I see there are different revisions of the SID chip. I have an 8580R6 Can I use any 8580 revision SID? Or even use a 6581 ? Best regards, Ed Johnson -----Original Message----- From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Marko Mäkelä Sent: Monday, January 30, 2012 2:02 AM To: firstname.lastname@example.org Subject: Re: LOW VOLUME SOUND C64c On Sun, Jan 29, 2012 at 04:43:51PM -0500, Ed Johnson wrote: >I checked the fuse inside. It was good. >The board is a PCB ASSY #252311 REV 3 > >I has a very sharp clear video picture. Better than the older bread box >version I tested the power supply with. > >Any other ideas? Could the SID chip be damaged? Over 20 years ago, I damaged a SID chip in an old-style C64 (+12V VIC and SID) by hot-plugging the audio output to a stereo receiver that was also hooked to an antenna amplifier that may have been powered from a different mains voltage phase. This could have caused a ground current. I cannot remember clearly, but I think that the audio was very quiet after the incident. Replacing the SID chip cured it. Marko Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2012-01-31 04:00:09
Archive generated by hypermail 2.2.0.