Chapter 10 MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Technical Reference
Operation Manual
10-10
93142122-07
10.4.3 External monitor signal interface
Port name : VDR
The connector used : Small D-sub 15 pin
Pin assignment of the connector is as follows:
The signal specifications are as follows:
Name Frequency
Polarity
Pulse
width
Level
Impedance
Horizontal sync signal
64.0kHz Negative 1.04
μ
s
TTL
200
Ω
Vertical synchronous
signal
60.0Hz Negative 46.9
us TTL
200
Ω
R,G,B Video signal
-
Positive
-
0.7 Vp-p
75
Ω
RVD/GVD/BVD
GND
R,G,B Video signal
Signal return
R,G,B Video signal output circuit
Horizontal and Vertical synchronous signal output circuit
1.5
GND
TC74AC04F
Horizontal and Vertical
synchronous signal
Signal return
H-SYNC/V-SYNC
Pin No.
Signal name
1 RVD
2 GVD
3 BVD
6 R-GND
7 G-GND
8 B-GND
13 H-SYNC
14 V-SYNC
5,10 GND
4,9,11,12,15 NC
External CRT connector
(Top View)
1.5
75
Video D/A Converter ( FMS3818KRC)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
