JCM Part No. 960-000076R_Rev. 1
© 2007, JCM-American Corporation
A - 1
WBA
®
Series
World Bill Acceptor (WBA
®
-1x/2x -SS & SS2)
A p p e n d i x A
A TROUBLESHOOTING
This section provides Troubleshooting instructions
for the World Bill Acceptor Series (WBA). This
section contains the following information:
•
Introduction
•
Troubleshooting Overview
•
Fault Table Listings
•
Performance Tests
•
LED Diagnostic Codes
Introduction
Most Bill Acceptor failures are due to minor
causes. Before replacing any parts, make sure that
all assembly and circuit board connectors are prop-
erly fitted and the harness is properly connected.
Faulty bill acceptance by the Bill Acceptor is often
caused when dust or iron powder adheres to the
identification sensor, magnetic sensor or Transport
belt. Clean the acceptor section first, then observe
the operating state of the Bill Acceptor in detail
when initializing power. This observation is impor-
tant in locating any failure causes and the possible
fault point. If the acceptor head has to be repaired
by disassembling it, always recalibrate the sensors
following a repair.
Perform all repairs by referring to the Calibration
and Flash Memory Software Downloading section
in the Section 7 Adjustment and Performance Test
Section, and in the Section 4 Assembly/
Disassembly Instructions Section.
Troubleshooting Overview
The WBA allows the operator to perform fault
diagnosis by checking various fault table listings
against the symptom and survey the cause(s) of any
failure occurrences during the process.
After determining the cause of the failure, execute
the Performance Test, perform a sensor readjust-
ment and then repair the WBA Unit replacing any
appropriate parts deemed necessary.
Fault Table Listings
Table A-1 through Table A-3 list the various
possible WBA fault conditions that can occur and
the necessary actions required to correct them.
Table A-1
General Fault Conditions
Symptoms/Error
Messages
Possible Fault Causes
Corrective Action Required
Bill Acceptor is
not working
(does not accept
any bills).
No external power is
applied to the
Bill Acceptor
(+12VDC & GND)
Verify that the Power 12VDC and Ground cables
are connected to the appropriate pins on the main
connector. NOTE: The small LED to the right of the DIP
Switches indicates power available when lit.
Wrong or inappropriate
connections
Verify that all harness connectors are properly seated.
Check for any bent, missing or damaged pins in the
connector plugs and mating receptacles.
Corrupted software.
Re-download the correct software. Refer to “Forced
Download Mode” on page A-9 of this Section for software
downloading instructions.
CPU Board failure.
Refer to the “Performance Tests” on page A-4 of this
Appendix and conduct an Initial Operation Test. If the test
result is Negative (NG), replace the CPU Board.
(For WBA-11/13 only)
The EPROM is inserted
backwards.
Remove the Acceptor Unit from the frame.
Remove the EPROM from CPU Board and reinsert it in
the correct direction.
