Rowe BC-3500 Instruction Manual

Bill & Coin Changer
with Fast Pay System
BC-3500
BC-3500
Bill & Coin Changer
with Fast Pay System
Field Service Manual
and
Parts Catalog
PART NO. 25238801
REV. N

Rowe by American Changer
1400 N.W. 65th Place
Fort Lauderdale, Florida 33309
[email protected]
Printed in USA
BC-3500
Bill and Coin Changer
Field Service Manual
and
Parts Catalog

Machine Safety
Your safety and the safety of others are very important to
American Changer.
We have provided important safety messages in this manual and on your machine. Always read and
obey all safety messages.
All safety messages will tell you what the potential hazard is, tell you how reduce the risk of injury, and
tell you what can happen if the instructions are not followed.
This is a safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either “DANGER”,
“WARNING”, or “CAUTION”.
These words mean:
You can be killed or seriously injured if you don’t immediately
follow instructions
You can be killed or seriously injured if you don’t follow
instructions
You can be injured if you don’t follow instructions
Distributors, retailers, operators, and/or service people are to insure the following warning label is
properly affixed on the ACC products to which you/they are using and/or servicing in order to help
meet the applicable Proposition 65 requirements. For more information go to
www.P65Warnings.ca.gov

Important Safety Instructions
DANGER: To reduce the risks of severe injury
secure the machine to a stable structure.
WARNING: To reduce the risk of electrical shock,
disconnect all electrical power to the machine
before servicing.
NOTICE: For indoor use only.
NOTICE: Ensure this machine is level when
installed
SAVE THESE INSTRUCTIONS
American Changer does not guarantee machines (products) or services to be 100% secure against criminal
attempts. All machines (products) and services are to be used in accordance with business best practices and the
owner’s or operator’s best judgement.
Installation, use, service and maintenance must be performed in accordance with applicable machine (product)
manuals provided by American Changer and comply with any and all pertinent laws or regulations.
Inspect your machine (product), at a minimum annually, by a qualified service technician.
Dimensions and weights are reasonably close estimates. Specifications in this manual can vary without notice.

Section 2 – Setup & Installation
2.2 – Mounting Instructions
This machine must be installed in accordance with local codes. If you are unsure in any way what your
local codes are or unsure of anything in the following steps, please hire a licensed professional to
mount your machine.
1. Disconnect any and all AC power going to the machine. (Unplug AC line cord from the rear of the
machine.)
2. Note: You will need to verify with the building code enforcement to see if it is allowable to plug the
changer into a grounded outlet. If it is not, there must be 120VAC run through conduit or other
means to meet local codes to the changer. If it is not required, proceed to step #6.
3. Have a licensed electrician run the conduit, install the new breaker, wire and help decide how the
wiring will enter the changer (from the back or the bottom).
4. After the conduit has been installed, proceed with securing the machine to a stable structure.
5. Find an appropriate stable structure which to secure the machine to.
6. NOTICE: BEFORE SECURING ENSURE THE MACHINE IS LEVEL.

7. : PROPERLY SECURE MACHINE (PRODUCT) TO THE FLOOR SO THE MACHINE
(PRODUCT) CANNOT BE MOVED OR TIPPED. USE STRUCTURAL SOUND FASTENERS THAT CAN BE
PROPERLY TIGHTENED AND SECURE THE MACHINE (PRODUCT) THROUGH EACH OF THE HOLES IN
THE BASE OF THE MACHINE (PRODUCT) TO THE APPLICABLE SURFACE TO WHICH IT IS BEING
SECURED.
8. Use the four holes located in the back, bottom, or sides of the cabinet to secure the machine to a
stable structure.
9. Verify that the machine is properly secured to the stable structure.
10. Connect your AC line to the outlet. If conduit was run wire it to the power supply located in the
machine.
a. Do not use an extension cord unless allowed by the building electrical code.
b. Installation is completed. Proceed to the “Programming the Changer” section.
The proper performance of your American Changer machine is directly related to the quality of the power it is
supplied. AC power fluctuations, including blackouts, brownouts, over voltages, sags, surges, and spikes may cause
the machine to miss pay. To ensure the most trouble-free operation, we strongly recommend plugging all of our
machines into a DEDICATED AC outlet (this means there are no other machines on location plugged into the same
AC line). A simple way to check if this is true is to turn off the breaker associated with our machine at the breaker
box. No other equipment on location should lose power.
Additionally, if your unit is located in an area prone to lightning storms or other sources of frequent power
disturbances, we also strongly recommend using an Uninterruptible Power Supply (UPS). If power is lost during a
payout to a customer, a UPS will allow your machines to complete the transaction that would otherwise not be
completed. In some cases, a UPS may also correct long-term under and/or over voltages on the AC line by
converting to the proper line voltage before the power reaches the machine.
Every American Changer machine has a surge suppressor built into the main logic board. This helps eliminate
power related noise problems, but it will not protect from substantial voltage spikes or nearby lightning strikes. If
this is a concern for your area, we recommend purchasing a commercial grade UPS with integrated surge
protection. NOTE: A POWER STRIP IS NOT A SURGE PROTECTOR.

