Bose FreeSpace Business E4 II Series Service Manual page 87

Retry Fault: The amplifier has tried to start
up or recover from a fault condition at least
six times. When this occurs, you will need to
place the E4 Series II system in standby and
then press the STANDBY button again to
clear the fault, at which time the system will
again try to start up.
When this occurs you should check the
alarm history section of the Amplifier Alarm
to determine the exact fault type that trig-
gered the Retry Fault.
Input and Output Alarm History: This part of
the Error Log displays the sequence of fault
conditions where "0" is the initial fault re-
ported followed by "1-6". These occur over a
very short period of time.
Solving faults reported in the Error Log
When errors are reported in the Error Log,
you can try to solve the problem by perform-
ing one of the following actions:
• On the unit's rear panel, turn the POWER
switch to OFF. Wait a few seconds and turn
the POWER switch to ON. Then press
STANDBY on the front panel.
• On the rear panel, turn the POWER switch
to OFF. Disconnect all input/output signal
cables. Wait a few seconds and turn the
POWER switch to ON. Then press
STANDBY on the front panel. Reconnect
one cable at a time and check the Error Log.
Common Problems
Communications port error
When you receive the communications port
error dialog, the Installer™ software was not
able to locate an E4 Series II system on the
COM 1 port.
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This normally occurs due to one of three
reasons:
• The PC and unit under test are not con-
nected via a "straight-wired" serial cable.
• Another software application has control of
the serial port. Applications such as the Palm
OS, or other audio applications control the
serial port while they are open. Close these
applications and click the TRY AGAIN
button.
• The unit is connected to another communi-
cations port. If this is the case you should
select the appropriate COM port and click
the TRY AGAIN button.
Note: Before dismissing the "Choose COM
port" dialog, select the COM 2 port and click
the TRY AGAIN button. Not doing this will
cause the COM 1 port to be locked. If the
port locks, you must restart your computer.
No audio in zone
If the system is powered on and operational,
but there is no sound, check the following:
• Do the front panel LEDs indicate normal
operation?
• Is the source operating?
• Is routing correct?
• Is output gain correct?
• Is the output gain muted?
• Is cabling correct?