Custom Audio Electronics MCR33 Series User manual

SERVICE MANUAL
MCR33xx
Magnetic/IC card Reader/Writer

Technical characteristics are subject to change without notice
All rights reserved
This document may not be reproduced, adapted or translated without prior written authorization.
may not be held liable for direct, indirect, accidental, consequential or other
damages relating to the provision and use of this information.
Edition: September 1999
Code: MAN 1129
Previous issue Subjects covered in the new issue New pages
introduced or amended
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This manual is meant for technicians servicing the MCR33xx card reader/recorder.
NOTE:
The machine must be used solely for the purposes for which it was designed. Any intervention
modifying its original operating configuration must be authorized and certified beforehand by the
manufacturer.
Custom is not liable for any damages caused by the use of non-original spare
parts.
FOREWORD

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FOREWORD....................... 3
INTRODUCTION AND FUNCTIONAL DESCRIPTION ....... 5
MCR33xx IN THE SYSTEM ................... 6
GENERAL CHARACTERISTICS ................. 7
FUNCTIONAL ASSEMBLIES .................. 8
EXTERNAL CONTROLS AND INDICATORS ............. 9
BLOCK DIAGRAM ......................10
INSTALLATION AND USE..................11
MCR33xx POWER SUPPLY...................11
MCR33xx Power Supply (desktop version) ..............11
MCR33xx Power Supply (Open Frame version) ............11
SERIAL CONNECTION RS 232 .................12
COMMUNICATION PROTOCOL DESCRIPTIONS ...........15
COMMAND LIST ......................16
COMMANDS ........................20
Software Diagnostics & DEMO of MCR33XX ..........31
CONTROL ELECTRONICS .................41
MECHANICAL ADJUSTMENTS ...............44
SHUTTER ADJUSTMENT ...................45
Checking the shutter opening mechanism ..............45
Shutter opening electromagnet adjustment..............45
Shutter position microswitch adjustment...............46
Checking the shutter opening mechanism ..............46
Card presence microswitch adjustment ...............47
ADJUSTING THE POSITIVE DRIVE BELT..............48
Adjusting the belt ......................48
ADJUSTING THE CONTRAST ROLLERS ..............49
Checking Contrast Roller Adjustment................50
READ/WRITE HEAD ADJUSTMENT................51
CHIP CARD ELECTROMAGNET ADJUSTMENT ...........52
GENERAL FEATURES ...................53

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The MCR33xx card reader/writer is a compact, versatile peripheral, suitable for the most widely
disparate applications, even in the hardest environmental conditions.
In accordance with ISO standards, the MCR33xx can record both low and high coercivity cards,
by means of a simple software-driven selection.
Available in different versions depending on the installed options, the MCR33xx can be used
manually (in desktop configuration), or in self-service applications (open frame configuration).
The desktop version is available with the external 110/230 Volt power supply unit.
Connection with the system is through an RS-232 serial interface.
INTRODUCTION AND FUNCTIONAL
DESCRIPTION

6
MCR33xx IN THE SYSTEM
MCR33xx

GENERAL CHARACTERISTICS
Fully controlled function by software with autotests, FW download, no jumper or setting. Specific
software and driver to test, demo, work and troubleshoot.
Shutter
The shutter (installed only in the self service configuration) is activated by an electromagnet; its
open or shut position is detected by a microswitch located on the right side of the electromagnet.
On the left side of the inlet is installed a microswitch that detects the presence of the card, while a
reading head positioned on the lower side checks the incoming card for the presence of written
magnetic tracks, to prevent objects other than written magnetic cards from being inserted into the
peripheral.
Card Transport
Astepped motor controls the transport of the card inside the MCR33xx.Three conveyor rollers,
moved by three positive drive belts, move the card over the read/write head.
Card Reading/Writing
High and/or low coercivity head mounted on a special support fastened by means of a leaf spring.
The head can read and write the tracks through a software selection; there are no jumpers or dip
switches.
High precision mechanics let the card slide over special bearings.
Power Supply
Only the desktop version is equipped with an external power supply
unit. The self service version is fitted with a 4-way connector, whose
specifications are described in the figure that follows.
1 - DC +24V
2 - gnd
3 - gnd
4 - DC +24V (aux)
7
+
To power down detect circuit
Diode Power
+24Vdc 1
GND 2
External capacitor (opt.)
3
Diode
4
150 ohm/2W
Electronic
Board
Power supply
MOLEX
Connector
4
3
2
1

FUNCTIONAL ASSEMBLIES
1 - Shutter position microswitch
2 - Stepper motor
3 - Chip card contact activation electromagnet
4 - Chip card contacts
5 - Electronic board
6 - Shutter opening electromagnet
7 - Card presence microswitch
8 - Reading head to detect incoming written magnetic band
9 - Inlet photo two (standard)
10 - Reading/writing photo
11- - Reading/writing head
12 - End of path photo
13 - Inlet photo one (installed only on the version without the shutter)
14 - Chip card photo
12 3
8
right side
14 5 4 6
78
12
11 10 913
left side

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EXTERNAL CONTROLS AND INDICATORS
1 - ON/OFF switch (only on DESKTOP version)
2 - LED
3 - RS232 serial connection (male - db9)

BLOCK DIAGRAM
10
Shutter solenoid
driver
Card detect sensor
Card in read/write
position sensor
Card at the end
of path sensor
FLASH eprom
Mag-stripe
read/write circuit
Motor driver
IC contact driver
Automatic Card feeder
Motor
Automatic Card feeder
Sensor
Card detect circuit
Pre - head (#2, #3)
Shutter solenoid
Inlet photosensor
T
ransport stepper motor
IC contact solenoid
(Optional)
HOST serial
Connection
Power supply
Aux
DC +24V
TXD
RXD
RTS
CTS
DTR
DSR
SNG
Dati TX/RX (download)
M
A
X
2
3
2
Mother
Board
Card detect SW
Reading/writing photo
Endofpathphoto
Shutter open detect
Read/write #1#2#3
Flat cable
(Optional)