Coinco MAG Series Operation manual

MAG
BILL ACCEPTOR
Operation and Service Manual

3
TABLE OF CONTENTS
Section 4: Maintenance
Disassembling the MAG ..................................... 12
Disassembling the Chassis .................................. 15
Disassembling the Lower Housing ...................... 17
MAG50 Cleaning Maintenance Proce ure ......... 19
Cleaning Salt Water Damage .............................. 20
Section 5: Troubleshooting
Intro uction ......................................................... 21
MAG Diagnostic Flash Co es ............................ 21
Troubleshooting Gui e ........................................ 22
Section 6: Parts List
Main Frame (MAG50B/52B/52BX) ................... 27
Main Frame (MAG50SA/52SA) ........................ 28
Chassis ................................................................ 29
Lower Housing Assembly ................................... 31
Logic Boar an Case Assembly ........................ 32
Interme iate Frame Assembly ............................. 33
Cashbox Assembly .............................................. 33
Harnesses ............................................................ 34
Section : General Information
Intro uction ........................................................... 4
Mo els .................................................................. 4
For Your Recor s ................................................. 4
Features ................................................................. 4
After Unpacking .................................................... 4
Main Logic Boar Assembly ................................ 5
Specifications ........................................................ 5
Dimensional Drawing ........................................... 6
Section 2: Installation
Option Switch Settings .......................................... 7
Installing the Bill Vali ator ................................... 7
Section 3: Operation
Bill Recognition .................................................... 8
Bill Vali ation ....................................................... 8
Bill Stacking an Cre it ........................................ 8
Bill Rejection ........................................................ 8
Component Explanation
Bill Transport an Stacking ........................... 8
Left an Right Alignment Sensors .................. 8
Center Optic Sensor ....................................... 8
Left an Right Optic Sensor ........................... 8
Magnetic Sensor ............................................. 8
Anti-Pullback Levers ...................................... 8
Stacker Home Sensor ..................................... 8
Enco er Sensor ............................................... 8
Component Explanation Drawing .................. 9
Interconnect Drawing (MAG50B/52B) .............. 10
Interconnect Drawing (MAG50SA/52SA) .......... 11

4
SECTION : GENERAL INFORMATION
INTRODUCTION
This manual contains information on installing, operating
an maintaining Coinco's MAG Series bill acceptors.
This manual is inten e for owners, route operators an
shop-level technicians as a primary source of informa-
tion. Taking time to rea this manual an becoming
familiar with this information will help you obtain the
best performance from your Coinco bill acceptor.
MODELS
MAG Series bill acceptors are self-containe units
esigne to work with existing ven ing machine inter-
faces, plus MDB ven ors. Liste below are some of the
mo els available:
MAG50B MAG bill acceptor, 500 capacity
stacker, 110V AC, Bottler interface
an mask
MAG52BX MAG bill acceptor, 500 capacity
stacker, 24V DC, Bottler mask, MDB
interface only
MAG50SA MAG bill acceptor, 500 capacity
stacker, 110V AC, Snack interface an
mask,
A itional length harness
MAG50B bill acceptors are primarily use in col rink
ven ors which use either the electromechanical, elec-
tronic, or MDB interface. This bill acceptor uses the
"bottler" interface, which communicates to the ven or
through either HIGH LEVEL or MDB communication.
MAG52BX supports MDB communication only.
MAG50SA an MAG52SA bill acceptors are primarily
use in either electronic or MDB snack, coffee or foo
machines. These bill acceptors use the "snack" interface
an communicate to the ven or through either PULSE,
SERIAL, PARALLEL or MDB communication.
FOR YOUR RECORDS
A label in icating the mo el number an serial number is
affixe to the back of the bill acceptor. Refer to the
mo el an serial number whenever you call upon your
Coinco Service Center for information or service. The
first four igits of the serial number contain the manufac-
turing ate co e which in icates the beginning of the
warranty perio .
EXAMPLE: Serial number 269900135. First and
second digits indicate the week of manufacture. The
third and fourth digits indicate the ear (the 26th week
of 1999).
FEATURES
 Mo ular esign
 Bill Hol Feature.
 Center rive belt.
 Scallope bill path for wet bill acceptance.
 State-of-the-art electronic logic system
 Switch selectable acceptance of the following bills: $1,
$2, $5, $10 an $20.
 High capacity bill box.
 Van al resistant esign protects against: saltwater, bill
pullback, counterfeit bills.
 Utilizes stan ar mounting an electrical interfaces.
 110 an 24 VAC an 24 VDC Multi-Drop Bus
interfaces available.
 High impact, non-corrosive plastic construction.
 Easily accessible bill path.
 Self- iagnostics communicate via status light.
 Stan ar /High Level security switch.
 Switch selectable acceptance of bills face up, in one or
both irections.
 Optional hasp for locking bill box.
 Manufacture an supporte by Coinco.
 Ma e in the U.S.A.
AFTER UNPACKING
After unpacking the unit, inspect it for any possible
shipping amage. If the unit is amage , notify the
shipping company imme iately. Only the co-signee (the
person or company receiving the unit) can file a claim
against the carrier for shipping amage. We recommen
that you retain the original carton an packing materials
to reuse if you nee to transport or ship your acceptor in
the future.
If the bill acceptor is being store or use as a spare,
always keep it in its shipping carton when not in use.
This will keep it clean an offer the best protection for
the unit.

