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MEITRC Series Coin Changers
OPERATION A ND SERVICE GUID E
TRC 6000/6010
TRC 65 10
TRC 65 12
TRC 68 00
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General Informat ion
Table of Content s
Overview .........................................
Product Summary ..........................
Specifications .................................
2
2
2
Unpacking the Changer ................. 3
Warranty Information ....................
Installation ......................................
4
4
Checkli st .......................................... 5
Changer Operation
Option Switches ............................. 6
Interf ace Descrip tion ......................
Coin Acceptance .............................
Coin Separation ..............................
7
11
Coin Payou t / Coin Return ..............
Change Making ...............................
Manual Dispensing of Coin ...........
Solenoid Operation ........................
Maintenance
Tuning ..............................................
Preparation (tuning ) .......................
Tuning Coin Sets ............................
Routine Maintenance .....................Cleaning
..........................................
Clearing Coin Jam s ........................
Repair Policy
Owner's Responsibility ..................
Mars Electronics' Responsib ilit y ...
Serv ice .............................................
12
12
12
13
13
13
13
14
1515
16
16
16
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Overview
The TRC Operation and Service Guidecontains impo rtant
information oninstalling, operating and m aintaining MEITRC Single
Price, Micromech and MDBCoin Changers.
To obtain the best performance from you rcoin changer, read
through this manualbefore installing and using the unit.These coin
changers are designed fo r usein the following:
TRC-6000 - 110VDC Microm ech Vending
Machine Controller (VMC) applications. 115 Volts DC + 20 Volts
60 Hz 0.10Amp continuous 1.2 Amp peak (whendispensing coins)
TRC-6010 - 24VDC Microm ech VendingMachine Controller (VMC)
applications.(12 pins) 24 Volts DC + 20 Volt s 60 Hz0.10 Amp con
tinuous 1.2 Amp peak(when dispensing coins)
TRC-6010XV - 24VDC MicromechVending Machine Controller
(VMC)applications. (15 pins) 24 Volts DC + 20
Volts 60 Hz 0.10 Am p continuous 1.2Amp peak (when dispensing
coins)
TRC-651x - 34VDC MDB applications. 34 Volts DC +20 Volt s 60 Hz
1.0 Am pcontinuous 3.2 Amp peak (whendispensing coins)
TRC-6800 - Single Price Vendors. 115Volts AC +20 Volt s 60 Hz
0.10 Am pcontinuous 1.2 Amp peak (whendispensing coins)
Product Summ ary
Electronic Coin RecognitionThe TRC coin changer m axim izes
theacceptance of valid coins, and m inim izesacceptance of slugs.
As coins are inserted,the TRC coin changer adjusts the cointracking
parameters to maintain theoptimal operating range.
General Information
To ensure continued peak performance after module
replacement, the changer features a special tuning mode(see
Tuning, page 13).
Figure 1: TRC Coin Changer
Physical CharacteristicsHeight: 370 mm (14.67") base to top of
coin return leverWidth: 136 mm (5.35")Depth: 76 mm (2.99")Weight:
2.6 kg (5 lbs. 12 ozs.) in shipping container
Acceptance of U.S. coinsThe TRC coin changers (Figure 1) are
factory-tuned toaccept U.S. nickels, dimes, quarters, and dollar
coins,and can be re-tuned in the field to accept Canadian
coins(with the exception of the $2 coin).
Acceptance of nickels, dimes and quarters w ithdollar coin
accept/reject toggle sw itchThe changer is preset to accept U.S.
dollar coins.
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High or low quarter level
The level of quarter storage in the coin tubeis swit
ch-selectable (see pages 6,7).
Fewest Coin PayoutCoins of the highest denomination areselected
for change, enabling the changerto pay out the coins.
Tw o M oving Parts for CoinAcceptance and SeparationValid coins
enter the changer through asolenoid-operated Accept Gate. If
thecoin tube for the accepted coin is full, the
coin goes directly to the cash box. If thecoin tube is not full,
a solenoid-operatedSeparator Gate diverts the coin to the tube.
Note: Dollar coins, if accepted, are alwaysdirected to the cash
box.
EscrowSingle price applications -
dependent upon vend price.
Microm ech and MDB application -
dependent on the VMC. Refer to thevending m achine manual for
escrow
options, if applicable.
