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| Just Bought a Classic II with a problem. |
Posted by: EmNem543 on 2021-11-12 20:29:51
I just bought a classic II with the lines and garbage on the screen. I don't have the machine yet, but does anyone have a good idea of what the problem is? I can do a recap and cleanup of a battery bomb if that's what the issue is. |
Posted by: EmNem543 on 2021-11-12 20:36:46
or any tips on what to do before turning it on or anything |
Posted by: joshc on 2021-11-13 00:32:07
All Classic IIs, if not yet restored, need at the very least both the logic board and analog board recapping. I wouldn't do further diagnosis until you've at least completed that step first. See where that gets you, the symptoms might change or dissapear completely after a recap. Often some chips will need thorough cleaning and/or removal and resoldering - the main ones being some logic ICs next to the battery holder/CPU, the Egret chip (responsible for the startup circuit), and the DFAC (Apple sound chip) and nearby onboard RAM chips. Make sure everything is squeaky clean after your recap. |
Posted by: dochilli on 2021-11-13 01:33:11
Yes, a recap should be done. Then check the voltages at the floppy port. Sometime the analog board needs some new components. Hopefully you do not see a bombed battery on the LB... |
Posted by: cheesestraws on 2021-11-13 02:24:22
Yeah, the CII gets very grotty inside. |
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