Schematics (Commodore 64)

find below many schematics of the commodore 64 there are many variations of the console so the schematics may not be accurate to your specific version identifying ports components u1 cia 6526 (keyboard & joystick controller) u2 cia 6526 (serial bus / user port controller) u3 2364 (basic rom) u4 2364 (kernal rom) u5 2364 (character rom) u6 2114l 30 (color ram) u7 6510 (mpu) u8 7406 (hex inverter buffer) u9 4164 (dram 64kb 64k x 1 bit) u10 4164 (dram 64kb 64k x 1 bit) u11 4164 (dram 64kb 64k x 1 bit) u12 4164 (dram 64kb 64k x 1 bit) u13 74ls257 (quad 2 data selectors/multiplexer) u14 74ls258 (quad 2 to 1 data selectors/multiplexer) u15 74ls139 (dual 2 to 4 line decoder/demultiplexer) u16 4066 (cmos quad bilateral analog switch) u17 82s100 (pla) u18 6581 (sid) u19 6567 (vic ii) u20 lm556 (dual 555 timer) u21 4164 (dram 64kb 64k x 1 bit) u22 4164 (dram 64kb 64k x 1 bit) u23 4164 (dram 64kb 64k x 1 bit) u24 4164 (dram 64kb 64k x 1 bit) u25 74ls257 (quad 2 data selectors/multiplexer) u26 74ls373 (octal d type flip flop) u27 74ls08 (quad 2 input and gate) u28 4066 (cmos quad bilateral analog switch) u29 74ls74 (dual d type flip flop) u30 74ls193 (binary up/down counter with clear) u31 74ls629 (voltage controlled oscillator) u32 mc4044 (phase frequency detector)