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8.0 E-4 System Troubleshooting
8.1 Introduction
This section provides troubleshooting guidelines to use for solv-
ing any problems you may encounter while installing and servic-
ing E-4 systems.
8.2 E-4 hardware indicators
8.2.1 Normal operation
These are the indications of normal operation.
8.2.2 System fault
A red SYSTEM STATUS LED indicates that the E-4 received an
error from one of its many internal components. A red SYSTEM
STATUS LED after AC power is switched on may be caused by:
• A Power-On Self-Test failure
• A DSP error
• The DSP is offline
To determine the severity of the error, cycle the E-4 unit power off
and back on again. If the SYSTEM STATUS indicator is now off,
the E-4 system has logged an error, but is still operational.
When you check the error log using the FreeSpace
®
system
Installer
™ software you can identify the cause of the error, and
determine an appropriate solution.
AMP OUTPUTS
1
2
3
4
SYSTEM
STATUS
AUDIO SOURCES
1
2
3
4
DIRECT
INPUT
STANDBY
STANDBY
Unlit
SYSTEM STATUS
Green
AMP OUTPUTS
Unlit or Green
AUDIO SOURCES
Unlit, Amber, or Green
DIRECT INPUT
Unlit
AMP OUTPUTS
1
2
3
4
SYSTEM
STATUS
AUDIO SOURCES
1
2
3
4
DIRECT
INPUT
STANDBY
System logged an error – Check the
Installer
™ software Error Log.
SYSTEM STATUS
Indicator is red
Have you cycled
the E-4 in and out
of STANDBY?
Switch the E-4 unit to STANDBY
and then back to active again. If the
SYSTEM STATUS is green, the sys-
tem may have logged an error.
Check the
Installer
™ software Error
Log.
No
Yes
1. Switch the E-4 unit to STANDBY.
2. Set the POWER switch to OFF.
3. Wait for STANDBY indicator to
turn off.
4. Set the POWER switch to ON.
5. Press the STANDBY switch.
1. Switch the E-4 unit to STANDBY.
2. Set the POWER switch to OFF.
3. Disconnect all input/output sig-
nal cables.
4. Set the POWER switch to ON.
5. Press the STANDBY switch.
6. Reconnect one cable at a time
and check the Error Log.
Have you cycled
the E-4 power
on and off?
Have you
disconnected all
input/output
cables?
Contact Bose
Customer Service.
Yes
No
No
Yes
