American Dynamics SpeedDome Optima LT Installation And Service Manual page 29

6. On the Unicard board, observe the green
power LED (Figure Chapter 3-3).
Is the +12Vdc, green LED off or not on steady?
YES: Indicates loss of power to or from power
supply. Verify that the 22Vac (min.) cable is
properly attached to the 7-pin connector, P3
(pins 3, 4 and 5). Ensure all cable connections
within the dome are secure. If O.K., then replace
the Unicard board.
NO: Go to step 7.
P3 Connector (AC In)
Pin Color
3 Black
4 Red
5 White
Figure Chapter 3-3. LEDs on the Unicard
GRN YEL
RED
7. On the Unicard board, observe the red
power LED (Figure Chapter 3-3).
Is the +5Vdc, red LED off or not on steady?
YES: Indicates loss of power to or from power
supply. Verify that the 22Vac (min.) cable is
properly attached to the 7-pin connector, P3
(pins 3, 4 and 5). Ensure all cable connections
within the dome are secure. If O.K., then replace
the Unicard board.
NO: Go to step 8.
P3 Connector (AC In)
Pin Color
3 Black
4 Red
5 White
8. On the Unicard board, observe the yellow
communication LED (Figure Chapter 3-3).
Is the yellow LED flashing?
YES: Typical communications cause this LED to
be illuminated intermittently. Go to step 9.
NO: Indicates that a command is not being
received from the controller. Verify that the
Designation
AC
Ground
AC
P3
Designation
AC
Ground
AC
SPEEDDOME LT
RS422 or SensorNet cable is properly attached
to connector P3. If OK, then replace the Unicard
board.
P3 Connector (RS422 Data Comm.)
Pin Color
7 Orange
6 Green
2 Yellow
1 Brown
P3 Connector (SensorNet Data Comm.)
Pin Color
1 —
2 —
* NOTE: 2-wire, twisted, unshielded, 22AWG cable.
9. Check Unicard board.
Does the dome produce video and respond to
commands?
YES: Then it is likely that the connectors were
not seated properly.
NO: Then replace the Unicard board.
If none of these steps worked, then send the dome
back to the NRC. To obtain a repair authorization
number, call 1-800-543-9740 (CEs) or 1-800-442-
2225 (Dealers).
If you need to identify and replace the faulty
component, continue with the troubleshooting
procedure.
Continue with this procedure if:
The dome functions but does not pan
The dome functions but does not tilt
The dome does not "home" or respond to
commands even when attached to another
dome's housing and its address switches are set
correctly (dead dome).
To perform this procedure, you must have ready
access to the chassis (camera and lens shrouds
removed).
CAUTION—ELECTROSTATIC
SENSITIVE DEVICE! Use a grounding
strap when handling PC boards.
3-4
SERVICE
Designation
RS422 Data In High (+)
RS422 Data In Low (–)
RS422 Data Out High (+)
RS422 Data Out Low (–)
Designation
SensorNe* (–)
SensorNet* (+)