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E-mail: http://www.LGEservice.com/techsup.html
COLOR MONITOR
SERVICE MANUAL
MODEL:
L1918S (L1918S-BNQ/SNQ.A**MQP for
LPL TLB2, A**SQP for HSD A01, A**RQP for HSD D10,
A**OQP for LPL TLL1 & TLL3) **Sales Market
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
*To apply the MSTAR Chip.
CONTENTS
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 7
DISASSEMBLY ........................................................ 8
BLOCK DIAGRAM...................................................11
DISCRIPTION OF BLOCK DIAGRAM .................. 13
ADJUSTMENT ...................................................... 15
SERVICE OSD ........................................................16
TROUBLESHOOTING GUIDE .............................. 17
WIRING DIAGRAM ............................................... 23
EXPLODED VIEW...................................................24
REPLACEMENT PARTS LIST ...............................26
SCHEMATIC DIAGRAM ......................................... 37
SPECIFICATIONS
1. LCD CHARACTERISTICS
Type
: TFT Color LCD Module
Active Display Area : 19 inch
Pixel Pitch
: 0.294 (H) x 0.294 (V)
Color Depth
: 8bits, 16.7M colors
Size
: 396 (H) x 324 (V) x 16.5(D)
Electrical Interface
: LVDS
Surface Treatment
: Hard-coating(3H), Anti-Glare
Operating Mode
: Normally White, Transmissive mode
Backlight Unit
: 4-CCFL
4. Max. Resolution
D-sub Analog
5. POWER SUPPLY
5-1. Power : AC 100~240V, 50/60Hz , 0.8A
5-2. Power Consumption
MODE
Left : -70° min., -80°(Typ) Right : +70° min., +80°(Typ)
Top :+60° min., +75°(Typ) Bottom : -70° min., -85°(Typ)
: 250(min), 300(Typ) (Full White pattern, 0.7V) -6500K
: 150(min) (Full White pattern, 0.7V) -9300K
2-3. Contrast Ratio
: 500(min), 700(Tye)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
• Type
: Separate Sync, SOG
3-2. Video Input Signal
1) Type
2) Voltage Level
a) Color 0, 0
b) Color 7, 0
c) Color 15, 0
3) Input Impedance
: R, G, B Analog
: 0~0.71 V
: 0 Vp-p
: 0.467Vp-p
: 0.714Vp-p
: 75Ω
H/V SYNC VIDEO POWER CONSUMPTION LED COLOR
34 W(Typical)
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
less than 1 W
OFF
POWER ON (NORMAL)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio > 10
2-2. Luminance
: 1280 x [email protected]
POWER S/W OFF
ON/ON ACTIVE
-