Q: converting 230v "Int'l Board" to 120v

[BGMK]

Hi guys, I'm new here but I have a question regarding converting my 230v Mac Plus to 120v....

From what I've heard and gathered so far, W12 must be added but is anything else required....? I mean other than adding a jumper to W12, do I have to replace/tweak any of the other components...? Thanks!

 

[retr01]

Hi @BGMK!

If your Mac Plus has an international version of the analog board and power supply, it should be ready to switch to 120V. See the "Macintosh Repair and Upgrade Secrets" (1990) book by Larry Pina on pages 56 through 59.

 

[BGMK]

Thank you so much retr01!

I suspected it would be so but wasn't able to find any documentation online about it, so thank you so much for the scanned pages! Really appreciate it

Hi @BGMK!

If your Mac Plus has an international version of the analog board and power supply, it should be ready to switch to 120V. See the "Macintosh Repair and Upgrade Secrets" (1990) book by Larry Pina on pages 56 through 59.

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[retr01]

No problem, @BGMK. I could not find Apple documentation about converting to 120V on the international Mac Plus.

@JDW, do you have that documentation?