To Exit The Diagnostic Test - Casio PCR-365A Service Manual

3-8. RS232C port test
Input "2" "0" "7" + "#2" key.
Execute the RS232C loop back test continuously using loop back connector.
In case an error happens, the machine issues an error receipt then stop this test.
Test description:
To stop this test, turn the mode switch to "OFF" position.
Loop back connection:
TxD 2
RxD 3
DSR 6
Normal End
232C OK

6-4. To exit the diagnostic test

To escape the diagnostic test mode, execute "INITIALIZE (MAC) operation".
1: Level check at DSR signal ( Low/High)
2: Send the data (05Ah) from TxD and receive it at RxD terminal.
— 20 —
Error End
232C ER
X: Error code
0: Time over
1: Over run error
2: Framing error
3: RXD line data error
4: DSR line receive error
X