Price SettingSingle Price appli cations - located on thecontrol
board of the changer.
Microm ech and M DB application -dependent on the VM C. Refer to
thevending m achine manual for price settingprocedure.
Vend Price RangeSingle price applications - 5 to $10.00(all
switches in an ON condition).
Microm ech and M DB application -dependent on the VM C.
Individual Coin Tube OverflowElectronic sensors moni tor the
full/emptystatus of the coin tubes. Each tube ismoni tored
individually to maximi ze coinsavailable for change.
General Information
Table 1:Coin Tube Overflow
Easy Cleaning and M aintenanceNo special tools are required for
cleaning, or norm alfield main tenance of the TRC coin changer.
Refer topage: 15.
Specifications
UL ApprovalThe TRC-60X0 Coin Changer i s UL li sted under fil
enum ber E 57869.
CSA ApprovalThe TRC-60X0C Coin Changer is CSA listed under
filenumber LR 47838.
Unpacking the Changer
Unpack the changer and im mediately inspect it for anypossible
shipping damage.
If the unit is dam aged:1) Return it to its original carton,
along w ith packing
materials.2) Notify the delivering carrier of damages and
request
imm ediate inspection.3) Send a letter of intent to file a claim
to the delivering
carrier w ithin 72 hours from the tim e of delivery.4) Send a
copy of the letter to the shipper.5) Retain original carton and
packing materials for
future use in shipping or transporting the changer.
Note:Onlythe consignee (the person or companyreceiving the
changer) can file a claim against the carrierfor concealed
damages.
5Tube
10Tube
25Tube
Low 25OptionSwitchSet toOFFPosition
Low 25OptionSwitchSet toONPosition
LowSensorLevel
HighSensorLevel
6-8 7-8 6-9 6-9
66-67 98-99 68-69 6-9
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Warranty
Information
Once the unit has been inspected:1) Record the serial and model
num bers
from the label located on the side of thechanger.
2) Refer to these numbers whenever youcall your MEI dealer for
inform ation orservice.
The first three digits of the serial num bercontain the
manufacturing date code.This code indicates the beginning of
the
warranty period.
For coin changers manufactured afterOctober 1989, the first two
digits indicatethe week of manufacture, the third digitindicates
the year of manufacture.
Example:A changer w ith serial num ber 05910000876was
manufactured in February of 1999.
For coin changers manufactured beforeNovember 1989, the first
digit indicates theyear of manufacture; the next two di gits
indicate the month of manufacture.
Example:A changer w ith serial number 910-02705was manufactured
in October of 1989.
Installation
To install the TRC coin changer in avending m achine, follow the
step-by-stepinstructions provided below. For m oredetailed
instructions, refer to theInstallation Guide shipped with the
changer.
1) Lower the Acceptor Gate Assembly bydepressing both spring
clips (Figure 2).
2) Tilt the Acceptor forward on the hinge.
General Information
3) Set the option switches using a retractable ballpoint
pen or small screwdr iver. Do not use a graphitepencil
point.
Note: The option switches are located on either theControl
Board/Backplate Assembly or on the back of theFlight Deck (TRC-6512
only).
4) Set the vend prices on the changer (TRC-6800 only)or vending
m achine.
Refer to vending machine manual for the exact
procedure for setting of the vend price(s).
Figure 2: Lowering the Acceptor Assembly
5) Install the coin changer in the vending machine.
6) Adjust the vendor mounting screws to stand off aminim um of
1/8".
7) Align the coin changer access holes in the changerwith the
moun ting screws. Tighten all screws tosecure the coin changer in p
lace. The coin changermust be vertical within +/ - 3.
8) Apply power to the coin changer by connecting thecoin changer
pow er plug to the power source.
9) Position or clamp the Main Harness so that it clearsthe Coin
Cup and Coin Return Lever.
10) Press the Acceptor/Gate Assembly back into thehousing until
the spring clips engage.
11) Fill the coin tubes to the desired levels by inserting acoin
or coins into the loading slots located on thecoin tube front.
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Figure 3: Manually Filling the Coin Tubes
Or
Manually deposit coins through the top ofthe changer. Refer to
the vend ing m achinemanual to see if this second option
isavailable. (Refer to Table 1 for m inim umcoin tube levels on
page 3.)
