Epson TM-U375 Technical Manual page 14

CONFIDENTIAL
FEATURES AND GENERAL SPECIFICATIONS............................... 7-1
ELECTRICAL CIRCUITRY OPERATING PRINCIPLES .................... 7-5
TROUBLESHOOTING ........................................................................ 7-11
ASSEMBLY ........................................................................................ 7-12
APPENDIX .......................................................................................... 7-14
CHAPTER 7
TM-U375P INFORMATION
Connectors ................................................................................
Interface .....................................................................................
DIP Switches .............................................................................
Component Connection Diagram ............................................ 7-5
Circuit Block Diagram ..............................................................
Power Supply Circuitry ............................................................ 7-6
Reset Circuit ..............................................................................
CPU .........................................................................................
Gate Array .................................................................................
Host Interface Circuit ............................................................... 7-10
Drawer Kick-out Drive Circuit .................................................. 7-10
Whole Unit Sub-assembly C .................................................... 7-12
Whole Unit Main Assembly 1 ................................................... 7-13
Main Circuit Board Diagrams ................................................... 7-14
Parallel Interface Circuit Board Diagram ................................ 7-16
Main Circuit Board Parts Layout ............................................. 7-17
Parallel Intrface Circuit Board Parts Layout ........................... 7-19
Overall Exploded Diagram ....................................................... 7-20
CONTENTS
7-1
7-1
7-4
7-6
7-7
7-7
7-8
7