Rx450AC Rx550DC MK3 Installation Manual - V19 30Sep05.doc
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CABLE LENGTH COMPENSATION
The receiver incorporates a remotely adjustable high quality launch amplifier to
compensate for video cable losses over extended cable distances.
The gain of the launch amplifier can be adjusted in the receiver
LAUNCH AMP GAIN
line
of the
MAIN/RECEIVER/OPTIONS
menu. The gain can be varied from 0 - 255, the
higher the number, the higher the gain. The default value is 0. As the amplifier gain is
increased, high frequency lift is also increased.
SELF-TEST AND DIAGNOSTIC SEQUENCE
The diagnostic system and status check, which will activate each receiver function for 2-3
seconds in turn, is activated by selecting
SELF TEST
from the receiver
MAIN/RECEIVER/TEST
menu. The self test can also be activated by pressing both the
UP
and
DOWN
buttons on the receiver top pcb simultaneously, allowing local self test of
a stand alone receiver. (Please refer to earlier diagram for button positions).
The receiver OSD displays the self test progress with two status lines as shown below.
FUNCTION
Å
this line will show the current function being driven.
Pxxxx Txxxx Zxxxx Fxxxx
Å
the xxxx indicate preset pot values for pan, tilt,
zoom and focus. Each value should change
smoothly as the corresponding function is driven.
Functions: Active
output
PAN LEFT
J7/PM+/- PB+/-
PAN RIGHT
J7/PM+/- PB+/-
TILT DOWN
J7/TM+/- TB+/-
TILT UP
J7/TM+/- TB+/-
ZOOM IN (Lens driven fully IN)
J10/ZM
ZOOM OUT (Lens driven fully OUT)
J10/ZM
FOCUS
NEAR
J10/FC
FOCUS
FAR
J10/FC
AUX
LAMPS
J6/LAMPS
AUX
WASHER
J6/WASH
AUX
WIPER
J6/WIPE
Diagnostic check complete, receiver
will display a results screen and drive
the head and lens for 5 seconds.
During the self test, the presence and sense of each preset input is recorded. Following
the self test the display shows if the preset inputs for pan/tilt/zoom and focus was
detected. Also the pan/tilt head and lens outputs are driven for approx 5 seconds to
indicate the results. If the drive led is GREEN then preset is ok and if RED then not ok.
