JVC LT-26DC9BH, Service Manual

Page: 9 / 95

(No.YA606<Rev.002>)1-9
2.4 TECHNICAL INFORMATION
2.4.1 LCD PANEL
This unit uses the flat type LCD (Liquid Crystal Display) panel that occupies little space, instead of using the conventional
CRT(Cathode Ray Tube). This panel adopts "normally white" mode where the transmittance or reflective rate is maximum, and the
screen is white when no voltage is applied.
2.4.1.1 SPECIFICATIONS
The following table shows the specifications of this unit.
2.4.1.2 PIXEL FAULT
There are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows.
„
BRIGHT FAULT
In this pixel fault, a cell that should not light originally is lighting on and off.
For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.
„ DARK FAULT
In this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting.
For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.
„ FLICKER FAULT
In the pixel fault, a cell that should light originally or not light originally is flashing on and off.
For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing on
and off.
Item Specifications
Maximum dimensions ( W
×
H
×
D ) 626.0 mm
×
373.0mm
×
42.0 mm
Weight 4.5 kg
Effective screen size Diagonal : 66.0 cm (H: 57.6 cm
×
V: 32.3 cm)
Aspect ratio 16 : 9
Drive device / system a-Si-TFT active matrix system
Resolution Horizontally 1366
×
Vertically 768
×
RGB < W-XGA > 3147264 dots in total
Pixel pitch (pixel size) Horizontally: 0.1405 mm, Vertically: 0.4215 mm
Displayed color 16777216 colors 256 colors for R G and B
Brightness 500cd/m2
Contrast ratio 800 : 1
Response time ( Tr + Tf ) less than 8 ms
View angle (Horizontally) 160
°
View angle (Vertically) 160
°
Surface polarizer Anti-Glare type Low reflective coat
Color filter Vertical stripe
Backlight Cold cathode fluorescent lamp
×
12
Power supply voltage in LCD 5 V
Power supply voltage in inverter 24 V
Panel interface system LVDS (Low Voltage Differential Signaling)