Macintosh color classic won't power on

[glay78]

The LED is not supposed to flash at all. Flashing could indicate power supply failure.

CC analog boards are prone to cap failure as well and need new caps most of the time (at least in the logic board power supply section)

Even the fan spins the analog board could be faulty?

 

[Bolle]

Yes. It might be fine with nearly no load attached (i.e. no logicboard installed) but once you have the logicboard in there it will draw a lot more power (especially on the 5V line)

 

[glay78]

Ok is there a list of capacitors for analog board to change out?

 

[Bolle]

http://www.maccaps.com/MacCaps/Capacitor_Reference/Entries/2015/1/11_Color_Classic_A_B_Bad_Cap_Ground_Zero.html

Those are the ones for the logicboard power supply - the ones that usually go bad. I did simply change all caps on my two CC analog boards while I was in there anyways.

 

[glay78]

Great awesome. Thank you so much 

 

[glay78]

http://www.maccaps.com/MacCaps/Capacitor_Reference/Entries/2015/1/11_Color_Classic_A_B_Bad_Cap_Ground_Zero.html

Those are the ones for the logicboard power supply - the ones that usually go bad. I did simply change all caps on my two CC analog boards while I was in there anyways.

Some updates, my CC as mentioned, flashes 5-6 times when trying to power on. I noticed I keep plugging in with rear power on and try powering via keyboard, it powers up after a day or two. Have to keep pressing power on keyboard at intervals after a day, the light stays longer each time until it powers on. 

Right after it power on, the screen will remain black until a minute or two then it will start normally. 

Is that some fault in th analog board?

 

[bibilit]

Analog Board capacitors done ? looks like PSU troubles to me.

 

[glay78]

Analog Board capacitors done ? looks like PSU troubles to me.

Not done. Only logic board was recapped. Yes looks like a PSU prob to me too.