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MENU
OK
COLOR MONITOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : CL-32
FACTORY MODEL: LS51K
MODEL: SDM-S51R


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CONTENTS
SPECIFICATIONS
- 2 -
1. LCD CHARACTERISTICS
Type
: TFT XGA LCD Module
Pixel Pitch
: 0.297mm x 0.297mm
Color Depth
: 6bits(with FRC)/ 16M colors
Active Video Area : 15.0inch (304.128 x 228.096)
Surface Treatment : Anti-Glare, Hard Coating (3H)
Backlight Unit
: Top/Bottom edge side 2CCFL
Electrical Interface : LVDS interface
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio
10
Left
: 55° min. 60°(typ)
Right
: 55° min. 60°(typ)
Top
: 40° min. 45°(typ)
Bottom : 40° min. 45°(typ)
2-2. Luminance: 180(min.), (9300K)
2-3. Contrast Ratio : 250(min.), 350(typ.)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
1) Type
: Separate Sync. (Horizontal & Vertical)
2) Input Voltage Level : Low=0~0.8V, High=2.1~5.5V
3) Sync Polarity
: Positive or Negative
3-2. Video Input Signal
1) Type
: R, G, B Analog
2) Voltage Level
: 0~0.714 V
a) Color 0, 0
: 0 Vp-p
b) Color 7, 0
: 0.467 Vp-p
c) Color 15, 0
: 0.714 Vp-p
3) Input Impedance
: 75
3-3. Operating Frequency
Horizontal
: 28 ~ 61kHz
Vertical
: 48 ~ 75Hz
4. POWER SUPPLY
4-1. Power
100~240V, 50/60Hz 0.6A
4-2. Power Consumption
5. ENVIRONMENT
5-1. Operating Temperature: 10°C~35°C (50°F~95°F)
(Ambient)
5-2. Relative Humidity
: 10%~80%
(Non-condensing)
5-3. MTBF
: 50,000 Hours (Min.)
Lamp Life
: 40,000 Hours (Min.)
6. DIMENSIONS (with TILT/SWIVEL)
Width
: 387mm (15.24'')
Depth
: 175mm (6.89'')
Height
: 330mm (12.99'')
7. WEIGHT (with TILT/SWIVEL)
Net. Weight
: 3.6kg (7.94 lbs)
Gross Weight
: 5.2kg (11.46 lbs)
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 4
OPERATING INSTRUCTIONS ................................ 5
WIRING DIAGRAM ................................................. 6
DISASSEMBLY ....................................................... 7
BLOCK DIAGRAM ................................................... 8
ADJUSTMENT ...................................................... 10
TROUBLESHOOTING GUIDE .............................. 11
PRINTED CIRCUIT BOARD................................... 15
EXPLODED VIEW...................................................16
REPLACEMENT PARTS LIST ...............................18
PIN CONFIGURATION............................................21
SCHEMATIC DIAGRAM ........................................ 25
MODE
POWER ON (MAX)
STAND-BY
SUSPEND
DPMS OFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
-
POWER CONSUMPTION
less than 25 W
less than 3 W
less than 3 W
less than 2 W
LED COLOR
GREEN
AMBER
AMBER
AMBER
VIDEO
ACTIVE
OFF
OFF
-


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- 3 -
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.
PRECAUTION
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.


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TIMING CHART
- 4 -
VIDEO
SYNC
B
D
C
F
E
A
H / V
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
Sync
Polarity
­
­
­
­
­
­
­
+
­
­
­
­
+
+
­
­
+
+
­
­
­
­
­
­
­
­
+
+
­
­
Dot
Clock
28.350
25.175
30.240
31.5
31.505
36.0
40.0
50.0
49.5
57.285
65
71.640
75
78.75
80.00
Frequency
31.50 KHz
70.156 Hz
31.469 KHz
59.940 Hz
35.00 KHz
66.667 Hz
37.50 KHz
75.0 Hz
35.162 KHz
59.901 Hz
35.156 KHz
56.25 Hz
37.879 KHz
60.317 Hz
48.077 KHz
72.188 Hz
46.875 KHz
75.0 Hz
49.727 KHz
74.553 Hz
48.363 KHz
60.004 Hz
53.946 KHz
66.110Hz
56.476 KHz
70.069 Hz
60.023 KHz
75.029 Hz
60.241KHz
74.928Hz
Resolution
720 x 400
640 x 480
640 x 480
640 x 480
720 x 480
800 x 600
800 x 600
800 x 600
800 x 600
832 x 624
(MAC 17")
1024 x 768
1024 x 768
1024 x 768
1024 x 768
1024 x 768
(MAC 19")
Total
Period
( E )
900
449
800
525
864
525
840
500
896
587
1024
625
1056
628
1040
666
1056
625
1152
667
1344
806
1328
816
1328
806
1312
800
1328
804
Video
Active
Time ( A )
720
400
640
480
640
480
640
480
720
480
800
600
800
600
800
600
800
600
832
624
1024
768
1024
768
1024
768
1024
768
1024
768
Blanking
Time
( B )
180
49
160
45
224
45
200
20
176
107
224
25
256
28
240
66
256
25
320
43
320
38
304
48
304
38
288
32
304
36
Sync
Duration
( D )
108
3
96
2
64
3
64
3
40
2
72
2
128
4
120
6
80
3
64
3
136
6
176
4
136
6
96
3
96
3
Back
Porch
( F )
54
34
48
33
96
39
120
16
102
93
128
22
88
23
64
23
160
21
224
37
160
29
112
36
144
29
176
28
176
30
Front
Porch
( C )
18
12
16
10
64
3
16
1
34
12
24
1
40
1
56
37
16
1
32
3
24
3
16
8
24
3
16
1
32
3
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15


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OPERATING INSTRUCTIONS
- 5 -
FRONT VIEW
REAR VIEW
Front Control Panel
MENU
OK
Power Connector
See front control panel
D-Sub Signal
Connector
MENU
OK
MENU
OK
1
2
3
4
5
6
1. Power switch and indicator
This switch turns the dislay on and off.
This power indicator lights up in green when the
display is turned on, and lights up in orange when
the monitor is in power saving mode.
2. MENU Button
This button display or close the main menu.
3.
(Contrast) Button
This button displays the Contrast menu.
4.
(Brightness) Button
This button displays the Brightness menu.
5.
Buttons
These buttons function as the
buttons when
selecting the menu items and making adjustments.
6. OK Button
This button select the item or executes the settings
in the menu.