Wascomat EXSM 230 S, Operating & Maintenance Manual

Page: 63 / 124

63
Mechanical and electrical design
Operating time, accumulated coin value,
EPROM no.
The machine’s built-in service program can be
used to check the machine’s accumulated opera-
ting time, the accumulated coin value (for coin-
operated machines), and the program EPROM
part number.
Accumulated operating time
To check during normal operation
The machine needs to be actually operating
(program selected and started).
The buttons identified as A and B in the illustration
may be ”concealed” on some machines, in other
words, have no symbols or other markings. They
will still be usable for this function, however.
Press button A. The first two digits of a four-digit
number will now be displayed, e.g. 13.
Press button B. The last two digits of a four-digit
number will now be displayed, e.g. 47.
This means that the machine’s accumulated
operating time is 1,347 hours.
To switch on service mode
• Remove the machine top and the cover for the
program unit circuit board.
• Press the service switch. This switch is on the
left-hand edge of the circuit board when viewed
from the machine front. The display will now
show SE, which means that the service pro-
gram is activated.
Now some of the buttons switch to being number
keys (1 to 9). The start button becomes an ON/
OFF key.
To switch off service mode
Press the service switch again, or switch off the
machine power supply.
79
A
1
1
4
3
2
6
5
8
7
9
3385
3400
77
2242 2241
2224
A
+
B
A B
1,347 hours’ operating time
=
78
1
2
Service switch
Fig.
78
Fig.
79
Fig.
77