Kodak DirectView CR-825, DirectView CR-850 Adjustments
© EASTMAN KODAK COMPANY, 2005 HEALTH GROUP
Confidential
Restricted
Information
{Adjust/Replace}{Production}{Health Group}{ExternalAndInternal}
ADJUSTMENTS AND REPLACEMENTS
for the
Kodak DirectView CR 825/850 SYSTEMS
Service Codes: 5634, 4825
Important
Qualified service personnel must do these procedures.
Publication No. AR4825-1
10DEC05
Supersedes AR4825-1
21JUL04
H177_0500AC
ADJUSTMENTS AND REPLACEMENTS
10DEC05
AR4825-1
Page
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PLEASE NOTE The information contained herein is based on the experience and knowledge relating to the
subject matter gained by Eastman Kodak Company prior to publication.
No patent license is granted by this information.
Eastman Kodak Company reserves the right to change this information without notice, and
makes no warranty, express or implied, with respect to this information. Kodak shall not be
liable for any loss or damage, including consequential or special damages, resulting from any
use of this information, even if loss or damage is caused by Kodak’s negligence or other fault.
This equipment includes parts and assemblies sensitive to damage from electrostatic
discharge. Use caution to prevent damage during all service procedures.
Table of Contents
Description Page
Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INTERLOCK SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
TOP COVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
GALVO BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
GALVO ROTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FOLD MIRROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
COLLECTOR AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INTERMEDIATE PLATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
CAM SENSOR BOARD A8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
CAM MOTOR AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
SLED CAM FOLLOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
CLAMP BAR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
CASSETTE END STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
REAR CASSETTE SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
EXTRACTION BAR HOME POSITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
PLATE POSITIONING AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
RIGHT and LEFT PLUSH AY - Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
LEFT PLUSH AY - Vertical Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
INTERNAL BAR CODE READER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
CASSETTE LOAD CRADLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Replacements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
GALVO and BLOCK AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
OPTICS MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
PMT/DAS BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
PMTs and COLLECTOR AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
ADJUSTMENTS AND REPLACEMENTS
10DEC05
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FOLD MIRROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
CASSETTE HANDLING AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
CAM MOTOR AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
HOOK YOKE AY and HOOK YOKE BEARING. . . . . . . . . . . . . . . . . . . . . . . . . . . 103
IDLER ROLLER AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
CASSETTE DRIVE AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
CASSETTE DRIVE ROLLERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
CASSETTE DRIVE MOTOR AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
LEFT PLUSH AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
RIGHT PLUSH AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
EXTRACTION BAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
SLOW SCAN AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
EXTRACTION BAR REFERENCE SENSOR S9 . . . . . . . . . . . . . . . . . . . . . . . . . . 119
PLATE PRESENT SENSOR S5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
COIL BOARD A7, ENCODER and SLOW SCAN ROTOR . . . . . . . . . . . . . . . . . . 122
PLATE POSITIONING AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
ERASE LAMP AY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
CPU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
HARD DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Additional Service Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Opening and Removing COVERS and PANELS . . . . . . . . . . . . . . . . . . . . . . . . . 139
Restoring the Purchased Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Restoring the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Setting the Laser Calibration Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Calibration for the CR 825/850 SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
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ADJUSTMENTS AND REPLACEMENTS Adjustments
Section 1: Adjustments
INTERLOCK SWITCH
Adjustment Specification
Purpose: To place the INTERLOCK ACTUATOR in the correct position.
Specification: The INTERLOCK ACTUATOR enters the center of the INTERLOCK
SWITCH when you close the FRONT DOOR.
Special Tools: None
Prerequisites:
None
To Check:
Caution
Dangerous Voltage
INTERLOCK
SWITCH
INTERLOCK
ACTUATOR
FRONT DOOR
H194_0043ACA
H194_0043AC
1 Open the FRONT DOOR.
2 Close the FRONT DOOR and observe
the INTERLOCK ACTUATOR entering
the INTERLOCK SWITCH.
