I
Service Manual
METROLOGIC INSTRUMENTS, INC.
MS6520 Cubit
®
Series
II
Table of Contents
Section Name: Page #
PRELIMINARY INFORMATION.............................................................................................................................................1-1
1.1 PRODUCT SAFETY..............................................................................................................................................................1-1
1.1.1 Notices........................................................................................................................................................................1-1
1.1.2 European Standard..................................................................................................................................................1-2
INTRODUCTION............................................................................................................................................................................2-1
2.1 INTRODUCTION............................................................................................................................................................2-1
2.2 MANUAL SCOPE.................................................................................................................................................................2-1
2.3 MANUAL SYMBOL KEY.....................................................................................................................................................2-1
2.4 GENERAL PRECAUTIONS...................................................................................................................................................2-2
2.4.1 PRODUCT ESD INFORMATION:.......................................................................................................................2-2
2.4.2 LASER SAFETY INFORMATION:.......................................................................................................................2-2
2.5 MS6520 CUBIT SCANNER HISTORY PROFILE................................................................................................................2-3
THEORY & OPERATION............................................................................................................................................................3-1
3.1 BASIC DATA DECODING SECTIONAL SUMMARYS.........................................................................................................3-1
3.1.1 Photodiode (Detector) Summary: .........................................................................................................................3-1
3.1.2 Pre-Amplifier Sectional Summary:.......................................................................................................................3-1
3.1.3 Signal Processor Section Summary:.....................................................................................................................3-1
3.1.4 Decoder Section Summary:....................................................................................................................................3-1
3.2 PROGRAMMABLE DEPTH OF FIELD OPERATION SPECIFICATIONS..............................................................................3-2
3.2.1 OPTIMAL LOW AND CLOSE DEPTH OF FIELD...........................................................................................3-2
3.2.2 OPTIMAL HIGH AND NORMAL DEPTH OF FIELD.....................................................................................3-3
3.2.3 FAR DEPTH OF FIELD.........................................................................................................................................3-4
BOARD REMOVAL & INSTALLATION ...............................................................................................................................4-1
4.1 OPTICS BENCH REMOVAL & INSTALLATION.................................................................................................................4-1
4.1.1 Optics Bench Removal.............................................................................................................................................4-1
4.1.2 Optics Bench Installation.........................................................................................................................................4-2
4.2 DECODE BOARD REMOVAL & INSTALLATION...............................................................................................................4-3
4.2.1 Decode Board Replacement...................................................................................................................................4-3
4.2.2 Decode Board Installation......................................................................................................................................4-4
4.3 SIGNAL PROCESSOR BOARD REMOVAL & INSTALLATION..........................................................................................4-5
4.3.1 Signal Processor Board Removal..........................................................................................................................4-5
4.3.2 Signal Processor Board Installation.....................................................................................................................4-6
4.4 VLD REPLACEMENT PROCEDURE...................................................................................................................................4-7
4.4.1 VLD Removal Instructions:....................................................................................................................................4-7
4.4.2 VLD Installation Instructions:...............................................................................................................................4-7
III
PCB SPECIFICATIONS................................................................................................................................................................5-1
5.1 SIGNAL PROCESSOR BOARD.............................................................................................................................................5-1
5.1.1 Signal Processor Board Functions.......................................................................................................................5-1
5.1.2 SIGNAL PROCESSOR BOARD (37823-A) LAYOUT.......................................................................................5-2
5.2 DECODE BOARD.................................................................................................................................................................5-3
5.2.1 DECODE Board Functions....................................................................................................................................5-3
5.3 DECODE BOARD (37576-D) LAYOUT.....................................................................................................................5-4
5.4 LED BOARD .......................................................................................................................................................................5-5
5.4.1 LED Board Functions.............................................................................................................................................5-5
5.4.2 LED/BEEPER BOARD (37587-D) LAYOUT......................................................................................................5-5
TROUBLESHOOTING..................................................................................................................................................................6-1
6.1 AUDIBLE INDICATORS...............................................................................................................................................6-1
