Zodiak Installation and Service Manual
185
Commonly Reported Problems
No DC Power to Control Surface Component
The Main panel has two power supplies, the Main and Redundant, that
supply power to the Zodiak control surfaces. Power from these supplies is
processed on the Control Panel Processor board inside the Main panel tub
then distributed to the Crosspoint Switch and M/E Switch boards in the
tub, and the standalone Menu panel through an external power connector.
If a Main panel power supply fails in any manner, it should be replaced.
There are six main fuses on the Control Panel Processor module inside the
Main panel that indicate power status for all power distribution. The fuses
are located on the Control Panel Processor board under a metal cover. A red
LED for each fuse located at the front edge of the board outside of the metal
cover will light to indicate when a fuse needs to be replaced.
1.
Open the Main panel lid and inspect the fuse indicators located on the
front of the Control Panel Processor board inside the Main panel. Each
of the fuses is clearly labeled on the front edge of the module
(
2.
If a red fuse indicator is lit, replace the fuse as follows:
a.
Power down the Main panel by turning off both power supplies
inside the panel.
b.
Remove the Control Panel Processor board cover by removing the
three front screws holding it in place.
c.
Replace the fuse and turn power back on to both supplies. If power
is not restored or if the fuse blows again, check cabling for shorted
connections.
d.
If power is restored, turn off the power supplies and replace the
cover over the Control Panel Processor board.
e.
Turn both power supplies back on and continue operation.
3.
If there is no indication that any fuses need replacement (no red LEDs
are lit), and still no power to a control surface component, recheck
cabling connections to each control surface component inside the Main
panel.
No DC Power to Frame
Power to the Video Processor frame is provided by up to three internal
power supplies. These power supplies are internal to the Zodiak system.
Each supply has a separate AC input. DC power is produced on the power
supply and sent to the Video Processor frame via a passive Power Transfer
board where it is distributed throughout the system by the frame mother-
board. Power supplies are hot swappable and accessible from the front of
the frame.
There are two major causes for loss of power to the Video Processor frame,
power supply failure and thermal shutdown due to poor ventilation.
