Input Signals - Acer AL1916 Service Manual

opposite boxes, A&C or B&D. Btgt will only be displayed for aligning the LMD. It will be
turned off for the actual measurement.
♦
The target box point (Btgt) will be measured with the source box (Bsrc) turned on then off.
(Btgt is for alignment purpose only) Display the background only at level Gbkg. Display
Btgt determined in step 2 above. Using the correct distance, angle, and measurement
aperture, align the LMD to the center of the Btgt. Turn off Btgt. With Gbkg set to its
proper level, measure the luminance (or color). Next,turn on the source box Bsrc. Again
measure at the center point of Btgt (without Btgt present.). In this case the LMD will be
measuring the shadowing level, Lsh.
Panel Relative Humidity

Input Signals

Video input
•
Type
•
Input Impedance
•
Polarity
•
Amplitude
•
Display Color
Sync input
•
Signal
•
Polarity
Analog R, G, B.
75 ohm +/- 2%
Positive
0 - 0.7 +/- 0.05 Vp
same as LCD panel
separate horizontal and vertical sync, or composite sync
which are TTL compatible
positive and negative.
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