6.2 FAILURE MODES...........................................................................................................................................................6-2
6.3 VISUAL INDICATORS..................................................................................................................................................6-3
6.4 MS6520 SERIES TROUBLESHOOTING GUIDE.................................................................................................................6-4
SERVICING DIAGRAMS, PARTS & PINS............................................................................................................................7-1
7.1 SCANNER PARTS...........................................................................................................................................................7-1
7.2 CUBIT MODEL EXPLODED VIEW.....................................................................................................................................7-2
7.3 SCANNER CONNECTOR/CABLE PINOUT CONNECTIONS...............................................................................................7-3
7.3.1 Cubit Modular Jack Pinout....................................................................................................................................7-3
7.3.2 Cable Connector Configurations..........................................................................................................................7-3
7.4 MS6520 ORBIT SCANNER SPECIFICATIONS.................................................................................................................7-5
7.4.1 OPERATIONAL DESIGN SPECIFICATIONS...................................................................................................7-5
7.4.2 OVERALL PHYSICAL DIMENSIONS .................................................................................................................7-5
7.4.3 ELECTRICAL CHARACTERISTICS....................................................................................................................7-6
7.4.4 ENVIRONMENTAL DETAILS...............................................................................................................................7-6
7.5 CAUTION AND SERIAL NUMBER LABELS.......................................................................................................................7-7
7.5.1 Labels.........................................................................................................................................................................7-7
8 ORDERING REPLACEMENT PARTS, SERVICING INFORMATION .............................................................8-2
8.1 6500 REPLACEMENT PARTS AVAILABLE.......................................................................................................................8-2
8.2 LIMITED WARRANTY.........................................................................................................................................................8-3
8.3 METROLOGIC SERVICE LOCATIONS................................................................................................................................8-5
8.4 PATENTS..............................................................................................................................................................................8-6
IV
Manual Tables
Table Name: Page #
Table 1 - Manual Symbology............................................................................................................................................................2-1
Table 2 - Troubleshooting Chart – Powering up problems.........................................................................................................6-4
Table 3 - Troubleshooting Guide – Scanning & reading problems...........................................................................................6-5
Table 4 - Troubleshooting Chart - rs-232 interface only.............................................................................................................6-6
Table 5 - Keyboard Wedge Pinout Chart.......................................................................................................................................7-3
Table 6 - RS-232/LTPN Pinout Chart.............................................................................................................................................7-3
Table 7 - "Standard" Powerlink Cable...........................................................................................................................................7-3
Table 8 - Powerlink Cable Pinout.................................................................................................................................................7-54
Table 9 - Adapter Cable Pinout....................................................................................................................................................7-54
Table 10 - Operation Specifications................................................................................................................................................7-5
Table 11 - MECHANICAL Demensions..........................................................................................................................................7-5
Table 12 - Electrical Characteristics..............................................................................................................................................7-6
Table 13 - Enviromental Details......................................................................................................................................................7-6
1-1
1 PRELIMINARY INFORMATION
1.1 Product Safety
1.1.1 Notices
Notice
This equipment has been tested and found to comply with limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which
case the user will be required to correct the interference at his own expense. Any unauthorized
changes or modifications to this equipment could void the users authority to operate this device.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause
undesired operation.
Notice
This Class A digital apparatus complies with Canadian ICES-003.
Remarque
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
Caution
Use of controls or adjustments or performance of procedures other than those specified herein may
result in hazardous laser light exposure. Under no circumstances should the customer attempt to
service the laser scanner. Never attempt to look at the laser beam, even if the scanner appears to be
nonfunctional. Never open the scanner in an attempt to look into the device. Doing so could result
in hazardous laser light exposure. The use of optical instruments with the laser equipment will
increase eye hazard.
Atención
La modificación de los procedimientos, o la utilización de controles o ajustes distintos de los
especificados aquí, pueden provocar una luz de láser peligrosa. Bajo ninguna circunstancia el
usuario deberá realizar el mantenimiento del láser del escáner. Ni intentar mirar al haz del láser
incluso cuando este no esté operativo. Tampoco deberá abrir el escáner para examinar el aparato. El
hacerlo puede conllevar una exposición peligrosa a la luz de láser. El uso de instrumentos ópticos
con el equipo láser puede incrementar el riesgo para la vista.
1-2
Attention
L'emploi de commandes, réglages ou procédés autres que ceux décrits ici peut entraîner de graves
irradiations. Le client ne doit en aucun cas essayer d'entretenir lui-même le scanner ou le laser. Ne
regardez jamais directement le rayon laser, même si vous croyez que le scanner est inactif. N'ouvrez
jamais le scanner pour regarder dans l'appareil. Ce faisant, vous vous exposez à une rayonnement
laser qú êst hazardous. L'emploi d'appareils optiques avec cet équipement laser augmente le risque
d'endommagement de la vision.
