JCM RBA-40C, Integration Manual

Issue #4119-IGE-01-00

© 2020, JAPAN CASH MACHINE CO., LTD.

2 2

Section 8

RBA-40C™ Banknote Acceptor

Troubleshooting

This section provides Troubleshooting instructions 

for the RBA-40C™ Banknote Acceptor (RBA-

40C). This section contains the 



following information:

•  

Introduction

•  

Troubleshooting Overview

•  

Fault Table Listings

•  

Error Codes

•  

Reject Codes

Introduction

Most Banknote Acceptor failures are due to minor 

causes. Before replacing any parts, make sure that 

all assembly and Circuit Board Connectors are 

properly fitted and their Harnesses are properly 

connected.

Lower than expected Banknote acceptance by the 

Acceptor portion of the Unit 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 operat-

ing state of the Acceptor in detail when 



reinitializing power. This observation is important 

in locating any failure causes and the possible fault 

area. 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 

in Section 6 and the Disassembly/Reassembly 

instructions in Section 4 in the upcoming RBA-

40C Operation and Maintenance Manual.

Troubleshooting Overview

This product 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 process.

After determining the cause of the failure, execute 

the Performance Test, perform a Sensor 



readjustment and then repair the Unit by replacing 

any appropriate parts deemed necessary.

Fault Table Listings

Table 14 through Table 16 lists the various 



possible fault conditions that can occur, and the 

necessary actions required to correct them.    

8

TROUBLESHOOTING

Table 14 

General Fault Conditions 

Symptoms/Error 

Messages

Possible Fault Causes

Corrective Action Required

Banknote Acceptor is 

not working

(does not accept any 

Banknotes)

No external Power is applied to the 

Banknote Acceptor (24V DC & GND)

Verify that the Power 24V DC and Ground Cables are 

connected to their appropriate Pins on the main connector. 

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

Redownload the correct Software. Refer to “Software Download” on 

page 3 of the upcoming RBA-40C Operation and Maintenance Manual 

for Software downloading instructions.

CPU Board failure

Refer to “Performance Test Using a PC” on page 8 or “Performance 

Test without a PC” on page 16 of the upcoming RBA-40C Operation 

and Maintenance Manual, and conduct an Initial Operational Test. If 

the test result is Negative (NG), replace the CPU Board. Make sure to 

recalibrate the Sensors after CPU Board is replaced.

Banknote jams occur 

often

Drive Belts are dirty or damaged

Clean all Drive Belts and Pressure Rollers.
Replace as necessary.

A pressure Roller Spring is loose or 

missing

Check all Pressure Roller Springs using a finger pressure test.
Replace as necessary.

Banknote jams occur 

often

A foreign object is lodged in the 

Transport path

Clean the Transport path and remove any foreign object discovered.

Banknote jams occur 

often

The Acceptor Unit is not properly 

seated all the way into the Frame

(the Acceptor Unit’s Latch Release 

Levers are not locked onto the Frame)

Reseat the Acceptor Unit back into the Frame and confirm the 

Acceptor Unit Release Lever Latches securely lock onto the Frame.

Banknote width out of specification

A Banknote is wider than the specified width.



Use only Banknotes widths having the correct Banknote size 

specifications. (Refer to “Technical Specifications” on page 6).

Abnormal 

Acceptance rates

Dirt and/or stains on the Rollers, Belts 

and Lenses

Clean the Transport path. Refer to “Cleaning Procedures” on page 12 

of this Manual.

The Unit has been disassembled and 

recalibration adjustments have not 

occurred following a reassembly.

Make sure to calibrate the Sensors after reassembling the RBA-40C 

Unit. Refer to “Calibration” on page 5 of the upcoming RBA-40C 

Operation and Maintenance Manual.

The wrong Software or an old version 

of the Software is being used.

Make sure that the programmed Flash or EPROM Memory Software is 

the latest version, and it supports the Currency values for the 

specific Country.

Software not designed to accept 

current Banknotes

Check the particular specifications for the required Banknote Type 

Acceptance, and make sure the Banknotes will be accepted by the 

Software loaded (e.g., check denomination/issuing year, etc.).