Huvitz HLM-7000 User manual

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Service Manual
Auto Lensmeter HLM-7000

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AUTO-LENSMETER
INDEX
1. INTRODUCTION..............................................................................4
1.1. COMPONENTS LIST........................................................................................................................4
1.2. REPAIR PROCEDURE ......................................................................................................................6
1.3. CAUTIONS .....................................................................................................................................7
1.4. SOFTWARE OS VERSION ................................................................................................................7
1.5. OPTICAL SYSTEM ..........................................................................................................................7
1.6. MEASUREMENT PRINCIPLE............................................................................................................9
2. CHECKINGAND SETUP METHOD............................................10
2.1. SETUP ORDER..............................................................................................................................10
2.2. HOW TO SET ORIGIN....................................................................................................................11
2.3. HOW TO SET 12 STANDARD LENSES.............................................................................................12
2.4. HOW TO SET PRISM .....................................................................................................................13
2.5. HOW TO SET DIOPTER PRISM ......................................................................................................15
2.6. THE CALIBRATION OF THE CYLINDRICALAXIS .............................................................................17
2.7. THE TO SET PD............................................................................................................................18
2.8. THE TO SET UV ...........................................................................................................................19
2.9. DIOPTER SETTING VARIABLES LIST.............................................................................................20
2.10. HOW TO CHANGE THE CCD CAMERA ...........................................................................................21
2.11. HOW TO CHANGE THE LEDASSEMBLY........................................................................................23
2.11. HOW TO CHANGE THE LEDASSEMBLY........................................................................................24
2.12. HOW TO CHANGE THE PINHOLE HOUSING ....................................................................................25
3. REPAIR STANDARD......................................................................26
3.1. REMOVING COVER ASSEMBLY .....................................................................................................26
3.2. DISASSEMBLING LCDASS’Y.......................................................................................................28
3.3. REMOVING PRINTER ASS’Y..........................................................................................................30
3.4. REMOVING PDASSEMBLY ...........................................................................................................32
3.4.1. REMOVING PD-BAR SUBASSEMBLY ........................................................................................34
3.5. REMOVING UVASSEMBLY...........................................................................................................36
3.6. REMOVING MOVEMENT ASSEMBLY .............................................................................................38
3.6.1. REMOVING MOVEMENT(LEFT)SUBASSEMBLY........................................................................41
3.6.2. REMOVING MOVEMENT(RIGHT)SUBASSEMBLY......................................................................43
3.7. REMOVING GEAR ASSEMBLY .......................................................................................................45

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3.8. REMOVING MAIN BOARD ASSEMBLY ...........................................................................................47
3.9. REMOVING BACK BONE ASSEMBLY ................................................................................................49
3.9.1. REMOVING LENS HOUSING BONE AND LED SUBASSEMBLY...................................................51
3.9.2. REMOVING CCD CAMERAASSEMBLY .....................................................................................53
3.10. REMOVING SMPSASSEMBLYAND POWER S/WAND FUSE INLET ...........................................55
4. ELECTRICALSYSTEM ................................................................57
4.1. MAIN BOARD PCBASS’Y......................................................................................................57
4.2 ELECTRICAL BLOCK DIAGRAM.....................................................................................................58
4.3. INSPECTING SMPS......................................................................................................................59
4.3. LCD TEST..................................................................................................................................60
4.4. LED TEST..................................................................................................................................61
4.5. UVMODULETEST..................................................................................................................62
4.6. PD TEST.....................................................................................................................................63
4.7. THERMALPRINTER TEST .....................................................................................................64
5. HOW TO UPGRADE THE OS PROGRAM.................................65
5.1. INTRODUCTION............................................................................................................................65
5.2. HOW TO UPGRADE THE OS PROGRAM USING DNWAPPLICATION IN HLM MACHINES ................66

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1. Introduction
1.1. Components List
Figure 1. Components Names (I)
LCD Display
Key Button
Memory Button
Marker Lever
Printer Cover
Table Lever
Lens Table
UV Cover
Lens Holder
Lens Supporter
PD Sensor

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Figure 2. Components Names (II)
Figure 3. Components Names (III)
Power Switch
Power Connector
Foot Switch
Connector

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1.2. Repair Procedure
Power ON
1. Examining the Internal
Components First
2. Inspecting The value,
S.C.A. Prism
Checking
Abnormal
State
Cleaning the
Pinhole
Power off and on
Checking
Abnormal
State
Setup Again
Exit
Normal
State
Normal
State
Figure 4. Repair procedure flow chart

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1.3. Cautions
zAlways protect this instrument with Dust Cover after using.
zDo not vibrate or drop this instrument; it can cause damage.
zUse soft cloth or cotton swaps with alcohol when clean the 4 pinhole.
1.4. Software OS version
Software OS version will be shown on the screen if you turn on the power switch.
1.5. Optical System
Optical system resolves the features of the lens such as diopter and prism. It is
composed of emitting light part, transmit part and receiving light part: transmit part
composed of collimator lens and 4 pinhole and receiving light part composed of 2-
dimentional CMOS sensor. The followings are the components of each part:
Emitting Light Part
zOptic LED : 639nm
zBall Lens : condenses the light radiated from Optic LED.
zRubber Ring : fixes ball lens.
zFilter Paper : prevents the dispersion of light.
zPinhole : 0.2mm diameter
zLED Cylinder : combines above five components and blocks exterior light.
Transmit Part
zCollimator Lens: makes parallel light.
zPinhole : disperses parallel light into several signals. Prevent the other

