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Service Manual C-128/C128D Computer

In English
Commodore PN-314001-08
Publisher: Commodore Business Machines, Inc.
November, 1987
This book is available electronically at http://ftp.funet.fi/pub/cbm/schematics/computers/c128/manual/index.html

Table of Contents
SPECIFICATIONS1
PARTS LIST2
BLOCK DIAGRAM3
 
THEORY 
BUS ARCHITECHTURE4
8502 MICROPROCESSOR6
Z-80 MICROPROCESSOR8
MEMORY ARCHITECHTURE11
READ ONLY MEMORY15
RANDOM ACCESS MEMORY17
MEMORY MANAGEMENT UNIT20
PROGRAMMED LOGIC ARRAY28
8701 CLOCK GENERATOR30
VIDEO INTERFACE31
8564 VIDEO INTERFACE CHIP33
8563 VIDEO CONTROLLER36
8568 CRT CONTROLLER39
8580 SID41
R/W AMP FDD47
I/O - INPUT/OUTPUT CIRCUITS49
CASSETTE INTERFACE49
KEYBOARD51
EXPANSION BUS52
SERIAL BUS54
 
TROUBLESHOOTING 
COMMON LINE DEFINITIONS56
COMMON I.C.'S (PING ASSIGNMENTS & LOGIC)57
 
PCB 
PCB ASSEMBLY #310379 REV. 6
BOARD LAYOUT
63
PARTS LIST
64
SCHEMATIC DRAWINGS
66
PCB ASSEMBLY #310379 REV. 7
BOARD LAYOUT
70
PARTS LIST
71
SCHEMATIC DRAWINGS
73
RF MODULATOR NTSC77
C128 POWER SUPPLIES78
C128 MAJOR PARTS80
C128 COMPONENT PARTS & BOARD LAYOUT81
C128D SCHEMATIC #25245182



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