5
SECTION : GENERAL INFORMATION
MAIN LOGIC BOARD ASSEMBLY
The main logic boar contains the microprocessor which
controls all the functions of the bill acceptor base on
information from the ven ing machine, coin mechanism
an various bill acceptor sensors.
Also containe on the main logic boar is the power
supply which receives its primary voltage from the
ven ing machine. For 117VAC units, the primary AC
voltage is route to the transformer in the bill acceptor
where it is re uce to 24VAC. This 24VAC is then
route back to the main logic boar where it is rectifie
an filtere for logic boar operation. For 24VAC an 24
VDC (MDB) units, no transformer is nee e . The
primary voltage is rectifie an filtere on the main logic
boar .
SPECIFICATIONS
Power Requirements
MAG50B, MAG50SA  117V AC
95 to 130 VAC, 60 Hz
0.2 Amp max stan by
0.75 Amp max operating
MAG52B, MAG52SA  24V AC
20 to 32 VAC, 60 Hz
0.2 Amp average stan by
2.5 Amp average operating
MAG52BX--24V C
22 to 45 VDC
0.2 Amp average stan by
2.5 Amp average operating
Operating Temperature
0°F to 150°F
-18°C to 65°C
Storage Temperature
-22°F to 165°F
-30°C to 74°C
Relative Humidity
5% to 95% non-con ensing
Physical Weight in Shipping Carton
5.7 poun s - 117VAC
4 poun s - 24VAC
Physical imensions
MAG30B MAG50B MAG70B
Height 11.16 inches 11.16 inches 11.16 inches
from top of bill box to bottom of mounting plate
Width 5.26 inches 5.26 inches 5.26 inches
from logic board cover to mounting plate
epth 4.29 inches 4.92 inches 6.17 inches
from mounting plate to back of stacker

6
3.32
2.87
1.74
MAGxxSA
3.25
.99
2.85
3.32
MAGxxB
Depth
1.21
.53
1.00
4.24
4.97
2.91
Depth
4.231.80
2.26
4.23
6.80
1.33
2.00
3.74
5.26
5.20
4.59
3.25
11.16
Depth
B models SA models
MAG30 4.29 5.03
MAG50 4.92 5.66
MAG70 6.17 6.91
MAG90 8.67* 9.41*
*Add 0.25 for metal cashbox
SECTION : GENERAL INFORMATION
Dimensions