ii 25238801
WARNING:
This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance
with the instructions manual, may cause interference to radio communications. It has been tested and found to
comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are
designed to provide reasonable protection against such interference when operated in a commercial environment.
Operations of this equipment in a residential area is likely to cause interference. In which case, the user, at his own
expense, will be required to take whatever measures may be required to correct the interference.

25238801 iii
Preface
Thisservicemanualisdividedintosixsections:
Section 1 System Description — Introduces you to the BC-3500, its features, and its major components,
principlesof operation, and capacities.
Section 2 Installation and Programming — Guides you through step-by-step installation instructions and
detailedsetup(programming)procedures.
Section 3 Routine Service — Provides routine service instructions for general maintenance and preventive
maintenance. Thissection provides information for routineservice and identified problems. Refer to
Section4:Troubleshootingforproceduresand techniques to identify a malfunction orrejectproblem.
Section 4 Troubleshooting — Provides troubleshooting charts, detailed error message descriptions, trouble-
shootingprocedures, a blockdiagram, schematics, circuit board layouts, and components lists. This
section also contains a detailed sequence of operation.
Section 5 Miscellaneous — Contains a harness color code list and other miscellaneous information.
Section 6 The Parts Catalog — Lists and illustrates all replaceable modules in the BC-3500.
Thismanual is intended for owners, route operators, and technicians. It providesall field and shop related service
and maintenance material. Accessories and their installation and service are discussed in the corresponding
accessoryinstructions(ormanuals).

Table of Contents
iv 25238801
SECTION 1 — SYSTEM DESCRIPTION
Introduction ......................................................................................................................................................... 1-1
General Operation .............................................................................................................................................. 1-1
Changing a Bill ................................................................................................................................................... 1-1
Changing Coins ................................................................................................................................................. 1-2
Functional Description ....................................................................................................................................... 1-2
BillTransport ....................................................................................................................................................... 1-2
Dual Bill Stacker ................................................................................................................................................. 1-3
Coin Acceptor ..................................................................................................................................................... 1-4
Solid-State Coin Switches ................................................................................................................................... 1-5
Coin Dispenser .................................................................................................................................................. 1-5
Coin or Bill Return Button .................................................................................................................................... 1-6
Hoppers ............................................................................................................................................................. 1-6
Hopper Capacities ............................................................................................................................................. 1-7
Machine Capacities (Bill Stacker, Coin Box) ........................................................................................................ 1-7
Temporarily Out of Service Lamp ........................................................................................................................ 1-8
Power Control Center .......................................................................................................................................... 1-8
Dollars Accepted Counter ................................................................................................................................ 1-8
EMIFilter ......................................................................................................................................................... 1-9
Power Supply ................................................................................................................................................. 1-9
Test Switches ................................................................................................................................................. 1-9
Power Control Relay ....................................................................................................................................... 1-9
ComputerControlCenter ..................................................................................................................................... 1-9
Status Display .............................................................................................................................................. 1-10
Service and Control Switches ........................................................................................................................ 1-10
Denominations Accepted ................................................................................................................................. 1-11
SECTION 2 — INSTALLATION AND PROGRAMMING
Installation .......................................................................................................................................................... 2-1
Wall Mounting .................................................................................................................................................... 2-1
Change Payout Programming ........................................................................................................................... 2-3
Loading the Hoppers .......................................................................................................................................... 2-5
Unloading the Hoppers ...................................................................................................................................... 2-5
Operational Information .................................................................................................................................... 2-6
Setting Up the BC-3500 ....................................................................................................................................... 2-7
Quick Setup for a BC-3500 Dispensing Quarters Only ........................................................................................ 2-7
Normal Setup ..................................................................................................................................................... 2-8
KeyInformation ................................................................................................................................................... 2-8
Turning the Power On ......................................................................................................................................... 2-8
Switching to the PROGRAMMING Mode ........................................................................................................... 2-9
If No Access Code Has Been Established ...................................................................................................... 2-9
If an Access Code Has Been Established ..................................................................................................... 2-10
To Program a Different Access Code ............................................................................................................. 2-10
Self-Diagnostics ................................................................................................................................................ 2-15
Diagnostic Check ............................................................................................................................................. 2-15
Fault Message Check ...................................................................................................................................... 2-15
Status Messages ............................................................................................................................................. 2-15
Non-Shutdown Faults .................................................................................................................................... 2-15
Bill Acceptance Messages ............................................................................................................................ 2-15

