Classic Power Mods

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Date: Thu, 2 Feb 95 19:09:26 GMT
From: tjfs@tadpole.co.uk (Tim Steele)
Subject: Classic Power Mods

Some tips on modifying Mac Classic Analog Boards!
-------------------------------------------------

If you want to modify a Mac Classic from 110v to 240v (or vice versa) use
these tables:

Late Revision Classic Analog Board (JP2 marked on PCB across CP13 location)

        110v            240v
JP1     Wire Link       -
JP2     -               Wire Link
CP1     220uF 250V      220uF 400V
CP13    220uF 250V      -
CP19    4.7nF 250V      10nF 250V               <-- Must be Class Y Rated
CP38    Wire Link       10nF 250V               <-- Must be Class Y Rated



Early Revision Classic Analog Board (JP2 not marked across CP13)

        110v            240v
JP1     Wire Link       -
CP1     220uF 250V      220uF 400V
CP13    220uF 250V      220uF 400V
CP19    4.7nF 250V      10nF 250V               <-- Must be Class Y Rated
CP38    Wire Link       10nF 250V               <-- Must be Class Y Rated