7
SECTION 2: INSTALLATION
OPTION SWITCH SETTINGS
MAG bill acceptors contain an option switch bank on the
main logic boar which allows the unit to be customize
to the requirements of the in ivi ual account. This switch
bank is factory set with switch 3 an 8 in the ON posi-
tion an 1, 2, 4, 5, 6, an 7 in the OFF position.
Setting Option Switches (see Figure 1)
Remove power from the bill acceptor. Remove the bill
box. Locate on the si e of the logic boar cover is the
option switch access hole. Insert a small screw river
through the access hole to set the option switches as
esire (see Figure 2). Reinstall the bill box. Apply
power an test for proper operation.
Figure 2
Figure 1
MAG**SA Option Switch Settings
(see Figure 2)
MAG**B Option Switch Settings
(see Figure 2)
SWITCH ON OFF
1 High Security Stan ar Acceptance
2 Accepts bills in one Accepts bills in both
irections only (face irections (face up)
up, green seal first)
3 Stan ar cre it pulse Short cre it pulse
150ms on 150ms off 50 ms on 50 ms off
4 $20 Accept $20 Reject
5 $10 Accept $10 Reject
6 $5 Accept $5 Reject
7 $2 Accept $2 Reject
8 $1 Accept $1 Reject (see note)
NOTE: The 407982 logic boar with software
67090 will accept $1.00 bills with Switch 8 "OFF",
if no other bills are enable . This is the maximum
accept mo e.
If however, another bill switch is "ON", then $1.00
bills will be rejecte if Switch 8 is "OFF".
INSTALLING THE BILL ACCEPTOR
1. Remove power from the ven ing machine.
2. Set the bill acceptor option switches as esire .
3. Connect the bill acceptor harness to the mating
harness in the ven ing machine.
4. Mount the bill acceptor accor ing to the instructions
foun in the ven ing machine manual or appropriate
kit literature.
NOTE: Ensure bill acceptor is free of all obstructions
5. Loa the ven ing machine with pro uct an fill the
coin changer with change.
6. Apply power to the ven ing machine.
7. Test for proper operation.
SWITCH ON OFF
1 High Security Stan ar Acceptance
2 Accepts bills in one Accepts bills in both
irections only (face irections (face up)
up, green seal first)
3 Serial or Parallel Pulse Interface
Interface
4 $20 Accept $20 Reject
5 $10 Accept $10 Reject
6 $5 Accept $5 Reject
7 $2 Accept $2 Reject
8 $1 Accept $1 Reject
OPTION SWITCH
ACCESS HOLE
#8
#1
O
N
O
F
F
12345678

8
BILL RECOGNITION
When a bill is inserte into the bill acceptor an it blocks
the left an right alignment sensors as well as the center
optic sensor, the transport motor beings to run.
BILL VALIDATION
From the time the transport motor begins to run until the
trailing e ge of the bill leaves the alignment sensors,
optical an magnetic sensors sen information to the
microprocessor to etermine the vali ity of the bill.
BILL STACKING AND CREDIT
If the bill is etermine to be authentic, it is transporte
to the stack position. Once the sensors of the lower
housings anti-pullback lever signals the microprocessor
that the bill is in the stacking position, the stacker motor
runs an cre it is given.
BILL REJECTION
If the bill is etermine to be invali , the wrong enomi-
nation or the anti-pullback levers are active when the bill
is etermine to be in the stack position, the transport
motor will reverse returning the bill to the customer.
COMPONENT EXPLANATION
(see Figure 3)
Bill Transport and Stacking
The bill transport system is compose of a motor an
gearcase assembly an two sets of pulleys an belts.
When the transport motor is energize , it pulls the bill in
by san wiching it between the lower housing rollers an
the chassis belts. During the vali ation process, the bill is
transferre from the lower housing rollers an chassis
belts to the interme iate frame an chassis belts.
The bill stacker is compose of a motor an gearcase
assembly an a pusher plate assembly. When the bill is
transporte past the anti-pullback levers into the stacking
position, the stacker motor energizes riving the pusher
plate, which in turn, pushes the bill into the bill box.
eft and Right Alignment Sensors
The left an right alignment sensors sen information to
the microprocessor to insure that the bill is the right
wi th an that it is being fe in correctly.
Center Optic Sensor
The center optic sensor informs the microprocessor that
the bill is rea y to be transporte if the information from
the alignment sensors is correct.
eft and Right Optic Sensors
The left an right optic sensors an associate circuitry
perform various optical checks on the bill an sen that
information to the microprocessor for bill vali ation.
Magnetic Sensor
The magnetic sensor an its associate circuitry performs
checks on the magnetic properties of the bill an sen s
that information to the microprocessor for bill vali ation.
Anti-Pullback ever
The lower anti-pullback lever is optically monitore to
tell the microprocessor when the bill has entere the stack
position or if an attempt to efrau the unit is taking
place.
Stacker Home Sensor
The stacker home sensor is an optical sensor that informs
the microprocessor of the position of the stacker pusher
plate.
Encoder Sensor
Connecte to the transport motor is an enco er wheel
which is optically monitore to etermine the spee of the
transport motor an to etermine the position of the bill
in the bill path.
SECTION 3: OPERATION