3 Check that the INTERLOCK
ACTUATOR enters the center of the
INTERLOCK SWITCH.
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To Ad j u st :
INTERLOCK
ACTUATOR
Postrequisites:
2 SCREWS
FRONT DOOR
H194_0043ACB
H194_0043AC
1 Open the FRONT DOOR.
2 Loosen the 2 SCREWS.
3 Move the INTERLOCK ACTUATOR up
or down to the correct position.
4 Tighten the 2 SCREWS.
None
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ADJUSTMENTS AND REPLACEMENTS Adjustments
TOP COVER
Adjustment Specification
Purpose: To place the TOP COVER in the correct position.
Specification: When the TOP COVER is closed, the 2 PINS seat into the center of the
holes in the CROSSBRACE.
Special Tools: None
Prerequisites:
1 Adjust the INTERLOCK SWITCH.
To Check:
1 Open the FRONT DOOR.
TOP COVER
2 PINS
2 Open the TOP COVER.
3 Close the TOP COVER slowly and
observe the 2 PINS entering the holes
in the CROSSBRACE.
H194_0044ACA
H194_0044AC
CROSSBRACE
holes
4 Check that the 2 PINS seat into the
center of the holes in the
CROSSBRACE.
ADJUSTMENTS AND REPLACEMENTS Adjustments
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To Ad j u st :
5 LOWER SCREWS
H194_0044ACB
H194_0044AC
TOP COVER
2 PINS
CROSSBRACE
holes
1 Open the TOP COVER.
2 Loosen the 5 LOWER SCREWS until
the TOP COVER can be moved with a
small force.
3 Close the TOP COVER.
4 Move the TOP COVER left or right until
the 2 PINS seat into the center of the
holes of the CROSSBRACE.
5 Can you make the adjustment?
No Yes
Continue with
Step 6.
Advance to
Step 10.
6 Remove the REAR PANEL.
7 Loosen the 3 SCREWS.
8 Move the TOP COVER left or right until
the 2 PINS seat into the center of the
holes of the CROSSBRACE.
3 SCREWS
Postrequisites:
None
H194_0051ACA
H194_0051AC
9 Tighten the 3 SCREWS.
Important
Do not move the TOP COVER left or right
10 Carefully lift the TOP COVER.
11 Tighten the 5 LOWER SCREWS.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
GALVO BOARD
Adjustment Specification
Purpose: To set the AUTOMATIC GAIN CONTROL (AGC), and the “Velocity Profile”.
Specification: • The AGC voltage on the “Galvo Plot” screen is 8.2 V DC - 11.9 V DC
with the correct “Velocity Profile”.
• No “Ringin g” in the “Wave Form”.
Special Tools: • TOOL TL-5726
• DIGITAL VOLTAGE METER (DVM) TL-3386
Prerequisites:
1 Do Setting the Laser Calibration Voltage.
To Check:
Caution
Dangerous Voltage
1 Energize the system.
Important
You must have a “Session ID” for access to “Service Functions” and “Diagnostics”. See
SERVICE BULLETIN 843.
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2 At the main menu, touch:
• [Ser vice Functions]
• [Diagnostics]
• [Galvo Plot]
• [Star t Galvo Plot]
• [35 x 43]
Correct
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Not Correct
Important
The GALVO stops after 500 cycles. If necessary to start again, select “Star t Galvo Plot”.
3 Check:
• no “Ringing” in the “Wave Form”
• “AGC” is at 8.2 V DC - 11.9 V DC
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To Ad j u st :
Laser Warning
This equipment uses a visible red laser. Prevent direct exposure to the beam from the laser.
1 Do Step 1 - Step 8 of the GALVO ROTATION procedure.
2 Remove the REAR PANEL.
TP7
R112
TP6
TP3
GALVO
BOARD
TP10
R112
TP1
R2
TP13
C55
TP17
61
TP2
TP16
TP4
TP11 R1
TP14
TP9
TP15
TP12
TP5
H194_1408BCB
H194_1408BC
4 SCREWS
3 On the GALVO BOARD, use the DVM TL-3386 set to V DC and connect the (+) end of
the DVM to TP13 and the (-) end of the DVM to TP1.
