LG Flatron L1552S, Service Manual

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CONTENTS
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 7
DISASSEMBLY ....................................................... 8
BLOCK DIAGRAM ................................................... 9
DESCRIPTION OF BLOCK DIAGRAM....................10
ADJUSTMENT ...................................................... 12
SERVICE OSD ...................................................... 13
TROUBLESHOOTING GUIDE .............................. 14
WIRING DIAGRAM ............................................... 18
EXPLODED VIEW...................................................19
REPLACEMENT PARTS LIST ...............................21
SCHEMATIC DIAGRAM......................................... 23
1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Active Display Area : 15 inch
Size : 326.5(W) x 253.5(H) x 11.2(D)
Pixel Pitch : 0.297 (H) x 0.297 (V)
Color Depth : 6bit with FRC, 16M clolors
Electrical Interface : LVDS
Surface Treatment : Hard-coating(3H), Anti-Glare
Operating Mode : Normally White, Transmissive mode
Backlight Unit : 2-CCFL
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio ≥ 10
CPT TN
Left : 60°min. Right : 70°(Typ)
Top : 50°min., 60°(Typ) Bottom : 55°min., 65°(Typ)
LPL TN
Left : 55°min., 65°(Typ) Right : 55°min., 65°(Typ)
Top : 40°min., 45°(Typ) Bottom : 50°min., 55°(Typ)
2-2. Luminance : 200(min), 250(Typ)
2-3. Contrast Ratio : 300(min), 400(Typ)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
• Type : Separate Sync.
3-2. Video Input Signal
1) Type : R, G, B Analog
2) Voltage Level : 0~0.71 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 Ω
3-3. Operating Frequency
Horizontal : 30 ~ 63kHz
Vertical : 56 ~ 75Hz
4. Max. Resolution
D-sub Analog : 1024 x 768@75Hz
5. POWER SUPPLY
5-1. Power : AC 100~240V, 50/60Hz ,
0.6
A
5-2. Power Consumption
6. ENVIRONMENT
6-1. Operating Temperature : 10°C~35°C
6-2. Relative Humidity : 10%~80%
6-3. MTBF : 50,000 HRS with 90%
Confidence level
Lamp Life : 40,000 Hours(Min)
7. DIMENSIONS (with TILT/SWIVEL)
Width :
332
mm (1
3.07
'')
Depth :
180
mm (
7.08
'')
Height :
339
mm (
13.35
'')
8. WEIGHT (with TILT/SWIVEL)
Net. Weight :
2.1
kg (
4.63
lbs)
Gross Weight : 5.0 kg (11.02 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 1 W
less than 17W
less than 1 W
less than 1 W
less than 1 W
LED COLOR
BLUE
or GREEN
AMBER
AMBER
AMBER
OFF
VIDEO
ACTIVE
OFF
OFF
OFF
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