I have a c64 that isnt working. It goes through a few different garbled screen but always ends up at this one. The power supply is good and getting te right voltages.
C64 vertical lines and blank spaces.
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Re: C64 vertical lines and blank spaces.
Ray Carlson's C64 diagnostics pages may help.
http://personalpages.tds.net/~rcarlsen/ ... 64c-ic.txt
So, maybe try swapping the CIAs (if socketed) and seeing if the screen changes. If so, then you'll need a new CIA.
http://personalpages.tds.net/~rcarlsen/ ... 64c-ic.txt
So, maybe try swapping the CIAs (if socketed) and seeing if the screen changes. If so, then you'll need a new CIA.
Re: C64 vertical lines and blank spaces.
The pictorial fault guide might help as well..https://derbian.webs.com/c64diag/
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