Interface Signals; Interface - Philips 190B7 Service Manual

19" LCD Color Monitor

3.1 Interface signals

1). D-Sub Analog
Input signal: Video, Hsync., Vsync
Video: 0.7 Vp-p, input impedance, 75 ohm @DC
Sync. : Separate sync
Hsync Positive/Negative
Vsync Positive/Negative
Composite sync TTL level, input impedance 2.2k ohm terminate
Sync on green video 0.3 Vp-p Negative (Video 0.7 Vp-p Positive)
2). DVI-D Digital
Input signal: Single TMDS link (Three channels: RX0-/+, RX1-/+, RX2-/+)
3). Audio
Input signal: 500mVrms
Loudspeaker (Impedance: 16 Ohm +/-15%): 2W+2W stereo for RMS Power
Frequency range: 320Hz - 13KHz
Headphone connection will mute speakers
4). USB Adaptor
Input signal: Upstream input (VBUS, D+, D-, GND) via USB-B receptacle.
Output signal: Downstream output (VBUS, D+, D-, GND) through USB-A receptacle

3.2 Interface

3.2.1 D-Sub Cable
Length 1.8 M +/- 50 mm
Connector type: D-Sub male with DDC2B pin assignments.
Blue connector thumb-operated jack screws
Pin assignment:
TTL level , input impedance 2.2k ohm terminate
PIN No. SIGNAL
1 Red
2 Green/ SOG
3 Blue
4 Sense (GND)
5 Cable Detect (GND)
6 Red GND
7 Green GND
8 Blue GND
9 DDC +3.3V or +5V
10 Logic GND
11 Sense (GND)
12 Bi-directional data
13 H/H+V sync
14 V-sync
15 Data clock
108
190B7
(Positive/Negative)