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1-8 (E)
HDCU-900 MM
Board suffix: -22 and later
DPR-163 board (A side and panel side)
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When D813 and D821 light in red, be sure to clean the
CAMERA connector of the unit, the CCU connector of the
camera side and optical/electrical cable. It is also recom-
mended to clean them when the indicators light in yellow.
For the cleaning procedure, refer to Section 1-7.
D801 : /1.001 display
Lights up when the frame frequency factor of the HD
signal is set to 1/1.001 times.
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Set it with S603 on the AT-141 board. For details, refer to
Section 1-5-1, “AT-141 Board” of “Settings of Switches
and Controls on Boards” of the separate Installation and
Maintenance Manual.
D803, D805, D807, D810 : MAIN OUTPUT display
Displays the frame frequency of the camera and the MAIN
HD output of the CCU.
D803 lights up when the frequency is 30 Hz.
D805 lights up when the frequency is 25 Hz.
D807 lights up when the frequency is 24 Hz.
D810 lights up during progressive operation of the camera.
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DPR
POWER
SYSTEM
POWER
/1.001 60 50 PSF
CHU LOCK
CCU CHU
540P 1035
OPTICAL
CONDITION
AUDIO PHASE
30 25 24
MAIN OUTPUT
D803
D801
D904
D907
D814
D810
D807
D805
D817
D819
D821
D813
D813 : OPTICAL CONDITION (CCU) display
Displays the optical level received at the HDCU-900 side.
(0 dBm = 1 mW)
Lights in green : Normal (The optical reception level
should be _17 dBm or more)
Lights in yellow :Normal (The optical reception level
should be within _17 dBm to _20 dBm.)
Lights in red : Abnormal (The optical reception level
should be less than _20 dBm.)
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Attenuates about 0.5 dB for every 1 km of cable.
Attenuates about 0.5 dB for each relay connector.
D814 : CHU LOCK display
Lights up when communication with the connected camera
is normally established.
D817 : 1035 line display
Lights up when the number of active video lines of the
connected camera is 1035.
D819 : 540P display
Lights up when the connected camera runs in 540P mode.
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Set it with S805 on the DPR-163 board. For details, refer
to Section 1-5-2, “DPR-163 Board” of “Settings of Switch-
es and Controls on Boards” of the separate Installation and
Maintenance Manual.
D821 : OPTICAL CONDITION (CHU) display
Displays the optical level received at the camera side.
(0 dBm = 1 mW)
Lights in green : Normal (The optical reception level
should be _17 dBm or more)
Lights in yellow :Normal (The optical reception level
should be within _17 dBm to _20 dBm.)
Lights in red : Abnormal (The optical reception level
should be less than _20 dBm.)
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Attenuates about 0.5 dB for every 1 km of cable.
Attenuates about 0.5 dB for each relay connector.
D904 : SYSTEM POWER display
Lights when the power supply unit and power supply of
the PS-587 board (1.5 V, _2V) are normal.
D907 : POWER display
Lights up when the voltage used on the board is normal.
1-4. Functions of the Indicators on the Boards