Achtung
Die Verwendung anderer als der hier beschriebenen Steuerungen, Einstellungen oder Verfahren
kann eine gefährliche Laserstrahlung hervorrufen. Der Kunde sollte unter keinen Umständen
versuchen, den Laser-Scanner selbst zu warten. Sehen Sie niemals in den Laserstrahl, selbst wenn
Sie glauben, daß der Scanner nicht aktiv ist. Öffnen Sie niemals den Scanner, um in das Gerät
hineinzusehen. Wenn Sie dies tun, können Sie sich einer gefährlichen Laserstrahlung aussetzen. Der
Einsatz optischer Geräte mit dieser Laserausrüstung erhöht das Risiko einer Sehschädigung.
Attenzione
L’utilizzo di sistemi di controllo, di regolazioni o di procedimenti diversi da quelli descritti nel
presente Manuale può provocare delle esposizioni a raggi laser rischiose. Il cliente non deve
assolutamente tentare di riparare egli stesso lo scanner laser. Non guardate mai il raggio laser, anche
se credete che lo scanner non sia attivo. Non aprite mai lo scanner per guardare dentro
l’apparecchio. Facendolo potete esporVi ad una esposizione laser rischiosa. L’uso di apparecchi
ottici, equipaggiati con raggi laser, aumenta il rischio di danni alla vista.
1.1.2 European Standard
Warning
This is a class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
Funkstöreigenschaften nach EN 55022:1998
Warnung!
Dies ist eine Einrichtung der Klasse A. Diese Einrichtung kann im Wohnbereich Funkstörungen
verursachen; in diesem fall kann vom Betrieber verlangt werden, angemessene Maßnahmen
durchführen.
Standard Europeo
Attenzione
Questo e’ un prodotto di classe A. Se usato in vicinanza di residenze private potrebbe causare
interferenze radio che potrebbero richiedere all’utilizzatore opportune misure.
Attention
Ce produit est de classe “A”. Dans un environnement domestique, ce produit peut être la cause
d’interférences radio. Dans ce cas l’utiliseteur peut être amené à predre les mesures adéquates.
2-1
2 INTRODUCTION
2.1 INTRODUCTION
Metrologic's Cubit® is a compact, omnidirectional bar code scanner that can be used as a
presentation scanner or as the scanning component in Original Equipment Manufacturer (OEM)
applications. Incorporating the latest in scanning technology Cubit can scan and decode all standard
bar codes in any orientation.
As an OEM product, the IS6520 is both easy to use and install. The IS6520 is equipped with three
threaded mounting holes, serial programming and PowerLink quick-disconnect cables. The modular
design of Cubit allows the unit to be tailored to meet the needs of a specific application.
As a retail scanner, the MS6520’s user-friendly mounting bracket bolts securely to the countertop
or wall for fixed-mount scanning. Cubit’s small size and aggressive scan pattern make it ideal for
convenience, sporting goods, apparel and toy/hobby stores.
Furthermore, Cubit has the option of direct connection to a 5-Volt power source or plug-in the
Metrologic power supply provided with the scanner.
2.2 Manual Scope
This guide provides a way to perform service repairs. It contains an overview of the scanner with
detailed information about troubleshooting, functionality, and scanner performance.
2.3 Manual Symbol Key
TABLE 1 - MANUAL SYMBOLOGY
Caution!
Important Additional Information.
2-2
2.4 General Precautions
** ESD PREVENTION STEPS MUST BE USED DURING ANY
MODIFICATIONS AND/OR REPAIRS TO THIS UNIT! **
2.4.1 PRODUCT ESD INFORMATION:
This product contains ESD sensitive components, or ‘Electrostatic Discharge’ sensitive electronic
parts. Electrostatic discharge is defined as the transfer of charge between bodies at different
electrical potentials.
Electrostatic discharge has the ability to modify the electrical characteristics of a semiconductor
device, possibly degrading or even destroying it. Electrostatic discharge also may upset the
normal operation of an electronic system, causing equipment malfunction or failure.
2.4.2 LASER SAFETY INFORMATION:
Use of controls or adjustments or performance of procedures other than those specified
herein may result in hazardous radiation exposure. Under no circumstances should the customer
attempt to service the scanner. Never attempt to look at the laser beam, even if the scanner appears
to be nonfunctional. Doing so could result in hazardous radiation exposure.
The MS6520 unit is rated as a CLASS IIA laser product, as defined by The U.S. Federal Laser
Product Performance Standard (FLPPS): Title 21 of the Code of Federal Regulations; Part 1000;
[Parts 1040.10 and 1040.11].
