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A TROUBLESHOOTING
This section provides troubleshooting instructions
for the DBV
Series DBV-500 Banknote Acceptor
™
Unit, including the following information:
•
Introduction
•
Troubleshooting Overview
•
Fault Table Listings
•
LED Indication Conditions
Introduction
Most Banknote Acceptor failures result from minor
causes. Before replacing any parts, be sure that all
assembly and circuit board connectors are properly
fitted with their harnesses properly connected.
Poor performance by the DBV-500 Banknote
Acceptor is often caused when dust or foreign
objects adhere to the sensors or rollers. Clean the
Banknote validation section first, then carefully
observe the operating state of the Acceptor when
re-initializing power. This observation is important
Symptoms/Error
Messages
No external Power is applied to
Banknote Acceptor is
not working
(does not accept any
Banknotes)
Banknote jams occur
often
wider than 78 mm or narrower
P/N 960-100933R_Rev. 2 {EDP #233449}
DBV™ Series
DBV-500 Banknote Acceptor
A p p e n d i x A
Table A-1 General Fault Conditions
Possible Fault Causes
the Banknote Acceptor
(+12/24V DC & GND)
Wrong or inappropriate
connections
Corrupted Software
CPU Board failure
A Pressure Roller is dirty or
damaged
A pressure Roller Spring is
loose or missing
A foreign object is lodged in
the Transport path and/or
inside the Cash Box
The Acceptor Unit is not
properly set
The Banknote width is out of
specification (Banknote is
than 60mm)
in locating any causes of failure and the possible
fault location.
Perform all repairs by referring to Calibration and
Testing in Section 6 of this Manual, and the Disas-
sembly/Reassembly instructions in Section 4 of
this Manual.
Troubleshooting Overview
This product allows the operator to perform fault
diagnosis by checking various Fault Table Listings
against the symptoms. Survey the cause(s) of any
failure occurrences during the process.
After determining the cause of the failure, execute
the Performance Test, and then repair the unit
replacing any appropriate parts deemed necessary.
Fault Table Listings
Table A-1, Table A-2 and Table A-3 list the various
possible DBV-500 Unit fault conditions that can
occur and the necessary actions required to correct
them.
Corrective Action Required
Verify that the Power Supply +12/24V DC and Ground Cables are connected
to their appropriate Pins on the main connector.
Verify that all Harness Connectors are properly connected.
Check for any bent, missing or damaged Pins in the Connector Plugs and
mating Receptacles.
Re-download the correct Software.
Conduct an Initial Performance Test. If the test result is Negative (NG),
replace the CPU Board. Make sure to re-calibrate the Sensors after CPU
Board is replaced.
Clean all Pressure Rollers.
Replace as necessary.
Check all Pressure Roller Springs using a finger pressure test.
Replace as necessary.
Clean the Transport path and remove any foreign object discovered.
Ensure the Upper Guide Latches are secure and the Cash Box is properly
seated.
Use only Banknotes widths having the correct DBV-500 Unit's size
specifications.
© 2020 JAPAN CASH MACHINE CO., LTD.
A - 1
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