Coinco 9300-S Series, Operation And Service Manual

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Page 15
INTRODUCTION
The Troubleshooting Guide on the following pages is
intended to help locate problems within the coin
changer. If a changer cannot be repaired by
following the guide, return the changer to the nearest
Coinco Service Center for repair. If it is necessary
to return the changer to Coinco, please accompany
the changer with a brief description of the
malfunction to help expedite the repair and return of
the changer.
Logic troubleshooting minimizes time spent in
removing and replacing modules that are not
defective. Some failures are caused by minor
problems such as loose or faulty connections. Please
check the following before replacing any parts:
• Connectors are inserted correctly.
• Connector pins are not bent or broken.
• All wires are properly secured.
• Inventory tubes are filled to their correct levels.
NOTE : The following Troubleshooting Guide is
based on the fact that the tester or vendor, with
which the defective changer is being tested,
functions properly when used with a known good
changer.
This guide is not intended to cover all failures, but to
cover the most common failures.
Section 5: Troubleshooting
TROUBLE POSSIBLE CAUSE PROCEDURE REMEDY
No coin acceptance and No power Make sure the changer is plugged Plug changer into vending
no payout when into the vending machine or tester machine or tester
inventory switch is has power
actuated. Changer
appears to be dead Hinge acceptor down, check red Replace main logic board
LED next to price otption switch, if
LED is ON
If LED is OFF, check continually
Replace harness
between Jones plug pin 1 and P3
pin 4 and Jones plug pin 2 and P3
pin 2. (See figure 14, 15, and 16.)
If continuity does not exist between
all 3 pairs
If continuity does exist between all
Repair fuse or replace main
three pairs check foil fuse on back logic board
of main logic board. (See figure 16.)
If fuse is good check transformer as
Replace transformer
follows: Check between P7 pins 1
and 2 for approximately 12-18 VAC
(See fig.14, 15, and 16.) If no
voltage less than 12 VAC
If 12-18 VAC exists
Replace main logic board
9300-S TROUBLESHOOTING GUIDE