Checklist
Check that...
The coin changer is flush against thevendor wall.
The coin insert chute is aligned abovethe center of the coin
cup.
The coin changer reject and cash boxchutes are aligned with the
vendorreject and cash box chutes.
The vendor coin return lever shouldfully depress coin changer
return lever
but not touch when released.
General Informat ion / Changer Operation
...Then, to assure that the Coin Changer operates
correctly...
Test each dispense line through the service mode ofthe VMC in
sequence for 1 to 2 seconds. Dispenseswitches are located on coin
changer modelsTRC-6800, TRC-6510 or TRC-6512. Refer to thevending m
achine manual for dispense operation
using service mode (models TRC-6000 or
TRC-6010XV).
Make sure a vend pr ice is set. Do a test vend byinserting more
than the vend price. Make sure thatproper change is paid back and
that there aresufficient coins in the coin tubes to m ake
proper
change. Replace dispensed coins in tubes. Refer tovending m
achine manual for operation of setpricemode.
Check escrow return by inserting coins of variousdenominations
to w ithin 5 or more of vend pri ce.Request escrow return by
depressing the returnbutton.
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Changer Operation
Figure 4: TRC-60X0, TRC-6510 OptionSwitch Location
Figure 5: TRC-6512 Option Swi tch Location
Table 3:TRC6510 Option Switches
Sw it ch Set ting Funct ion
1 (US/Canadianacceptance)
2 (Quarter tubelevel)
3 (Dollar coinacceptance)
4 (Acceptancestatus)
ON
ON
US and Canadian coinacceptance
OFF US coi n accept ance
OFF Stores 69 quar ters for change
Stores 6 quarters for change
ON
OFF Disables dollar coin acceptance
Enables dollar coin acceptance- if programmed
ON
OFF M axim um security
Maximu m acceptance
Table 4:TRC6512 Option Switches
Sw it ch Set ting Funct ion
1 (Quarter tubelevel)
ON Stores 4 to 6 quarters forchange (LOW)
OFF Stores 67 to 74 quar ters forchange (HIGH)
2 (Dollar coinacceptance)
3 (Acceptancestatus)
ON
OFF Rejects $ coins
Accepts $ coins
ON
OFF M ax im um accept ance
Maximum security
6
Option Sw itches
Table 2:TRC60X0 Option Swi tches
Sw it ch Set ting Funct ion
1 (US/Canadianacceptance
2 (Quarter tubelevel)
3 (Dollar coinacceptance)
4 (Dollar coin
acceptance -25 coin tubedependency)
ON
ON
Accepts US and Canadiancoins - if programmed
OFF Accept s U S coi ns on ly
OFF Stores 69 quar ters for change
Stores 6 quarters for change
ON
OFF Disables dollar coin acceptance
Enables dollar coin acceptance- if programmed
ON
OFF Accept s d ol lar coi n withquarters in 25 tube
Accepts dollar coins without
quarters in 25 tube
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Changer Operation
Table 5:TRC6800 Option Switches
Sw it ch Set ting Funct ion
Figure 6: TRC-6800 Option SwitchLocation
Note: Escrow m ay not be paid if the VM C is set for No
Escrow Return. Refer to Vending Machine Manual fo roperation, if
applicable.
Single Price Interface
SINGLE PRICE INTERFACE ESCROW TO VENDFor an escrow t o vend
(standard) operation, a vend relayis requiredin the vending
machine. In the Escrow toVend (ETV) coin changer accumulated credit
is comparedto the price set in the control logic of the coin
changer ascoins are inserted. If adequate credit exists and
ifrequired change is available, the control logic activatesthe vend
relay in the coin changer. The coin changer' svend relay then
connects the AC hot line to the vendrelay in the machine. The
latching of this relay opens theblocker contacts and enables the
select sw itches.Activation of a select switch causes the vend
motor toturn. The vend motor mechanically activates a carrierswitch
wh ich holds power on the motor and deactivatesthe vend relay in
the machine. The deactivation of thevend relay cancels credit and
init iates the change-making cycle, if required.
