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Panasonic DT-M3050W Service Manual page 23

Color video/data monitor, h05f-2 chassis
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Using the extemal_contro.:..l:...f_u_n_c_tio_n
__________________________
_
The function for selecting the input source by meaflS of external control can be switched on and off by pressing
the EXT CTRL button on the monitor control panel under the front cover of the monitor wtth
a
small insulated
scre,,vdriver.
Input selection by means of external control can be carried out using the high-density D·sub 15-pin MULTI IN
connector at the rear of the monttor.
Monilor
1
control
panel
External control mode
f\~NOTRL
Normal control mode
fXT
CTRL
I
PEE
0
EXT
CTRL
&\t\
¢=>
NOTE:
This button can be used when the ON SCREEN button is set to ON.
If the ON SCREEN button setting is set to OFF after external control mode (EXT CTRL ON) has been
set, the on~crean displays can be turned off but external control mode will still remain active.
While external control mode (EXT CTRL ON) is active, "EXT CTRL ON" will remain displayed on the
screen and input selection using the input selection buttons on the remote control unit or monitor
control panel will not be possible.
Selecting ttie input source
You can switch the signal source being connected to the input terminals on the rear of the monitor by changing
the ON and OFF settings for pin No. 4 (R2) and pin No. 12 (R1
j
of the high-density D-sub 15-pin MULTI IN
connector
Oil
the rear of the monitor as shown in the illustration below.
R1
High-density D-sub 15-pin
MULTI IN ccnnector
'Do
0
' 1
GND
.....
R2
>--<>
R2
switch
R1
switch
Seen from
the
rear of the monitor
R2
switch
ON
ON
OFF
OFF
Al
Input selection
switch
The signals from the signal source
ON
which is connected to the LINE
VIDEO IN or S·VIDEO IN connectors
appear on the monitor screen.
The signals
I
rom the signal source
OFF
which is connected lo the MULTI IN
connector appear on the monitor
screen.
The video signals from the signal
ON
sou,:ce which is connected
to
the
RGB BIN
connectors appear on the
monitor screen.
The RGB signals or Y P,Pn signals
OFF
rrom the signal source which is
connected to the MULTI IN connector
appear an the monitor screM.
NOTE:
Use a lock-type swttch { one which stays in the ON or OFF posttion).
This function cannot be used unless the external control mode (EXT CTRL ON) is active.
It is
not
possible
10
switch to the signal source which is connected to the RGB A IN terminals.
Input selection can also be carried out by applying a 5 V or 0 V (GND) power supply externally to pin
No. 4 (R2) and pin No 12 (R1 ). In this case, ON corresponds to 0 V and OFF corresponds to 5 V.
.:
·-·~
,','!f.i'.°"-'i_.:""J'...,•~!~f•:'.::.-::!~~;:.!.'...·\(f;~t::~:,:"'J~'"
E~amples of
system
connections
1.
I
LINE
(VIDEO/S-VIDEO)
mode
connection
Example
~
®)
~~~
~®@)@
"""(.~"'
~
;;•
@c~
©I©)
I@'.
./!£)
IN
~T
@
'
I
I
I
TO AUDIO:
IN
I
:-------------------,
:
:
I
$-VIDEO Cable
I
I
BNC Cable
I
:
VCR
:
I
I
-------
1
with
,
~
- RCAPho~-ii-~R) _________
_I
S-VIDEO
If
rn
Connector
L
-
••
.. _.
2.
I
RGB A/B.
MUL
Tl mode
connection
E~ample
1
BNC Gable
HD Camera
TO
Y.Pa.PR
IN
@;·
\@I~((,~
.i
4,~
~.1.1,Ct:)
~
f~:~·1c,
.• ·,fl)
'"
TO AUDIO
IN
TO
Y.PB.PA
IN
BNC Cable
RCA Phono
-- - I
I (L·R)
It
;:i
L
·~I
HD VCR
TO MULTI
IN
D-sub15pin-BNC (Y.PB.PR)
/ACA (Audio L-R)
CabJe
HDVCA
C
";"I
3:
w
5:
0
==

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