Mitsubishi ColorView SL1U User manual

MODEL
SL1U / XL1U
LCD PROJECTOR
LC31 CHASSIS [SL1U]
LC29 CHASSIS [XL1U]
CAUTION
Before servicing this chassis, it is important that the service person reads the “SAFETY PRECAUTIONS” and “PRODUCT
SAFETY NOTICE” in this service manual.
SPECIFICATIONS
2001
MITSUBISHI
• Power Input
• Rated Input
• LCD Panel
[SL1U]
[XL1U]
• Colors
• Projection Lens
•
Light Source Lamp
• Picture Size
• PC compatibility
[SL1U]
[XL1U]
•
Video compatibility
• Speaker
• Audio Output
• Audio Input
• S-Video Input
• Video Input
•
Analog RGB Input
(mini D-SUB 15P)
• Control connector
[SL1U]
[XL1U]
• Cabinet
Dimensions
• Weight
•
Length of Power Cord
: AC 100 - 240 V ; 50 / 60 Hz
: 2.3 A
:
0.7 inch LCD panel: 3 pieces (for R,G,B)
Active pixel rate: 99.99 % or more (each panel)
Pixels 800 ×600 = 480,000 pixels
Total 1,440,000 pixels
Pixels 1,024 ×768 = 786,432 pixels
Total 2,359,296 pixels
: 16,770,000 colors
: F 1.9 - 2.2 f = 27.0
- 32.0 mm
: 150 W NSH
: aspect ratio 4:3 30 - 300 inch
:
Resolution : 640 ×400 - 800 ×600 + Compressed
1,024 × 768 Sync on Green available
Resolution : 640 ×400 - 1,024 ×768 + Compressed
1,280 × 1,024 Sync on Green available
: NTSC/NTSC4.43/PAL(including PAL-M,N)
/SECAM, PAL-60 DVD(Component)/
HDTV(1080i)/720p/(525p)
: Round type (8 Ω1 W)
: 1 W mono
: 350 mV(rms), 10 kΩor more
: Luminance signal: 1.0 V(p-p) 75 Ω
(negative sync.)
Chroma signal: 0.286 V(p-p) 75 Ω
(burst signal)
: 1.0 V(p-p) 75 Ω(negative sync.)
: RGB : 0.7 V(p-p) 75 Ω(negative sync.)
YCBCRY : 1.0 V(p-p) (negative sync.)
CBCR : 0.7 V(p-p)
HD/CS: TTL level (positive or negative)
VD: TTL level (positive or negative)
:
Serial (DIN 8 pin female connector)
RS-232C standards
Serial (DIN 8 pin female connector)
RS-232C standards
USB terminal for mouse
: 9.3”(W) ×3.7”(H) ×12.4”(D)
(237 ×94 ×315 mm)
(Legs and lens are included.)
: Approx. 2.9 kg (6.5 lbs)
: 9.5 feet (2.9 m)
•Weight and dimensions shown are approximate.
•Design and specifications are subject to change without notice.
MITSUBISHI ELECTRIC
Copyright C2001 Mitsubishi Electric Corporation All Rights Reserved.