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light except the light source
zMLA : micro lens array. Focus the every spot.
Receiving Light Part
z2-dimentional CMOS sensor : converts signals into digital value.
Emitting light part and receiving light part also built optical system for UV
measurement. One is composed of UV lamp and the other receives UV light. The
wavelength of the UV light is 395nm.

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1.6. Measurement Principle
Basic Principle
When there is no lens (0D state), parallel light that has transmitted the collimator
lens passes the pinhole and makes image on CCD. In case of convex lens (lens with
plus diopter), parallel light that has transmitted the collimator lens converges
through the measuring lens, passes the pinhole and then makes image on CCD. On
the other hand, in case of concave lens (lens with minus diopter), parallel light that
has transmitted the collimator lens diverges through the measuring lens and then
passes the pinholes and at last makes image on CCD.
Initial State
Concave Lens
Convex Lens

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2. Checking and Setup Method
2.1. Setup Order
When you turn on the power switch, you should hear the beep sound and see the
ROM information. At this point, press the two buttons together in the third button
and sixth button. Then, after the beep sound, your lensmeter, HLM-7000 will start in
setup and check mode. While this mode, ‘SETUP’ and ‘Temperature’ mark
will flicker in the left-upper area of the centric circles. The booting steps with
‘SETUP’ mode are as follows:
A. Turn on the power switch. Then you can hear the beep sound.
B. Press the two buttons together in the third button and sixth button.
C. Check that ‘SETUP’ mark flickers in the left-upper area of the centric
circle.
Setting and Controlling can be processed only in SETUP mode; lens, 0D prism,
diopter prism, temperature, cylinder, UV and right/left switching position of PD. To
all setting, you should convert the display step (STEP) into 0.01. In case of prism,
convert the prism display into P-B format. Display step (STEP) and prism display
format can be changed in ‘User Setup’ screen. To enter the mentioned ‘User
Setup’ screen, press the ‘CYL SETUP’( ) button for a while (2~3 seconds)
in the basic display screen.

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2.2. How to Set Origin
The steps of setting origin are as follows:
A. Press the ‘LENS SETUP’( ) button.
B. Press the ‘MEASU’ button.
C. Determine the lens to measure by using two ‘-INDEX’, ’+INDEX’ buttons
in the left side.
D. ‘D-0.01’ button and ‘D+0.01’ button by the given value in the standard
model-eye specification.
E. To save and exit, press the ‘SAVE’ button.
F. Press the ‘EXIT’ button again. And check if the diopter that has been set up
in the basic display screen is shown.
Buttons for Selecting Diopter Buttons for Calibrate Diopter SAVE button QUIT button
‘SAVE SCREEN INFORMATION’ is as follows:
If you want to return to the previous one without saving in the SAVE screen, press
the rightmost ‘PREV’ button.
: Center of the four points.
: Average distance between the center of the four points and the four points.
: Difference rate of the distances between the four points.
: Rotational error of each four points.
: Saving order and the saved diopter.

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2.3. How to Set 12 standard lenses
If the measured value is not accurate, you should set the diopter variables again by
using the standard lens-set: for all the 12 lenses in the standard lens set. Always
keep the standard lens clean out of dust or stain.
A. Set the diopter display step into 0.01.
B. Place the standard lens and move it so that ‘Marking OK’ will appear.
C. Press the ‘LENS SETUP’( ) button.
D. Press the ‘MEASU’ button.
E. Determine the lens to measure by using two ‘-INDEX’, ’+INDEX’ buttons
in the left side.
F. ‘D-0.01’ button and ‘D+0.01’ button by the given value in the standard
model-eye specification.
G. To save and exit, press the ‘SAVE’ button.
H. Press the ‘EXIT’ button again. And check if the diopter that has been set up
in the basic display screen is shown. .
I. Repeat the procedures from B to H for 12 standard lenses.
The information displayed in the ‘Setting Diopter’ screen is the same as that of
‘Setting 0D’ screen.

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2.4. How to Set Prism
If the measured value is not accurate, you should set the 2Δ, 5Δ, 10Δ lens again by
using the standard lens-set.
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12
3
4
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A. First, convert prism display format into P-B.
B. Then, press the ‘0D PRISM’ ( ) button.
C. After selecting the 2Δ lens from the standard lens set, place it on the lens cap.
D. ‘D-0.01’ button and ‘D+0.01’ button by the given value in the standard
model-eye specification.
E. Rotate it to become the Base value increase by the 0~45 degree center value.
F. Press the ‘MEASU’ button and check if ‘A0 : ’ value is changed.
G. Repeat from Step E ~ to Step F to the Base value equal to 316 ~ 360 degree
center.
H. The all spots that should be marked are as the table at the next.
I. Finally the ‘SAVE’ button to save.
J. Repeat the procedures from C to I for 5Δ lens and 10Δ lens.

