Adjustments
SC 303/313
24
013447-101_rev-07
SCAN COIN
9.3
Channel Drive Belt
If the channel drive belt (1) tension is too tight it will prevent the
feed mechanism from working properly.
a) Check the tension of the channel drive belt.
b) If necessary, select a different position for the intermediate
wheel (2).
Six different positions can be selected.
9.4
Coin Sensor
The sensor should be adjusted to give a pulse width of 8 to 10 ms
when a 15 mm (0.6") diameter coin passes.
a) Attach the probe leads of an oscilloscope to pins 2 and 3 of
connector CN1 on the CPU board.
b) Feed a 15 mm (0.6") diameter coin through the machine and
inspect the pulse width obtained.
c) The sensor is attached to the solenoid bracket on the underside
of the chassis.
Adjust the position of the sensor by moving the complete
solenoid unit.
Note!
It is not normally necessary to measure the pulse length after
replacing the sensor. It is sufficient just to adjust the sensor as close
as possible to the drive pulley without actually touching it.
04SM303
1 Channel drive belt
2 Intermediate wheel
3 Motor belt
1
2
3
Summary of Contents for SCAN COIN SC 303
Page 1: ...013447 101_rev 07 SCAN COIN SC 303 313 Coin Counters Service Manual...
Page 2: ......
Page 37: ...Circuit Diagrams and Layouts 31 013447 101_rev 07 SC 303 313 SCAN COIN PSU board rev 4...
Page 40: ...Circuit Diagrams and Layouts SC 303 313 34 013447 101_rev 07 SCAN COIN PSU board rev 4...
Page 41: ...Circuit Diagrams and Layouts 35 013447 101_rev 07 SC 303 313 SCAN COIN...