SINGLE PRICE INTERFACE ESCROW TO SELECT(for TRC-680 0 changers w
ith CIGARETTESwitches)For an escrow to select (cigarette)
operation, a vendrelay is not required; how ever, an external sense
circuit
is needed. This is normally supplied by the activation ofa
select switch. In the Escrow to Select (ETS) changer,accumulated
credit is compared to the price set in thecontrol logic of the
changer as coins are inserted.The activation o f a select switch
causes a sense currentto flow in the coin changer. If adequate
credit exists andif required change is available, the control logic
activatesthe vend relay to connect the AC hot line to the
selectswitch. This causes the vend motor to turn. The vendmoto r m
echanically activates a carrier switch w hichholds pow er on the mo
tor and opens the blockercontacts. The opening of the blocker
contacts is thensensed by the coin changer. The coin changer
thendeactivates the vend relay, cancels credit and in itiates
the change-making cycle, if required.
1 (Dollar coinacceptance)
ON
OFF Rejects do ll ar coi ns
Accepts dollar coins
2 (US/Canadianacceptance)
ON
OFF A ccept s U S coi ns on ly
Accepts US andCanadian coins
3 (Quarter tub elevel)
ON
OFF
Stores 6 quarters forchangeStores 69 quarters forchange
4 (Bill acceptorstatus)
ON
OFF
AC/High level pulse billacceptor interface 115VAC input s,
9-pinconnector & power pluginterconnectLow level pulse
billacceptor interface +5VDC, 9 & 18-pinconnectors
5 (Escrow) ON
OFF
No excrow returnallowed (no moniesreturned and credit isheld
until a vend iscompleted)Escrow return allowed(escrow m
odedependent on switch 6)
6 (Escrowcontrol)
ON
OFF
ETS (Escrow to Select)For cigarette venders orfour-price venders
(setto vend on one pri ceonly). Coin return canbe requested at any
tim eprior to making aselection, or if theselection is sold outETW
(Escrow to Vend)For standard singleprice venders. Coinreturn can be
requestedat any time prior toreaching v end price
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Changer Operation
Table 6:TRC6800 Power Plug Pins
PIN # Description
1 117/24 VAC (Hot)
2 117/24 VAC (Neutral)
3 Vend Relay - Norm ally Open - Price #1 (Hot)
4 N/C
5 Exact Change - Normally Open (Neutral)
6 Blocker (Hot)
7 Vend Relay - Normally Closed (Hot)
8 Escrow to Select Option - not u sed in theETV condition
Figure 7:TRC6800 Power Plug
Micromech Interface
The Micromech interface transmits data to the externalVM C via
its INTERRUPT and DATA lines. The controllerresponds to these
messages via its SEND line. Thesethree lines form the serial data
link between changerand contro ller. The VMC supplies power to
operate thechanger via its four pow er lines. In addition, the VM
Chas five control lines that authorize coin payout,enable/inhibi t
coin acceptance, and reset the changer toits standby condition .
Refer to Figure 8 for power plugpinout.
M icromech Electronics Operation Sequence
When a coin enters the mechanism, an "interrupt"signal is sent
on Pin #4 to inform the VMC that themechanism is ready to send
credit inform ation.
When the VM C receives this "interrupt" signal, itsignals the
mechanism via a "send" signal on Pin #3.This indicates to the
mechanism that the VM C isready to accept "data".
When the mechanism receives this "send" signal, ittransmi ts a
message on Pin #5 containing thefollowing data:
coin value - 5, 10, 25 or $1.00.
coin tube status - coin tube sensors are covered/notcovered.
coin direction - to coin tube or to cash box.
If a coin is rejected, or if there is a problem i n themechanism
, certain default messages are sent to theVM C on the "data" line.
They are as follows:
slug - coin entered bu t was not accepted (accept gatedid not
open).
no strobe- coin was accepted but did not actuate
strobe (could indicate jam or strobe issue) dollarcoins rejected
due to insufficient quarters in the cointube or sensor in the coin
tube.
power up - indicates coin changer was just reset orpowered
up.
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Changer Operation
Micromech Interface Special Features
Accept Enable - Whenever the VM C sends the"accept enable"
signal on Pin #6, the m echanismsends the "coin tube status"
message. This can beused while dispensing quarters to see when
thecoins uncover the lower sensor. At that time, thechanger can
dispense four m ore coins from thattube. It can also be used by the
VMC to determ ine ifthe mechanism is operating by sending the
"acceptenable" message every so often when no transactionis taking
place.
