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Home Forums 68kMLA Tom Lee's Mac Plus Video Off Modification — #7
Post #7 by equant
Source Forum68kMLA
CategoryTroubleshooting
Post DateFri, 4 Jul 2008 - 11:03
Original URLhttps://68kmla.org/bb/threads/tom-lees-mac-plus-video-off-modification.13819/
Post
One terminal of L1 connects to one terminal of C2 in the original configuration. It's that connection that you want to break/remake with the switch. That is, one terminal of the switch should connect to the (now free) end of L1 that used to connect to C2. The other switch terminal should connect to the terminal of C2 that used to connect to L1.
I'm pretty sure that this (how you describe) is how it is. L1 has pivoted 180 degrees on the non-C2 connection in the photo. Don't know if that might be making it hard to interpret.

Next, the added rectifier should be connected across both terminals of L1, not the two PCB pads that used to connect to L1. From your photo, it seems that the diode's connections have not been updated.
Ah, I see. You are right. I'll fix that and test again.

Finally, I do worry that the initial wiring mod may have damaged something, but I assume that you have tested for this by booting with the switch closed, and verifying that all is well.
Right. Everything seems well when the switch is closed.

I'll fix the diode and see what happens. Thanks for your reply.

mp.ls