Essilor ALM 700 User manual

Maintenance manual
Auto Lensmeter
ALM700
V1 –10/2016

Contents
1. External diagram ........................................................................................................................... 3
2. Exploded diagram .......................................................................................................................... 4
3. Wiring diagram .............................................................................................................................. 5
4. Assembly and disassembly of external facing .............................................................................. 6
4.1. Removal of back cover................................................................................................................ 6
4.2. Removal of LCD assy ................................................................................................................. 7
4.3. Removal of top cover .................................................................................................................. 7
4.4. Removal of light receiving unit cover ....................................................................................... 7
5. Replacement of parts ..................................................................................................................... 8
5.1. Control board assy. .................................................................................................................... 8
5.2. Printer Control Board Assy. and Printer ................................................................................... 8
5.3. LCD assy..................................................................................................................................... 9
5.4. Switching power supply........................................................................................................... 10
5.5. Power supply inlet.................................................................................................................... 10
5.6. Power supply switch ................................................................................................................ 11
5.7. Memory switch board assy. ..................................................................................................... 11
5.8. Marking pen, retention pin, marking / Retention unit assy. ................................................ 12
5.9. Light projecting unit assy........................................................................................................ 13
5.10. Light receiving unit assy. .................................................................................................... 13
5.11. Marketing / Retention latch ................................................................................................ 14
5.12. Front cover............................................................................................................................ 14
5.13. PD plate assy. ALM700 ....................................................................................................... 15
5.14. Nose pad assy. ...................................................................................................................... 15
5.15. LP lever................................................................................................................................. 15

1. External diagram
Utility box
PD plate assy.
Utility box cover
Top cover
Back cover
Nose pad assy.
LP lever
Printer cover unit
Light receiving unit
cover
Front cover
Power supply switch
Power supply inlet

2. Exploded diagram
Marking / retention
latch
LCD assy.
Light projecting
unit assy.
Marketing / Retention
unit Assy.
Nose pad assy.
Light receiving unit
assy.
Switching power supply
Printer
assy.
Terminal unit assy.
LP lever
Mechanical
unit assy.
Control
board assy.
PD plate assy. (ALM700)

3. Wiring diagram
Pilot LED board assy.
CN508
21
4 1
CN507
Flat cable
Flat cable
Flat cable
Touch panel
LCD
LCD assy.
18
1
1
33
CN2
CN1
1
33
CN501
18
1
CN505
LCD replay board assy.
20 1
CN503
20 1
CN504
Flat cable
Flat cable
Red
Brown
Measurement light board assy.
UV light board assy.
To printer
Control board assy. (only for ALM700
Flat cable
Red
Brown
14
PD assy.
PD sensor board assy.
PD position sensor board
Memory switch
board assy.
CMOS camera board
To terminal unit FG
(green/yellow)
Printer control
board assy.
To RS-232C
1/ 2/ 3
Brown / Red / Orange
Switching power supply
Power supply switch
To CN6
Power supply inlet
Brown (L)
2 / 3 / 5
Brown / Red / Orange
FG (green/ yellow)
Light blue (N)
To printer FG CN203 (green/yellow)
To main unit assy.
FG (green/yellow)
RS-232C
Terminal unit assy.
3
1
Brown (L)
Light blue (N)

4. Assembly and disassembly of external facing
Turn off the power and unplug the power cord before disassembling the device.
4.1. Removal of back cover
1) Remove the LP lever and printer cover.
The screw fixing the LP lever is placed under
the screw hiding (refer to ‘5-15 LP Lever’).
The LP lever is removed by unscrewing the
screw.
The printer cover is removed by ①opening it
and ②pressing it down.
The cover is unhooked as shown ③.
Cover is removed
2) Remove the utility box.
Remove the utility box by removing its cover and unscrewing the
screws (cross-recessed bind head tapping screw 3×8 black) shown on
the Fig. 1.
*cover is removed [Fig.1]
3) Unscrew the screws fixing the back cover.
Unscrew 2 screws (cross-recessed bind screw M3×8)on the
upper right and left on the
Fig. 2.
Unscrew 2 screws placed on the right and left sides of the
backside of the lens plate on the Fig. 3
* The screws can be removed by pulling out the lens plate all the
way. (Cross-recessed bind screw M3×8)
Unscrew 2 screws on the Fig. 4. (Cross-recessed bind screw
M3×8)
Unscrew 3 screws on the bottom of the device on the
Fig. 5. (Cross-recessed bind screw M3×8)
4) Remove the back cover to the direction of the arrow on the Fig.
6.
[Fig.2]
[Fig.3]
[Fig.4]
[Fig.5]
[Fig.6]
Back cover
LP lever
Priter cover unit
Screw hiding