9
SECTION 3: OPERATION
Figure 3
Component Explanation
BILL BOX LID
INTERMEDIATE FRAME
BILL BOX
STACKER
HOME
SENSOR
PUSHER PLATE
CHASSIS BELT
ENCODER SENSOR
ANTI-
PULLBACK
LEVERS
LEFT & RIGHT
ALIGNMENT SENSORS
INTERMEDIATE
FRAME BELTS
LOWER HOUSING
CENTER OPTIC SENSOR
CENTER
DRIVE
BELT
LEFT & RIGHT
OPTIC SENSORS

10
VALIDATOR MAIN
LOGIC BOARD
407982
OR
408049
BROWN
BLACK
BLUE
2
5
6
1
2
1
2
4
3
5
5
5
5 5
5
5 5
24 AWG
24 AWG
24 AWG
24 AWG
4 PIN POWER HARNESS
(407419-1)
JONES PLUG
POWER HARNESS
(407052-1)
1
2
3
6
5
4
1
2
3
6
5
4
1
5
BLACK
RED
GREEN
WHITE
24 AWG
24 AWG
24 AWG
24 AWG
P. P. -
P. P. -
110 VAC NEU
110 VAC HOT
24 VAC HOT
24 VAC NEU
TRANSFORMER
AND HARNESS ASSEMBLY
(920949-2)
P2
P. P. -
P. P. -
110 VAC NEU
NEU INHIBIT
P. P.
HOT ENABLE
110 VAC HOT 9
8
7
6
5
4
3
P8
P7
11
11
22
22RED
BLU
WHT
WHT
P5
1
2
3
4
5
1
2
3
4
5
BRN
RED
ORG
YEL
DK GRN (W/GRN)
BLU
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
7
PUR
GRY
WHT
BLK
PNK (W/BRN/PNK)
LT BLUE (W/RD/PNK)
LT GRN (W/OR/PNK)
P3
P9
9
8
7
6
5
4
3
TO
CHANGER
CONNECTOR
(920274)
TERMINAL
PIN
(920275)
ANTI
CHEAT
GBR
WHT/GRN
WHT/BLK
WHT/RED
P14B
GBRP14A
LOWER BOARD
AND HARNESS ASSEMBLY
(407125)
P6
BLACK
BLACK
BROWN
BROWN
RED
RED
ORANGE
YELLOW
GREEN
GREEN
BLUE
PURPLE
GRAY
1
2
3
4
5
6
7
8
9
SENSOR COM
LEVER LOWER
VE3
VE2
TRANS. C
REFL. L
REFL. R
GND
+ 12V 1
2
3
4
5
6
7
8
9
BLACK
BROWN
RED
GREEN
N.C.
WHITE
N.C.
WHITE
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
P11
P. P.
W/RED
WHITE
2
1
24 AWG
24 AWG
MULTI-DROP BUS
CONNECTOR
(920273)
TERMINAL SOCKET
(920276)
CR-
CR+ 2
1
P1
P6
4
2
3
1
5
6
1
2
3
4
5
6
7
8
9
2
1
1
2
3
4
5
6
BRN
RED
ORG
YEL
GRN
(RED DOT)
(RED DOT)
1
2
3
4
5
33
22
11
STACKER BOARD AND
HARNESS ASSEMBLY
(407246)
STACKER
HOME
SENSOR
TRANSPORT MOTOR
(920195-2)
BLUE DOT
STACKER MOTOR
(920195)
P5 P11A P11B
ENCODER
WHEEL
UPPER BOARD
AND HARNESS ASSEMBLY
(407244)
P3
LEVER UPPER
SENSOR COM
TRANS R
TRANS L
SENSOR SINK
+12V
7
8
9
10
11
12
13
1
2
3
4
5
6
POSITION SENSOR
RIGHT SKEW
LEFT SKEW
VE3
REFL. C
ANALOG MAG
GND
CASHBOX
VE2
STACKER HOME
E.W.
+12V
SECTION 3: OPERATION
INTERCONNECTIONS
MAG50B/MAG52B