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CONTENTS
–FILE “COVERPGE”–
SPECIFICATIONS ···································································································································· 1
CONTENTS ··········································································································································· 2
–FILE “EXPOSED”–
TRADEMARK, REGISTERED TRADEMARK ·························································································· 1
PRODUCT SAFETY NOTICE ·················································································································· 1
SAFETY PRECAUTIONS························································································································· 2
PCBs LOCATION ····································································································································· 3
EXPOSED VIEW ······································································································································ 4
DISASSEMBLY ········································································································································ 9
LEAD DRESS··········································································································································· 17
PACKING ··········································································································································· 18
–FILE “MAINTENA”–
LAMP REPLACEMENT···························································································································· 1
MAINTENANCE ······································································································································· 2
HOW TO USE THE LAMP JIG················································································································· 2
DUST ON LCD PANEL····························································································································· 3
RESET OF THE THERMAL PROTECTOR······························································································ 3
SERVICE COMMANDS ··························································································································· 4
FUNCTION MENU (SETTING MENU ONLY FOR SERVICE) ································································· 5
LIFE TIME OF THE CONSUMABLE PARTS ··························································································· 5
REPLACEMENT OF MAIN PCB ASSY···································································································· 6
GAMMA ADJUSTMENT (WHITE BALANCE ADJUSTMENT)································································· 7
UNIFORMITY DATA TRANSMIT·············································································································· 9
DOWNLOAD OF THE FIRMWARE·········································································································· 10
ABOUT LASER BEAM ····························································································································· 12
–FILE “ELCTADJ”–
ELECTRICAL ADJUSTMENTS················································································································ 1
–FILE “DIAGNO”–
DIAGNOSIS INFORMATION···················································································································· 1
DIAGNOSTIC SOFTWARE, TO READ WARNING HISTORY (PCGCe Ver.8)······································· 3
SPECIFICATION OF RGB SIGNALS IN EACH COMPUTER MODE OF THE PROJECTOR ······························ 5
–FILE “DIAGFLOW”–
DIAGNOSIS FLOW CHART····················································································································· 1
–FILE “PCCONTRL”–
CONTROL PROJECTOR BY USING A PERSONAL COMPUTER ························································· 1
–FILE “PARTSLST”–
PARTS LIST ··········································································································································· 1
–FILE “SCHEMATC”–
IC BLOCK DIAGRAMS
SCHEMATIC DIAGRAMS
PRINTED CIRCUIT BOARD PARTS LAYOUT

-
1 -
Many electrical and mechanical parts in the LCD PROJECTOR have special safety related characteristics.
These characteristics are often not evident from visual inspection nor can the protection afforded by them
necessarily be obtained by using replacement components rated for higher voltage, etc. Replacement parts
which have these special safety characteristics are identified in this service manual. Electrical components
having such features are identified by shading on the schematic diagram and the parts list of this service
manual and by the supplementary sheet for this chassis to be issued subsequently.
PRODUCT SAFETY NOTICE
TRADEMARK, REGISTERED TRADEMARK
Apple, Macintosh are registered trademarks of Apple Computer Inc.
IBM, VGA, PS/2 are trademarks or registered trademarks of International Business Machines Corporation.
MicrosoftWindows95 is a registered trademark of Microsoft in the U.S. and other countries.
Space Pointer is registered trademarks of ALPS ELECTRIC CO., LTD.
Other brand or product names are trademarks or registered trademarks of their respective holders.