4.2. Removal of LCD assy
1) Remove 2 harnesses connected to the control board Assy.
from the LCD Assy. (CN4 and 5: flat cables): Fig. 1
* CN5 has the lock function of the harness. Remove the
harness from the control board Assy. by unlocking it.
[Fig.1]
Locked
Unlocked
* Move the lock units on both right
and left sides at the same time at
the time of unlocking them.
[Fig.2]
Unscrew the screw (cross-recessed pan head screw M3×8)
fixing the GND harness located behind the lens holder by
lowering the holder.: Fig. 2
Remove the clip fixing the harness from the LCD Assy.: Fig. 3
2) Remove the LCD Assy. by unscrewing the screws (hexagon
socket cap low head bolt M3×6 black) fixing the LCD Assy.:
Fig. 3
[Fig.3]
4.3. Removal of top cover
Remove the top cover by unscrewing 2 screws
(cross-recessed bind screw M3×8) fixing the top cover.: Fig. 4
[Fig.4]
4.4. Removal of light receiving unit cover
Remove the lens plate by unscrewing 2 screws (cross-recessed bind screw M3×8 black) on both sides of
right and left.: Fig. 5
Remove the lens holder. The light receiving unit cover is fixed with the click. It can be removed by
lifting A part of the cover.: Fig. 6
[Fig.5]
[Fig.6]
LCD assy.
Control board assy.
Fixing screw : 4
Clip: 3
Top cover
Lens holder
Lens plate
Lens stand
A
Click : right and left
Light receiving unit
cover

5. Replacement of parts
5.1. Control board assy.
1) Remove the back cover. (Refer to ‘4. Assembly and
Disassembly of External Facing’.)
2) Remove all of the connectors connected to the board. (Refer
to ‘3. Wiring Diagram’.)
3) Unscrew the screws (cross-recessed bind screw M3×5) and
spacers (resin) fixing the board.
4) Place the back cover after replacing it to the new board and
confirming that all of the connecters are placed.
Do not pull only connector forcibly at the time of disconnection.
It may cause breaking of the connector.
5.2. Printer Control Board Assy. and Printer
1) Remove the back cover.
(Refer to ‘4. Assembly and Disassembly of External Facing’.)
2) Disconnect the harness on the side of control board Assy. which
connects the control bard Assy. and printer control board Assy.
3) Replace the printer by unscrewing 2 screws (cross-recessed bind
head tapping screw 3×10 black) fixing it :Fig. 1
4) Replace the thermal head of the printer
Disconnect the harness on the side of the printer control board
Assy. which connects the thermal head and printer control board
Assy. :Fig. 2
Unscrew the screw (cross-recessed bind head tapping screw 2×8)
fixing the thermal head, replace the thermal head and connect the
harness to the printer control board Assy. :Fig. 3
5) Replace the printer control board Assy.
Disconnect the harness on the side of the printer control board
Assy. which connects the thermal head and printer control board
Assy.: Fig. 2
6) Replace the paper feed roller of the printer cover. Replace the roller
by unscrewing the screws (cross-recessed bind head tapping screw
2.6×6) fixing it. :Fig. 4
[Fig.1]
[Fig.2]
[Fig.3]
[Fig.4]
Spacer
Screw
Control board assy.
Printer assy.
Printer control
board assy.
Thermal head
Paper feed roller
Printer control
board assy.

5.3. LCD assy.
Remove the LCD Assy. (Refer to ‘4-2 Removal of LCD Assy.)
Remove the LCD bottom cover by unscrewing the screws (cross-recessed bind head tapping screw 3×8) after
removing the screw hidings.
1) Replacement of LCD Relay Board Assy.
Disconnect the harness connected to the LCD relay board
Assy. Replace it by unscrewing 4 screws (cross-recessed bind
screw M3×5 black) fixing the board.
2) Replacement of LCD
Unscrew 4 screws (cross-recessed bind head tapping screw
3×10) fixing the LCD BKT. :Fig. 1
Replace it by unscrewing 4 screws (cross-recessed bind head
tapping screw 3×8) fixing the LCD. :Fig. 2
[Fig.1]
[Fig.2]
3) Replacement of LCD Top Cover/ Protection Plate/ LCD unit
(ALM700).
The LCD top cover, protection plate and operation switch
board Assy. cannot be replaced separately. They can be only
replaced as a set.
Remove and replace the LCD BKT in the manner of 2).
In case of ALM700, LCD top cover/ protection plate/ operation
switch board Assy. cannot be replaced because it is touch
panel. It can be replaced as LCD unit.
4) In case of replacing the LCD top cover/ protection plate (with
touch panel), it is necessary to adjust the touch panel.
The adjustment can be performed in ‘6. Touch Panel Calib.’ on
Menu in the dealer mode.
LCD bottom cover
LCD relay board
LCD BKT

