Bose FreeSpace E4 Series II, Руководство по обслуживанию

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83
TROUBLESHOOTING
Input clipping
If clipping is occurring at the input of an
amplifier channel, the source LED will blink
red.
If this fault occurs:
• Reduce the output gain of the source, or
• Using the Installer™ software, reduce the
input gain for the channel that is clipping.
Direct input is active
If the DIRECT INPUT LED is red:
• Check that the DIRECT INPUT/CONTROL
contact closure is in the closed position.
• Check the device to which this input is
connected.
No STANDBY and SYSTEM Indicators
AMP OUTPUTS
1 2 3 4
SYSTEM
STATUS
AUDIO SOURCES
1 2 3 4
DIRECT
INPUT
STANDBY
AMP OUTPUTS
1 2 3 4
SYSTEM
STATUS
AUDIO SOURCES
1 2 3 4
DIRECT
INPUT
STANDBY
STANDY & SYSTEM LEDs
are off - AC power is on
Is E4 unit
plugged into an
AC source?
Plug the E4 unit into an AC
receptacle.
No
Yes
Set E4 POWER switch to ON.
Press the STANDBY switch on the
E4 front panel.
Is the E4
POWER switch
set to ON?
Is STANDBY
indicator on?
Troubleshoot and
repair unit.
Yes
No
No
Yes
Is SYSTEM STATUS
indicator red?
Is the unit properly
configured for the line
voltage?
Yes
No
No
Yes
• Connect your PC to the E4 unit
and read the Error Log.
• Check the results of the Power On
self test (POST).
• Use the POST troubleshooting
chart for course of action.
• Set E4 POWER switch to OFF.
• Verify that E4 unit is configured for
the correct AC line voltage.
• Verify that the fuse is good.
• Verify that the AC receptacle is
live.
• Set POWER switch to ON.