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Casio 140CR-272

Casio 140CR-272
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SERVICE MANUAL
(without price)
ELECTRONIC CASH REGISTER
140CR/PCR-272
(EX-260)
FEB. 2009

Questions and Answers:

Casio 140CR-272 Specifications

General IconGeneral
TypeElectronic Cash Register
Printer TypeThermal
Tax System4 Tax Rates
Paper Width58mm
DisplayLCD
PrinterThermal Printer

Summary

1. Specifications

1-1. Electrical specifications

Details power consumption, battery type, backup period, and clock/calendar accuracy.

1-2. Environmental specifications

Covers operating and storage temperature, humidity, and vibration strength.

1-3. Main components

Lists key components like CPU, thermal printer, and roll paper specifications.

1-4. Drawer List

Details the types and specifications of the cash drawer units.

1-5. Option List

Lists optional accessories such as roll paper, ink roll, and water cover.

2. Machine Initialization

2-1. To initialize the cash register

Outlines the essential steps for initializing the cash register before programming.

2-2. To load the memory protection batteries

Provides step-by-step instructions for inserting the memory protection batteries.

3. Disassembly

A. Removing the UPPER CASE block

Details the process for safely removing the upper case of the unit.

B. Removing the MODE-KEY-SW-ASSY

Describes how to remove the Mode-Key-Switch assembly.

C. Removing the 7 segment LCD

Explains the procedure for detaching the 7-segment LCD module.

D. Removing the MAIN PCB, PRINTER UNIT and MOTOR

Details the disassembly of the main PCB, printer, and motor components.

E. Removing the KEY-BOARD-ASSY

Outlines the steps required to remove the keyboard assembly.

F. Removing the DRAWER CASE

Describes the method for removing the drawer case from the unit.

4. Circuit Explanation

4-1. BLOCK DIAGRAM

Presents a block diagram illustrating the electronic cash register's architecture and connections.

5. Diagnostic Operation

5-1. To start the diagnostic program

Details how to access and initiate the diagnostic program on the cash register.

5-2. Content of the Test

Lists the various tests available within the diagnostic mode.

5-3. Displaying the Key Code

Explains how to view specific key codes during diagnostic testing.

5-4. Displaying the Switch Condition

Shows how to display the current status of various internal switches.

5-5. Check item

Lists the specific tests that can be performed in diagnostic mode.

5-6. Operation of each test

Provides operational steps for performing individual diagnostic tests.

6. Troubleshooting

140 CR

Lists common symptoms and their corresponding solutions for the 140CR model.

PCR-272

Lists common symptoms and their corresponding solutions for the PCR-272 model.

7. PCB Layout

8. Circuit Diagram

1. MAIN PCB CIRCUIT

Provides the detailed circuit diagram for the main printed circuit board.

2. DISPLAY PCB CIRCUIT

Shows the circuit diagram for the display printed circuit board.

3. MODE KEY PCB CIRCUIT

Presents the circuit diagram for the mode key printed circuit board.

9. Parts List

1. MAIN PCB BLOCK & DISPLAY BLOCK

Lists components for the main PCB and display block, including part numbers.

2. FINAL ASSY.

Details the parts included in the final assembly.

3. U-CASE ASSY

Lists the components for the U-case assembly.

4. KEY BOARD ASSY

Provides a list of parts for the keyboard assembly.

5. DRAWER S type (DL-13341843)

Lists the parts required for the Drawer S type cash drawers.

6. DRAWER M type (DL-2812)

Details the components for the Drawer M type cash drawer.

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