Iiyama LPX100 User manual
Maintenance Manual
Multimedia Projector
LPX100
December 2000
IIYAMA CORPORATION
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Macintosh is a trademark of Apple Computer, Inc.
PC-98 is a trademark of NEC Corporation.
Repair Work Safety and Safety Checks
When performing any servicing, basic safety precautions should always
be followed, including the following:
(1) Be careful of high temperature sections.
Do not touch the lamp immediately after it has been used. It will be extremely hot.
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(2) Observe cautions.
Some parts require careful handling at the time of servicing.
Cautions about these parts are indicated in the labels or by marking on the cabinet, chassis,
or parts. Be sure to observe these cautions and cautions in the Instruction Manual.
(3) Be careful of electrical shock.
When the power is turned on and maintenance service is performed with the cover
removed, be sure to wear a pair of gloves. Be sure to disconnect the plug when replacing
parts.
(4) Use specified parts only.
Parts used in this product are selected from safety point of view, such as of inflammable or
voltage resistant characteristics. Therefore, use only specified parts for replacement.
(5) Put parts and wirings back after servicing.
Some parts make use of insulation materials such as tubing and tape for the sake of safety.
Some other parts are mounted in a floated state from the PCB.
In addition, internal wiring is laid properly by clamp or the like to avoid contact with
heating parts and high-voltage parts.
Be sure to put them back as before.
(6) Perform safety check after servicing.
Check that screws, parts, and wiring removed for servicing are put back in position.
Check that other components have not been damaged during servicing.
Check insulation between an external metallic sectionsand the blade of the plug before the
power is turned on.
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How to perform insulation check
Unplug the equipment from the outlet and disconnect all the wires and cables connected to
the equipment. Then, check that the insulation resistance between each plug and the
externally exposed metallic sections(Note) of respective terminals is 10 MΩor larger, using
a 500V insulation resistance meter.
Note)Externally exposed metallic sections: VIDEO input terminal, S-VIDEO input
terminal, PC input terminal, test terminal
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Table of Contents
1. Overview...............................................................................................................1
1.1 Functional Structure of LPX100......................................................................................1
2. Servicing...............................................................................................................2
2.1 Outline of Servicing.........................................................................................................2
2.2 Outline of Operation........................................................................................................3
3. Function Descriptions of Replacement Parts........................................................4
3.1 Replacement Parts............................................................................................................4
3.1.1 First Category Replacement Parts..............................................................................4
3.1.2 Second Category Replacement Parts..........................................................................8
3.1.3 User-replaceable Parts................................................................................................8
3.2 List of Replacement Parts................................................................................................9
3.2.1 First Category Replacement Parts..............................................................................9
3.2.2 Second Category Replacement Parts........................................................................10
3.2.3 User-replaceable Parts..............................................................................................10
4. Diagnosis............................................................................................................ 11
5. Troubleshooting ..................................................................................................13
5.1 Troubles when AC Power Cord is connected (Standby Mode).....................................13
5.2 Troubles when the Power is turned on...........................................................................14
5.3 Adjustment after Parts Replacement..............................................................................18
5.3.1 First Category Replacement Parts............................................................................18
5.3.2 Second Category Replacement Parts........................................................................19
5.3.3 User-replaceable Parts..............................................................................................19
6. Repair.................................................................................................................20
6.1 Test Equipment and Materials .......................................................................................20
6.2 Parts / Units Replacement..............................................................................................20
6.2.1 Work prior to Repair.................................................................................................20
6.2.2 Instrument Disassembly Procedure..........................................................................20
6.2.3 Replacement Procedure............................................................................................20
6.2.4 Outline of Test Mode Menu .....................................................................................21
6.3 Adjustment Procedure....................................................................................................25
6.4 Checks and Adjustments................................................................................................27
6.4.1 Input Power Terminal Continuity Check..................................................................27
6.4.2 Equipment Connections ...........................................................................................27
6.4.3 Environment.............................................................................................................28
6.4.4 Verification of Basic Operation................................................................................28
