68kMLA Classic Interface

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Mac Classic no boot
Posted by: Popjoel on 2018-09-18 12:25:23
No bong, someone knows what's wrong?

IMG-20180915-WA0003.jpg

Posted by: bibilit on 2018-09-19 01:35:29
Caps or worse battery probably.

Posted by: Popjoel on 2018-09-19 01:38:12
Français ?

Posted by: Popjoel on 2018-09-19 01:42:34
The battery is new and the caps of the analog board too.
The failure is random, after a few minutes it starts, sometimes ....

Posted by: bibilit on 2018-09-19 04:11:56
Français ?
yes

the caps of the analog board too.
And the ones on the Logic Board ?

Posted by: Popjoel on 2018-09-19 04:14:59
No! They did not seem damaged. That could be that?

Posted by: bibilit on 2018-09-19 04:39:54
Yes, like all boards of this era, should be done anyway.

Posted by: Popjoel on 2018-09-19 04:45:28
OK I will do it. Another advice? A particular component? While I am there ;-)

Thank You bibilit

Posted by: bibilit on 2018-09-19 05:42:21
Another advice?
get the board washed at the same time.

Posted by: Popjoel on 2018-09-19 05:46:21
I'm sorry, I'm using a translator.
A recommendation . Un conseil ?

Posted by: Popjoel on 2018-09-19 05:48:33
OK, Thank you.

Posted by: dochilli on 2018-09-19 23:18:53
Check the voltages at the floppy port. Must be 12, -12 and 5 V. Lower than 4.75V will result in a checkerboard screen. But if you recap the AB the voltages shoud be ok. Otherwise you have some other parts on the AB that shoud be replaced.

Voltages Floppy Port.jpg

Posted by: Popjoel on 2018-09-20 15:37:10
Capacitors replaced, voltage ok. Which components need to be replaced ?

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