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2 -
SAFETY PRECAUTIONS
NOTICE: Observe all cautions and safety related notes located inside the cabinet and on the chassis.
WARNING
1. Operation of this LCD PROJECTOR outside the cabinet or with the cover removed presents a shock hazard from the
LCD PROJECTOR power supplies.
2. When a short-circuit has occurred, replace those components that indicate evidence of overheating.
3. Grounding circuit continuity is vital for safe operation of equipment. Do not remove ground connection while the
power cord is still connected to the supply. Disconnect supply before servicing.
LEAKAGE CURRENT CHECK
Before returning the LCD PROJECTOR to the customer, it is recommended that leakage current be measured
according to the following methods.
1. Cold Check
With the AC plug removed from the AC source, place a jumper across the two AC plug prongs. Turn the LCD
PROJECTOR AC switch on. Using an ohm-meter, connect one lead to the AC plug and touch the other lead to each
exposed metal part (metal cabinet, screwheads, metal overlays, etc.), particularly any exposed metal part having a
return path to the chassis. Exposed metal parts having a return path to the chassis should have a minimum
resistance reading of 1 megohm. Any resistance below this value indicates an abnormality which requires corrective
action. Exposed metal parts not having a return path to the chassis will indicate an open circuit.
2. Hot Check
Use the circuit in Fig. 1 to perform this test.
(1) With switch S1 open, connect the LCD PROJECTOR to the measuring circuit. Immediately after connection,
measure the leakage current using both positions of switch S2, and with the switching devices in the LCD
PROJECTOR in all of their operating positions.
(2) Switch S1 is then closed, energizing the LCD PROJECTOR. Immediately after closing the switch, measure the
leakage current using both positions of switch S2, and with the switching devices in the LCD PROJECTOR in
all of their operating positions. Current measurements of items (1)and (2) are to be repeated after the LCD
PROJECTOR has reached thermal stabilization. The leakage current must not be more than 0.5 milliampere.
V
S1
S2
AC source
GH
(Grounding)
Open
Grounding Supply Conductor B
Insulating Table
LCD PROJECTOR
A
AC Milliammeter
Figure 1
Europe, Other than USA
NOTICE: Observe all cautions and safety related notes located inside the cabinet and on the chassis.
WARNING
1. An isolation transformer should be used between the projector and the AC supply point before any test/service is
performed on a LIVE chassis projector.
2. Operation of this projector outside the cabinet or with the cover removed, involves a shock hazard from the projector
power supplies. Work on the projector should not be attempted by anyone who is not thoroughly familiar with
precautions necessary when working on high voltage equipment.
3. When service is required, observe the original lead dressing. Extra precaution should be given to assure correct lead
dressing in the high voltage area. Where a short-circuit has occurred, replace those components that indicate
evidence of overheating.
LEAKAGE CURRENT COLD CHECK
Before returning the projector to the customer, it is recommended that leakage current be measured according to the
following methods.
With the AC plug removed from the AC source, place a jumper across the two AC plug prongs. Turn the projector AC
switch on. Using an 500V D.C. Insulation Tester, connect one lead to the jumpered AC plug and touch the other lead
to each exposed metal part (screwheads, etc.), particularly any exposed metal part having a return path to the
chassis. Exposed metal parts having a return path to the chassis should have a minimum resistance reading of 4
megohm. Any resistance below this value indicates an abnormality which requires corrective action.
North America

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3 -
PCBs LOCATION
8
1
7
65
4
3
2
Fig. 1
Item No. Parts Name
qPOWER PCB ASSY
wLAMP POWER UNIT
ePREAMP PCB ASSY
rINLET PCB ASSY
tTERMINAL PCB ASSY
yMAIN PCB ASSY
uAUDIO PCB ASSY
iSENSOR PCB ASSY
Table. 1
Parts List : See Parts List Page 2.

-
4 -
EXPOSED VIEW
Ax6
1
4
2
Bx3
3
Cx2
5
Ex1 Gx1 Hx3 Fx1
Fx1
Fx3
Dx1
6
Ix2
7
8
9
!0
Kx1
!1
!2
Lx4
Mx1
!3
Nx1
!4
!5
!7
Ox1
!6
!8
Rx1
Px1
!9
Qx2
Jx2
Sx2
Fig. 2-1
Number of Screws :
The number of Screws holding Parts.
Table 2-1
Parts Name Number of Screws
qTop Case Assy Ax6
wMembrane Switch Bx3
eSpeaker Cx2
rTerminal Board Dx1
tMAIN PCB ASSY/ Ex1
INLET PCB ASSY/ Fx5
TERMINAL PCB ASSY/
Gx1
Terminal Assy Hx3
yLamp Power Assy Ix2 ,SX2
u
LAMP POWER UNIT none
i
PREAMP PCB ASSY none
oPower Assy Jx2
!0
SENSOR PCB ASSY
Kx1
!1 Optical Unit Lx4
!2 Exhaust Duct Mx1
!3 AUDIO ASSY Nx1
!4 Filter none
!5 Filter Cover none
!6 Bottom Case Unit
!7 Micro Switch Ox1
!8 Lamp Cover Px1
Rx1 (Washer)
!9 Adjustment Foot Qx2
Note: Technicians must put on a wrist band to protect LCD panel against Static electricity during the repairs.
earth wire
from the
Terminal
Shield
Parts List : See Parts List Page 3.
LVP ASSY

