7.1 Physical connection
Physical connection must be afforded using a cable according to the diagram below:
7.2 Video and audio input selection command
The host must send the following sequence:
BXX
followed by
CR
where:
B is the Hex character 42
XX is the video and audio input (from 01 to 05)
01 and 02 indicates the inputs CV1, CV2
03
indicates
the
inputs
Y/C
04 and 05 indicates the inputs PC1, PC2
Example: to select the Y/C input number 2 the following characters must be sent on line:
42 30 35 0D
The MDL200 scaler replies:
ACK
(Hex 06) if the command has been performed correctly
NACK
(Hex 15) if transmission errors have been detected
7.3 Setting mute audio
The host must send the following sequence:
mX
followed
by
CR
where m is the hex character 6D
X indicates the status of the mute (0 or 1)
0
indicates
mute
audio
de-activated
1
indicates
mute
audio
activated
Example: to activate the mute audio the following characters must be sent on line: 6D 31 0D
The MDL200 scaler replies:
ACK
(Hex 06) if the command has been performed correctly
NACK
(Hex 15) if transmission errors have been detected
4.3 Audio Signals
Connect the audio of all the sources to the RCA stereo AUDIO INPUTS sockets.
The MDL200 has two audio outputs: one balanced and one unbalanced.
Connect the unbalanced audio output to its destination (usually a VHS recorder).
Remember that level of both audio outputs cannot be regulated.
Connect the balanced audio output to a set of active speakers or to a stereo
amplifier.
WARNING
If the speakers or the amplifier have the input unbalanced,
use outputs “a” and GND leaving output “b” free.
In this case, half of the output level is lost.
MDL200
SWITCHER/HIGH RESOLUTION SCALER
MDL200
SWITCHER/HIGH RESOLUTION SCALER
TO
MDL 200
ELPRO Video Labs s.r.l.
Via della Praia 4/a FERRIERA di BUTTIGLIERA ALTA (TO) – ITALY
Tel.+39 0119348778 - FAX +39 0119348779
ELPRO Video Labs s.r.l.
Via della Praia 4/a FERRIERA di BUTTIGLIERA ALTA (TO) – ITALY
Tel.+39 0119348778 - FAX +39 0119348779
10 7