Reset (Pin #11) - this line enables the VMC to resetthe
microprocessor of the mechanism in the eventthere is a low pow er
condition on the 5 volt line.
When suffi cient credit has been
established in the VM C to enable a vend,the VM C performs the
changemaking logicand sends logic +5V signal(s) to operatethe
appropriate 5, 10 or 25 dispensersolenoids in the mechanism for
change(if needed).
Micromech Interface ExceptionsThe 15-pin M icrom ech interface
is aduplicate of the 12-pin Microm echinterface with two
exceptions:
Pin #14 enables dollar coin d ispense.Not all VM C manufacturers
utilize this
control line.
The 110VDC is referenced on pins 10and 12; 24VDC is referenced
on pins13 and 15.
Note: Some m anufacturers uti lize a 24VDCsystem exclusively. In
those applications,you m ay find that they will j ump pi ns 10 to13
and pins 12 to 15. This enhances theinstallation for either TRC6010
orTRC6010XV coin changers by using thesame socket.
Note: When the number of coinsintroduced exceeds the highest
priceprogrammed into the VM C, acceptancewi ll cease.
PIN # Description
1 5VDC (Positive)
2 5VDC (Return)
3 Send (OV active)
4 Interrupt (OV active)
5 Data (OV active)
6 Accept Enable (OV active)
7 Quarter Dispense (OV active)
8 Dime Dispense (OV active)
Table 7:Microm ech Interface PINS and Descript ions
9 Nickel Dispense (OV active)
10 110VDC or 24VDC
11 Reset Line (+5V active)
12 110VDC or 24VDC
13 24VDC (XV model only)
14 Unused on three tube mod el changers
15 24VDC (XV model only)
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Changer Operation
PIN # Description
1 34VDC (Supply )
2 34VDC (Return)
3 No Connection
4 Master Receive
5 Master Transmit
6 Communication Common
Figure 8:TRC60X0 Power Plug
Table 8:TRC6510/6512 Power Plug Pins andDescriptions
M ulti-Drop Bus Interface
M ulti Drop Bus (M DB) SpecificationsThe TRC-6510 and TRC-6512
are configured as peripheralsto a VM C along with the bill
validator, card reader, etc.They rely fully on the VM C for a
constant communicationthat occurs during either idle or operational
procedure.The two l ines that are utilized for th is process are:
TXdata line (Transmit Data) and RX data (Receive Data)lines. These
lines operate at a 9600 baud rate.
RX Data - enables the changer to accept coins,inform s the coin
changer that it is ready to receivedata; the changer determines
what change will bedispensed.
TX Data - inform s the microprocessor that a vendcycle has been
initiated, depending on whatdenomination has been accepted.
This communication enables or disables acceptanceand coin
dispensing during a transaction. The coinchanger simultaneously
comm unicates with the VM Cregarding the type of coin that has been
accepted andthe availability of change that may be required for
thenext transaction. The routing of the coin, either to thecash box
o r to coin tubes, is determined by the coinchanger. Figure 9 shows
the power plug of the TRC-6510or TRC-6512 coin changer.
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Figure 9:TRC6510/TRC6512 Power Plug
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Changer Operation
As the coins roll along the ramp, they pass two
electronic sensors embedded in the plastic behind thecoin path
and Acceptor lid (Figure 10). The recognitionsensors measure coin
diameter/metal content and cointhickness. These values, wh ich are
sent to the changer'smicrocomputer for analysis, determine w hether
the coinwill be accepted.
The microcomputer compares the information receivedabout the
inserted coin to the predetermined coinacceptance criteria stored
in memory. If a coin fallswithin the range of acceptable
specifications, it isaccepted. The microcomputer sends a signal to
theAccept Gate, opening the Accept Gate and routing thecoin to the
Separator section.
As the coin enters the Separator section, it passes theStrobe
Sensor. This electromagneti c coil signals themicrocomputer that a
coin has been accepted.The microcomputer then accumulates credit
equal to thevalue of the accepted coin, and closes the Accept Gate
inpreparation fo r the next inserted coin.