11
SNACK VALIDATOR MAIN
LOGIC BOARD
408064
TO
CHANGER
CONNECTOR
(920274)
TERMINAL
PIN
(920275)
ANTI
CHEAT
GBR
WHT/GRN
WHT/BLK
WHT/RED
P14B
GBRP14A
LOWER BOARD
AND HARNESS ASSEMBLY
(407125)
P6
BLACK
BLACK
BROWN
BROWN
RED
RED
ORANGE
YELLOW
GREEN
GREEN
BLUE
PURPLE
GRAY
1
2
3
4
5
6
7
8
9
SENSOR COM
LEVER LOWER
VE3
VE2
TRANS. C
REFL. L
REFL. R
GND
+ 12V 1
2
3
4
5
6
7
8
9
BLACK
BROWN
BROWN
RED
GREEN
N.C.
WHITE
N.C.
WHITE
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
P11
P. P.
BLACK
BLUE
WHITE
4
110V POWER HARNESS
(407473)
CONNECTOR
(908834)
TERMINAL PIN
(908835-1)
MULTI-DROP BUS
CONNECTOR
(920273)
TERMINAL SOCKET
(920276)
1
2
3
6
5
4
1
2
3
6
5
4
BLACK
RED
GREEN
WHITE
24 AWG
24 AWG
24 AWG
24 AWG
P. P. -
P. P. -
110 VAC NEU
110 VAC HOT
24 VAC HOT
24 VAC NEU
TRANSFORMER
AND HARNESS ASSEMBLY
(920949-3, -2)
P2
110 VAC NEU
P. P. -
110 VAC NEU 3
2
1
P13
P6
P8
P7
11
11
22
22RED
BLU
WHT
WHT
(RED DOT)
(RED DOT)
P5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
33
22
11
STACKER BOARD AND
HARNESS ASSEMBLY
(407246)
STACKER
HOME
SENSOR
TRANSPORT MOTOR
(920195-2)
BLUE DOT
STACKER MOTOR
(920195)
P5 P11A P11B
ENCODER
WHEEL
UPPER BOARD
AND HARNESS ASSEMBLY
(407244)
P3
BRN
RED
ORG
YEL
DK GRN (W/GRN)
BLU LEVER UPPER
SENSOR COM
TRANS R
TRANS L
SENSOR SINK
+12V
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
7
7
8
9
10
11
12
13
PUR
GRY
WHT
BLK
PNK (W/BRN/PNK)
LT BLUE (W/RD/PNK)
LT GRN (W/OR/PNK)
P3
P9
4
2
3
1
5
6
1
2
3
4
5
6
7
8
9
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
POSITION SENSOR
RIGHT SKEW
LEFT SKEW
VE3
REFL. C
ANALOG MAG
GND
BRN
RED
ORG
YEL
GRN CASHBOX
VE2
STACKER HOME
E.W.
+12V
1
2
3
4
5
6
7
8
9
24V POWER HARNESS
(407474)
CONNECTOR
(908834)
TERMINAL PIN
(908835-1)
1
2
3
4
5
6
7
8
9
1
2
3
4
5
1
2
3
4
5
P14
BROWN
BLACK
BLUE
WHITE
4
CREDIT+
ENABLE
+12V DC
GROUND
CREDIT-
P1
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
17
18
OUT OF SERVICE
ACCEPT ENABLE
$2 CREDIT (OUT OF SERVICE)
SEND
$1 ENABLE, LOW
$2 ENABLE, LOW
$5 ENABLE, LOW
ESCROW RETURN, LOW
$1 CREDIT
INTERRUPT
$5 CREDIT
GROUND
DATA
ESCROW RETURN HIGH
$5 ENABLE, HIGH
$2 ENABLE, HIGH
$1 ENABLE, HIGH
SECTION 3: OPERATION
INTERCONNECTIONS MAG50SA/MAG52SA

