troubleshooting Macintosh II no-power situation

r.stricklin bear at
Fri Apr 21 18:11:26 CDT 2006

Howdy folks;

I've recently added a Macintosh II, IIx, and IIfx to my collection.

The IIfx works.

The II and IIx fail to power-up. Nothing happens when the power  
button is pressed on either machine.

It's not the power supply, as the PSU from the working IIfx fails to  
power up either the II or IIx.

It's not the battery either, at least in the case of the II, as I've  
replaced both batteries to no avail.

Can anybody point out any other likely culprits that I can chase down?



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