LG Flatron M203WA, Service Manual, Page: 2 / 37

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1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Size : 258.0(H) x 400.0(V) x 22.0(D)
Pixel Pitch : 0.291mm x 0.291mm
Color Depth : 8bits/ 16.7M colors
Active Video Area : 20.1inches diagonal
Surface Treatment : Anti-Glare, Hard Coating (3H)
Backlight Unit
: 6CCFL
Opraating Mode : Transmissive mode, Normally Black
Electrical Interface : LVDS interface
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio
≥
10
Right : +88° typ. Left : -88° typ.
Top : +88° typ. Bottom : -88° typ.
2-2. Luminance: 220(min.), 300(typ.)
2-3. Contrast Ratio : 400(min.), 600(typ.)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
1) Type : Separate Sync, Composite, SOG, Digital
3-3. Operating Frequency
Horizontal : 30 ~ 83kHz
Vertical
: 55 ~ 75Hz
4. SPECIAL FUNCTION
4-1. Audio AMP
1) Output: 5Wrms + 5Wrms (Rated Out put
±
10%)
2) Freq. Character: 250Hz~20KHz Range(-3dB)
3) Input: PC - 0.7
±
0.1Vrms
AV - 0.5
±
0.1Vrms
4-2. SPEAKER
1) Impedance : 16
Ω
2) Input : Max +8W, 5W
4-3. TV
1) Type : PAL
2) Tuner IF : PIF - 38.9MHz
SIF - 33.4MHz
CIF - 34.47MHz
3) Receiving Channel : VHF- Low: 45.25~140.25MHz
HIGH: 147.25~423.25MHz
UHF - 431.25~855.25MHz
4-4. AV
1) Video Level : Input - 0.7 ± 0.15Vp-p
2) Sync Level : Input - 0.286 ± 0.075Vp-p
3) Color Burst : Input - 0.214 ± 0.072Vp-p
4) Audio Level : AV Input - 0.5
±
0.1Vrms
PC Input - 0.7
±
0.1Vrms
5) Video Cross Talk : 43dB
5. Max Resolution
WSXGA : 1680 x 1050@60Hz
6. POWER SUPPLY
6-1. Power
100-240V~, 50/60Hz
6-2. Power Consumption
7. ENVIRONMENT
7-1. Operating Temperature: 10°C~35°C
7-2. Operating Humidity
: 20%~80%
7-3. MTBF : 50,000 Hours (Min.)
8. DIMENSIONS(WxLxH)
Width : 505.5 mm (14.17'')
Depth : 231.5 mm (6.02'')
Height : 365 mm (14.17'')
9. WEIGHT (with TILT)
Net. Weight : 6.6kg (14.55 lbs)
Gross Weight : 10.0 kg (22.05 lbs)
CONTENTS
SPECIFICATIONS
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
SERVICE PRECAUTIONS ...................................... 4
TIMING CHART ....................................................... 7
DISASSEMBLY ....................................................... 8
BLOCK DIAGRAM ................................................... 9
DESCRIPTION OF BLOCK DIAGRAM ................. 10
ADJUSTMENT ...................................................... 12
TROUBLESHOOTING GUIDE .............................. 15
WIRING DIAGRAM ............................................... 20
EXPLODED VIEW...................................................21
REPLACEMENT PARTS LIST ...............................23
SCHEMATIC DIAGRAM ......................................... 30
MODE
POWER ON (NORMAL)
STAND-BY
SUSPEND
POWER OFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
OFF
POWER CONSUMPTION
less than 74 W
normal-68W, max-74W
less than 4 W
less than 4 W
less than 2 W
VIDEO
ACTIVE
OFF
LED COLOR
BLUE
AMBER