In English
Commodore PN-314260-01	Publisher: Commodore Business Machines, Inc. November, 1990

Table of Contents

SECTION 1 - SPECIFICATIONS
1.1 PRODUCT SPECIFICATIONS	1-1
SECTION 2 - THEORY OF OPERATIONS
2.1 CONTROL CIRCUIT BLOCK	2-1
2.2 PARALLEL INTERFACE PIN CONFIGURATION	2-3
2.3 CBM SERIAL INTERFACE	2-5
2.4 OPERATION PANEL AND SWITCHES	2-8
2.5 DIP SWITCH FUNCTIONS	2-9
SECTION 3 - TROUBLESHOOTING
3.1 DISASSEMBLY AND ASSEMBLY	3-1
3.2 DISASSEMBLING THE MECHANICAL ASSEMBLY	3-10
3.3 TROUBLESHOOTING	3-16
3.4 FPC RESISTANCE VERFICATION	3-21
3.5 ADJUSTMENTS AND LUBRICATION	3-22
SECTION 4 - PARTS
SPARE PARTS LIST	4-1
1270 PARTS REFERENCE DIAGRAM	4-1
CONTROL PCB ASSEMBLY	4-2
TERMINAL PCB ASSEMBLY	4-3
PAPER END PCB ASSEMBLY	4-3
SECTION 5 - SCHEMATICS
MPS-1270 PARALLEL MODEL	5-1
MPS-1270 SERIAL/PARALLEL MODEL	5-2