CLASS I, II, and IIA lasers are defined as:
CLASS I: cannot emit laser radiation at known hazard levels (typically continuous (CW):
0.4microwatts at visible wavelengths). Users of a Class I laser products are generally exempt from
radiation hazard controls during operation and maintenance (but not necessarily during service).
CLASS II: low power visible lasers, which emit above Class I levels but emitting a radiant power
not above 1mW. The concept is that the human aversion reaction to bright light will protect a
person.
CLASS IIA is a special designation that is based upon a 1000 second exposure and applies only to
lasers that are "not intended for viewing" such as a supermarket laser scanner. These laser are
emitting light in the visible wavelengths (0.4 to 0.7 mm) with power not above 1mW.
2-3
2.5 MS6520 Cubit Scanner History Profile
MS6520 Revision ‘A’ / January 2000
• Light pipe removed from signal processor board and made into separate board.
MS6520 Revision ‘B’ / March 2000
• Ultrasonically welded top case.
MS6520 Revision ‘C’ / August 2000
• VLD from Sony (670nm) to Samsung (650nm).
• Plastic polygon replaces the metal and glass polygon.
• Ground wire is changed from the bench to the board in June of 2002
• VLD goes to laser weld on the third week in August of 2002
• Light shield as part of the can in December of 2003
MS6520 Revision ‘D’ / March 2003
• VLD upgraded to a Samsung 60 degree VLD
• L bracket is die cast
MS6520 Revision ‘F’ / April 2003
• VLD upgraded to Sanyo 70 degree VLD.
MS6520 Revision ‘G’ / June 2003
• VLD cable is changed to a flex cable.
• Signal Processor board is changed to accept a flex cable for VLD
• Signal Processor board is changed to accept 2 L brackets instead of standoffs.
3-1
3 THEORY & OPERATION
3.1 Basic Data Decoding Sectional Summarys
3.1.1 Photodiode (Detector) Summary:
3.1.1.1 Receives the optical signal reflected off the bar code
3.1.1.2 Converts into electrical signal (current) of about 100 nanoamps
3.1.2 Pre-Amplifier Sectional Summary:
3.1.2.1 Part of the Signal processor board, usually contained in a shielded area of the PCB with the Photodiode.
3.1.2.2 Converts the electrical current to a voltage signal
3.1.2.3 Voltage signal is amplified by a factor of 1000
3.1.2.4 Ambient light noise is filtered out. Resultant signal is routed to the mother board to primary signal
processing circuitry
3.1.3 Signal Processor Section Summary:
3.1.3.1 Converts analog waveform into a digital signal that can be used by the microprocessor
3.1.4 Decoder Section Summary:
3.1.4.1 Decoding algorithm decodes digital signals into ASCII characters
FIGURE 2.5-1 VLD LASER AND BARCODE DATA PATHS
3-2
3.2 Programmable Depth of Field Operation Specifications
3.2.1 OPTIMAL LOW AND CLOSE DEPTH OF FIELD
Note: The same depth of field is achieved when programming Cubit® for
either Optimal Low Depth of Field or Close Depth of Field.
3-3
3.2.2 OPTIMAL HIGH AND NORMAL DEPTH OF FIELD
Note: The same depth of field is achieved when programming Cubit® for
either Optimal High Depth of Field or Normal Depth of Field.
3-4
3.2.3 FAR DEPTH OF FIELD
4-1
4 BOARD REMOVAL & INSTALLATION
THE MS6520 ELECTRONICS ARE ESD SENSITIVE! ESD
SAFETY PROCEDURES MUST BE FOLLOWED WHILE
HANDLING THE MS6520 UNIT WITH ANY ELECTRONICS
EXPOSED!!
4.1 Optics Bench Removal & Installation
4.1.1 Optics Bench Removal
4.1.1.1 Flip the unit over, using care not to scratch red
window, so the product label is visible.
4.1.1.2 Remove the four (4) case screws in the back of
the unit. (Figure 4.1-1)
4.1.1.3 Flip the unit back over so the red window is
visible.
