On 11/12/2011 11:04 AM, Michał Pleban wrote: > Hello! > > W dniu 2011-11-12 10:48, Hoffmann-Vetter, Martin pisze: > >> Change the VIC-II and test if the problem leave or go. > > I replaced the broken VIC-II with another one I bought from eBay. The > old one was R1, and the new one is R3. So this leads me to the question, > are these versions fully interchangeable? Or do I have to get a R1 to > work properly? The 6569R1 can be replaced with a 6569R3 without problems. It is also advisable since it should produce a better picture (more luminance levels) than the R1. If you have a C64 handy, you should be able to borrow a VIC-II from there to see if that helps. A 6569R5 can be used too, but the HMOS-II Versions (8565R2?) can't! Before you continue check if the +12V supply for the VIC-II is OK, it's pin 13 if you want to measure directly at the chip. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2011-11-12 12:00:13
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