Bose FreeSpace 4400 Service Manual page 74

No audio in zone (continued)
No audio in zone.
Are the AUDIO
No
SOURCES indicators
green?
Yes
Yes
Is AMP OUTPUT
indicator red?
No
Are the
No
AMP OUTPUTS
indicators green?
Yes
Perform test procedures.
If unit passes, return to
customer.
TROUBLESHOOTING
• Make sure that the audio sources
are connected to the FreeSpace
4400 LINE inputs and that there is
an input signal from the source.

• Using the FreeSpace 4400
Installer ™ software, check that
the input gain is raised.
• Make sure the source is on.
The amplifier is in "protect" mode.
Disconnect the load and see if the
output indicator ch anges to green.
If so:
• Check for a short in the output
line,
• Make sure no small strands of
wire are touchi ng other wires,
• Make sure loudspeakers are func-
tioning correctly, or
• Using a voltmeter, check for a
voltage drop in the power line
when amplifier is being driven ex-
cessively hard.
See amplifier fault troubleshooting
section for course of action.
User interface keypads do not operate
correctly
•Check wiring of RJ-45 connectors.
•Check for breaks/shorts in cable.
•Using the FreeSpace
software, check the Error Log for a periph-
eral controller error.
User interface keypads
exhibit strange behavior
Is keypad
connected to the
correct ZONE on the
FreeSpace 4400
unit?
Yes
Is the keypad
connector wiring
correct?
Yes
Are all
sources to be
controlled assigned to
the ZONE? (Std. and
AV keypad)
Yes
Is the
page source
assigned to the ZONE?
(Page user interface
only)
Yes
Does the
FreeSpace 4400
Installer™ Error Log list
any peripheral
controller
faults?
No
Perform test procedures.
If unit passes, return to
customer.
74
® 4400 Installer™
No
Connect the keypad to the
correct zone on the FreeSpace
4400 system.
No
Correct the keypad connector
wiring.
No
Check source assignments us-
ing FreeSpace 4400 Installer™
software.
No
Check source assignments us-
ing FreeSpace 4400 Installer™
software.
Yes
See troubleshooting for the
peripheral controller.