6.4.5 ASO Adjustment Value Input...................................................................................29
6.4.6 COM Adjustment.....................................................................................................29
6.4.7 REVCOM Adjustment.............................................................................................30
6.4.8 CLDLY Adjustment .................................................................................................31
6.4.9 REVCLDLY Adjustment .........................................................................................32
6.4.10 CK-PHASE Adjustment.........................................................................................33
6.4.11 NRS Adjustment.....................................................................................................33
6.4.12 VIDR Adjustment (White Balance Adjustment)....................................................34
6.4.13 GHOST Adjustment...............................................................................................35
6.4.14 REVGHOST Adjustment.......................................................................................35
6.4.15 Adjustment Value Storage......................................................................................36
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6.4.16 Interlock Switch Operation Check.........................................................................36
7. Verification Test...................................................................................................37
7.1 Test Equipment and Materials .......................................................................................37
7.2 Test Equipment Connection...........................................................................................38
7.3 Environment...................................................................................................................39
7.4 Outline of Verification Test............................................................................................39
7.5 Inspection / Verification Procedures..............................................................................41
7.5.1 Temperature Alarm Test...........................................................................................41
7.5.2 Safety Test, Dielectric Strength Test........................................................................41
7.5.3 Insulation Resistance Test........................................................................................42
7.5.4 Leak Current Test.....................................................................................................42
7.5.5 Power Consumption Test..........................................................................................42
7.5.6 Ground Continuity Test............................................................................................43
7.5.7 Foreign Material Verification...................................................................................43
7.5.8 Test Equipment Connection .....................................................................................43
7.5.9 FAN Alarm Function................................................................................................43
7.5.10 FAN Alarm Release Function and Lamp ON Operation.......................................44
7.5.11 Drop Impact Test....................................................................................................44
7.5.12 Tilt Foot Function...................................................................................................44
7.5.13 Focus Ring Function ..............................................................................................45
7.5.14 Zoom Ring Function ..............................................................................................45
7.5.15 Panel Key Function................................................................................................45
7.5.16 Remote Control Operation .....................................................................................46
7.5.17 Serial I/F Function..................................................................................................46
7.5.18 Optical Performance Verification, Image Quality..................................................47
7.5.19 Dust ........................................................................................................................47
7.5.20 Chromaticity and Color Shading............................................................................52
7.5.21 Pixel Focusing........................................................................................................52
7.5.22 Convergence...........................................................................................................53
7.5.23 Stray Light..............................................................................................................53
7.5.24 Illuminance, Contrast, Perimeter Illuminance Raito Measurement.......................54
7.5.25 Light Leak ..............................................................................................................55
7.5.26 PC Image Verification, Flicker Verification...........................................................55
7.5.27 Tone Reproduction, White Balance........................................................................55
7.5.28 Jitter, Picture Position.............................................................................................55
7.5.29 Color Reproduction................................................................................................56
7.5.30 U-XGA...................................................................................................................56
7.5.31 31kHz, Synchronous Polarity Discrimination........................................................56
7.5.32 Keystone.................................................................................................................57
7.5.33 AUTO SYNC.........................................................................................................57
7.5.34 Economy Mode ......................................................................................................58
7.5.35 Language................................................................................................................58
7.5.36 Projection Mode.....................................................................................................59
7.5.37 Video Image Verification (NTSC), Jitter, B&W Play Back...................................59
7.5.38 Skin Tone Reproduction, HPOSITION.................................................................60
