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SDM-S204
US Model
Canadian Model
AEP Model
J Model
TFT LCD COLOR COMPUTER DISPLAY
SERVICE MANUAL


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There are some different LCD panels are used in the model SDM-S204.
Therefore the repair parts are also different.
Please confirm the serial number before repairing,
SDM-S204
SDM-S204
SDM-S204
SDM-S204
MODEL NAME
Color
Dest.
SER NO.(Fujitsu)
SER NO.(LPL)
SDM-S204
GRAY
AEP
9,300,001-9,400,000
9,400,001-9,500,000
SDM-S204
BLACK
U/C
9,200,001-9,250,000
9,250,001-9,300,000
SDM-S204
BLACK
AEP
9,500,001 - 9,600,000
-
SDM-S204
BLACK
J
9,750,001-9,775,000
9,775,001-9,800,000
- 1 -


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1. LCD CHARACTERISTICS
Type
: TFT Color LCD Module
Size
: 20.1 inch
Pixel Pitch
: 0.255 (H) x 0.255 (V)
Color Depth
: 16.7M colors
Electrical Interface
: LVDS
Surface Treatment
: Anti, Hard-coating(2H)
Operating Mode
: Normally Black
Backlight Unit
: Top/Bottom edge side 6-CCFL
(Cold Cathode Fluorescent Lamp)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio
10
Left : -85° min. Right
: +85° min.
Top :+85° min. Bottom : -85°min.
2-2. Luminance
: 200(min), 250(Typ.)
2-3. Contrast Ratio
: 400(min), 600(Typ.)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
· Type
: Separate Sync,
SOG (Sync On Green)
Composite Sync
3-2. Video Input Signal
1) Type
: R, G, B Analog
2) Voltage Level
: 0 ~ 0.7 V
3) Input Impedance
: 75
3-3. Operating Frequency
Analog(SXGA)
(UXGA)
Horizontal
: 28 ~ 92kHz
28 ~ 75kHz
Vertical
: 48 ~ 85Hz
60Hz
Dot clock
: <165MHz
Dot clock:<165MHz
Digital
Horizontal
: 28 ~ 75kHz
Vertical
: 60Hz
Dot clock:<165MHz
4
. Max. Resolution
Analog/Digital
: 1600 x 1200 / 60Hz
5. POWER SUPPLY
5-1. Power : AC 100-240V~, 50/60Hz , 1.2A
5-2. Power Consumption
6. ENVIRONMENT
6-1. Operating Temperature: 5°C~35°C (41°F~95°F)
6-2. Relative Humidity
: 10%~80%
(Non-condensing)
6-3. MTBF
: 50,000 Hours(Min)
7. DIMENSIONS (with TILT/SWIVEL)
Width
: 440.5 mm (17.34'')
Depth
: 234 mm (9.21'')
Height
: 447.5 mm (17.61'')
8. WEIGHT (with TILT/SWIVEL)
Net. Weight
: 7.5kg (16.87 lbs)
Gross Weight
: 10.9 kg (24.03 lbs)
CONTENTS
SPECIFICATIONS
- 2 -
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 4
OPERATING INSTRUCTIONS .................................6
WIRING DIAGRAM ................................................. 7
DISASSEMBLY ....................................................... 8
BLOCK DIAGRAM .................................................. 9
ADJUSTMENT ...................................................... 10
EXPLODED VIEW...................................................11
EXPLODED VIEW PARTS LIST ............................12
MODE
POWER ON (NORMAL)
STAND BY
SUSPEND
DPMS OFF
POWER S/W OFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
OFF/OFF
-
POWER CONSUMPTION
less than 60 W
less than 2.7W
less than 2.7W
LED COLOR
GREEN
AMBER
RED
VIDEO
ACTIVE
OFF
OFF
OFF
-
(100/50Hz, 240V/60Hz)