12
SECTION 4: MAINTENANCE
Removing the Main ogic Board
(see Figure 5)
Using a small screw river, release the three tabs that
secure the logic box to the main frame. Separate the
logic box from the li by releasing the four tabs with a
small screw river. (Some units also have a tab that
snaps between the two harness hea ers.)
Unplug the harnessing from the logic boar an place the
logic boar in a static-free area.
DISASSEMBLING THE MAG
Removing the Bill Box (see Figure 4)
Push the bill box tab forwar while sli ing the bill
box up.
Figure 4
BILL BOX TAB
BILL BOX
Figure 5
LOGIC BOARD
BOX
LOCKING TABS
MAIN LOGIC BOARD
LOGIC BOX LID

13
MAINFRAME LOWER
HOUSING
LOCKING
TAB
Removing the Intermediate Frame
(see Figure 7)
Using a small straight tip screw river, free the ten
locking tabs which secure the interme iate frame to the
main frame an remove the interme iate frame.
SECTION 4: MAINTENANCE
Removing the ower Housing
(see Figure 6)
To remove the lower housing, push the locking tab on the
bottom of the bill acceptor an pull the lower housing to
the rear.
Figure 7
Figure 6

14
CHASSIS
HARNESS
MAIN
FRAME
CHASSIS
CHASSIS
MAIN FRAME
NUTS
STATIC GROUNDING
SPRING
SNACK
MASK
MOUNTING
FRAME
MAIN FRAME
STATIC GROUNDING
SPRING
MOUNTING
FRAME
BOTTLER
MASK
SECTION 4: MAINTENANCE
Removing the Inlet Mask
(see Figure 8 or 9)
Using a Phillips screw river, remove the three screws
that secure the mask to the mounting frame.
Removing the Mounting Frame and Static
Grounding Spring (see Figure 8 or 9)
Using a Phillips screw river, remove the screws that
attach the mounting plate an groun ing spring to the
main frame.
Removing the Chassis from the Main-
frame (see Figure 10)
Remove the phillips screw securing the chassis to the
main frame. Remove the web wrap from the chassis
harness. Sprea the main frame apart to release the two
locating pins of the chassis from the main frame then pull
own on the chassis. Carefully fee the chassis harness
through the opening in the main frame. Pull the chassis
out through the lower main frame opening.
Figure 8
MAG50B/MAG52B
Figure
MAG50SA/MAG52SA/
MAG50BAB
Figure 10

