LG Electronics L1933TR, L1733TR service manual Contents, Specifications

CONTENTS

SPECIFICATIONS	2
PRECAUTIONS	3
TIMING CHART	7
DISASSEMBLY	8
BLOCK DIAGRAM	12
DISCRIPTION OF BLOCK DIAGRAM	14
ADJUSTMENT	16

SERVICE OSD	17
TROUBLESHOOTING GUIDE	18
WIRING DIAGRAM	24
EXPLODED VIEW	25
REPLACEMENT PARTS LIST	27
SCHEMATIC DIAGRAM	31

SPECIFICATIONS

1. LCD CHARACTERISTICS

Type	: TFT Color LCD Module
Active Display Area	: 17 inch - L1733T
	: 19 inch - L1933T
Pixel Pitch	: 0.264 (H) x 0.264 (V) - L1733T
	: 0.294 (H) x 0.294 (V) - L1933T
Color Depth	: 8bits, 16.2M colors
Size	: 358.5 (H) x 296.5 (V) x 17.0(D) - L1733T
	: 396 (H) x 324 (V) x 17.5(D) - L1933T
Electrical Interface	: LVDS
Surface Treatment	: Hard-coating(3H), Anti-Glare
Operating Mode	: Normally White, Transmissive mode
Backlight Unit	: 4-CCFL

2.OPTICAL CHARACTERISTICS

2-1. Viewing Angle by Contrast Ratio ≥ 10

Left : -60° min., -70°(Typ)			Right : +60° min., +70°(Typ)
Top :+60° min., +75°(Typ)			Bottom : -50° min., -65°(Typ)
2-2.	Luminance	: 230(min), 300(Typ) (Full White pattern, 0.70V) -6500K
		: 150(min) (Full White pattern, 0.70V) -9300K
		75%(min)
2-3.	Contrast Ratio	: 1400:1 (DFC)

3.SIGNAL (Refer to the Timing Chart) 3-1. Sync Signal

• Type		: Separate Sync, Digital, SOG
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			: 0.467Vp-p
c) Color 15, 0			: 0.714Vp-p
3)	Input Impedance : 75Ω
3-3. Operating Frequency
Horizontal			: 30 ~ 83kHz
Vertical			: 56 ~ 75Hz

4. Max. Resolution
D-sub Analog	: 1280 x 1024@75Hz
Digital	: 1280 x 1024@60Hz

5.POWER SUPPLY

5-1. Power : AC 100~240V, 50/60Hz , 0.6A

5-2. Power Consumption

MODE	H/V SYNC	VIDEO	POWER CONSUMPTION	LED COLOR
POWER ON (NORMAL)	ON/ON	ACTIVE	less than 33 W -L1733T	BLUE
			less than 37 W -L1933T	or GREEN
STAND-BY	OFF/ON	OFF	less than 1 W	AMBER
SUSPEND	ON/OFF	OFF	less than 1 W	AMBER
DPMS OFF	OFF/OFF	OFF	less than 1 W	AMBER
POWER S/W Off	-	-	less than 1 W	OFF

6.ENVIRONMENT

6-1. Operating Temperature : 10°C~35°C (50°F~95°F)

	(Ambient)
6-2. Relative Humidity	: 10%~80% (Non-condensing)
6-3. MTBF	: 50,000 HRS with 90% Confidence
Lamp Life	: 50,000 Hours(Min)
7. DIMENSIONS (with TILT/SWIVEL)
L1733T
Width	: 364.5 mm (14.35'')
Depth	: 180 mm (7.09'')
Height	: 378.2 mm (14.89'')
L1933T
Width	: 402 mm (15.83'')
Depth	: 180 mm (7.09'')
Height	: 407.5 mm (16.04'')

8.WEIGHT (with TILT/SWIVEL) L1733T

Net. Weight	: 3.5 kg (7.72 lbs)
Gross Weight	: 4.6 kg (10.14 lbs)
L1933T
Net. Weight	: 4.4 kg (9.70 lbs)
Gross Weight	: 5.6 kg (12.35 lbs)

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Only for training and service purposes	- 2 -