-
5 -
1
2
3
4
5
6
Cx2
Fx2
Ax4
EIx1
Gx1
Dx2
Hx1
Bx2
7
Parts Name Number of Screws
q
TERMINAL PCB ASSY
Ax4
wINLET PCB ASSY Bx2, Gx1
Ix1 (Washer)
eMAIN PCB ASSY Cx2, Dx2
Ex1 [SL1U], Ex2 [XL1U]
r
Terminal Shield
tCooling Fan (Power) Fx2, Hx1
6Inlet Barrier none
7Seesaw Sw none
Table 2-2
Fig. 2-2
( MAIN / INLET / TERMINAL PCB ASSY ) TERMINAL ASSY Part
Parts List : See Parts List Page 4.

-
6 -
Parts Name Number of Screws
q
PREAMP PCB ASSY none
w
LAMP POWER UNIT none
eLp Barrier none
rLamp Power Holder none
Table 2-5
Parts List : See Parts List Page 4.
1
2
3
4
Fig. 2-5
LAMP POWER ASSY Part
2
3
4
5
1
Ax2
1
2
3
Table 2-3
Parts Name
Number of Screws
qPower Barrier none
w
POWER PCB ASSY
Ax2
eHp Barrier none
rPower Holder none
tPower Earth none
Table 2-4
Parts Name Number of Screws
qAudio Barrier none
wAUDIO PCB ASSY none
eAudio Holder none
Fig. 2-3
Fig. 2-4
POWER ASSY Part AUDIO ASSY Part
Parts List : See Parts List Page 4.
Parts List : See Parts List Page 4.

-
7 -
1
w
e
r
ti
u
y
o
!0
!1 !2
!3
!4
!5
Ax4
Bx1
Lx1 Cx1
Fx5
Ix1
Jx1
Kx1
Hx1
Gx2
Dx1
Ex2
!6
Mx1
Note: Technicians must put on a wrist band to protect LCD panel against Static electricity during the repairs.
Number of Screws : The number of Screws holding Parts.
Table 2-6
OPTICAL UNIT Part
Fig. 2-6
Parts List : See Parts List Page 5.
Parts Name Number of Screws
qLens Cap
- - -
wLens Unit Ax4
eLCD Block Bx1, Ix1
rThermistor Assy Lx1
tThermal Protector Cx1, Lx1
y
Cooling Fan Unit Assy (PBS)
Dx1
u
Cooling Fan Unit Assy (Exhaust)
Ex2
iTop Cover (Optical) Fx5
Parts Name Number of Screws
oDuct1
- - -
!0 Lamp Case Assy Gx2
!1 Lower Duct Hx1
!2 Duct2 Jx1
!3 Duct2 (lid) Jx1
!4 Fan Holder Ix1, Jx1
!5
Cooling Fan Unit Assy (Intake)
Kx1
!6 Lamp Mx1

-
8 -
!7
@0
!8
!9
Note: Directions of setting parts of !7 to @0 as shown in the pictorial below.
Number of Screws : The number of Screws holding Parts.
Table 2-7-2
OPTICAL UNIT Part
Parts Name Number of Screws
!7 PBS Unit none
!8 Polarizer (G) none
!9 Polarizer (B) none
@0 Polarizer (R) none
Fig. 2-7
Table. 2-7-1
!7 !8!9@0
Light source side (Lamp side)
Flat surface Flat surface
Uneven surface
shaved edge
Surface to stick the
polarizer on
Projection lens side
Parts List : See Parts List Page 5.
Directions which the setting parts face in
RGB Marking

