C64 Assembly 250407 Cap List

  • Released in 1983
  • 8-pin board (CN5-Video port has 8 pins).
  • Version: A (CR).
  • Schematic Number 251138.

Specs

  • CPU : 6510 @ 1.0227277143 MHz (NTSC) / 0.9852484444 MHz (PAL)
  • RAM : 64kB DRAM
  • ROM : 20kB ROM Total - 8K BASIC, 8K Kernal, 4K Character
  • Graphics : VIC-II
  • Sound : SID
  • Interfaces : 2 Control Ports (CIA U1), A/V, Datasette Port (CIA U1), Expansion Port, Serial IEC (CIA U2), TV RF, User Port (CIA U2)
  • Keyboard : 66 Keys (CIA U1)
  • Power Supply : External Transformer (9V AC + 5V DC)

Schematics

C64 250407 Mainboard
Fig. 1: C64 250407 Mainboard
C64 250407 Layout
Fig. 2: C64 250407 Layout

Capacitor List

The first few production runs of the C64 came with 50v caps (more than likely due to parts availability). Later runs (and their schematics) use 25v caps. Our kits ship with 25v caps.

Cap  -  Value  - Rating -  Type
C8   -  10uf   -  25v   - Radial
C12  -  10uf   -  25v   - Radial (May be ceramic)
C13  -  10uf   -  25v   - Radial
C14  -  10uf   -  25v   - Radial
C15  -  10uf   -  25v   - Radial
C17  -  10uf   -  25v   - Radial
C19  -  2200uF -  16v   - Axial
C24  -  10uf   -  25v   - Radial
C34  -  10uf   -  25v   - Radial
C57  -  10uf   -  25v   - Radial
C62  -  10uf   -  25v   - Radial
C65  -  10uf   -  25v   - Radial
C88  -  1000uF -  16v   - Axial (Some use 470uf. We ship with 1000uf which is safe to use)
C90  -  470uF  -  25v   - Axial
C91  -  100uF  -  16v   - Radial
C94  -  10uf   -  25v   - Radial
C102 -  10uf   -  25v   - Radial
C107 -  10uf   -  25v   - Radial (Inside VIC-II shielded area)
C108 -  10uf   -  25v   - Radial (Inside VIC-II shielded area)

C38  -  4.7nf  -   *    - Ceramic

* Replace the 51pf cap with a 4.7nf cap to restore soft-touch RESTORE key function. This is included in our kit.


Purchase these caps in a kit from our store

Downloads

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