6
◆
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
a
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Summary of Contents for L520B
Page 36: ...34 5 No Video ...
Page 42: ...40 TDA 8752 Section SCHEMATIC DIAGRAM ...
Page 43: ...DVI Receiver Section 41 ...
Page 44: ...Video Decoder Section 42 ...
Page 45: ...Micro Controller Section 43 ...
Page 46: ...ASI 310 Section 44 ...
Page 47: ...LCD Panel Interface Section 45 ...
Page 48: ...Power Distribution Section 46 ...
Page 49: ...Jack PCB Section 47 ...
Page 50: ...Key and TV Tuner Section 48 ...
Page 51: ...EXPLODED VIEW MECHANICAL PARTS LIST 49 ...
Page 72: ......