68kMLA Classic Interface
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| Click here to select a new forum. | | Adjusting focus (R57) on an international Mac Plus analog board does nothing | Posted by: pfinn on 2025-05-29 06:11:32
I have an international Mac Plus with a very blurry screen towards the edges. Center pixels seem okayish. When I adjust the R57 pot meter (focus) nothing happens on the display. Using my multimeter I can confirm that the pot meter varies resistance between about 0 to 2M ohm, so it seems to be fully functional. Does anyone have any ideas what could be the problem? | | 1 |
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