Table of Contents
25238801 v
Transport Self-Clear Check .............................................................................................................................. 2-15
Acceptance Check ............................................................................................................................................ 2-16
Dispensing Tokens ............................................................................................................................................ 2-17
TokenControl ................................................................................................................................................... 2-18
Fast-Feed Shutdown ........................................................................................................................................ 2-18
Accessing the Fast-Feed Menu ......................................................................................................................... 2-19
Navigating the Fast-Feed Menu ........................................................................................................................ 2-19
Anti-Pullback System ....................................................................................................................................... 2-20
Accessing the Anti-Pullback Menu.................................................................................................................. 2-21
Navigating the Anti-Pullback Menu ................................................................................................................. 2-21
Miscellaneous ................................................................................................................................................... 2-21
SECTION 3 — ROUTINE SERVICE
Introduction ......................................................................................................................................................... 3-1
Removing a Jammed Bill from the Bill Acceptor ............................................................................................ 3-1
Bill Jamming Check List .................................................................................................................................... 3-1
Filling and Emptying the BC-3500 ..................................................................................................................... 3-2
Filling the Changer ............................................................................................................................................ 3-2
Emptying the Changer ....................................................................................................................................... 3-3
Coin Inlet Cleaning Procedure .......................................................................................................................... 3-3
Cleaning the Hopper Coin Path ........................................................................................................................ 3-4
Change Bucket Lubrication ............................................................................................................................... 3-6
Test Procedures .................................................................................................................................................. 3-6
Checking a Bucket Solenoid ................................................................................................................................ 3-6
Transport Motor Speed Check ............................................................................................................................ 3-6
Testing BC-3500 Transport Photocells ................................................................................................................. 3-7
VI - Transport Inlet ........................................................................................................................................... 3-7
VF - Flipper Cell ............................................................................................................................................... 3-7
VT - Transmissive Cell ..................................................................................................................................... 3-7
VR - Reflective Cell ......................................................................................................................................... 3-7
Coin Counting Phototransistor (Detector) Check ................................................................................................... 3-8
Adjustments ......................................................................................................................................................... 3-9
Bill and Coin Return Switch Assembly ................................................................................................................ 3-9
Coin Inlet to Top Door Clearance ..................................................................................................................... 3-9
Bill Return Switch Adjustment ......................................................................................................................... 3-10
Hopper Chain Adjustment ................................................................................................................................. 3-10
Adjsuting the Bill Acceptor Rails ......................................................................................................................... 3-12
Adjusting the Bill Transport to Stacker Alignment ................................................................................................. 3-13
BillStacker ........................................................................................................................................................ 3-13
Home Switch Adjustment ............................................................................................................................... 3-13
Adjusting the Pusher Plate ................................................................................................................................ 3-14
Adjusting the Upper Bill Box .............................................................................................................................. 3-15
Bill Stop Flipper Check ...................................................................................................................................... 3-16
Adjusting the Bill Stop Flipper ............................................................................................................................ 3-17
Installing a New or Replacement Bill Stacker ..................................................................................................... 3-17
TimingBeltTension ........................................................................................................................................... 3-20
SECTION 2 — INSTALLATION & PROGRAMMING (Continued)

