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| Macintosh Classic chime but no video |
Posted by: bengi3 on 2019-04-21 00:02:54
So I am trying to liberate this Mac Classic. Analog is good (fine with another good logic), logic recapped: I got the chime but then dark screen and it reboots in a loop: chime --> dark screen --> reboot --> chime --> dark screen.
What to check then?
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Posted by: Bolle on 2019-04-21 00:56:04
Check the voltages. My guess would be bad analog board.
Different logicboards might slightly differ in voltage tolerance - this might be the reason that one board works but not the other.
I have yet to see a Classic that does not have bad caps on the analogboard.
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Posted by: bengi3 on 2019-04-21 01:54:57
thank you, your thought confirmed my intuition. will try this logic boand on a fully recapped analog from another Mac that I liberated a couple of months ago, and let you know.
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Posted by: bengi3 on 2019-04-21 04:44:49
No way: I tested this logic with another good and recently recapped analog:
https://youtu.be/uL20no3l-b8
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