15
STACKER
BOARD
CHASSIS
ENCODER
SENSOR
SCREWDRIVER
LOCKING
TAB
LOCKING TABS
(BOTH SIDES)
SHOULDER
SCREW
TORX
HEAD
WRENCH
CABLE TIE
CHASSIS
Removing the Encoder Sensor and
Stacker Board (see Figure 12)
Remove the enco er wheel ust cover from the transport
gearcase an motor assembly.
Free the enco er sensor from the top of the transport
motor gear case assembly. Remove the Phillips screw
that secures the stacker boar to the chassis an remove
the stacker boar .
SECTION 4: MAINTENANCE
DISASSEMBLING THE CHASSIS
Removing the Pusher Plate from the
Chassis (see Figure 11)
Cut the cable tie that secures the chassis harnessing.
Remove the two T15 Torx hea shoul er screws that
secure the pusher plate to the stacker gear box assembly.
Pull the pusher plate straight out until the locking tabs of
the stacker sli es catch the chassis. Using a small
screw river, release the four tabs an remove the pusher
plate.
Figure 11
Figure 12

16
CHASSIS BELT
PULLEY TRANSPORT GEARBOX
& MOTOR ASSEMBLY
BELT TENSIONING
SPRING
STACKER GEARBOX
& MOTOR ASSEMBLY
LOCKING TABS
LOCKING TABS
INLET
ASSEMBLY
SLOTS
STACKER
ASSEMBLY
SLOTS
CHASSIS
BELT
CHASSIS
BELT
TRANSPORT MOTOR
ASSEMBLY
Figure 15
Removing the Upper Sensor Board from
the Chassis (see Figure 15)
Remove the lower chassis belt shaft. Using a small
screw river, remove the two metal sensor boar retaining
clips an the harness retaining clip. Lift the front of the
sensor boar an pull forwar .
SECTION 4: MAINTENANCE
Removing the Transport and Stacker
Motor Assemblies (see Figure 14)
Compress the belt tensioning spring by pushing up on the
stacker motor an gear case assembly until the three
locking tabs of the gear case can be free from their
mating slots in the chassis. Remove the stacker motor an
gear case assembly along with the tensioning spring.
Sli e the transport motor an gear case assembly own
until its three locking tabs are free from their mating
slots on the chassis.
Removing the Chassis Belts and Pulleys
(see Figure 13)
Compress the belt tensioning spring by pressing own on
the transport motor an gear case assembly an remove
the belts. Sli e the pulleys off the lower shafts to prevent
them from falling off.
Figure 14
Figure 13
UPPER SENSOR
BOARD
SENSOR BOARD
RETAINING CLIP
HARNESS
RETAINING
CLIP
LOWER CHASSIS
BELT SHAFT

17
LOWER
HOUSING
TRANSFORMER
TRANSFORMER
HOLDING HOSE
BOTTOM
COVER
SPRING
ANTI-PULLBACK
LEVER
CENTER CHASSIS
BELT SHAFT
SECTION 4: MAINTENANCE
Removing the Chassis Anti-Pullback
ever and Spring (see Figure 16)
Remove the center chassis belt shaft an remove the anti-
pullback lever an spring.
DISASSEMBLING THE LOWER
HOUSING
Removing the Transformer
(see Figure 17)
Remove the two Phillips screws from the bottom of the
lower housing that secure the bottom cover. Remove the
bottom cover. Cut the cable tie an separate the harness.
Remove the hose that hol s the transformer in place.
Remove the transformer.
Figure 17
Figure 16

18
SECTION 4: MAINTENANCE
Removing the Mag Roller and Spring
(see Figure 18)
Remove the two Phillips screws that secure the roller
spring an remove the spring.
Removing the ower Housing
Anti-Pullback ever and Spring
(see Figure 19)
Using a small rift or Phillips screw river, epress the
locking tab in the small hole in top of the lower housing.
At the same time, insert a small stan ar bla e screw-
river into the center slot an push the anti-pullback
assembly back out of the retaining tabs. Remove the anti-
pullback lever from its mount by releasing the locking
tabs. Pay close attention to the placement of the spring to
assure its correct position on reassembly.
Removing the ower Sensor Board
(see Figure 18)
Remove the Phillips screw that secures the sensor boar
to the lower housing, unsnap the lower housing anti-
pullback sensor boar an remove the lower sensor
boar .
Figure 18
Figure 1
LOWER HOUSING
ANTI-PULLBACK
SENSOR BOARD
LOWER SENSOR
BOARD SPRING
SPRING
ANTI-PULLBACK
LEVER
ANTI-PULLBACK
MOUNT