4 Is the GALVO BOARD new?
Yes No
Adjust R2 until the voltage on the
DVM is 10 ± 0.02 V DC.
Check that the voltage on the DVM is
between 8.2 V DC and 11.9 V DC.
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5 Touch:
• [Star t Galvo Plot]
• [35 x 43]
6 Adjust R1 until the “hook” or “ringing” is just visible on the GALVO SWEEP PROFILE.
7 Adjust R1 until the “hook” or “ringing” just disappears on the GALVO SWEEP PROFILE.
8 Touch:
• [Back]
• [Galvo Test]
• [Star t Galvo Plot]
• [35 x 43]
9 Is the “Wave Form” correct?
Yes No
Advance to Step 16. Continue with Step 10.
10 Touch:
• [Back]
• [Galvo Test]
• [Star t Galvo]
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ADJUSTMENTS AND REPLACEMENTS Adjustments
11 Set the “Amplitude” to “3000”.
TP1
TP13
H194_0045ACA
H194_0045AC
R112
TP1
TP17
16
TP2
TP16
R2
R1
12 Use the DVM TL-3386 set to V AC and
connect the (+) end of the DVM to
TP10
R112
R2
TP13
C55
TP4
R1TP11
TP14
TP9
TP15
TP12
TP5
TP7
R112
TP6
TP13 and the (-) end of the DVM to
TP1.
Important
• The GALVO must be “sweeping” when
you adjust R112.
• The lowest value is normally 10 - 25 mV
AC.
TP3
13 Adjust R112 until the voltage on the
DVM is at the lowest value.
GALVO BOARD
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ADJUSTMENTS AND REPLACEMENTS Adjustments
14 Touch:
• [Stop Galvo]
• [Back]
• [Galvo Plot]
• [Star t Galvo Plot]
• [35 x 43]
15 Is the “Wave Form” correct?
Yes No
Continue with Step 16.Do Step 3 - Step 15 again.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
PMT COVER
5 SCREWS
TOOL TL-5726
3.17 mm
(0.125 in.)
laser beam
2 BEAM
CLIPPERS
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GALVO
FOLD
MIRROR
COVER
H194_1418HCA
H194_1418HC
16 Lift the TOP COVER.
17 Remove:
• 5 SCREWS
• PMT COVER
• FOLD MIRROR COVER
• 6 SCREWS
• COVER
18 Install the TOOL TL-5726.
SCREW
6 SCREWS
COVER
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19 Touch [Laser On].
20 Is the laser beam 3.17 mm (.125 in.) on the 2 BEAM CLIPPERS?
Yes No
Continue with
Step 21.
Important
• Rotating the GALVO centers the laser beam.
• Adjusting R2 makes the laser beam shor ter or longer.
a. Loosen the SCREW.
b. Rotate the GALVO until the laser beam is in the center.
c. Tighten the SCREW.
d. Adjust R2 on the GALVO BOARD until the laser beam is
3.17 mm (.125 in.) on the 2 BEAM CLIPPERS.
e. Continue with Step 21.
21 Touch:
• [Stop Galvo]
• [Back]
• [Galvo Plot]
• [Star t Galvo Plot]
22 Check that the “Velocity Profile” is
correct for all sizes of CASSETTE.
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23 Is the “Velocity Profile” correct?
Yes No
Continue with
Step 25.
a. Adjust R1 until the “Velocity Profile” is
correct.
b. Do Step 19 - Step 23, or use
diagnostics to solve the problem.
24 Do GALVO ROTATION.
25 Install:
• REAR PANEL
• FOLD MIRROR COVER
• PMT COVER
• 5 SCREWS
• COVER
• 6 SCREWS
Postrequisites:
1 Adjust the FOLD MIRROR.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
GALVO ROTATION
Adjustment Specification
Purpose: To set the GALVO home position.