4.1.1.4 Remove the top case and lay it faces down next
to the rest of the assembly. (Figure 4.1-2)
4.1.1.5 Remove two (2) screws from the top case that
holds the beeper in place. (Figure 4.1-2)
4.1.1.6 Remove the optics bench from the bottom case
by grasping the signal processor board and
pulling in an upward motion. (Figure 4.1-3)
4.1.1.7 Remove the four (4) grommets from the sides
of the optics bench. (Figure 4.1-3)
FIGURE 4.1-1 REAR SIDE
CASE SCREWS
FIGURE 4.1-2 OPENING CASE & BEEPER
BOARD SCREWS SHOWN
FIGURE 4.1-3 REMOVING OPTICS BENCH AND
RUBBER GROMMETS SHOWN
4-2
4.1.2 Optics Bench Installation
4.1.2.1 Install the four (4) grommets from the sides of
the optics bench. (Figure 4.1-4)
4.1.2.2 Install the optics bench into the bottom case by
grasping the signal processor board, align
rubber grommets over each grommet slot and
carefully insert into case. (Figure 4.1-4 &
Figure 4.1-6)
Do not push down on mirrored optics
assembly while installing into case!
4.1.2.3 If LED/Beeper board is not installed yet, install
board into case with two (2) screws (Figure
4.1-5 RED Arrows) and attach LED cable.
(Figure 4.1-5 BLUE Arrow)
4.1.2.4 Flip over top cover (Red window side) and
install in direction of arrow. (Figure 4.1-5)
Use care when flipping over top lid,
ensuring that the LED cable does not
become pinched between the case sides
or obstructs motor assembly!
4.1.2.5 Flip the unit back over so the serial label tag on
the back is facing up.
4.1.2.6 Install the four (4) case screws into the back of
the unit. (Figure 4.1-7)
FIGURE 4.1-4 INSTALLING OPTICS BENCH AND
RUBBER GROMMETS SHOWN
FIGURE 4.1-6 CASE GROMMET SLOTS
(ONLY TWO SHOWN HERE)
FIGURE 4.1-5 INSTALLING LED/BEEPER
BOARD AND CLOSING UNIT
FIGURE 4.1-7 REAR SIDE
CASE SCREWS
4-3
4.2 Decode board Removal & Installation
4.2.1 Decode Board Replacement
4.2.1.1 Open the Case and remove Optics Bench from
case assembly. (Follow steps 4.1.1 Optics
Bench Removal)
4.2.1.2 Pull on the decode board until the standoffs
unlatch from the optics bench. (Figure 4.2-2)
4.2.1.3 Unplug the motor cable and LED beeper wire.
4.2.1.4 Remove the ground wire from the Signal
Processor Board.
4.2.1.4.1 MS6520 models, from Rev. A up to and
including Rev. C with serial number ending
in 0130, the ground wire is pulled off the
ground lug
4.2.1.4.2 MS6520 models Rev. C with serial numbers
ending in 0131 and beyond, to all current
revisions require that the Signal Processor
board screw be removed to remove the
ground wire.
Screw holding Ground
wire.
Motor Cable
Connection
Led/Beeper
Connection
Ribbon Cable
Connection
Ground Wire
FIGURE 4.2-1 DECODE BOARD
STANDOFFS
FIGURE 4.2-2 OPTICS BENCH WITH DECODE BOARD
ATTACHED AT BOTTOM
4-4
4.2.2 Decode Board Installation
4.2.2.1 Attach ground wire to connection point on
Signal Processor Board. (Refer to figure 4.2-2
shown in Decode Board Removal)
4.2.2.1.1 MS6520 models, from Rev. A up to and
including Rev. C with serial number
ending in 0130, the ground wire is pulled
off the ground lug
4.2.2.1.2 MS6520 models Rev. C with serial
numbers ending in 0131 and beyond, to
all current revisions require that the
Signal Processor board screw be removed
to remove the ground wire.
4.2.2.2 Align the plastic standoffs attached to the
decode board (Figure 4.2-3) and attach into
optics bench holes until board is securely
attached.
4.2.2.3 Connect motor cable, LED / beeper wire, and
ribbon cable into correct connectors. (Figure
4.2-2)
4.2.2.4 Perform steps 4.1.2 for inserting Optics Bench
into case assembly followed by closing and
sealing case shut.