Match the switch position and coordinates of touch panel.
Touch
There are 4 areas to touch in order.
It is completed after touching 4 areas.
(After adjustment) >
5.4. Switching power supply
Remove the back cover.
(Refer to ‘4. Assembly and Disassembly of External Facing’.)
Disconnect the harnesses connected to the switching power
supply.
Replace it by unscrewing 2 screws (cross-recessed bind screw
M3×5) fixing the switching power supply.
5.5. Power supply inlet
Remove the back cover. (Refer to ‘4. Assembly and Disassembly
of External Facing’.)
Disconnect the harnesses connected to the power supply inlet.
Unscrew 2 screws (cross-recessed flat screw M3×5).
Pull out the power inlet and replace the harnesses.
( ※ Press the connector on the side of power inlet when pulling
out the power inlet.)
Switching power supply
Power supply inlet

5.6. Power supply switch
Remove the back cover.
(Refer to ‘4. Assembly and Disassembly of External Facing’.)
Remove the terminal unit Assy. by unscrewing 2 screws (cross-
recessed bind screw M3×5) fixing the Assy.
( ※ Do not disconnect the harnesses.): Fig. 1 and 2
Remove the power supply switch by pressing the click. :Fig. 3
Replace the harnesses of the power supply switch and power
supply switch.
[Fig.3: replacement of harnesses]
[Fig.1]
[Fig.2]
5.7. Memory switch board assy.
Remove the front cover in the manner of ‘5-13 Front Cover’. Unscrew 2 crews (P tight 3×8) fixing the memory
switch board Assy
Front cover is removed
Power supply switch
2 clicks : top and bottom
Front cover
Mechanical unit
Memory switch board
assy

5.8. Marking pen, retention pin, marking / Retention unit assy.
1) Replacement of marking/ retention unit Assy.
-Removal
Unscrew 2 screws (cross recessed binding screw M3×10 black) fixing the marking/ retention unit Assy.
-Installation
Install the marking/retention unit Assy. so that the lens
retention pin is positioned roughly in the center of the light
receiving unit.: Fig. 4
Check the marking position by taking a measurement of
cylinder lens of the maintenance lens set.
[Fig.4]
Adjustment when marking is not on fiducial line
Loosen 2 screws (hexagonal socket cap bolt M2×6 black)
fixing the marking unit, adjust it so as that the marking is
on the cylindrical lens in the maintenance lens set and fix
the marking unit. :Fig. 5
[Fig.5]
<Confirmation procedure>
Perform alignment by placing +5D cylindrical
lens with contacting with the lens plate in the
direction of AX 180. At this time, adjust the
marking unit so as that the marking is on the
fiducial line.
Then, perform alignment by placing +5D
cylindrical lens with contacting
with the lens plate in the direction of AX 90
without erasing the marking. At this time, the
marking in the middle should be on the fiducial
line.
2) Replacement of Marking Pen
Press the marking pen as shown below and rotate it 90
degrees. Insert the new pen in the original position.
3) Replacement of Lens Retention Pin
Unscrew 2 screws (cross-recessed bind screw M3×10
black) fixing the marking/ retention unit Assy. :Fig. 1
Unscrew 3 screws (cross-recessed bind head tapping
screw 2×8 black) fixing the lens retention unit. Replace
the pins by disassembling the lens retention unit. :Fig. 2
and 3
[Fig.1]
[Fig.2]
[Fig.3]
Marking pen
Cross recessed bind head
tapping screw 2x8 black
Lens retention pin
Compression spring

