Quote:
Originally Posted by BrackenFix
System RAM - TMS 4108-25JDL-0 (x8)
Video RAM - MPS 2114 45L 1280 (x2)
MPS6520 0179
MPS 6522 1380
8237 SY6502A
MC6821P 309-408
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The RAM chips are exactly as expected. The 6502 CPU and the 6522 VIA look to be the original components. However, one of the two 6520 PIAs has been replaced with a later equivalent (6821) so someone has worked on the board before which is useful to know.
By the way, when reseating the ROMs it's important to return them to their original positions.
Alan