19
FRONT PULLEY
BACK PULLEY
SHAFT
SECTION 4: MAINTENANCE
Removing the ower Housing Rollers and
Pulleys (see Figure 20)
Sli e the front pulleys off the shaft.
To remove the center belt, sli e the back pulleys off the
shaft. Gently tap the back shaft with a small hammer
until the shaft splines are free from the center pulley.
MAG50 CLEANING MAINTENANCE
PROCEDURE
NOTE: Petroleum-based cleaners and freon-based
propellants can damage plastic and some electronic
components. Scouring pads and stiff brushes ma harm
the protective coating on the circuit boards and can mar
the plastic. These items should never be used when
cleaning the MAG bill acceptor.
The MAG50 shoul be cleane every 20,000 bills or
every two years (or as nee e , epen ing on the environ-
mental con itions of the location). Dust can be remove
with a soft brush or cloth or it can be blown out using
compresse air.
Procedure
1. Disconnect power from the bill acceptor.
2. Remove the bill box an use a soft cloth to wipe any
ust from aroun the interme iate frame an stacker
plate.
3. Remove the lower housing.
4. Using compresse air or a soft brush, blow or brush
the ust off of the optic sensors.
5. Remove ust from aroun the rollers on the lower
housing an the sensors on the upper sensor boar .
The upper sensors are locate irectly above the
lower housing sensors when the lower housing is
installe .
6. The bill path can be further cleane of any irt or oil
by using a soft cloth moistene with a mil soap an
water solution.
7. Clean the magnetic hea with a cotton swab an
isopropyl alcohol.
8. Remove ust from the transport belt areas an any
other places of buil up.
9. Once the lower housing is ry, place it back into the
mainframe making sure the tab on the bottom locks
into place.
10. Remount the bill box.
11. Apply power an insert bills to verify the unit is
functioning properly.
Figure 20

20
SECTION 4: MAINTENANCE
MAG50 CLEANING PROCEDURE
FOR SALT WATER POLLUTED
UNITS
NOTE: Petroleum-based cleaners and freon-based
propellants can damage plastic and some electronic
components. Scouring pads and stiff brushes ma harm
the protective coating on the circuit boards and can mar
the plastic. These items should never be used when
cleaning the MAG bill acceptor.
Procedure
1. Remove power from the bill acceptor.
2. Remove the bill acceptor from the ven ing machine.
3. Open the bill box li an verify that the stacker plate
is in the stan by/home position. If it is not in the
home position, apply power an observe that the
stacker plate returns home.
4. Remove the bill box.
WARNING: If moisture is present, allow the unit to dr
thoroughl before appl ing power to avoid possible
shock hazard. If the stacker plate does not return to the
home position, remove power and carefull remove the
bill box to avoid damaging the bill box and/or stacker
plate.
5. Remove the lower housing.
6. Remove the bottom cover from the lower housing.
7. Run hot water (110°-140°F) over the lower housing
from the top an bottom. Using a soft brush, gently
clean any salt resi ue. Use a soft, absorbent cloth to
clean resi ue off the lower housing. If the trans-
former gets wet, allow the unit to ry for 24 hours
before applying power.
8. Remove the front mask. Using hot water an a soft
brush, clean the front mask, upper sensor boar an
main frame anti-pullback levers.
CAUTION: The motors are not protected from water,
therefore the unit must be held in a manner that prevents
water from running over them.
9. Verify the anti-pullback levers move freely an that
the spring returns them to their exten e position.
10. Allow the unit to ry thoroughly.
11. Clean the magnetic hea using a swab an isopropyl
alcohol.
12. Replace the front mask.
13. Replace the lower housing cover.
14. Place the lower housing into the main frame.
15. Remount the bill box.
16. Apply power an insert bills to verify the unit is
functioning properly.