-
9 -
2. Removal of SENSOR PCB ASSY and
AUDIO PCB ASSY
1. Remove the Top Case Assy and the Terminal Board
following “1. Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the (a) screw and the SENSOR PCB ASSY as
shown in Fig. 3-2.
Note: Also disconnect the NJ connector when removing the
SENSOR PCB ASSY.
3. Remove the Audio Barrier as shown in Fig. 3-2.
4. Release the three (b) hooks and remove the AUDIO
PCB ASSY as shown in Fig. 3-2.
Note: Also disconnect the GN connector on the AUDIO
PCB ASSY and the SV connector on the MAIN PCB
ASSY when removing the AUDIO PCB ASSY.
1. Removal of TOP CASE ASSY and
SPEAKER
1. Remove the seven (a) screws and the Top Case Assy
and the Terminal Board as shown in Fig. 3-1.
Note: Also remove the ST connector on the MAIN PCB
ASSY and the GE connector on the AUDIO PCB
ASSY when removing the Top Case Assy.
2. Remove the two (b) screws and the Speaker as shown
in Fig. 3-1.
DISASSEMBLY
ax6
ax1
bx2
Top Case Assy
Terminal Board
GE
ST
Speaker
Fig. 3-1
bx3
ax1
Audio Barrier
AUDIO
PCB ASSY SENSOR PCB ASSY
GN
SV
NJ
Fig. 3-2

-
10 -
3. Removal of PREAMP PCB ASSY and
LAMP POWER UNIT
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the two (a) screws and take out the Lamp
Power Assy.
3. Release the (b) hook and remove the PREAMP PCB
ASSY as shown in Fig. 3-3.
Note: Also disconnect the AL connector on the PREAMP
PCB ASSY when removing the PREAMP PCB ASSY.
4. Disconnect the A and the B connectors on the Thermal
Protector as shown in Fig. 3-3.
5. Remove the two ( ) screws and the Lamp Power
Connector as shown in Fig. 3-3.
6. Release the (d) hook and remove the LAMP POWER
UNIT as shown in Fig. 3-3.
Note: Also disconnect the CN1 and the CN2 connectors
when removing the LAMP POWER UNIT.
ax2
AL
PREAMP
PCB ASSY
dx1
bx1
LAMP POWER UNIT
x2
Lamp Power
Connector
CN2
CN1
A
B
Fig. 3-3
B
SA SD
SF
SJ
SL
SN
SP
SBX
SV
SW
SX
SY
SZ SGX
SRX
earth wire from
Terminal Shield
(MAIN PCB ASSY
INLET PCB ASSY
TERMIAL PCB ASSY)
Terminal Assy RE
A
Power
Barrier
bx3
bx1
x1
dx1 ex3
fx1
ax1
Filter Cover
Fig. 3-4
4. Removal of TERMINAL ASSY
(MAIN PCB ASSY, INLET PCB ASSY,
TERMINAL PCB ASSY )
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Release the (a) hook and remove the Filter Cover as
shown in Fig. 3-4.
3. Remove the four (b) screws, the ( ) screw, the (d)
screw and the three (e) screws as shown in Fig. 3-4.
4. Disconnect the fifteen connectors (SA, SD, SF, SJ, SL,
SN, SP, SV, SW, SX, SY, SZ, SBX, SGX and SRX) on
the MAIN PCB ASSY as shown in Fig. 3-4.
5. Open the Power Barrier slightly and disconnect the RE
connector on the POWER PCB ASSY and the A and the
B connectors on the Thermal Protector as shown in Fig.
3-4.
6. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY and TERMINAL PCB ASSY) as shown in
Fig. 3-4.
Note: Also remove the (f) screw of the Power Assy and
the earth wire from the Terminal Shield.