Coin RejectionCoins not meeting the acceptable specifications
arerejected. The Accept Gate remains closed, and therejected coin
rolls off the top of the gate, down a rampto the reject chute, and
drops into the coin return cup.
Changer Operation
General OperationWhen coins are inserted into the coinchanger,
they pass two electronic sensorsthat measure coin diameter, metal
contentand coin thickness. These measurementsare sent to the coin
changermicrocompu ter where they are comparedwith predetermined
coin acceptancecriteria.
If the coin does not m eet the acceptancecriteria, the Accept
Gate remains closedand the coin is rejected. If it fits the
criteria,
the coin is accepted. The Accept Gateopens to allow the coin
into the Separatorsection . As it enters, it passes the
StrobeSensor, which signals the m icrocomputerto accumulate
credit.
Each tim e a transaction occurs, themicrocomputer checks the
status of theupper coin tube sensors to see if the tubesare full.
If the tube corresponding to theaccepted coin i s full, the
Separator Gateremains open and the coin is sent to thecash box. If
the approp riate tube can acceptcoins, the Separator Gate closes
and the
coin is routed to that tube.
Once a vend pri ce has been reached, themicrocompu ter checks
the lower coin tubesensors for change requirements. Coins ofthe
highest denomination available areselected and the dispensers pay
out thechange.
Coin AcceptanceWhen coins are inserted into the vendingmachine,
they enter via the Coin Cup of theAcceptor/Gate Assembly. The coins
hit twosnubbers that absorb the im pact and allowthe coins to roll
smoothly down the coinramp.
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Changer Operation
Figure 10:Coin Paths
Coin Separation
Accepted coins are directed to the cointubes or cash box by the
Separator Gate.Each time a transaction occurs, themicrocompu ter
checks the upper coin tubesensors to determine whether or no t
thetubes require coins. The Separator Gate isdirected
accordingly.
If the appropriate coin tube is full (sensorcovered) or the coin
is not stored forchange, the Separator Gate remains open.This sends
the coin d irectly to the cash boxvia the cash box chute.
If the tube requires coins (sensor exposed)and the coin is
stored for change, thechanger m icrocomputer closes theSeparator
Gate. This directs the coin dow na path that contains windows
leading intothe coin tubes. As the coin reaches awindow of the
correct diameter, it falls intothat window's tube.
Coin Payout /Coin Return
Coin payout can result from a transaction - escrow
returnrequest, exact change condition, or change making froma
completed vend - or by m anually reducing theinventory levels in
the coin tubes. Coins selected arepaid out by the Dispenser
Assembly .
Whenever possible, escrow return is paid coin-for-coinfrom the
coin tubes. Escrow for coins that are not storedfor change is paid
utilizing the highest denominationcoins available in the coin
tubes.
In general, escrow return for dollar coins and bills is paidin
the highest denomination coins available from the
coin tubes. Payback is assured by the minimum cointube levels
required for dollar coin and bill acceptance.
Note: If No Escrow Return is selected, there is nominim um coin
tube requirement for the acceptance ofdollar coins or bills.
Consequently, full payback may notbe possible.
Change M aking
Change is paid out by the Dispenser Assembly
utilizingsolenoid-operated slides. Each time a transactionoccurs,
the changer microcomputer checks the status of
the lower coin tube sensors to see which coins areavailable for
change. Highest denomination coins arepaid back first. During a
transaction, nickels, dimes andquarters are paid out to the level
of the lower coin tubesensors. When used with a low level interface
to a billacceptor, the TRC coin changer w ill not allow
acceptanceof a dollar bill or coin if the lower dim e and
quartersensors are uncovered and more than seven nickelswou ld be
required for change.
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Changer Operation / M aintenance
Tuning
TRC coin changers are factory preset to m axim ize validcoin
acceptance. However, period ic adjustm ents may berequired to
correct differences that can occur when theAcceptor/Gate Assembly
and/or the ControlBoard/Backplate Assembly are replaced. (No
specialtest equipm ent is required for tuning adjustments.)
In the Tuning M ode:The coin changer is taught to recognize a
set of coins.As the coins are inserted through the Coin Cup, they
areplaced into eight different tuning locations - twolocations per
denomination [(nickel, dime, quarter, dollar,
Canadian and U.S.) Tokens on TRC-651x]. Two coins ofthe same
coinage m ay be used for acceptance.TheTRC-60x0orTRC-6800may also
be taught to accepta token in lieu of a coin.
