In English

Publisher: Commodore Business Machines, Inc., January, 1985

Commodore PN-314002-01

Preliminary.

(no covers)

Table of Contents

SPECIFICATIONS	1
BLOCK DIAGRAM	2
CARE AND MAINTENANCE	3
OVERVIEW	4
FLASH CODE	4
CIRCUIT THEORY
POWER SUPPLY	5
RESET CIRCUIT	6
CLOCK CIRCUITS	7
MICROPROCESSOR CONTROL OF RAM & ROM	8
SERIAL INTERFACE	9
MICROPROCESSOR R/W AND MOTOR CONTROL LOGIC	10
READ/WRITE CONTROL LOGIC	11
READ AMPLIFIER	12
WRITE AMPLIFIER	13
POWER UP/DOWN WRITE PROTECTION	14
STEPPER MOTOR CONTROL CIRCUITS	15
SPINDLE MOTOR CONTROL CIRCUITS	16
TROUBLESHOOTING GUIDE	17
RESISTANCE CHECKS	19
CASEWORK/ACCESSORY PARTS LIST	20
MODEL IDENTIFICATION	21
DEVICE NUMBER CHANGE	21
PCB ASSEMBLY 1540001
BOARD LAYOUT	22
PARTS LIST	23
PIN CONFIGURATIONS	25
SCHEMATIC	25
PCB ASSEMBLY 1540048
BOARD LAYOUT	26
PARTS LIST	27
UPGRADE NOTES	29
SCHEMATIC	29
PCB ASSEMBLY 250442, 250446
BOARD LAYOUT	30
PARTS LIST	31
IC PINOUTS AND INTERNAL DIAGRAMS	33
SCHEMATIC	33
POWER SUPPLY ASSEMBLY 1540002
PARTS LIST	34
TRANSFORMER	34
ASSEMBLY DRAWING	34
ALPS DRIVE ASSEMBLY
PARTS LIST	35
WIRING DIAGRAM AND LAYOUT	35
MOTOR CONTROL PCB SCHEMATIC	36
NEWTRONICS DRIVE ASSEMBLY
PARTS LIST	37
WIRING DIAGRAM AND LAYOUT	37
MOTOR CONTROL PCB SCHEMATIC	38