Table of Contents
vi 25238801
SECTION 4 — TROUBLESHOOTING
Introduction ......................................................................................................................................................... 4-1
Power Up Diagnostics ........................................................................................................................................ 4-1
Sequence Descriptions ....................................................................................................................................... 4-2
Machine Status .................................................................................................................................................. 4-2
Standby Mode ................................................................................................................................................... 4-2
Accept, Payout, and Replenish Modes ............................................................................................................... 4-3
Reject Mode ....................................................................................................................................................... 4-3
Out of Service Mode ........................................................................................................................................... 4-3
Index to Error Messages and Troubleshooting Charts .................................................................................... 4-4
Validation Rejects .............................................................................................................................................. 4-6
Cell Sequence Rejects ........................................................................................................................................ 4-6
Bill Parameter Rejects ..................................................................................................................................... 4-16
TransportErrors ................................................................................................................................................ 4-20
Clearing Errors .................................................................................................................................................. 4-20
MachineErrors ................................................................................................................................................. 4-22
ClearingMachine Errors .................................................................................................................................... 4-22
Changer Errors (Non-Shutdown) ....................................................................................................................... 4-22
Coin Switch Errors ......................................................................................................................................... 4-26
Bill Changer Errors (Shutdown) ....................................................................................................................... 4-29
Coin Detector Errors While in the Standby Mode ............................................................................................... 4-29
MC Dispense Mode ........................................................................................................................................... 4-47
Detailed Control Computer Board Operation ................................................................................................. 4-64
ControlComputer .............................................................................................................................................. 4-64
ResetCircuit .................................................................................................................................................. 4-64
I/O Ports ....................................................................................................................................................... 4-65
Digital Display Driver ........................................................................................................................................ 4-65
Output Circuits .................................................................................................................................................. 4-66
TransportMotor Control .................................................................................................................................. 4-66
Hopper Motor Control ..................................................................................................................................... 4-66
LED Drive ..................................................................................................................................................... 4-66
Out of Service Lamp ..................................................................................................................................... 4-67
Stacker Drive ................................................................................................................................................. 4-67
DollarCounter ............................................................................................................................................... 4-67
Bucket Drive .................................................................................................................................................. 4-67
StackerSolenoid ............................................................................................................................................ 4-67
Coin Lockout ................................................................................................................................................. 4-67
InputCircuits ..................................................................................................................................................... 4-67
Power Supply Circuit Board .............................................................................................................................. 4-75
Computer Control Board ................................................................................................................................... 4-94
Bill Stacker Driver Circuit Board .........................................................................................................................4-103
Coin Switch Circuit Board ................................................................................................................................. 4-105
SECTION 5 — ADDITIONAL INFORMATION
Harness Color Coding ........................................................................................................................................ 5-1

