ViewSonic N2635w-1M, Service Manual

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2. Video
Built-in A/D converter shall provide analog to digital converter for this product.
Input Parameter Specification
CVBS Characteristics:
Video Amplitude Signal
DC Level Sync Pulse
0.7(min.) – 1.1(max.) V
Typical. 0.3 V
S-Video Characteristics:
Video Amplitude Signal Y : 1.0Vp-p W / Neg. Sync (IN 75 Ω )
C : 0.285Vp-p (IN 75 Ω )
Y, Pb, Pr Characteristics:
Video Amplitude Signal Y:1.0Vp-p (IN 75 Ω )
Pb:0.7 Vp-p(IN 75 Ω ),Pr:0.7 Vp-p (IN 75 Ω )
Video Bandwidth NTSC: 6 MHz Maximum
HDMI Characteristics Panel Link T.M.D.S HDMI-1.1
RGB Characteristics:
Signal Type
Sync Type
Input Signal Rating
Sync Level:
Frequency Range
Pixel Color
DDC Compliance
EDID Data Table
Analog VGA
TTL, Separate Sync, with 4.7K
Ω
pull-down resistors
1250mV Max without damage to the product, 0-700 mV Full Range
2.5-5.25 V
Horizontal: 30-82K Hz, Vertical: 50-75 Hz
16.7 M
DDC2B Compliant, Rev 1.3
Refer to Appendix
3. Audio
Audio amp of this product shall be provided by “Yamaha” with a Model Number of YDA138 .
“MTK” MT5730 for N2635w-M shall be used as sound processor. In addition, a pair of speakers
shall be integrated within this product. The audio signals of this product shall comply with the
specification listed in the following table.
Parameter Specification
Tuner Input Base band Input
Power Output Max
Rating
10W at 10 % T.H.D
Distortion
10W at 10% T.H.D Distortion
Speaker Impedance main spk :6 Ω main spk :6 Ω
Line In
Per Tuner Spec
158 mV rms (Typ)
1.6 V rms (Max)
Impedance: 600 ohms
Line Out
158 m Vrms +/- 10%
@1K Hz tone (with +/-25 Hz
deviation at input, volume
with non-attenuation and
loading with 47k Ohms) 158 m Vrms +/- 10%
@1K Hz tone (with +/-25 Hz
deviation at input, volume with
non-attenuation and loading with 47k
Ohms)
Flatness of Amplitude
Response
+/- 3 db (at 1KHz @1W) +/- 3 db (at 1KHz @1W)
Total Harmonic Distortion
(Po=0.1 to 1 W, f=1KHz)
<2% <2%
Signal to Noise:
30 dB (40Hz to 15KHz) 40 dB (400Hz to 20 kHz)
4.
Electrical
The following table defines the electrical specification of this product.
ViewSonic Corporation
Confidential - Do Not Copy
N
26
35w-1M
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