ViewSonic N4285p-4M Service Manual page 7

2. Video
Built-in A/D converter shall provide analog to digital converter for this product.
Input Parameter
CVBS Characteristics:
Video Amplitude Signal
DC Level Sync Pulse
S-Video Characteristics:
Video Amplitude Signal
Y, Pb, Pr Characteristics:
Video Amplitude Signal
Video Bandwidth
HDMI Characteristics
RGB Characteristics:
Signal Type
Input Signal Rating
Sync Type
Sync Level:
Frequency Range
Pixel Color
DDC Compliance
EDID Data Table
3. Audio
Audio amp of this product shall be provided by "YAMAHA" with a Model Number of YDA148 .
"SiS" SiS328MX for N4285p-4M 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
Power Output Max Rating
Speaker Impedance
Line In
Line Out
Flatness of Amplitude
Response
Total Harmonic Distortion
(Po=0.1 to 1 W, f=1KHz)
Signal to Noise:
ViewSonic Corporation
0.7(min.) – 1.1(max.) V
Typical. 0.3 V
Y : 1.0Vp-p W / Neg. Sync (IN 75 Ω )
C : 0.285Vp-p (IN 75 Ω )
Y:1.0Vp-p (IN 75 Ω)
Pb:0.7 Vp-p(IN 75 Ω),Pr:0.7 Vp-p (IN 75 Ω)
NTSC: 6 MHz Maximum
Panel Link T.M.D.S HDMI-1.3
Analog VGA
1250mV Max without damage to the product, 0-700 mV Full Range
TTL, Separate Sync, with 4.7KΩ pull-down resistors
2.5-5.25 V
Horizontal: 30-82K Hz, Vertical: 55-75 Hz
16.7 M
DDC2B Compliant, Rev 1.3
Refer to Appendix
Tuner Input
10W at 10 % T.H.D Distortion
main spk :6 Ω
Per Tuner Spec
500 mV rms +/- 10%
@1K Hz tone (with +/-25 Hz deviation at
input, volume with non-attenuation and
loading with 47k Ohms)
+/- 3 dB (at 1KHz @1W)
<2%
30 dB (40Hz to 15KHz)
4
Specification
Specification
Base band Input
10W at 10% T.H.D Distortion
main spk :6 Ω
500 mV rms (Typ)
1.6 V rms (Max)
Input Impedance: 47K ohms
500 mV rms +/- 10%
@1K Hz tone (with +/-25 Hz
deviation at input, volume with
non-attenuation and loading with
47k Ohms)
+/- 3 dB (at 1KHz @1W)
<2%
40 dB (400Hz to 20 kHz)
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N4285p-4M