Table of Contents
25238801 vii
SECTION 6 — PARTS CATALOG
BC-3500 Code Sheet ........................................................................................................................................... 6-2
Introduction ......................................................................................................................................................... 6-3
Catalog Description ............................................................................................................................................ 6-3
Parts List Description .......................................................................................................................................... 6-3
Ordering Replacement Parts ............................................................................................................................... 6-3
Parts Catalog ...................................................................................................................................................... 6-5
FREQUENTLY USED FIGURES AND TABLES
Coin
Acceptor Options (Table 1-1) .............................................................................................................................. 1-4
Dispenser (Figure 1-5) ........................................................................................................................................ 1-5
Computer Control Center (CCC) (Figure 1-9) .......................................................................................................... 1-9
Diagrams
Block Schematic Diagram (Figure 4-1) ............................................................................................................... 4-69
Coin Switch
Schematic (Figure 4-7) ................................................................................................................................. 4-104
Circuit Board Layout (Figure 4-8) .................................................................................................................. 4-105
Computer Control Board (CCC) (Figure 4-5) ..................................................................................................... 4-87
Driver Circuit Board Schematic (Figure 4-6) .......................................................................................................4-102
Power Supply (Figure 4-2) ............................................................................................................................... 4-71
Escrow Bucket Capacities (Table 2-1) ................................................................................................................... 2-3
Hopper
Chain Adjustment (Figure 3-9) .......................................................................................................................... 3-11
Value Codes (Table 2-3) .................................................................................................................................. 2-12
Machine Capabilities (Table 1-2) ........................................................................................................................... 1-7
Money
Accepted (Table 2-4) ........................................................................................................................................ 2-12
Combinations Which Are Not Allowed (Table 2-2) ............................................................................................... 2-4
Power Control Center (Figure 1-8) .......................................................................................................................... 1-8
Transport
Check Points (Figure 3-1) ................................................................................................................................... 3-2
To Stacker Alignment (Figure 3-10B) ................................................................................................................. 3-13
View
Bottom (Figure 1-3) .......................................................................................................................................... 1-3
Top (Figure 1-2) .............................................................................................................................................. 1-2

viii 25238801
Figure 1-1. BC-3500 Major Components

INTRODUCTION
The Rowe BC-3500 Bill and Coin Changer is our top-of-the-line money changer that uses computer and money
changertechnologywhichcombinesRowequalityandreliabilitywithmaximumflexibilityandeaseofinstallationand
service.
TheBC-3500 accepts and dispenses change for combinations of quarters, half-dollars,and dollar coinsas well as
1,2,5,10,and20dollarbillsofUnitedStatescurrency. Denominationscanbeprogrammedtobeacceptedinmany
combinations, as can the choice of coins paid out.
•Ahighsecuritycabinetprovidestheftprotection.
•AmicrocomputerintheComputerControlCenter(CCC)selectivelydiscriminatesbetweendenominations,
providesprotectionagainstbogusbills,andcontrolsthechangedispensingfunctions.
•Plug-incircuitsandassembliesare featured for fast field substitution.
•Coincombinationsand acceptable denomination programmingiseasily changed using theFUNCTION,UP,
DOWN, VALUE, and HOPPER buttons on the computer control center.
•Removablecoin hoppers permitrapid bulk loading of coins.
•During setup, a special payout check feature ensures that the payout amount selected matches the
denominationaccepted, unless tokensare being dispensed.
Refer to Figure 1-1 for the locations of the major BC-3500 components.
GENERAL OPERATION
Theentire validation andpayoutsequenceiscontrolled byamicrocomputertoensure themaximumsecurityagainst
bogus currency and jackpotting. Refer to the Detailed Computer Board Operation in Section 4 for a complete
explanationof how the machineworks.
Changing a Bill
Insertingadollarbillinthetransportstartsa motor which movies the bill along the acceptor track. While inmotion,
thebillis examined todeterminewhetherornotitis valid. (During thistime,themessage“VALIDATING”will appear
onthe computer’s display.)
Ifthebill is valid, avendsignalistransmittedtothe dispenser and thebilldropsintothebillstackerwhere it is stacked
flatagainstothervalidbills. Atthis time, the message “PAY$1”(forexample)fora$1billwillappearonthe display.
The one dollar change bucket opens, and the dollar’s worth of change drops into the coin cup.
Section 1: System Description
25238801 1-1

BC-3500 Bill and Coin Changer
1-2 25238801
Thecoin hoppermotorsthenoperate,loading thecorrectnumberofcoins fromtheleft,center,and rightcoinhoppers
into the change bucket for the next payout.
Ifthe bill is not valid, the bill transport motor reverses, returning the bill to the customer.
Changing Coins
Quarters,half-dollars,anddollarcoinspass through the coin acceptor if the changer issoequipped. Solid-statecoin
sensors start the payout cycle for these coins.
FUNCTIONAL DESCRIPTION
This functional description can be used to gain an overall understanding of the BC-3500 and its operation.
Bill Transport
The bill transport (see Figures 1-2 and 1-3) receives a bill as it is inserted by the customer. The bill is transported
throughthetransporteron a belt system, carefully examinedand,if the bill is determined tobevalid,is delivered to
thebill stacker.
Ifthebillfailsany of the validation tests, the transport reverses andreturnsthebilltothecustomer. Thebillwillhang
in the transport inlet for a period of three seconds during which time the control computer will display a message
explainingthe cause for the rejection. If the billis not removed during this these threeseconds, the computer will
display “PURGING ACCEPTOR” and a self-purging routine will begin. If the bill is removed in the three-second
period, the cause of the rejection will remain on the display for 30 seconds.
Figure 1-2. Bill Transport (Top View)

