This is a Version A-CR PCB produced from 1983 (known revisions include Rev. A, Rev. B & Rev. C). From this version and forward, the Commodore 64 board had an 8-pin video jack.
The inside of the machine:
All voltage regulators and electrolytic capacitors have been exchanged for new ones as described in the C64 Capacitor Mod.
The VIC-II and the PLA chips both have heatsinks attached to keep them running cool. Heatsinks and thermal tape have been bought from the Retroleum.co.uk spares shop.
The machine was originally used at a Danish High School, so the character set has been changed to Danish by swapping the Kernal and Character ROM’s. I’ve had a few of these machines and it seems like the chips and adapters were manufactured by a professional company back in the days.
The special Danish characters look like this:
Capacitor C38 (51 pF) has been replaced by a 4.7 nF one to make the RESTORE key work like all the other keys as described in the C64 RESTORE Key Mod.
The outside of the machine:
As evident from the labels on the keyboard, the machine has a Danish keyboard layout. Instead of swapping the keys, small labels were added to indicate the new characters.
The machine had previously been used at a Danish High School and tagged with the school’s initials and the machine’s number on the side (‘BG/54’). The case is in pretty good shape and the number on the side just adds to the authenticity of the machine.
The power LED color is red.
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