Specification: The laser beam displays on the wide RING of the F-THETA LENS.
Special Tools: None
Prerequisites:
1 Do Setting the Laser Calibration Voltage.
2 Adjust the GALVO BOARD.
To Check:
Press the Escape key to dismiss the video after viewing.
Laser Warning
• This equipment uses a visible red laser. Prevent direct exposure to the beam from the
laser.
• Dangerous Voltage
1 De-energize the system.
2 Remove the FRONT DOOR and RIGHT PANEL.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
OPTICAL AY
Caution
Do not cause damage to the OPTICAL AY.
6 SCREWS
3 Remove:
• 6 SCREWS
hen
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Class
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A
• COVER
4 Loosen the THUMBSCREW.
5 Move the LASER FILTER into the
service position.
H194_1412GCA
H194_1412GC
Class 3B
open and interlocks defeated.
void exposure to beam
A
INTERLOCK KEY
Laser radiation w
COVER
THUMBSCREW
hen
.
service
position
LASER FILTER
H194_0049ACA
H194_0049AC
6 Tighten the THUMBSCREW.
Caution
Dangerous Voltage
7 Energize the system.
8 Install the INTERLOCK KEY.
Important
You must have a “Session ID” for access to
“Service Functions” and “Diagnostics”. See
SERVICE BULLETIN 843.
9 At the main menu, touch:
• [Ser vice Functions]
• [Diagnostics]
• [Galvo Test]
• [Laser on]
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ADJUSTMENTS AND REPLACEMENTS Adjustments
10 Check that the laser beam displays on
F-THETA LENS
laser
beam
the wide RING of the F-THETA LENS
and the reflected light just touches the
upper RING of the F-THETA LENS.
wide
CORRECT NOT CORRECT
RING
H196_2700GCA
H196_2700GC
F-THETA LENS
To Ad j u st :
Press the Escape key to dismiss the video after viewing.
laser
beam
WALL
Class 3B Laser radiation when
open and interlocks defeated.
Avoid exposure to beam.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
wide RING
F-THETA LENS
OPTICAL AY
laser
beam
GALVO
Caution
• Do not cause damage to the OPTICAL
AY.
• If the laser beam is adjusted below the
wide RING, the error code 1602 occurs
during the Calibration for the Scan
procedure.
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CLAMP
1 Loosen the SETSCREW in the CLAMP.
2 Rotate the GALVO in the CLAMP until
the laser beam is on the wide RING of
H194_1415ACA
H194_1415AC
SETSCREW
the F-THETA LENS and the reflected
light just touches the upper RING of the
F-THETA LENS.
Note
It may be helpful to place a piece of PAPER
on top of the F-THETA LENS. Rotate the
GALVO until the laser creates a bright spot
on the right side, then rotate the GALVO in
the opposite direction until the bright spot
just disappears.
3 Tighten the SETSCREW in the CLAMP.
4 Do Step 16 - Step 23 of the adjustment procedure for the GALVO BOARD again.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
5 Touch:
• [Stop Galvo]
• [Back]
• [Galvo Plot]
• [Star t Galvo Plot]
• [35 x 43]
6 Is the “Wave Form” correct?
Yes No
Continue with Step 7. Do the adjustment for the GALVO BOARD again or use
diagnostics to solve the problem.
Note
It may take 3 cycles of the adjustments to correctly position the GALVO.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
7 Loosen the THUMBSCREW.
8 Move the LASER FILTER into the
operation position.
H194_1413GCA
H194_1413GC
6 SCREWS
9 Tighten the THUMBSCREW.
10 Install:
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• COVER
• 6 SCREWS
COVER
THUMBSCREW
operation
Class 3B Laser radiation when
open and interlocks defeated.
Avoid exposure to beam.
