C128(D) Assembly 310379

• Released in 1985.
• Schematic Number 310378.
• There are two revisions: Revision 6 and Revision 7.
• Mainboard is used in the C128 and C128D (Not the C128DCR).

• CPU : 8502 @ 1–2 MHz / Zilog Z80A, or Zilog Z80B @ 4 MHz
• RAM : 128kB DRAM
• ROM (C64 Mode) : 16kB ROM Total - 8k BASIC, 8k Kernal
• ROM (C128 Mode) : 64kB ROM Total - 48k BASIC, 16k Kernal, 16k C128 BIOS
• ROM (CP/M) : 4kB CPM/BIOS
• Graphics : VIC-II (40 col mode) / VDC-8563 (80 col mode)
• Sound : SID
• Interfaces : 2 Control Ports, A/V, RGBI, Datasette Port, Expansion Port, Serial IEC, TV RF, User Port
• Keyboard : 92 Keys
• Power Supply : External Transformer (9V AC + 5V DC)

Fig. 1: C128 310379 Mainboard Fig. 2: C128 310379 Rev 6 Layout Fig. 3: C128 310379 Rev 7 Layout

Cap   -  Value   - Rating - Type
C61   -  10uf    -  16v   - Radial
C62   -  10uf    -  16v   - Radial
C63   -  10uf    -  16v   - Radial
C69   -  10uf    -  16v   - Radial
C80   -  2.2uf   -  25v   - Radial
C85   -  10uf    -  16v   - Radial
C88   -  10uF    -  16v   - Radial
C91   -  1uf     -  50v   - Radial
C92   -  10uf    -  16v   - Radial
C101  -  10uf    -  35v   - Radial
C104  -  220uf   -  50v   - Radial
C105  -  330uf   -  50v   - Radial
C106  -  1000uf  -  25v   - Axial
C107  -  100uF   -  16v   - Radial
C111  -  10uF    -  16v   - Radial

Cap   -  Value   - Rating - Type
C61   -  10uf    -  16v   - Radial
C62   -  10uf    -  16v   - Radial
C63   -  100uf   -  6.3v  - Radial
C80   -  2.2uf   -  25v   - Radial
C85   -  10uf    -  16v   - Radial
C88   -  10uF    -  16v   - Radial
C91   -  1uf     -  50v   - Radial
C92   -  10uf    -  16v   - Radial
C101  -  10uf    -  35v   - Radial
C104  -  220uf   -  50v   - Radial
C105  -  330uf   -  50v   - Radial
C106  -  1000uf  -  25v   - Axial
C107  -  100uF   -  16v   - Radial
C111  -  10uF    -  16v   - Radial