Bose FreeSpace Business E4 II Series Service Manual page 88

No audio in zone (continued)
No audio in zone.
• Make sure that the audio sources
Are the AUDIO
No
SOURCES indicators
• Using the Installer™ software,
green?
• Make sure the source is on.
Yes
The amplifier is in "protect" mode.
Disconnect the load and see if the
output indicator changes to green.
If so:
Yes
Is AMP OUTPUT
• Check for a short in the output
indicator red?
• Make sure no small strands of
No
• Make sure speakers are function-
• Using a voltmeter, check for a
Are the
No
See amplifier fault troubleshooting
AMP OUTPUTS
section for course of action.
indicators green?
Yes
Perform test procedures.
If unit passes, return to
customer.
TROUBLESHOOTING
are connected to the E4 LINE in-
puts and that there is an input sig-
nal from the source.
check that the input gain is raised.
line,
wire are touching other wires,
ing correctly, or
voltage drop in the power line
when amplifier is being driven ex-
cessively hard.
User interface keypads do not operate
correctly
• Check wiring of RJ-45 connectors.
• Check for breaks/shorts in cable.
• Using the E4 Series II Installer™ software,
check the Error Log for a peripheral control-
ler error.
User interface keypads
exhibit strange behavior
Is keypad connected
to the correct ZONE
on the E4 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?
(Paging keypad
only)
Yes
Does the Installer™
Error Log list any periph-
eral controller
faults?
No
Perform test procedures.
If unit passes, return to
customer.
88
No
Connect the keypad to the correct
zone on the E4 unit.
No
Correct the keypad connector
wiring.
No
Check source assignments
using Installer™ software.
No
Check source assignments
using Installer™ software.
Yes
See troubleshooting for the
peripheral controller.