Detailed Troubleshooting - American Dynamics SpeedDome Ultra III Installation And Service Manual

8. If using RS422 protocol and an I/O board is
used, check comm. line connections.
Press and hold data test switch SW1 (Figure
21) and observe nearby red and green LEDs.
These LEDs indicate the following:
Constant green,
Blinking red
Constant green,
No red
Constant red,
Blinking green
Blinking red,
Green off
Both LEDs off
9. Check spring finger connector on I/O board.
Connect housing and eyeball assembly to
original base to verify contact between spring
fingers and CPU board (under cap). Does dome
produce video and respond to commands?
YES Spring fingers may not have seated
properly. Reconnect housing and eyeball
assembly.
NO Replace I/O board.
If routine troubleshooting did not solve the
problem, the manufacturer strongly recommends
you ship both the entire dome (including base, if an
I/O board is used) to the National Service Center
(NSC) for service. See page 18 for phone
numbers.
If you must perform detailed troubleshooting, use
extreme care when disassembling parts! See
"Detailed Troubleshooting," next.
SpeedDome Ultra III Camera Dome
8000-2573-01, Rev. B
Comm. line correctly
wired.
"Data In –" shorted to
ground.
"Data In +/–" wires
reversed.
"Data In +" shorted to
ground.
"Data In +/–" wires
shorted or open.

Detailed Troubleshooting

Use this procedure to determine if the problem is a
simple cable connection or a major component.
To perform this procedure, you must open the
housing and eyeball assembly. Refer to
"Disassembling the Dome" on page 22.
BEFORE YOU BEGIN, read the following cautions:
CAUTION: DO NOT use this procedure if the
dome functions but does not pan or tilt
(see page 18).
CAUTION: If you can't perform routine trouble-
shooting, the manufacturer strongly recom-
mends you ship both the entire dome (including
base, if an I/O board is used) to the National
Service Center (NSC) for service. If you must
perform detailed troubleshooting, use extreme
care when disassembling parts!
CAUTION: When shipping a base with I/O board
back to the NSC, place the dust cover over the
spring fingers to protect them.
CAUTION: Delicate connector screws on I/O
board. DO NOT overtighten them! Use a 2.5mm
(0.1") slotted screwdriver. Wider blade widths
can damage connectors.
CAUTION: Dome contains electrostatic-sensitive
PC boards. Use a ground strap when handling
boards.
INSTALLATION AND SERVICE GUIDE 21