Acer AT2001, Руководство по обслуживанию

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RF Input
Indication of input level : 75
Ω
terminate value
No. PARAMETER MIN TYP MAX UNIT NOTE
1 Video Output Level 0.6 0.9 1.2 Vp-p
2 Video S/N 40 45 --- dB
3 Noise limiting --- 38 45 dbuV
2 MHz --- 0.0 -1.5 dB
3 MHz --- -0.5 -2.5 dB
4 Video amplitude
at discrete
frequencies
4.43 MHz --- -1.0 -4.0 dB
5.5/6M
hz 42 --- dB 5 Sound carriers rejection
6.5
MHz 40 --- dB
6 Audio S/N 50 63 --- dB
7 Frequency Range for PAL 55.25 801.2
5 MHZ
8 Audio sensitivity 40 dBuV
VGA Input
Separate Sync:
Level: Low = 0 to 0.8V High = 2.0 to 5 V
Polarity: Positive or Negative
Impedance: 1 k ohm or higher
R.G.B. Input Signal:
(comply with VESA)
Level: 0 to 700mv Positive
Rise/Fall time: < 5ns
Overshoot:
< 10% of maximum transition.
Impedance: 75
Ω
± 5%
Current Sink and Source
When low level is asserted, the maximum current sink from any single monitor sync input node to the
driver is 2.0mA. When high level is asserted, the maximum current source from the driver to any single
monitor sync input node is 500uA.