Microline 390/391-Plus
CAUTION:
Check the contacts and connections of the control board. If good contact is not made at all connections
and ground points, false diagnosis will occur.
ALARM
Lamp
Status
10
12
15
17
20
PR
OP
Courie
r
Roma
n
Helv
ette
Orator
Error
Conditi
on
Action
Blinking
ON
ON
Internal
RAM
Error
Replace the
main control
board.
Blinking
ON
ON
Serial
I/F
Connec
tion
Error
1.Reinstall
the serial
interface.
2.Replace
the serial i/f.
3.Replace
the main
control
board.
Blinking
ON
ON
Serial
I/F
Time
Out
Error
1.Replace
the serial i/f.
2.Replace
the main
control
board.
Blinking
ON
ON
Progra
m ROM
Error
1.Replace
the ROM.
Summary of Contents for MICROLINE Turbo ML390
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Page 53: ...Page 29 Service Guide ML390 391 Chapter 2 Principles of Operation ...
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