7.5.39 Sound Volume ........................................................................................................60
7.5.40 S-Video Input Verification......................................................................................60
7.5.41 PAL Verification.....................................................................................................61
7.5.42 SECAM Verification ..............................................................................................61
7.5.43 PAL N Verification.................................................................................................62
7.5.44 NO SYNC Verification...........................................................................................62
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7.5.45 PC OUT Verification..............................................................................................62
7.5.46 Audio Output Terminal Verification.......................................................................63
7.5.47 Built-in Speaker, VIDEO Sound Verification........................................................63
7.5.48 PC Audio Verification............................................................................................63
7.5.49 Plug&Play Verification...........................................................................................64
7.5.50 Preshipment Settings..............................................................................................64
7.5.51 Accessories.............................................................................................................65
7.5.52 External Appearance Verification ..........................................................................65
8. Packaging and Transportation............................................................................66
Appendix 1Disassembling/Assembling Procedures..............................................67
1. Lamp Cover Assembly ....................................................................................................68
2. Front panel Assembly......................................................................................................69
3. Top cover Assembly ........................................................................................................70
4. ASO-02 PKG...................................................................................................................71
5. Intake Fan (BM5125).......................................................................................................72
6. Lamp Bay Fan (BM5125)................................................................................................74
7. Optical Engine Assembly ................................................................................................78
8. ASM-02 PKG ..................................................................................................................79
9. Fan (109P0412H602).......................................................................................................80
10. Lamp Power Supply (PHG151G10)..............................................................................81
11. Main Power Supply (MPF1615)....................................................................................85
12. ASC-02PKG ..................................................................................................................90
13. Sirocco Fan....................................................................................................................91
14. Tilt Foot Assembly.........................................................................................................92
Appendix 2Adjustment Value Form.......................................................................93
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1. Overview
1.1 Functional Structure of LPX100
Operation
Input operation
by switches
or remote-control keys
Processing
Image Processing
Audio Processing
Projection
Projection
Processing
PC
VIDEO
PC Image/Audio Signals
RGB
Video Image/Audio Signals
NTSC, PAL, SECAM
Composite or Y/C separated
Screen
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2. Servicing
2.1 Outline of Servicing
The servicing work is basically performed through the following steps.
The repair should be done basically by replacing acomponent which includes a faulty part.
For replacement parts, refer to “3.2 List of Replacement Parts”.
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Start of Servicing
Diagnosis
Identify problems.
Troubleshooting
Look into causes of problems.
Repair and Adjustment Test
Replace acomponent which includes a faulty
part and perform required adjustments and
verifications.
Verification Test
Verify that functions and performance meet
the specifications.
Completion of Servicing
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2.2 Outline of Operation
1. Connect the power cord to the LPX100 projector.
The POWER LED lights up in order of red, green, and red. (Standby mode)
2. Press the <ON/STANDBY> key.
The lamp is turned on and the POWER LED lights up green.
The Lamp LED lights up green.
When the PC input or the VIDEO input is selected and the input signal from the PC or
the video is not received, the whole screen turns blue and the message “XX signal is
not input.”is displayed.
3. Select the input.
Select PC or VIDEO to display the image.
4. Make adjustments.
For user adjustments, press the <MENU/ENTER> key to display the Menu, and then
select the desired adjustment item by the or key and press the
<MENU/ENTER> key to confirm the entry. To select an item, use the or key.
To make adjustments, use the or key.
For service personnel adjustments, use (1) the <ON/STANDBY> + <ENTER> key
combination, (2) the <KEYSTONE> + <AUTO SYNC> key combination, and (3)
the <SOURCE> + <KEYSTONE> key combination continuously to enter the Test
mode. The procedural steps are the same as for user adjustments.
5. Turn off the lamp.
On the completion of the adjustment, press the <ON/STANDBY> key to turn off the
lamp.
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3. Function Descriptions of Replacement Parts
3.1 Replacement Parts
For the numbers in the parentheses at the left of part names, refer to the description given in
the same Item No. in “3.2 List of Replacement Parts”.
3.1.1 First Category Replacement Parts
(101) ASC-02PKG
The ASC-02PKG has Video input/output
terminals, Audio input/output terminals, and RS-
232C input terminals and outputs a video input
signal to the ASM-02PKG. This board generates
voltages used by the ASM-02PKG.
(102) ASM-02PKG
The ASM-02PKG has a main CPU on it and
controls the whole unit. This board processes all
the video signals and outputs them to ASO-
02PKG.