Note: Dimensions and m etal content w ill affect thedegree of
success in using a token.
Depressing the Coin Return Lever during the tuningprocedure
clears that tuning location.
After tuning, the changer switches to a calibration m ode.This
mode serves as a fine-tuning function. Acceptance
wil l improve with the number of coins inserted.
Preparation - (In Vending Machine or Tester)If tuning is
required, perform these steps first:
1) Set one vend price to the highest programmableprice and
activate the door sw itch for m achine.
2) Turn the machine OFF.
3) Lower the Acceptor/Gate Assembly .
Manual Dispensing
of Coins
Operating the manual dispense switches /buttons reduces the
level of coins in thecoin tubes by operating the properdispenser
solenoid . Coins are dispensedat a rate of two per second. The VMC
ofthe vending m achine is responsible forsending the dispense
signal to theTRC60X0 or TRC-651X coin changers.Refer to the vending
m achine manual foroperation procedure for dispensing ofcoins from
changer.
Solenoid Operation
When a solenoid energ izes, the upwardmotion of its plunger
compresses a springand draws the solenoid lever, whi ch in
turnpushes a payout slide forward (Figure 11).This loads a coin for
payout. When thesolenoid de-energizes, the spring forcereturns the
plunger to its de-energizedstate, which returns the solenoid
lever,returning the payout slide, paying out acoin.
Figure 11:Solenoid Operation
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Maintenance
4) Set the changer option switches as follow s (if
applicable for your m odel coin changer):
ON U.S./ Canadian AcceptanceOFF High 25 SensorON $ Co in
AcceptanceON $ Coin Acceptance w/o 25
5) Short the set of tuning pins by touching bothsimultaneously
with the tip of a m etal screwdr iver/tuning plug; MEI P/N
208240001 PAK 5. (See Figure12 or Figure 13 on this page).
6) With the screwdriver/tuning plug still touching thetuning pi
ns, turn machine ON.
7) Remove the screwdriver/tuning plug when the"norm al" message
appears on the display of themachine.
8) Press the Acceptor/Gate Assembly back into positionuntil the
spring clips engage.
The changer is now in the tuning mode. Now you areready to
follow the Tuning Coin Sets.
Follow TUNING COIN SET listed below .
Tuning Coin Sets
Coin Set StatusInsert a US nickel RejectedInsert a Canadian
nickel Rejected (see Note 1)Insert a US dime RejectedInser t a
Canad ian dime Rejected (see Note 1)Insert a US quarter Rejected
(see Note 1)Insert a Canadian quarter Rejected (see Note 1)Inser t
a US dol lar co in Rejected (see Note 1)Insert a Canadian dollar
coin Rejected (see Notes 1 & 2)Insert first token (see Notes 2
& 3)Insert second token (see Notes 2 & 3)
Notes:
1) To skip the tuning of the coin depress the Coin
ReturnLever.
2) Nickel solenoid wi ll fi re once on TRC-6800, TRC-6510or
TRC-6512.
3) TRC651x using level 3 MDB appli cations recognizetoken
acceptance.
Figure 12:Shorting the Tuning PinsTRC60X0, TRC6510, TRC6800
Figure 13:Shorting the Tuning PinsTRC6512 Only
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Maintenance
To Clean the A cceptor and Coin Ramp:
1) Swing the Acceptor lid diagonally upward and to theright (see
Figure 14). Hold the lid firmly so that it doesnot snap back
down.
2) Wipe the exposed coin ramp and inner surface of thelid with a
damp cloth. For problem cleaning, dampenthe cloth with water and m
ild, non-abrasive soap.
Note: When teaching p roper use of a TRC-60X0C forCanadian cur
rency only, substitu te a pre-1981 Canadiannickel in the first step
and use a post-1981 nickel in thesecond step. All other m odels
should use the post-1981
nickel. It will not accept the Canadian $2 coin.
To Calibrate the Coin Changer:
Drop fifteen coins of each denominationinto the coin changer
follow ing the tuningorder.