-
11 -
MAIN PCB ASSY
ax2
INLET PCB ASSY
TERMINAL PCB ASSY
Terminal Shield
Cooling Fan (Power)
x2
b
Fig. 3-5-1
TERMINAL
PCB ASSY
INLET PCB ASSY
ex2
Cooling Fan (Power)
Terminal
Shield
earth wire from
Power Earth
fx1
hx2
dx4
jx1
ix1
Inlet Barrier
FU
FS
FT FR
Seesaw SW
gx2
Fig. 3-5-2
5. Removal of MAIN PCB ASSY, INLET
PCB ASSY, TERMINAL PCB ASSY,
TERMINAL SHIELD and
COOLING FAN (POWER)
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”. (Fig.
3-4)
3. Remove the two (a) screws, (b) screw, two ( )
screws and MAIN PCB ASSY as shown in Fig. 3-5-1.
Note: The number of screws bis follows:
SL1U 1 screw
XL1U 2 screws
4. Remove the four (d) screws and TERMINAL PCB
ASSY as shown in Fig. 3-5-2.
5. Remove the two (e) screws, (f) screw and the Cooling
Fan (Power) as shown in Fig. 3-5-2.
6. Remove the Inlet Barrier as shown in Fig. 3-5-2.
7. Disconnect the four connectors (FR, FS, FT, FU) on the
Seesaw SW as shown in Fig. 3-5-2.
8. Release the two (g) hooks and remove the Seesaw
SW as shown in Fig. 3-5-2.
9. Remove the two (h) screws, (i) screw and (j)
washer as shown in Fig. 3-5-2.
10. Turn the INLET PCB ASSY 90 degrees in the direction
of the arrow to remove it as shown in Fig. 3-5-2.

-
12 -
Power Assy
GN
ax2
Fig. 3-6
ax2
POWER PCB ASSY
Power Barrier
bx1
Fig. 3-7
6. Removal of POWER ASSY
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Disconnect the GN connector on the AUDIO PCB ASSY
as shown in Fig. 3-6.
4. Remove the two (a) screws and lift the Power Assy to
remove it as shown in Fig. 3-6.
7. Removal of POWER PCB ASSY
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the Power Assy following “6.Removal of
POWER ASSY”. (Fig. 3-6)
4. Remove the Power Barrier as shown in Fig. 3-7.
5. Remove the two (a) screws, release the (b) hook and
remove the POWER PCB ASSY as shown in Fig. 3-7.

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13 -
Exhaust Duct
ax1
bx4
Optical Unit
GN
Fig. 3-8
8. Removal of OPTICAL UNIT
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the (a) screw and the Exhaust Duct as shown
in Fig. 3-8.
Note: Also disconnect the GN connector on the AUDIO
PCB ASSY when removing the Exhaust Duct.
4. Remove the four (b) screws and the Optical Unit as
shown in Fig. 3-8.

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14 -
Fig. 3-9
ax1
bx2
Optical Unit
Cooling Fan Unit Assy (PBS)
Cooling Fan
Unit Assy (Exhaust)
9. Removal of COOLING FAN UNIT ASSY
(PBS) and COOLING FAN UNIT ASSY
(EXHAUST)
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the Optical Unit following “8. Removal of
OPTICAL UNIT”. (Fig. 3-8)
4. Remove the (a) screw, and the Cooling Fan Unit Assy
(PBS) from the Optical Unit as shown in Fig. 3-9.
5. Remove the two (b) screws and the Cooling Fan Unit
Assy (Exhaust) from the Optical Unit as shown in Fig. 3-
9.
Fig. 3-10
ax1
Optical Unit
Cooling Fan
Unit Assy (Intake)
10. Removal of COOLING FAN UNIT ASSY
(INTAKE)
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the Optical Unit following “8. Removal of
Optical Unit”. (Fig. 3-8)
4. Remove the (a) screw, and the Cooling Fan Unit Assy
(Intake) from the Optical Unit as shown in Fig. 3-10.

