Service manual

Current Rating 4.0A
3.2 LCD
LCD Chi-Mei panel(TFT-MVA)
Effective display size 357.12 (H) x 285.696 (V) mm (typ)
18.0” / 46 cm diagonal
Pixel number 1280 x 1024 pixels
Color filter arrangement R.G.B. vertical stripe
Display method TFT, normally black
Drive method Active matrix (TFT) - MVA
Dot pitch 0.093 (H) x 0.279 (V) mm
Pixel pitch 0.279 (H) x 0.279 (V) mm
Dot number 1280 x 1024 x 3 dots
Backlight Edge-lighting type with 6 CCFLs
(Cold Cathode Fluorescent Tube)
Brightness 250 cd/m
2
(typ),200 cd/m
2
(min: center / all white)
Contrast ratio 600 :1 (max), 400:1(typ), 300:1(min)
Display color 16,777,216
Minimum viewing angle Up 80° / down 80° / right 80° / left 80°
(Contrast ratio>10 at Ta=25°C, 77°F)
Response time 30 msec (Typical at 25 degree C)
3.3 Interface Signals
3.3.1 RGB Video Signals
3.3.1.1 Separate Sync . Signals
Analog R,G,B 0 - 0.7 Vp-p
Signal Level 75Ө± 5%
Sync Level TTL level
Sync Polarity independent
3.3.1.2 Sync On green, Composite Sync
3.3.2 Audio spec.
3.3.2.1 Line input connection
3.5 mm stereo jack x 1
3.3.2.2 Line input signal & impedance
1.0 Vrms, 10 kOhm
3.3.2.3
OUTPUT SIGNAL AT SPEAKER TERMINAL
Vp-p(out) >= 5 Vp-p
@ < 10 % distortion
3.3.2.4 Frequency Response
300 Hz – 20 Khz
ViewSonic Corporation
Confidential – Do Not Copy
VG800b
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