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1.3.2 Input Signals:
Video Input Signals Range (Analog RGB Signal)
No.
Symbol
Item
M in
Max
Unit
1
Fh
Horizontal Frequency
38.3
62.0
kHz
2
Fv Vertical
Frequency
48
76
Hz
3
Fclk Pixel Clock Frequency
61.6
90.0
MHz
4
Vih High Level Input
5.5
V
5
Vil Low
Level Input
4.5
V
6
Video RGB
Analog Video Level
0
0.3 V
1.3.2.1 Video Signal Amplitudes:
The video inputs consist of Red, Green and Blue signals each has its own coaxial cable terminated at the
monitor. These video signals are analog levels, where 0V corresponds to black, and 700mV is the maximum
signal amplitude for the respective color. The video signal is terminated with 75 ohms.
1.3.2.2 Video Signal Termination Impedance:
The analog video signal termination shall be 75 ohm.
1.3.2.3 Synchronization (Sync) Signals:
The Horizontal Sync (HS) TTL signal is used to initiate the display of a horizontal line. HS may be either active
high or active low according to the timing. The Vertical Sync (VS) TTL signal is used to initiate the display of a
new frame. VS may be either active high or active low according to the timing.
1.3.2.4 Sync Signal Levels:
Level: L = 0V ~ 0.8V H = 2.4V ~ 5V
1.3.2.5 Abnormal Signal Immunity:
The monitor shall not be damaged by improper sync timing, pulse duration, absence of sync, abnormal input
signal amplitude, or any other anomalous behavior of a graphics card.
1.3.2.6 Digital TMDS Input (DVI signal input):
1.3.3 User Controls and Indicators:
Signals
used
for
mode
detection:
-Nominal horizontal frequency
-Nominal vertical frequency
-Horizontal sync. Pulse polarity
-Vertical sync. Pulse polarity
The tolerance for detecting the horizontal frequency is between ±1KHz from center frequency
The tolerance for detecting the vertical frequency is between ±0.5Hz from center frequency
1.3.3.1 Power On/Off Switch:
The monitor shall have a power control switch visible and accessible on the front of monitor.
1.3.3.2 Power Indicator LED:
Summary of Contents for S191HQL
Page 1: ...ACER_LCD_S191HQL _SM20120602V0...
Page 21: ...19 2 3 2 Key operation Key define...
Page 23: ...21...
Page 24: ...22 3 Exploded Diagram 3 1 Product Exploded Diagram...
Page 43: ...41 LPT port d P driver EDID PC D ISP tool TP Monitor PVDDC2010 00901 exe...
Page 55: ...53 9 2 Layouts Main Board 715G5280M0E000004K...
Page 56: ...54...