External Monitor Signal Interface - Koden MDC-1840BB Operation Manual

Chapter 10
Technical Reference

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