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Detailed Description: Camera Head Unit – Controls and Indicators
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Intercom Push-To-Talk Switch:
1.
Used to enable
talkback on CH 1, CH 2 or CH 1 & 2.
2.
Intercom Talk Active LED Indicator:
Blinks when
either CH1 or CH2 is enabled for talkback.
3.
Intercom Channel 1 & 2 Talk Active LED
Indicator:
Blinks when the PTT switch has been
used to enable talkback on CH 1 or CH2.
Intercom Channel 1 & 2 Audio Presence LED
4.
Indicator:
Illuminates when audio is present.
5.
Program Audio Presence LED Indicator:
Illuminates when audio is present on either of the
two Program Audio channels sent from the Base
to the Camera Head units.
6.
Intercom Channel 1 & 2 Audio Volume Control
Buttons:
Controls the volume of the Intercom
7.
Program Audio Volume Control Buttons:
Controls the volume of the Intercom Program
audio out in the intercom headset.
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8.
Tally Active LED Indicators:
Illuminates Red for
PGM Tally, Green for PVW Tally.
9.
Fiber Link Active LED Indicator:
Illuminates when
there is a valid fiber connection to the Base Unit.
10.
Camera SDI Video Presence LED Indicator:
minates when the Camera SDI video is present.
11.
Viewfinder Camera Active LED Indicator:
Illuminates when the Camera SDI video is cur-
rently being routed thru to the Viewfinder output.
12.
Return 1, 2, 3 SDI Video Presence LED Indicator:
Illuminates when video is present on the Return
1,2, or 3 video channel.
Viewfinder Return 1 Active LED Indicator:
13.
Chan-
nel 1 & 2 audio out in the intercom headset.
Viewfinder Select Button:
14.
Camera Function User
Switch; Set, Return, VideoCamera Return.
Power LED Indicator:
15.
Illuminates when power is
applied to the Camera Head Unit.
Viewfinder Operation
The Viewfinder button on the Camera Unit's control
panel is used to select the video source that is output
from the Viewfinder BNC Connector. Pressing this
button will change between the Camera's video
output and the Return 1 video being sent by the base
station. LED's on the control panel indicate which
source is currently switched to the Viewfinder output.
An external switch connected to the DB-15 GPIO
connector on the Camera Unit may also be used to
control the Viewfinder output, please refer to the
pinout guide for pinout information. The Viewfinder
select pin on the GPIO connector is typically used
Illu-
with a momentary type pushbutton switch. When
this pin is connected to Ground, the Viewfinder BNC
will output Return 1 video. When this pin is left open
or unconnected, the Viewfinder BNC will output the
Camera's video signal.
The Viewfinder output can also be selected using the
RET button on the Lens. Note that this requires
GY-HM890U camera firmware A518-00FB, or later,
and this option is enabled in the Camera's menu
under: Camera Function; User Switch Set, Return
Video Camera Return.
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