Ground Wire
FIGURE 4.2-3 DECODE BOARD
WITH STANDOFFS SHOWN
4-5
4.3 Signal Processor Board Removal & Installation
4.3.1 Signal Processor Board Removal
4.3.1.1 Open the Case and remove Optics Bench from
case assembly. (Follow steps 4.1.1 Optics
Bench Removal)
4.3.1.2 Disconnect J1 Ribbon cable from signal
processor board J1 connector. (Figure 4.3-2)
4.3.1.3 Remove four Phillips head screws securing
signal processor board from Optics bench
assembly. (Figure 4.3-2)
J1 Ribbon
Connector
Short Philips
Screw
Long Philips
Screw
Short Philips
Screw
Long Philips
Screw
Ground
Wire
FIGURE 4.3-2 OPTICS BENCH ASSEMBLY SHOWING SIGNAL PROCESSOR
BOARD
FIGURE 4.3-1 SIGNAL
PROCESSOR BOARD
4-6
4.3.2 Signal Processor Board Installation
4.3.2.1 Place signal processor board over Optics Bench
assembly with four screw holes aligned over
screw threaded sockets. (See figure 4.3-2 in
previous step.)
4.3.2.2 Secure signal processor board to optics bench
using appropriate Phillips head screws. (See
Figure 4.3-2 in previous step.)
Ensure Ground Wire shown in Figure
4.3-2 is properly connected to signal
processor board.
4.3.2.3 Connect ribbon cable coming from decode
board into J1 Connector on signal processor
board. (See Figure 4.3-2)
4.3.2.4 Perform steps 4.1.2 for installing Optics Bench
assembly into case assembly.
FIGURE 4.3-3
4-7
4.4 VLD Replacement Procedure
4.4.1 VLD Removal Instructions:
4.4.1.1 Open the case to gain access inside the unit.
(Follow Steps 4.1)
4.4.1.2 Carefully remove the decode board from the
unit. (Follow Steps 4.2)
4.4.1.3 Remove the damaged VLD by unscrewing the
two screws shown in the figure to the right.
4.4.1.4 Remove the collector mirror.
4.4.1.5 Remove the SBT resistor from the Signal
Processor board.
4.4.2 VLD Installation Instructions:
4.4.2.1 Install the plastic VLD bracket with the screws
provided with the VLD kit.(for A to C 0232
Revisions)
4.4.2.2 Place a target pin in the collector hole.
4.4.2.3 Using a power up box, power up the replacement
laser.
4.4.2.4 Place the laser in the VLD bracket and place the
beam onto the center of the target pin.
4.4.2.5 Glue in place using Loctite 406 followed by
Loctite 712.
4.4.2.6 When completed determine the VLD SBT and
solder it in. Power should be between 0.780 and
0.820mw out of the VLD.
4.4.2.7 Make sure all the optical areas are clean.
4.4.2.8 Connect SP and motor cables to the power box.
Place optic bench assembly into alignment
fixture and lock in place by pushing locking lever
forward.
4.4.2.9 Turn power on. Motor will spin and VLD will
turn on.
4.4.2.10 Slide the high-density and red pattern windows
all the way to the right to reveal the top window
with the reflective tape.
4.4.2.11 Place target with signal return pattern over
photocell can.
4.4.2.12 Adjust return signal to the center of the target by
manipulating the collector bracket. Do not touch
the coated, curved part of the collector. Beam
must fit into the square on the target.
4.4.2.13 Place cluster target onto mirror #2.
4.4.2.14 Feed joystick through hole in collector mirror
from the front so that the angle of the mirror is
pointing down, and joystick tab is at bottom. Pull
joystick back as far as possible without touching
the collector.
4.4.2.15 Adjust joystick assembly so that the raster lines
are between the target lines on the cluster target.
Make sure the joystick tab remains at the bottom.
4.4.2.16 Make sure the beam fits into the square of the can
target, remove the can target.
4.4.2.17 Your image should now be centered in the
photocell. Using your pliers, gently pull on the
left and right of the collector bracket. The image
in your photocell should look like a circle with
wings on each side. Make sure your "wings"
don't protrude from your photocell.
4.4.2.18 Slide the metal plate with the high-density lines
into place.
4.4.2.19 Attach socket test probe to test pin #1 on the
signal processor board. Check signal
oscilloscope, signal should still be between 2.0v-
3.0v.
4.4.2.20 Slide the red pattern window into place and
verify that the pattern has a closed diamond.
4.4.2.21 Next slide the red pattern window back and forth
making sure that the unit can read the code
located on the left edge of the red pattern
window.
4.4.2.22 Put drop of LOCTITE 406 on joystick where it
comes out the back of the collector. Put drop of
accelerator 712 on same spot as 406.
4.4.2.23 Cut the part of the joystick that protrudes from
the back of the collector as flush as possible.
4.4.2.24 Follow Steps 4.3.2 for decode board install.
4.4.2.25 Follow Steps 4.1.2 for case assembly.
FIGURE 4.4-1
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