(103) ASO-02PKG
The ASO-02PKG is an interface between
components in the unit. This board processes all
the video signals and outputs them to the Optical
Engine. This board has a sub-CPU on it and
controls the unit during the Standby mode.
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(104) Main Power Supply (MPF1615)
This is a main power supply of the LPX100
projector and supplies electric power to
components of the unit.
(105) Lamp Power Supply (PHG151G10)
Power Supply to turn on the projection lamp.
Take utmost care for the high voltage when the
lamp is turned on.
(106) Sirocco Fan (D05F-12PH)
DC Fan (rated voltage: 12V) used to cool the PBS
at the lower part of the Optical Engine. This Fan
draws its power from the ASO-02PKG.
(107) Fan (109P0412H602)
DC Fan (rated voltage: 12V) used to cool the
Power Supply in the Power Supply Unit. This Fan
draws its power from the ASO-02PKG.
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(108)Fan (BM5125)
DC Fan (rated voltage: 12V) mounted on the
Lamp Bay (exhaust) and the Air Kit (intake). This
Fan draws its power from the ASO-02PKG.
(109)Top Cover Assembly
Upper cover of the LPX100 projector. The Key
Panel and the Speaker are installed in it.
(110)Bottom Cover Assembly
Lower cover of the LPX100 projector.
(111)Front Panel Assembly
Front cover of the LPX100 projector.
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(112)Optical Engine Assembly
The Optical Engine Assembly has a focusing
function and zooming function. The LCD
operates under control of signals from ASO-
02PKG.
(113)Tilt Foot Assembly
Use to tilt the projected image.
(114)Lamp Cover Assembly
The Lamp Cover is fastened to the Lamp Bay
with screws and must be removed to replace the
lamp.
If this Lamp Cover is removed, the Interlock
Switch is turned off. Therefore, the power of the
LPX100 projector cannot be turned on.
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3.1.2 Second Category Replacement Parts
(201) AC Inlet
Power input terminals to connect the AC power cord.
(202) Thermostat
When the internal temperature becomes extremely high, the thermostat is turned off to
interrupt the AC line and the power of the LPX100 projector is turned off.
(203) Interlock Switch
When the Lamp Cover is installed, this switch is turned on. When the Lamp cover is not
installed, this switch is turned off to interrupt the AC line. Therefore, even when the
power is turned on, the LPX100 projector does not start up.
(204) Microswitch
Switch for detecting the presence of an Air Filter. When the Air Filter is not attached, the
POWER LED blinks red.
(205) Thermistor
Measures an ambient temperature. When it detects temperature anomaly, the Lamp is
turned off.
(206) Speaker
Outputs the input sound.
(207) Remote Sensor
Remote Sensor installed on the front of the LPX100 projector. Rear Remote Sensor is
mounted on the ASM-02PKG.
3.1.3 User-replaceable Parts
(301) Lamp Unit
The Lamp Kit consists of a Lamp Unit and an Air Filter.
(302) Filter Kit
Air Filter attached to the Fan Cover for the Intake Fan ventilating openings to keep dust
out. If this filter is clogged, the internal heat build-up may cause loss of life to the unit
and/or a failure.
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3.2 List of Replacement Parts
3.2.1 First Category Replacement Parts
Parts which have a likelihood of failure.
Item No. Description Part No.Remarks
101 ASC-02 PKG 7040198-100
102 ASM-02 PKG 7040196-100
103 ASO-02 PKG 7040148-100
104 Main Power Supply 7010907-000 MPF1615
105 Lamp Power Supply 7010908-000 PHG151G10
106 Sirocco Fan 7010848-000 D05F-12PH
107 Fan 7010847-000 109P0412H602
108 Fan 7010846-000 BM5125
109 Top Cover Assembly 7010854-000
110 Bottom Cover Assembly 7010852-000
111 Front Panel Assembly 7010856-000
112 Optical Engine Assembly 7010853-000
113 Tilt Foot Assembly 7010989-000
114 Lamp Cover Assembly 7010858-000
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3.2.2 Second Category Replacement Parts
Parts which are difficult to be replaced or have little likelihood of failure.
