BenQ Q7T4-FP71G, Service Manual

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Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
9
Confidential
3.9 Audio performance
Item Condition Spec OK N.A Remark
Power amp
(1)Output power
1 Wrms/CH @ 1KHz
√
(2)THD (@ 1W)
<1%
√
(3)S/N ratio >40dB
√
Speaker Driver
(1)Nominal impedance 8 ohm
√
(2)Rated input power 2 W/CH
√
(3)Frequency response
180~20KHz SPL-10dB
√
(4)
Output sound pressure level 84 ± 3 dB (1W 0.5M)
√
(5)Dimension of box
62x33cx20 mm
2
√
Audio Control
(1)Volume range
0 ~100 levels
√
(2)Mute On/Off
√
4. LCD Characteristics
4.1 The Physical definition & Technology summary of LCD panel
Item Condition Spec OK N.
A
Remark
LCD Panel Supplier AUO
√
Panel type of Supplier
M170EG01 V1
√
Screen Diagonal
432mm(17.0”)
√
Display area Unit=mm 337.920(H) x 270.336(V)
√
Physical Size Unit=mm 358.5(H) x 296.5(V) x 17.0 (D) (typ.)
√
Weight Unit=gram 1900 (typ.)
√
Technology
TN type
√
Pixel pitch
Unit=mm 0.264 x 0.264
√
Per one triad
Pixel arrangement R/G/B vertical stripe
√
Display mode Normally white
√
Support color
16.2M colors (RGB 6-bits + FRC data)
√
4.2 Optical characteristics of LCD panel
Item Unit Conditions Min. Typ. Max. Remark
[degree]
[degree] Horizontal (Right)
CR = 10 (Left) 60
60 70
70 -
-
Viewing Angle
[degree]
[degree] Vertical (Up)
CR = 10 (Down) 60
50 70
60 -
-
Contrast ratio Normal Direction 250 450
[msec] Rising Time - 12 20
[msec] Falling Time - 4 5
Response Time
[msec] Falling - 16 25
Red x 0.61 0.64 0.67
Color / Chromaticity
Red y 0.31 0.34 0.37