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- 3 -
PRECAUTION
WARNING FOR THE SAFETY-RELATED COMPONENT.
· There are some special components used in LCD
monitor that are important for safety. These parts are
marked
on the schematic diagram and the
replacement parts list. It is essential that these critical
parts should be replaced with the manufacturer's
specified parts to prevent electric shock, fire or other
hazard.
· Do not modify original design without obtaining written
permission from manufacturer or you will void the
original parts and labor guarantee.
TAKE CARE DURING HANDLING THE LCD MODULE
WITH BACKLIGHT UNIT.
· Must mount the module using mounting holes arranged
in four corners.
· Do not press on the panel, edge of the frame strongly
or electric shock as this will result in damage to the
screen.
· Do not scratch or press on the panel with any sharp
objects, such as pencil or pen as this may result in
damage to the panel.
· Protect the module from the ESD as it may damage the
electronic circuit (C-MOS).
· Make certain that treatment person's body are
grounded through wrist band.
· Do not leave the module in high temperature and in
areas of high humidity for a long time.
· The module not be exposed to the direct sunlight.
· Avoid contact with water as it may a short circuit within
the module.
· If the surface of panel become dirty, please wipe it off
with a softmaterial. (Cleaning with a dirty or rough cloth
may damage the panel.)
WARNING
BE CAREFUL ELECTRIC SHOCK !
· If you want to replace with the new backlight (CCFL) or
inverter circuit, must disconnect the AC adapter
because high voltage appears at inverter circuit about
650Vrms.
· Handle with care wires or connectors of the inverter
circuit. If the wires are pressed cause short and may
burn or take fire.
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.


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- 4 -
Mode
H/V
Sort
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
720 x 400
70Hz
H
­
31.47KHz
800
640
160
96
48
16
V
­
59.940Hz
525
480
45
2
33
10
640x350
85Hz
H
+
37.50KHz
840
640
200
64
120
16
V
+
75.0Hz
500
480
20
3
16
1
640 x 480
60Hz
H
­
31.50KHz
900
720
180
108
54
18
V
­
70.156Hz
449
400
49
3
34
12
640 x 480
75Hz
H
­
43.27KHz
832
640
192
56
80
56
V
­
85.008Hz
509
480
29
3
25
1
640 x 480
85
H
­
35.162KHz
896
720
176
40
102
34
V
­
59.901Hz
587
480
107
2
93
12
720 x 480
60Hz
H
­
37.927KHz
936
720
216
72
108
36
V
­
85.039Hz
446
400
46
3
42
1
720 x 400
85Hz
H
­
35.156KHz
1024
800
224
72
128
24
V
­
56Hz
625
600
25
2
22
1
800 x 600
56Hz
H
+
37.879KHz
1056
800
256
128
88
40
V
+
60.317Hz
628
600
28
4
23
1
800 x 600
60Hz
H
­
48.077KHz
1040
800
240
120
64
56
V
­
72Hz
666
600
66
6
23
37
800 x 600
72Hz
H
+
46.875 KHz
1056
800
256
80
160
16
V
+
75.0 Hz
625
600
25
3
21
1
800x600
75Hz
H
­
53.670KHz
1048
800
248
64
152
32
V
­
85.06Hz
631
600
31
3
27
1
800x600
85Hz
H
­
49.727KHz
1152
832
320
64
224
32
V
­
74.553Hz
667
624
43
3
37
3
832 x 624
(MAC 16")
75Hz
H
+
48.363KHz
1344
1024
320
136
160
24
V
+
60.004Hz
806
768
38
6
29
3
1024 x 768
60Hz
H
+
56.476KHz
1328
1024
304
136
144
24
V
+
70.069Hz
806
768
38
6
29
3
1024 x 768
70Hz
H
+
60.023KHz
1312
1024
288
96
176
16
V
+
75.029Hz
800
768
32
3
28
1
1024 x 768
75Hz
H
+
60.241KHz
1328
1024
304
96
176
32
V
­
74.927Hz
804
768
36
3
30
3
1024 x 768
(MAC 19")
75Hz
Sync
Polarity
Frequency
Dot
Clock
Back Porch
(F)
Front Porch
(B)
Resolution
28.35
31.5
25.175
31.5
36
31.505
35.5
36
40
50
49.5
56.25
57.285
65
75
78.75
80
<< Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >>
H
­
37.86KHz
832
640
192
64
96
32
V
­
85.08Hz
445
350
95
3
60
32
Sync Duration
(D)
Blanking
time(C)
Video Active Time
(A)
Total Period
(E)
TIMING CHART
VIDEO
SYNC
B
D
C
F
E
A