan547]

Reflow the EGRET have had this very issue with two or three Color Classics.

 

[amedeo_68k]

Ok, I'm going to try, I generally avoid heating up Egret as I have read that it break easily with high temp

 

[jajan547]

They can but I'm positive this is the issue

 

[imactheknife]

really, that's something I did not know either. Egret plays a big role.

 

[amedeo_68k]

And I definitely need a new Egret. The capacitor leakage made a quite bad damage… the board is trivial to fix. But some Egret legs have the consistency of sand, and one is broken.
Does anyone have one ?
Thank you !

 

[jajan547]

Don't have that EGRET I have two spares of another type. I think you can just bodge a wire onto the broken leg and jump a wire from that trace with the damaged pad. I have two 341S0851 EGRET's they might be compatible.

 

[amedeo_68k]

Actually this is Cuda, not Egret, may be compatible??

 

[3lectr1cPPC]

Cuda and Egret are the same chip.

 

[amedeo_68k]

Oh. Good to know. Thank you. May be I have a spare LC III with egret. But LC III had no soft power on… would it work ?

 

[amedeo_68k]

Hi, The Color Classic Is back alive...
Had to restore a few traces and Dremel the Egret in order to recover Pins
It Worked !!
Amedeo

 

[imactheknife]

Hi, The Color Classic Is back alive...
Had to restore a few traces and Dremel the Egret in order to recover Pins
It Worked !!
Amedeo

View attachment 45041

Good job!

 

[joshc]

Nice one, glad it's working again.

 

[LaPorta]

Always the most satisfying feeling when they spring back alive!

 

[amedeo_68k]

yeah! now going to fully recap the analog board too, it works, but I prefer to recap it