To Tune a Changer for OneDenomination only:Depress the Coin
Return Lever after eachinsertion to move to the next
denominationcoin. Or insert a second coin of the samedenomination
rather than depressing theCoin Return Lever.
Routine M aintenance
Periodic routine maintenance improves theperformance and extends
the optim umworking l ife of the coin changer. It can alsoreduce
the need for m ore costly repair orreplacement m easures. Frequency
o froutine m aintenance will depend on theenvironment and the
number of vendingmachine transactions.
CleaningBefore cleaning, be sure to turn themachine OFF and
unplug the coin changer.The TRC coin changer should be cleaned
only with warm water and a mild detergentsolution.
CautionNever immerse the coin changer inwater.
Do NOT use solvents, steel w ool,scouring pads, or metal brushes
forcleaning.
Do NOT spray the coin changer withany types of lubricant.
Since all coins roll down a comm on coinramp, heavy use can
result in dirt bu ildup.
Figure 14:Cleaning the Acceptor Coin Ramp
To clean the Dispenser Slides:
1) Detach the Bottom Plate by removing the sevenPhillips head
screws - one screw on each side (A), onerecessed screw on the back
(B), and four screws on the
bottom of the changer (C) (see Figure 15).
2) Lift out the Bottom Plate and indiv idual slides.Clean them w
ith a mil d soap solution. Do not spray withany type of lubr
icant.
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M aintenance / Repair Policy
!!! ! WARNING !!!!
To avoid a possible shock hazard, use care whenperforming any
procedure that involves installing theControl Board/ Backplate
Assembly. Route the MainHarness and Dispenser Harness wires in such
a waythat they cannot be pinched between the Backplateand
Housing.
Note: Check changer acceptance whenever t heAcceptor/Gate Assemb
ly is replaced. If acceptance issatisfactory, calibrate the uni t
by inserting 15 coins ofeach denom ination. If acceptance is poor,
tune andcalibrate the unit foll owing the instructions on page
13.
OWNER'S RESPONSIBILITY
Upon request, owner m ust show proof o f purchasewhen submitti
ng equipment for service during thewarranty period. Owner will
assume all freight chargesfor shipm ent of equipm ent to an
authorized servicecenter while under w arranty, and to and from the
servicecenter when outside the warranty period. Owner isresponsible
for out-of-warranty repair expenses,chargeable at prevailing rates
set by authorized servicecenters or in effect at service faciliti
es. Complete writteninform ation must be supplied to the authorized
servicecenter for all items returned, including serial and
model
number, and a description of the malfunction.
M EI RESPONSIBILITY
During the warranty period, MEI will repair or replaceany parts
which f ail to function properly because ofdefects in m aterial or
workmanship. MEI shall not beliable for any consequential dam ages
as a result o fdefects in material or workmanship. Damage due
toelectrical overload, negl igence, accidents, misuse,abuse,
vandalism, or an act of God is not covered byMEI warranty. Any
alteration of the product aftermanufacture voids the warranty in
its entirety.The product to be repaired under w arranty must be
delivered to an authori zed service center. Repairs
orinstallation at the ow ner's location are not included inthe
warranty.
Once the slides are clean...
1) Set them on the Bottom Plate with thenumbered sides facing up
into the coinchanger.
2) Align the plunger tabs with the bolts ineach side and seat
the Bot tom Plate.
3) Insert opposite screws (C of Figure 15)first to ho ld the
slides in place.
4) Install the remaining screws.
Clearing Coin JamsIf coins jam in the cash box chute,
dislodgethem via the access holes at the rear of theDispenser
Assembly.
Figure 15:Clearing the Dispenser Slides
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Repair Policy
During the warranty period, M EI will
assume freight charges for return of theowner's equipment from
the closestauthor ized service center via UPS orcommon carrier.
SERVICE
For service information, contact MEI or anyMEI authorized
service center. Parts andlabor that are MEI responsibility w ill
beprovided without charge. Other service is atowner's expense. For
a parts manual,service information, or the name of theauthorized
service center nearest you, writeus at:
MEI1301 Wilson DriveWest Chester, PA 19380
TECHNICAL SERVICE:1-800-345-8172
CUSTOM ER SERVICE:1-800-345-8215
Check out our w eb site:www.meiglobal.com
NOTES:
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