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Dead Dome
What to check.
1.
Composite cable at J-Box.
2.
Voltage on RS422 interface board.
3.
Voltage on CPU board.
4.
Camera/lens board.
What to do.
Make a visual inspection of the J-Box to
ensure that the composite cable is connected
properly. Unplug the cable and wait 45 sec.
Plug the cable back in and test dome
operation.
Check the voltage (22Vac min.) at pins 3 and
5 of P4 on the RS422 interface board. If
voltage is not present, check the J-Box for
improper wiring and the dome power supply.
If that does not solve the problem, check
voltage (22Vac min.) at pins 1 and 3 of P5 on
the RS422 interface board. If voltage is not
present, replace the board.
Check pins 2 and 3 of P2 on the CPU board for
12Vdc and pins 1 and 2 for 5Vdc. If voltage is
not present, replace the fuse on the dome
power supply. If that does not solve the
problem, replace the dome power supply
assembly.
If that does not solve the problem, disconnect
JP4 from the CPU board. Check the dome for
pan control. If it does not have pan control,
replace the CPU board.
Disconnect J5 on the camera/lens board.
Check the dome for pan control. If it does not
have pan control, replace the clock spring
assembly and/or the slip-ring assembly.
If that does not solve the problem, replace
the camera/lens board. If that does not solve
the problem, replace the chassis.
SENSORVISION SpeedDome
Q-31
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