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Universal Bill Acceptor (UBA-1x-SS & x4-SS-SU)
A TROUBLESHOOTING
This section provides Troubleshooting instructions
for the Universal Bill Acceptor Series (UBA). 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 acceptor in detail when ini-
tializing power. This observation is important in
locating any failure causes and the possible fault
point. If the acceptor head has to be repaired by
Symptoms/Error
Possible Fault Causes
Messages
No external power is applied
Bill Acceptor is not
working
(does not accept any
bills).
inserted into the CPU Board
JCM Part No. 960-000097R_Rev. 3
UBA
A p p e n d i x A
Table A-1 General Fault Conditions
to the
Bill Acceptor
(+12VDC & GND)
Wrong or inappropriate
connections
Corrupted software.
CPU Board failure.
ICB Sensor Board is not
socket.
(For UBA-11 only)
The EPROM is inserted
backwards.
®
Series
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 "Adjustment Procedure" on page 6-5 of Sec-
tion 6, and in the Disassembly/Reassembly area of
Section 4 in this Service Manual.
Troubleshooting Overview
The UBA 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 UBA Unit replacing any
appropriate parts deemed necessary.
Fault Table Listings
Table A-1 through Table A-3 list the various possi-
ble UBA fault conditions that can occur and the
necessary actions required to correct them.
Corrective Action Required
Verify that the Power Supply +12VDC and Ground cables are
connected to the appropriate pins on the main
connector. NOTE: The small LED to the left of the front panel
DIP Switches indicates power available when lit.
Verify that all harness connectors are properly seated.
Check for any bent, missing or damaged pins in the connector
plugs and mating receptacles.
Redownload the correct software. Refer to "Software
Downloading Procedure" on page 6-2 of Section 6 for software
downloading instructions.
Refer to the "Performance Tests" on page A-5 of this Appendix
and conduct an Initial Operation Test. If the test result is
Negative (NG), replace the CPU Board. Make sure to recalibrate
the sensors after CPU Board is replaced.
Remove and then reinsert the ICB Sensor Board into the CPU
Board socket.
NOTE: The ICB Sensor Board must be inserted in place
regardless if its features are being used or not.
Remove the Acceptor Unit from the frame.
Remove the EPROM from CPU Board and reinsert it in the
correct direction.
A - 1
© 2010, JCM American, Corporation
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