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‘Prism Setup’ screen will show the following information:
Angle Prism Base
1
st 0° ~ 45° center
2
nd 46° ~ 90° center
3
rd 91° ~ 135° center
4
th 136° ~ 180° center
5
th 181° ~ 225° center
6
th 226° ~ 270° center
7
th 271° ~ 315° center
8
th 316° ~ 360° center
-PRISM : 2 Prism, 5 Prism, 10 Prism
-Idx : Display prism index currently.
-ANGLE : Display axis index currently.

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2.5. How to Set Diopter Prism
If the measured value is not accurate, you should set the -10D, -15D, -20D, -25D,
+10D, +15D, +20D, +25D lens again by using the standard lens-set.
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4
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A. First, convert prism display format into P-B.
B. Then, press the ‘DIOPT PRISM’ ( ) button.
C. After selecting the 10D lens from the standard lens set, place it on the lens
cap.
D. Move it to become the Prism base value increase by the 0~45 degree center
value and 3prism below.
E. Press the ‘MEASU’ button and check if ‘A0 : ’ first value is changed.
F. Repeat from Step D ~ to Step E to the Base value equal to 316 ~ 360 degree
center.
G. Move it to become the Prism base value increase by the 0~45 degree center
value and 3prism over.
H. Press the ‘MEASU’ button and check if ‘A0 : ’ second value is changed.
I. Repeat from Step G ~ to Step H to the Base value equal to 316 ~ 360 degree
center.
J. Finally the ‘SAVE’ button to save.
K. Repeat the procedures from C to J for -15D, -20D, -25D, +10D, +15D, +20D,
+25Dlens.

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-10D, -15D, -20D, -25D, +10D
(LOW PRISM : 3prism below / HIGH PRISM : 3prism over)
+15D, +20D, +25D
(LOW PRISM : 5prism below / HIGH PRISM : 5prism over)
-but, LOW PRISM = step D and HIGH PRISM = step G.
‘Diopter Prism Setup’ screen will show the following information:
- (*)DIOPTER_IDX : -10, -15, -20, -25, +10, +15, +20, +25Diopter.
- ANG_IDX : Display axis index currently.
- PSM_IDX : Display prism index currently.

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2.6. The calibration of the cylindrical axis
With the +5D rectangular cylindrical lens, we can calibrate the cylindrical axis of our
machine. The procedures are as followings:
0
1
2
3
A. T hen, press the ‘CYL SETUP’ ( ) button.
B. Place the +5D rectangular cylindrical lens on the lens cap.
C. ‘-0.01’ button and ‘+0.01’ button by the given value in the standard
model-eye specification.
D. Locate it to the center while cling it to the lens.
(Axis : 0°/45°/90°/135°, Prism_x, y: 0)
E. Press the ‘MEASU’ button and check if ‘A0’ value is changed.
F. Rotate the cylinder lens with a counterclockwise, repeat from Step D ~ to
Step E to the Axis value equal to 45°/90°/135°.
G. Finally the ‘SAVE’ button to save.
- CYLINDER : 5Diopter cylinder lens.
- Idx : Display axis index currently.
- AXIS : Display axis base currently.

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2.7. The to set PD
With the PD Sensor, we can calibrate the PD value of our machine.
The procedures are as followings:
A. Press the ‘PD&UV’( ) button.
B. Push in the PD sensor is the leftmost. And press the ‘L Lim’ button.
C. Push in the PD sensor is the rightmost. And press the ‘R Lim’ button.
D. Push in the PD sensor is the rightmost. Fixes in the scale mark 10mm moves,
and press the ‘PD Set’ button sequentially.
E. Fifth PD Bar center press the ‘CENTER’ button. (PD POSITION[4])
F. Finally the ‘SAVE’ button to save.
The information displayed in ‘setting the position of PD’ screen is as follows:

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2.8. The to set UV
With the UV, we can calibrate the UV value of our machine.
The procedures are as followings:
A. Press the ‘PD&UV’( ) button.
B. Press the ‘UV’ button in right end.
C. Open UV cover.
D. Focus to UV 0.0 by using ‘INDEX’ button.
E. ‘ -0.01’button and ‘ +0.01 ’ button by the given value in the UV lens
specification.
F. When UV transmissivity is 0.0 : Prevent part that UV-LED comes out.
When UV transmissivity is 25.0/50.0/75.0 : Put a lens on the top of the UV-LED
comes out..
When UV transmissivity is 100.0 : Nothing raises.
G. Press the ‘MEASU’ button.
H. UV transmissivity by 0.0->100.0->25.0->50.0->75.0 orders Step D ~ to Step G
repeat.
I. Finally the ‘SAVE’ button to save.
J. Press the ‘EXIT’ button and get out.
The information displayed in ‘setting the position of UV’ screen is as follows: