Service manual

ViewSonic Corporation Confidential - Do Not Copy VA2012w-2_VA2012wb-2
7
AUDIO INTERFACE (SPEAKER SPECIFICATION)
Line input connection 3.5 mm stereo jack
Line input signal 1.3 Vrms
Line input impedance 10 kOhm
Maximum power output (Electric) 1 W @ < 5% distortion
Signal to Noise Ratio 72 dB
Frequency response 200 Hz – 20 Khz
Distortion < 5 % THD (@1kHz)
Vibration
There should be no audible vibration with volume at 100% and
treble / bass at default
Screen image
There should be no affect on the screen image stability under any
conditions
Connector PC99 requirement Audio in Lime Green pantone # 577C
Cable type / length 3.5mm stereo cable / 1.8m length
Panel Characteristics:
1
st
Source Panel
QDI QD20AL01
Type TN Technology”
Active Size 433.44 (H) x 270.9 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.258 mm
Glass Treatment Anti Glare (Hard coating 3H)
# of Backlights 6 CCFL edge-light (3 top / 3 bottom)
Backlight Life 40,000 Hours (Min)
Luminance – Condition:
CT = 6500K, Contrast = Max, Brightness = Max
300 cd/m2 (Typ after 30 minute warm up)
240 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity 77 % Entire Area (typ)
Contrast Ratio 600:1 (Typ), 400:1 (Min)
Color Depth 16.2 million colors (6 bit panel)
Viewing Angle (Horizontal) 140 deg @ CR>10, 160 deg @ CR>5
Viewing Angle (Vertical) 125 deg @ CR>10, 140 deg @ CR>5
Response Time
10%-90% @ Ta=25°C
8 ms (Tr= 2 ms, Tf = 6 ms) (Typ)
16 ms (Tr= XXX ms, Tf = XXX ms) (Max)
Panel Defects Please see Panel Quality Specifications.