Star Micronics NX-1000 series - Defective Interface Operation

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TROUBLESHOOTING
4-5. Defective Interface Operation
NO
YES
START
Set at on line
Start print program
of host computer.
Is I/F
signal normal? *5
YES
Incorrect print
generated?
NO
Check operation
END
Check I/F cable.
Check or replace
1) IC2 (IC5)[IC1]
2) Gate array
3) CPU
( ) : Ver. 1.5 and Ver. 2
[ ] : Commodore type