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Troubleshooting
TEMP
D-BUS
D-BUS
TACHO
M-COM
P-LOAD
LEVEL
RS232
EMERG
FREE
COIN
INPUT
SERV
6638
Alt. 3
6580
2
6582
Activating service mode
Service mode is activated by using one of the
following alternative:
Alt. 1 Service switch on the CPU board under
the top cover on the front of the machine.
Alt. 2 Service switch on the I/O board at the
rear of the machine to the right of the
electrical connection.
Alt. 3 Service switch on the CPU card will be
activated via a link arm which can be ac-
cessed from the front below the top front
panel. (On machines with coin counting
only.)
Press the service button about 2 sec.
2
Alt. 2
Alt. 1