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Casio CE-2350 User Manual

Casio CE-2350
47 pages
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SERVICE MANUAL
ELECTRONIC CASH REGISTER
CE-2350 (EX-259)
JAN. 1995
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Casio CE-2350 Specifications

General IconGeneral
BrandCasio
ModelCE-2350
CategoryCash Register
LanguageEnglish

Summary

3. MAC (Memory All Clear) Operation

MAC Operation Procedure

Step-by-step instructions for performing a memory clear operation.

4. Diagnostic Operation

Starting Diagnostic Operation

Details the initial steps to start a diagnostic program.

Hard Check Functions

Details various hard check functions executed by numeral keys and ST button.

Display, RAM, Drawer, Printer Check

Specific test for display, RAM, drawer, and printer functionality.

RAM Read-Only Check

Procedure for performing a read-only check on the RAM.

Memory Back-up Battery Voltage Check

How to check the voltage of the memory back-up battery.

6. Circuit Explanation

Power Supply Circuit

Explanation of the power supply circuit operation and voltage points.

PWD Signal Operation

Details the PWD signal operation and its relation to power failure.

CPU (uPD75516GF-351-3B9) Pinout

Pin assignments, signals, descriptions, and PW-ON levels for the CPU.

CPU (uPD75516GF-351-3B9) Pinout (Continued)

Continues CPU pin details, including key inputs and memory signals.

Motor Error Detection Circuit

Explains the circuit that detects motor errors and stops the motor.

Mode Key Switch Status Read

Describes how the CPU reads mode switch status via voltage levels.

RAM Address/Head Drive Signal Switching Circuit

Details the circuit for switching between RAM address and head drive signals.

Printer Error Condition of CPU

How the CPU detects and handles printer errors.

System Block Diagrams

Parts List Information

Notes and Remarks for Parts List

Explains pricing, ordering, and remark codes for parts.

1. Main PCB Assembly Parts

Main PCB Component List

Detailed list of components and their specifications for the main PCB.

Main PCB Component List (Continued)

Continues the list of components for the main PCB.

8. Printer Block and Related Parts

9. Printer Unit Exploded View

9. Printer Unit Parts List

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