5.9. Light projecting unit assy.
Remove the back cover and top cover.
(Refer to ‘4. Assembly and Disassembly of External Facing’.)
1) Replacement of Measurement Light Board Assy.
Unscrew 2 screws (cross-recessed bind screw M2×L6 black)
fixing the measurement light board Assy., and place the
replacement measurement light board Assy. roughly in the
center.
After that, place each cover and perform calibration.
(Refer to ‘8. Calibration’.)
[Fig.1]
2) Replacement of Light Projecting Unit Assy.
Unscrew 2 screws (cross-recessed bind screw (P3) M3×10
black), and place the replacement light projecting unit
Assy. temporarily. :Fig. 2
Then, align with the optical axis of the light receiving
Assy. by using 4 M3 set screws.
【Adjustment Criteria】
Place the perforated screen on the light receiving unit
Assy. Confirm visually that the scribing line and light
from the light projecting unit match. :Fig. 3
[Fig.2]
5.10. Light receiving unit assy.
Remove the light receiving unit cover.
(Refer to ‘4-4. Removal of Light Receiving Unit Cover’.)
Remove 3 screws (hexagonal socket cap low head bolt M3×6)
fixing the light receiving unit and harnesses connected, and
place the replacement light receiving unit Assy. roughly in
the center.
Light projecting unit assy.
Lens stand aperture (φ6)
Perforated screen
Scribing line
ALM700: φ13
Perforated screen
Light receiving unit assy.
Light receiving unit assy.

5.11. Marketing / Retention latch
Remove the back cover. (Refer to ‘4. Assembly and
Disassembly of External Facing’.)
Remove the spring holding the marking/ retention unit Assy.
:①
Unscrew 2 screws (cross-recessed bind screw M3×5) fixing
the plate which the marking/ retention latch is mounted. :②
Hold both sides of the marking/ retention latch, and remove
it to the direction of arrow. :Fig. 2
[Fig.2]
[Fig.1]
5.12. Front cover
Remove the back cover, top cover and LCD Assy.
(Refer to ‘4. Assembly and Disassembly of External Facing’.)
Then, remove the LCD retention BKT by unscrewing 4
screws (cross-recessed bind screw M4×6) fixing it. :Fig. 1
Remove the FGs screwed on measurement light board Assy.
(CN9), CMOS camera board (CN3) and mechanical unit
frame which are connected to the control board Assy. (Refer
to ‘3.Wiring Diagram’ ): Fig. 2
Remove the marking/ retention Assy. and PD plate. :Fig. 3
Replace the front cover by removing the mechanical unit,
terminal unit Assy., power supply switch, rubber legs and
bottom plate which are fixed on the front cover in order.
[Fig.3]
[Fig.1]
[Fig.2]
Marking/Retention latch
LCD rentention BKT
Marking/Retention assy.
PD plate
Mechanical unit

5.13. PD plate assy. ALM700
Remove the back cover (Refer to ‘4. Assembly and Disassembly of External Facing’.)
Disconnect the harness of the control board which is connected to the PD Assy. (Only for ALM700, control board
side: CN11)
Remove the marking/ retention unit Assy.
Remove the lens plate and replace it with new one after unscrewing both sides of 2 screws (cross-recessed bind
screw M3×8 black).
It is necessary to adjust the lengthwise position at the time of attaching the marking/ retention unit Assy. Attach
the marking/ retention unit so that the lens retention pin is positioned in the center of the light receiving unit.
Check the marking position by measuring the cylinder lens of the maintenance lens set. Confirm that the
marking matches with the fiducial of cylindrical lens (Refer to ‘5-8 Marking Pen, Retention Pin, marking/
Retention Unit Assy.’)
5.14. Nose pad assy.
Remove the insulation stickers and unscrew 2 screws (low head precision screw FX-0230EB) fixing the nose pad
Assy. after pulling out the lens plate.
(The insulation sticker is included in the repair parts of “nose pad Assy.”.) Note: The screws are the special ones.
Please do not loose them.
5.15. LP lever
Remove the screw hiding on the PD lever by inserting the skinny
tool such as tweezers in the hole for removing the screw hiding.
After removing the screw hiding, replace the LP lever by
unscrewing 1 screw fixing the LP lever (cross-recessed bind screw
M3×8) and pulling it out.
At the time of reassembling, insert the LP lever with attention to
the direction because D cut is provided at the shaft.
Marking/Retention
Unit assy.
PD plate assy
(ALM700)
LP lever
Screw hiding
D cut
LP lever
Cross-recessed bind screw
M3x3
Screw hiding
Hole for removing
screw hiding

