HP L1940 Service Manual page 56

56
HP L1940
Go to cover page
3.0 Electrical characteristics
3.1
of 2 electrical layer component: a TMDS interface for low-voltage differential serial
encoding of the digital display data(Panel Link compliant) and a DDC2B electrical
interface. Refer to the Digital Display Working Group(DDWG) document,
Visual Interface(DVI) Specification, Revision 1.0
3.2
3.2.1
Pin Assignment:
2004-08-31
Jacky Lee
GENERAL PRODUCT SPECIFICATION(Continued)
Interface signals
The input signals can be applied in two different modes:
1). D-shell Analog
Input signal: Video, H-sync, V-sync,
Video : 0.7 V p-p, input impedance, 75 ohm
Sync. : Separate sync
H-sync
V-sync
2). Intel DVI Digital
Input signal: Four channel TMDS signals. The digital interface shall be comprised
Interface
D-Sub Cable
Length : 1.8 M +/- 50 mm (fixed)
Connector type : D-sub male with DDC-2B pin assignments.
Blue connector thumb-operated jack screws
PIN No. SIGNAL
1 Red video input
2 Green video input
3 Blue video input
4 GND
5 Cable detect
6 Red video GND
7 Green video GND
8 Blue video GND
9 DDC +3.3V or +5V
10 GND
11 GND
12 Serial data line (SDA)
13 H-sync
14 V-sync
15 Data clock line (SCL)
19 inch LCD Monitor
TYPE : EJ6B50/02
BRAND : HP L1940
2004-08-31
TTL level, input impedance 2k2 ohm termination
Positive/Negative
Positive/Negative
for the exact requirements.
8639 000 15804
590
28
Digital
6