Specifications

INSTALLATION AND SERVICE GUIDE
DeltaDome II Camera Dome
8000-2708-01, REV. B
23
Routine Troubleshooting
Use this procedure if:
• Dome does not respond to commands
• Dome does not produce video
• Quality of the video is poor
• Dome has no lens control.
CAUTION:
• DO NOT use this procedure if the dome
functions but does not pan or tilt (see page 22).
• If an I/O board is used, use a ground strap
when handling the board.
• When shipping a base having an I/O board to
the manufacturer, place the dust cover over the
spring finger connector to protect it.
• DO NOT overtighten connector screws on the
I/O board; they are delicate. Use a 2.5mm (0.1")
slotted screwdriver. Wider blade widths can
damage connectors.
Procedure
Follow steps until the problem is corrected.
1. Check video on monitor (a, b, or c).
a. No video? Go to step 2.
b. Contrast or color off?
YES Ship entire dome (base included, if it
contains an I/O board) back to the
NSC. Place dust cover over spring
finger connector on I/O board.
NO Go to step 2.
c. Video rolls when switching between
monitors?
YES Use video controller or switcher to
synchronize video vertical sync phases
of all domes to ac line. For specific
instructions, see installation and
service manual for controller or
switcher.
NO Go to step 2.
2. Check ac power and video connections at J-
box. Are 24Vac and/or video signal absent?
YES Correct problem at J-box.
NO Go to step 3.
3. Detach dome from base and examine address
switches. Are they set correctly?
YES If dome still doesn't respond, ship entire
dome (base included, if it contains an I/O
board) to the NSC. If you must repair the
dome, see "Detailed Troubleshooting",
next.
NO Set correct address and reattach housing
and eyeball assembly.
Steps 4-9 are only for bases with I/O boards!
If the mounting base DOES NOT contain an I/O
board, stop here and ship the housing and eyeball
assembly to the NSC. See "IMPORTANT!" on
page 22 for phone numbers.