6. Troubleshooting
6.1. Type
No.
Display
Condition
Error Content
1
Initial Error
Abnormality of
device
Any measurement value is more than ‘±0.25’ when power is turned
on.
・In case that the lens is set when power is turned on.
・Measurement abnormality because of dust or unnecessary
light etc. when power is turned on.
2
Paper Empty
No printer paper
3
Printer Cover Opened
Printer is opened.
4
Printer Overheated
Printer head is overheated.
5
EEPROM Failure
Abnormality of memory
6
Sensor Error
Abnormality of CMOS sensor
7
※ Error * * *
(100 -163)
Abnormality of electronic parts
8
SPH Over
Abnormality of
measurement
SPH measurement value exceeds the upper limit of
measurement range
9
CYL Over
CYL measurement value exceeds the upper limit of
measurement range
10
Prism Over
Prism measurement value exceeds the upper limit of
measurement range
11
ADD Over
ADD measurement value exceeds the upper limit of
measurement range
12
Measurement Error
Abnormality of
image processing
Abnormal light receiving image because of dust, scratch on lens or
unnecessary light etc. (Measurement light does not go into light
receiving sensor normally.)
13
Measurement light LED does not light up.
14
Center Error
Unexpected light receiving image because of unnecessary light
etc.
15
“Err” is displayed on
display area of UV
transmittance
measurement value
Abnormality of
UV transmittance
measurement
Failed to control measurement at the time of UV transmittance
measurement

6.2. Error handing procedure
1) “Initial error”
In case that any measurement value (SPH, CYL or Prism) is more than ‘±0.25’ when the power is turned
on.
In case that the measurement image is abnormal when the power is turned on.
2) “Paper empty”
In case that there is no printer paper or paper is not set appropriately.
« Initial error » is displayed
Lens is set when power is
turned on.
Cycle the power after removing the lens.
Lens under lens stand is dirty.
Wipe the lens with the soft cloth with
taking care not to scratch it.
Refer to ‘9-2 Optical Unit’ (‘9.
Cleaning’).
Replace the measurement light board Assy.
Refer to ‘5-9 Light Projecting Unit Assy.
Measurement light lights on.
Evaluate measurement image.
【Refer to ‘7. Evaluation of Measurement Image’.
Yes
Yes
No
No
No
Yes
No
※ Referto‘5.4.2InstallationandReplacement
of PrinterPaper’oftheoperationmanualabout
the installationprocedureoftheprinterpaper.
Cleaning’).
Normal
« Paper empty » is displayed
Printer paper is left.
Place the papers and cycle the power.
« Paper empty » is still displayed.
No
Yes
Yes
Replace printer assy.
Replace control board.

3) “Printer empty opened”
In case that the printer cover is opened.
4) “Printer overheated”
In case that the printer thermal head is overheated at the time of print out.
No
Normal
« Printer Cover Opened» is displayed
Printer cover is set correctly.
« Printer Cover Opened » is still
displayed.
No
Yes
Yes
Replace printer assy.
Replace control board.
Set the cover correctly, and cycle
the power.
No
Normal
« Printer Overheated» is displayed
“Printer Overheated” is still displayed
even though turning power on again in more
than 5 min. after turning it off.
« Printer Overheated” is still
displayed even after replacing it.
No
Yes
Yes
Replace printer.
Replace control board.
Normal

5) “EEPROM failure”
In case that the control board has a abnormality when the power is turned on.
6) “Sensor error”
In case that the light receiving unit Assy. (CMOS camera board) or control board Assy. has an abnormality when
the power is turned on.
7) “SPH / CYL / Prism / Add over”
In case of measuring the lens which degree exceeds the upper limit of the measurement range of the device.
Take a measurement of the lens which degree is within the measurement range of the device.
No
« EEPROM Failure» is displayed
“EEPROM Failure” is still
displayed even after cycling power
Yes
Replace control . board
Normal
No
Normal
« Sensor error » is displayed
“Sensor Error” is still displayed
even after cycling the power.
No
Yes
Yes
Replace light receiving unit Assy.
Replace control board.
Normal
“Sensor Error” is still displayed
even after replacing it.
* Check the harnesses before replacing the
light receiving unit Assy.
Refer to ‘5-11 Light Receiving UnitAssy.’

8) “Measurement error”
In case that the light receiving unit of the device is exposed to the direct sunlight or strong light, or the lens under
the lens stand is dirty or scratched. Also it may be displayed if the lens to be measured is dirty or scratched.
9) “Center error”
In case of tilting the lens, this error message might be displayed at the time of measurement because a
measurement image cannot be detected.
Check the lens to be measured and take a measurement again.
« Measurement Error » is displayed
The light receiving unit
is exposed to the direct sunlight or
strong light
The lens to be measured is dirty
or scratched.
Replace the lens before taking a
measurement.
Wipe it with a soft cloth with taking care
not to scratch it. 【Refer to 9.2.】
The lens under the lens stand
is dirty.
Evaluate measurement image.
【Refer to ‘7. Evaluation of Measurement Image’.】
Yes
Yes
Yes
No
No
No
Take a measurement away from direct
sunlight and strong light.