Daewoo L520B, Service Manual

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Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as possible to diode body.
2. Bend the two remaining leads perpendicularly to the circuit board.
3. Observing diode polarity, wrap each lead out of the new diode around the corresponding lead on the
circuit board.
4. Securely crimp each connection and solder it.
5. Inspect the solder joints of the two “original” leads on the circuit board copper side. If they are not
shiny, reheat them and apply additional solder if necessary.
TECHNICAL INFORMATION
Panel Size 15-inch (38 cm) diagonal
Pixel Pitch 0.297 x 0.297 mm
Viewing Angle 60°(Right/Left)
40°(up), 60°(down)
Contrast Ratio 350:1 contrast ratio (typ)
Brightness 250cd/m 2 brightness(typ)
Color Filter RGB vertical stripe
Synchronization Horizontal 30 - 62 KHz
Vertical 50 - 75 Hz
Video Bandwidth 80 MHz
Max Resolution 1024 x 768 75Hz
Optimal Resolution 1024 x 768 60Hz
Colors 6 bit (16.7M Colors)
Display Area 304.1 mm x 228.1 mm
PC Input Signal Sync H/V separate (TTL)
Video 15 pin mini D-sub(Analog RGB)
DVI-D(Option)
AV Input Signal Video CVBS(RCA), S-Video(Mini-DIN)
(L520BAV only) Audio RCA Left+Right Input
Stereo Mini Jack Input & Output
TV Receiving Signal TV Tuner NTSC, PAL
(Option)
External Speaker Output 4W(Left 2W+Right 2W)
(L520BM/L521BM/L520BAV only)
Plug and Play VESA DDC Compatible
Power Source 100-240 Vac, 50/60 Hz (Free Voltage)
Power Consumption 26 W(without speaker)
Dimension-W x H x D 370 x 352 x 205 mm(with stand)
(without speaker) 370 x 312 x 60 mm(without stand)
Weight-net/gross 4.2 / 5.5 Kg (9.2 / 12.1 lbs)
Power Saving EPA, VESA DPMS, Nutek Compliant
Tilt Range 5° forward, 30° backward
Operating Temperature 10 ~ 40°C /50 ~ 104°F
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