ViewSonic N1900w-1E Service Manual page 8

RF tuner
Parameter
RF Input Level
RF Tuning Range
RF Tuner Sensitivity (S/N Ratio at
un-weight)
Channel Bandwidth
3. Power
Power Supply
Input Voltage Range
Power Dissipation
4. Audio Interface (Speaker Specification)
Parameter
Speaker Power Output
Max Rating
Speaker Impedance
Line In
Line Out
Flatness of Amplitude
Response
(100Hz ~ 10KHz)
Total Harmonic
Distortion
(1KHz @1W)
Signal to Noise
(1KHz @1W)
Stereo Separation
(20Hz ~ 20Khz)
5. Electrical Requirements
Horizontal Frequency
Vertical Refresh Rate
Maximum Pixel Clock
Sync Polarity
ViewSonic Corporation
0~+15 dB mV
PAL: 48.25 to 855.25 MHz Off-Air and CATV
45 dB (min.)
PAL: 7/8 MHz Maximum
SECAM: 8 MHz Maximum
110 to 240 VAC
55 Watts (Typ.)
Tuner Input
2.5 W x 2 at 10% T.H.D
Distortion
4 Ω
Per Tuner Spec
NA
+/- 3 dB (at 1KHz @1W)
2%
30 dB min
MONO
30 – 82 kHz
50 – 75 Hz.
135 MHz
Independent of sync polarity.
5
Specification
Specification
Phone Jack out
Base band Input
2.5 W x 2 at 10% T.H.D. Distortion
4 Ω
500 mV rms (Typ)
1V rms (Max)
NA
+/- 3 dB (at 1KHz @1W)
1%
35 dB min
40dB at 100Hz ~ 10 kHz
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N1900w-1E