Bose FreeSpace E4 Series II, Руководство по обслуживанию

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88
No audio in zone (continued)
TROUBLESHOOTING
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.
No audio in zone.
Are the AUDIO
SOURCES indicators
green?
• Make sure that the audio sources
are connected to the E4 LINE in-
puts and that there is an input sig-
nal from the source.
• Using the Installer™ software,
check that the input gain is raised.
• Make sure the source is on.
No
Yes
The amplifier is in “protect” mode.
Disconnect the load and see if the
output indicator changes to green.
If so:
• Check for a short in the output
line,
• Make sure no small strands of
wire are touching other wires,
• Make sure speakers are function-
ing 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.
Is AMP OUTPUT
indicator red?
Are the
AMP OUTPUTS
indicators green?
Perform test procedures.
If unit passes, return to
customer.
Yes
No
No
Yes
User interface keypads
exhibit strange behavior
Is keypad connected
to the correct ZONE
on the E4 unit?
Connect the keypad to the correct
zone on the E4 unit.
No
Yes
Correct the keypad connector
wiring.
See troubleshooting for the
peripheral controller.
Is the keypad
connector wiring
correct?
Does the Installer™
Error Log list any periph-
eral controller
faults?
Yes
No
No
Yes
Are all
sources to be
controlled assigned to
the ZONE? (Std. and
AV keypad)
Is the
page source
assigned to the ZONE?
(Paging keypad
only)
Yes
No
Yes
No
Check source assignments
using Installer™ software.
Check source assignments
using Installer™ software.
Perform test procedures.
If unit passes, return to
customer.