American Dynamics SpeedDome Ultra VI Installation And Service Manual page 21

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
GSC. 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 GSC. 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 GSC. See "IMPORTANT!" on
page 20 for phone numbers.
SPEEDDOME ULTRA VI
INSTALLATION AND SERVICE GUIDE
4. Isolate problem to housing and eyeball
assembly or base by attaching dome to another
base with I/O board. Does dome display video
or respond to commands?
YES Problem is likely cable connections or I/O
board if used. Go to step 5.
NO Ship dome and base to GSC. Place dust
cover over spring finger connector on I/O
board.
5. Verify coaxial video cable is securely connected
to coax of I/O board (Figure 20). Is cable
disconnected?
YES Connect cable.
NO Go to step 6.
Figure 20. I/O board connector and
jumper locations
21
of 34
Pin 1
Pin 1
P3
P7
P4
P8
I/O BOARD
JW1
JW1 Terminations
PINS FUNCTION
1-2
Unterminated
2-3 Terminated
8000-2830-03, REV. C
Pin 1
Pin 1
P1