LASER FILTER
position
Postrequisites:
1 Do the adjustments:
• FOLD MIRROR
• GALVO BOARD
2 Do:
• Calibration for the CR 825/850 SYSTEM
• Kodak DirectView TOTAL QUALITY TOOL for CR SYSTEMS
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ADJUSTMENTS AND REPLACEMENTS Adjustments
FOLD MIRROR
Adjustment Specification
Purpose: To align the laser beam.
Specification: The laser beam is in the center of each of the SLOTS on the
TOOL TL-5726.
Special Tools: TOOL TL-5726
Prerequisites:
None
To Check:
Press the Escape key to dismiss the video after viewing.
Laser Warning
• This equipment uses a visible red laser. Prevent direct exposure to the beam from the
laser.
• Dangerous Voltage
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ADJUSTMENTS AND REPLACEMENTS Adjustments
1 De-energize the system.
4 SCREWS
2 Open the TOP COVER.
PMT COVER
3 Remove:
• FRONT DOOR and RIGHT PANEL
• 4 SCREWS
• PMT COVER
H194_1406GCB
H194_1406GC
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ADJUSTMENTS AND REPLACEMENTS Adjustments
OPTICAL AY
Caution
6 SCREWS
Do not cause damage to the OPTICAL AY.
4 Remove:
H194_1412GCA
H194_1412GC
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• 6 SCREWS
• COVER
5 Loosen the THUMBSCREW.
6 Move the LASER FILTER into the
service position.
7 Tighten the THUMBSCREW.
Caution
Class 3B Laser radiation when
open and interlocks defeated.
Avoid exposure to beam.
COVER
THUMBSCREW
service
position
LASER FILTER
Dangerous Voltage
8 Energize the system.
INTERLOCK KEY
H194_0049ACA
H194_0049AC
9 Install the INTERLOCK KEY.
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ADJUSTMENTS AND REPLACEMENTS Adjustments
SCREW HEAD
FRAME
TOOL TL-5726
TOOL TL-5726
H194_1406BCA
FRAME
H194_1406BC
Important
The small SLOTS of the TOOL TL-5726 are toward the laser beam. TOOL TL-5726 must be
positioned correctly under the SCREW HEAD.
10 Place the TOOL TL-5726:
• against the FRAME
• under the SCREW HEAD
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ADJUSTMENTS AND REPLACEMENTS Adjustments
TOOL
Important
For systems with Software Version ≥ 4.1,
SLOTS
you must have a “Session ID” for access to
“Service Functions” and “Diagnostics”. See
SERVICE BULLETIN 843.
11 At the main menu, touch:
• [Ser vice Functions]
• [Diagnostics]
• [Galvo Test]
• [Treshold]
• [Star t Galvo]
12 Set the “Amplitude” to “3000”.
13 Check that the laser beam is in the
center of the small SLOTS in the TOOL
TL-5726.
H194_0046GCA
H194_0046GC
laser beam
ADJUSTMENTS AND REPLACEMENTS Adjustments
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To Ad j u st :
laser beam
A
B
C
D
correct
not correct
1 Deter mine the position of the laser
beam. See the graphic for the
differences.
H194_1407GCA
H194_1407GC
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ADJUSTMENTS AND REPLACEMENTS Adjustments
ADJUSTING SCREW B
ADJUSTING SCREW A
SCREW A
SCREW C
ADJUSTING SCREW C
H194_0047ACA
H194_0047AC
SCREW B
2 To adjust the laser beam to the center of the SLOTS in the TOOL TL-5726:
Item Laser Beam Do:
A Left end tilted up or
down
a. Loosen the SCREW A.
b. Rotate the ADJUSTING SCREW A counterclockwise to
move the left end of the laser beam down.
c. Rotate the ADJUSTING SCREW A clockwise to move
the left end of the laser beam up.
B Right end tilted up
or down
d. Tighten the SCREW A.
a. Loosen the SCREW B.
b. Rotate the ADJUSTING SCREW B counterclockwise to
move the right end of the laser beam down.
c. Rotate the ADJUSTING SCREW B clockwise to move
the right end of the laser beam up.
d. Tighten the SCREW B.
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