Item No. Description Part No.Remarks
201 AC Inlet 6619750-084
202 Thermostat 6643000-056
203 Interlock Switch 6643230-010
204 Microswitch 6641002-004
205 Thermistor 6606600-056
206 Speaker 6652500-156
207 Remote Sensor 7070200-100
3.2.3 User-replaceable Parts
Item No. Description Part No.Remarks
301 Lamp Unit 7011044-000 UMPRD150NAA
302 Filter Kit 7011043-000 FK-10
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4. Diagnosis
This chapter describes the Diagnostic Procedure to be performed prior to the repair.
Diagnosis Check that the projection lamp has not been broken.
Inspect the unit for transport damage.
Turn on the power.
Check LED indicators.
LED Status Description
OFF Internal temperature is normal.
ON red Lamp is off due to internal temperature
anomaly.
TEMP LED Blinking red Fan is starting up due to internal
temperature anomaly.
OFF Lamp is off.
ON green Lamp stays on.
Blinking green
slowly Lamp is off and being cooled.
Blinking green
rapidly Lamp is starting up.
On red This LED lights up red when Lamp usage
time has exceeded 1500 hours, Lamp has
gone out during operation, and Lamp has
failed to come on.
Replace the Lamp Unit.
LAMP LED
Blinking red Lamp usage time is between 1400 hours
and 1500 hours.
Replace the Lamp Unit.
OFF The line cord plug is removed from the
receptacle.
ON green The unit is operating normally.
Blinking green Something unusual has occurred inside
the unit.
ON red Standby mode.
POWER LED
Blinking red Air Filter is off from the Fan Cover.
Or Fan anomaly.
Project an image onto the screen.
Verify that RGB pixels are not excessively out of registration.
Note: It is recommended to verify the image in the PC mode, which
is astill picture. It is easier to check mis-registration.
Note: Excessive mis-registration necessitates the replacement of the
Optical Engine.
(To be continued)
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(Continued)
Select the PC input.
Project the white grid pattern onto the screen.
Note: When the PC input is selected, make the AUTO SYNC
adjustment (Automatic Synchronization Adjustment).
Verify the registration.
Mis-registrations of R and B, with respect to G, should be within
1.0 pixel.
R and B registrations should be, at worst, in contact with G pixel
respectively.
Note: If these are not satisfied, replace the Optical Engine.
Project other patterns to verify a color and brightness.
If unsatisfactory, repeat adjustments.
Select the VIDEO input to verify a color, brightness and others.
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5. Troubleshooting
For the numbers in the parentheses at the right of part names, refer to the description given in
the same Item No. in “3.2 List of Replacement Parts”.
5.1 Troubles when AC Power Cord is connected (Standby Mode)
Troubles when AC power cord is connected may be caused by a Power Supply failure, a
break in a cable, or a package failure.
AC cord is connected (Stanby mode).
Key panel LEDs are not lit.
Replace the Top Cover Assembly (109) . Is trouble solved by replacement?
No
Yes
Replace the Main Power Supply (104) .
Use the replaced Top Cover
Is trouble solved by replacement?
Assembly.
No
Yes
Replace the ASO-02PKG (103) .
Use the replaced Power Supply.
Is trouble solved by replacement?
No
Yes
Replace the ASM-02PK (102) .
Use the replaced PKG.
Is trouble solved by replacement?
No
Yes
Replace the ASC-02PK (101) .
Use the replaced PKG.
The POWER LED does not light up red
•¨
green
•¨
red.
Replace the ASO-02PKG (103) . Is trouble solved after replacement?
No
Yes
Replace the ASM-02PKG (102) .
Use the replaced PKG.
Is trouble solved by replacement?
No
Yes
Replace the ASC-02PKG (101) .
Use the replaced PKG.
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