LG E1942S, Service Manual, Page: 3 / 21

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CONTENTS
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 4
TIMING CHART ....................................................... 8
DISASSEMBLY ....................................................... 9
BLOCK DIAGRAM ................................................. 11
DESCRIPTION OF BLOCK DIAGRAM...................12
ADJUSTMENT ...................................................... 14
TROUBLESHOOTING GUIDE .............................. 16
WIRING DIAGRAM ............................................... 19
EXPLODED VIEW...................................................20
REPLACEMENT PARTS LIST ...............................22
SCHEMATIC DIAGRAM ......................................... 26
1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Active Display Area :
18.5
inch diagonal
Pixel Pitch : 0.
3
(H) x 0.
3
(V)
Size :
430.3
(H) x
254.6
(V) x
10.5
(D)
Color Depth :
16
.
7
M
colors
(
6-bit with A-FRC
)
Electrical Interface :
1
ch-LVDS
Surface Treatment : Anti-Glare, Hard Coating(3H)
Operating Mode : Normally White
Backlight Unit
: White LED
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio >10
2-3. Contrast Ratio :
7
00(min), 1000(TYP)
DFC ->
5000
000 : 1(TYP)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
3-2. Video Input Signal
1) Type : R, G, B Analog
2) Voltage Level : 0~0.7 V
3) Input Impedance : 75
Ω
3-3. Operating Frequency
4. MAX. RESOLUTION
Analog :
1366 x 768@60Hz
5. POWER SUPPLY
5-1. Power Adaptor(Built-in Power)
Input : AC 100-240 V~, 50/60 Hz, 1.
0
A
5-2. Power Consumption
6. ENVIRONMENT
6-1. Operating Temperature : 10°C~35°C (50°F~95°F)
6-2. Relative Humidity
: 10%~80% (Non-condensing)
6-3. MTBF :
3
0,000 HRS with 90%
Confidence level
Lamp Life :
3
0,000 Hours (Min)
7. DIMENSIONS (with TILT)
Width :
44.1 c
m (
17.36
'
'
)
Depth :
16.8
c
m (
6.61
'' )
Height :
34.9
c
m (
13.7
'')
8. WEIGHT (with TILT/SWIVEL)
Net. Weight :
2.1
kg (
4.62
lbs)
Gross Weight :
3.2
kg (
7.04
lbs)
SPECIFICATIONS
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
18
W(max)
less than
15
W(typ)
LED COLOR
OFF
VIDEO
ACTIVE
OFF
OFF
OFF
-
Copyright
Only for training and service purposes
LGE Internal Use Only
Horizontal:
Left:+85°, -85°(Typ) Right: +85°, -85°(Typ)
Vertical:
Top:+75°, -85°(Typ) Bottom: +75°, -85°(Typ)
RED
BLINKING
less than 0.3 W
less than 0.3 W
less than 0.3 W
less than 0.3 W
2010 LG Electronics. Inc. All right reserved.
2-2. Luminance
: 200(min),250(Typ)(Full white pattern,0.70V),
WARM
:150
（
min)
（
Full whitepattern,0.70V),
MEDIUM
: 150(min)(Full white pattern,0.70V),
COOL
Horizontal : 30 ~ 61kHz
Vertical : 56 ~ 75Hz
Analog:
RED
BLINKING
RED
BLINKING
RED
Super Energy Saving On/Off On RED
Efficiency:
up to30%
• Type : Separate Sync