Section 1: System Description
25238801 1-3
Dual Bill Stacker
The dual bill stacker in Figure 1-4 has the capability
ofstackingbillsin twoseparatebillboxes. Thisfeature
allowsthebillchangertoalternatebetween thetwobill
boxes or to separate bills by denomination. This
function is controlled by the CCC, which activates a
solenoid-drivenlever in the stacker. Whenthislever
is in its rest position, it acts as a stop to position the
falling bill in line with the upper bill box. When
energized,this lever drops out of the way and allows
thebill to fall to the lower bill box position. Once the
bill is positioned properly, a signal from the CCC
activates a triac drive circuit in the stacker. As the
stacker leaves home position, a single cam switch
closesandperformstwo functions:
Figure 1-3. Bill Transport (Bottom View)
Figure 1-4. Dual Bill Stacker
Cam
Switc
h

BC-3500 Bill and Coin Changer
1-4 25238801
•It holds the triac drive circuit ON and also activates the stacker monitor line to the CCC.
•Whenthestacker completes its cycle, thecamswitchopens, stopping the stacker motoranddeactivating the
monitor line to signal the CCC that it is ready for the next cycle.
Coin Acceptor
Thecoin acceptor checksthe coins forwhich it wasdesigned to determinetheir validity. Each coin is checked for
thickness,diameter, weight, and metallic content. If the coinis deformed orinvalid, it is directedthrough the coin
acceptorto the coin return cup. Genuine coins are directed through the coinacceptor and actuate either of the two
solid-state coin switches located on the rear bottom of the slug rejector frame.
Jammed coins or slugs are cleared from the coin acceptor by a wiper arm on the coin acceptor, which is actuated
bytheCOIN orBILL RETURN button. Thecoininletandchutedeterscheatingandjamming. Thecoininletandchute
can be opened for easy clean out by removing the lower thumbscrew and rotating the coin track up. Various coin
acceptors are available as order options. Use Table 1-1 that follows as a guide:
NOTE:
Accepting any combination of coins may reduce the number of bill combinations that can
be accepted. (See Section 2 for details.)
Coin
Acceptor
-------
Mechanical
40861402
Mechanical
40861404
Mechanical
40861405
ElectronicNRI
27064002
ElectronicMars
27063802
Bracket &
Harness
-------
35026111
35026111
35026111
35028211,
30984404, and
27065301
35028216 and
30984404
Coin
Accepted
None
25¢
Imonex
$1
Imonex
25¢/$1
Imonex
25¢/$1
25¢/$1
Instruction
Panel
25081202
25081201
25061603
25061602
25061602 and
25061603
25061602 and
25061603
Coin Block
27027204
27027201
(Down position)
27027201
(Up position)
27027201
(Up position)
27027201
(Up position)
27027201
(Down position)
Table 1-1. Coin Acceptor Options

