I pulled the 7709 intact. I don't have enough faith in my diagnosis skills to clip the pins to remove DIL ic's just in case I get it wrong. I'll put the original back in the socket and see if I still have the healing aura about me. :-) -----Original Message----- From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Gerrit Heitsch Sent: Montag, 4. Februar 2013 16:47 To: email@example.com Subject: Re: VIC-II Sync & Luma signal On 02/03/2013 10:58 PM, Rob Clarke wrote: > Well, after replacing the modulator, the machine runs again but after a > few minutes the characters started breaking up. I suspected the 74ls258, > which was in fact a MOS 7709, which I hadn't spotted before. Spookily, > it corrects itself if I bring my finger within a cm or so of the chip. > Take my finger away, characters break up again. Replaced it and voila - > 100%! Ok, I never had that kind of failure before. You should have left it in place and show others how you can fix a Computer by just getting near it. ;) Gerrit Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2013-02-04 16:01:05
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