-
15 -
12. Removal of LCD BLOCK
Note: Wear a wrist band, etc. to prevent static electricity
when replacing the LCD Block. The LCD may be
damaged by static electricity.
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the Optical Unit following “8. Removal of
OPTICAL UNIT”. (Fig. 3-8)
4. Remove the Lens Unit following “11. Removal of LENS
UNIT”. (Fig. 3-11)
5. Remove the two (a) screws and the Cooling Fan Unit
Assy (Intake) , Fan Holder and Duct2 (lid) as shown in
Fig. 3-12.
6. Remove the (b) screw and take out the LCD Block as
shown in Fig. 3-12.
ax2
bx1
Optical Unit
LCD Block
Cooling Fan Unit Assy (Intake)
and Fan Holder
Duct 2 (lid)
Fig. 3-12
Fig. 3-11
ax4
Optical Unit
Lens Unit
11. Removal of LENS UNIT
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the Optical Unit following “8. Removal of
OPTICAL UNIT”. (Fig. 3-8)
4. Remove the four (a) screws and the Lens Unit from the
Optical Unit as shown in Fig. 3-11.

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16 -
13. Removal of LAMP BOX ASSY
1. Remove the Top Case Assy and the Terminal Board
following “1.Removal of TOP CASE ASSY and
SPEAKER”. (Fig. 3-1)
2. Remove the Terminal Assy (MAIN PCB ASSY, INLET
PCB ASSY, and TERMINAL PCB ASSY) following
“4.Removal of TERMINAL ASSY (MAIN PCB ASSY,
INLET PCB ASSY, and TERMINAL PCB ASSY) ”.
(Fig. 3-4)
3. Remove the Optical Unit following “8. Removal of
OPTICAL UNIT”. (Fig. 3-8)
4. Remove the two (a) screws and the Lamp Box Assy as
shown in Fig. 3-13.
ax2
Optical Unit
Lamp Box Assy
Fig. 3-13

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17 -
Note: 1. The inner wires are clamped so that they do not come close to heat generating or high voltage parts. After servicing
route all wires in their original position.
2. Technicians must put on a wrist band to protect LCD panel against Static electricity during the repairs.
LEAD DRESS
SD SA SF SL
SP
SX SV
SJ
SY
SD
SN SZ SW
SX
NJ
SV
GV
CN2
GE
RE
GN
CN1
RB
SF
SJ
SY
SN
SL
AL
SZ
SW
SA
SP
1. Clamp the Lead Wires along the Clamping Zone* shown in the figure below.
*Clamping Zone shows the route of the Lead Wire.
Clamping Zone*
Hidden Clamping Zone*
Fig. 4-1
[Front Side]
To the
PCB-INLET
To the
speaker
Clamp two lead wires running
from the thermal protector.
Adjuster
[Rear Side]
Slacken the lead wire.
PCB-MAIN
Terminal Shield
Within 20mm
Wrap the grounding wire
around the lead wires.
Attach the lead wire
SL before the lead
wire SA, SF, and SP.
Bend the lead wire
twice to keep it
away from the
adjuster.
Slacken the lead wire.
Lead dress when attaching each part

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18 -
PACKING
r
1
ew
!1!2!3!4
!5!6!7!8
yuio!0
5
w
A
4
A
4
Put the packages in
the packing case .
Fold the sections shown
by inside and close
the packing case .
4
A
4
Place the soft case
between the folded
sections inside.
Make sure that the folded
sections stay in their
correct positions to hold
the soft case securely.
A
1
A
1
Item No. Parts Name
qSOFT CASE
wPACKING CUSHION
ePACKING SHEET
rPACKING CASE
tPACKING CASE
6,!1 PACKING BAG
uINSTRUCTION BOOK
iQUICK REFERENCE
oREMOTE HAND UNIT
!0 BATTERY
!2 AC POWER CORD
!3 AC POWER CORD
!4 CABLE (MINI DIN8-D-SUB9)
!5 CABLE (VGA)
!6 CABLE (AV)
!7 ADAPTER (PS/2)
!8 CABLE (USB)
Parts List : See Parts List Page 6.