Section 1: System Description
25238801 1-5
Solid-State Coin Switches
As a coin passes through a slot in the coin switch assembly with any mechanical coin acceptor, it momentarily
interrupts an infrared light beam, causing a solid-state optical detector to send an electric pulse to the CCC. The
durationofthispulseisthencheckedbythecomputertodetermineitsvalidity. Valid coins will initiate the dispense
cycle. AseparateinfraredLEDandopticalsensor and photo-transistor pair is provided for each ofthetwopossible
coindenominationsaccepted.
Coin Dispenser
Thecoin dispenser (see Figure 1-5)contains the necessary components to handle the coins. The escrow buckets,
thesolenoidassemblies, thechutefromthebucketto the channelmountedonthepower control center,andtheupper
coin chute from the coin detectors to the buckets are located on this assembly.
Thethree coin detectors, each consisting of an LEDand a photo-transistor, detect thecoins as they exit from their
respective hoppers and fall into the upper coin chute.
The upper coin chute directs the change to the escrow buckets.
The drive for the hoppers consists of three AC motors, which are also on the dispenser. These motors, as well as
the solenoids which open the bottom door of the escrow buckets, are controlled by signals from the CCC.
You can access the rear of the dispenser assembly by removing the two screws in the upper corners, grasping the
dispenser at the arrow, and tilting the entire assembly forward on its lower pivots.
When you replace the dispenser, be sure that you tighten down the two top screws securely. If these screws are
not tightened down, the entire dispenser assembly may tilt forward when the hoppers are unloaded or removed.
Figure 1-5. Coin Dispenser (Rear View)

BC-3500 Bill and Coin Changer
1-6 25238801
Coin or Bill Return Button
When the COIN or BILL RETURN button (see Figure 1-6) is depressed, a switch closes and sends a signal to the
CCC. Thecoin lockout coil in thecoin acceptor is releasedand the transport motorrotates in the reverse direction.
Ifthebillrejectbuttonispressed(ON)formorethan10seconds,the transport will turn OFF automatically to prevent
excesswearandoverheating and the message“CK BILLRETRN SW”willbedisplayed and the switch willbeignored
untilthe FUNCTION button ispressed.
Figure 1-6. Bill Return Switch
Hoppers
The bill changer contains three coin hoppers (see Figure 1-7) which mount on the front surface of the dispenser
assembly and pivot forward from the bottom for loading, unloading, and removal (see Table 1-2 for required
hopper types and capacities).
The hopper transports coins to the detectors and coin chutes by means of a chain conveyor, which is driven from
below by a sprocket. The chain follows a serpentine path, so that excess coins fall back into the hopper ensuring
only one coin per pin enters the coin counting area.
Thechain picks up coins from the bottom of the hopper and carries them up to thetop, where they fall through the
upperchain guideringandinterrupta lightbeamtoa photodetector,whichismountedon thedispenser. Therequired
numberofcoinsfor a desired change combination arecountedinthis manner as the coins thenfallthrougha closed
chute to the escrow bucket.
Anagitator,which is mounted onthe drive shaft ofeachhopper, agitates the coinload to minimize coin jamsin the
hopperand ensure efficient coin pick up.
Toreducejams andminimizetheneedfor cleaning, thehoppersintheBC-3500 also haveTeflon-coatedcointracks.
Bill Return
Switch
Coin or Bill
Return Butto
n

Section 1: System Description
25238801 1-7
HOPPER CAPACITIES
Hopper Popular Coin Capacities
65027608 (High-Capacity) Dimes - 8,000
Small Coin Nickels - 4,000
.705 to .955 inch diameter Quarters - 3,400
65027609 (High-Capacity) Quarters - 3,200
Large Coin/Token Dollars - 2,200
.937 to 1.125 inch diameter .984 inch Tokens - 3,000
MACHINE CAPACITIES
Bill Stacker Separate Mode - 1000 bills in the upper bill box plus 1000 bills in the
lower bill box - however, since it is unlikely that the machine will
take in the same number of bills in both bill boxes, the capacity
may be limited to something less (the stacker is filled when either
bill box reaches 1000 bills).
Alternate Mode - 1000 bills in the upper bill box plus 1000 bills in the
lower. Bills are not separated, in order to fill both boxes to
maximum capacity.
Coin Box 3500 Quarters
NOTE: For escrow bucket capacities, see Table 2-1.
NOTE:
The hoppers do not have an “Empty Sensor”. Empty hoppers are indicated by a failure
to count the required number of coins in a specified period of time (approximately three
minutes), however, if the changer shuts down frequently with an error relating to empty
hoppers when they are not, then the “serpentine coin path” should be cleaned as shown
in Section 3.
Figure 1-7. High-Capacity Coin
Hopper
R
HI-CAPACITY
COIN HOPPER