Casio I/O-PB-11 Service Manual

CONTENTS
IN/ON-LINE BOARD I/O-PB-11 Page
1. TO INSTALL THE I/O-PB-11......................................................................... 1
2. INTERFACE .................................................................................. 3
2-1. C-In line (ECR to ECR) ......................................................................... 3
2-2. On line .................................................................................. 6
3. CIRCUIT EXPLANATIONS............................................................................ 8
3-1. Address selection.................................................................................. 8
3-2. Scale buffer circuit................................................................................. 9
3-3. On line circuit (RS-232C) .................................................................... 10
3-4. C-In line circuit ................................................................................ 12
4. DIAGNOSTIC OPERATIONS...................................................................... 15
4-1. To start the diagnostic operation......................................................... 15
4-2. Check Items for I/O-PB-11 .................................................................. 16
4-3. Operations ................................................................................ 16
5. ERROR CODE LIST ................................................................................ 24
6. IC DATA ................................................................................ 27
7. PARTS LIST ................................................................................ 30
8. PCB LAYOUT ................................................................................ 32
9. CIRCUIT DIAGRAM ................................................................................ 33

Casio I/O-PB-11 Specifications

General

Brand	Casio
Model	I/O-PB-11
Category	Cash Register
Language	English