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Acer AL1921 - TECHNICAL SUPPORT (FAQ)

Acer AL1921
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13
Panel Relative Humidity
Input Signals
Video input
Type Analog R, G, B.
Input Impedance 75 ohm +/- 2%
 Polarity Positive
Amplitude 0 - 0.7 +/- 0.05 Vp
Display Color same as LCD panel
Sync input
Signal separate horizontal and vertical sync, or composite sync
which are TTL compatible
Polarity positive and negative.
Interface frequency
The following frequency range is generalized by supported timing. If the entered mode does
not match the supported timing the display optimization will not be assured.
Horizontal Frequency 30KHz --83KHz
Vertical Frequency 55Hz -----75Hz
Panel bright dot defect and dark dot defect
Test conditions:
1280*1024,64KHz/60Hz
R.G.B.Full White and Full Black Pattern RECALL
1. Bright Dots: R.G or B dots 3dots (G dots <3dots)
2. Adjacent dot<1 groupTotal bright dots 3dots
3. Dark Dots: -R.G or B dots 5dots - 2 adjacent dot<2 group Total dark dots 5dots
4. Total(Dark & Bright) 7dots

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