20 19B4LP LCD
Electrical Instructions
Electrical characteristics
1. Interface signals
1.1 D-Sub Analog (optional for 19S4L / 19S4LA / 19S4LC)
Input signal: Video, Hsync., Vsync
Video: 0.7 Vp-p, input impedance, 75 ohm @DC
Sync.: Separate sync TTL level , input impedance 2.2k ohm terminate
Hsync Positive/Negative
Vsync Positive/Negative
Composite sync TTL level, input impedance 2.2k ohm terminate (Positive/Negative)
Sync on green video 0.3 Vp-p Negative (Video 0.7 Vp-p Positive)
1.2 DVI-D Digital
Input signal: Single TMDS link (Three channels: RX0-/+, RX1-/+, RX2-/+)
2. Interface
2.1 D-Sub Cable
Length : Please refer to
M4 cable bundle summary file
Fix with monitor when packing, with transplant pin protective cover.
Connector type : D-Sub male with DDC2B pin assignments.
Blue connector thumb-operated jack screws
2.2 DVI Cable
The input signals are applied to the display through DVI-D cable.
Length : Please refer to
cable bundle summary file
Connector type : DVI-D male with DDC-2B pin assignments
White connector thumb-operated jackscrews
With transplant pin protective cover.
3. Timing requirement
3.1 Factory Preset mode definitions:
3.1.1 Perfect FOS while presenting those timings.
3.1.2 Will specify those timing in User's Manual
3.2 Preset mode definition:
3.2.1 Need to support those timings.
3.2.2 Perfect FOS after auto adjustment.
3.3 User mode
3.3.1 Can save those timing that not in Preset mode and can be showed
(not over scalar or Panel spec.)
3.3.2 It needs to reserve the 10 timings space in memory size.
3.3.3 Factory modes and preset modes are defined in the enclosed timing table file
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