Bose E4 manual Input clipping, No STANDBY and SYSTEM indicators, Direct input is active, 64 of

8.0 E4 System Troubleshooting

8.2.4 Input clipping

If clipping is occurring at the input of an amplifier channel, the source LED will blink red.

8.2.6 No STANDBY and SYSTEM indicators

STANDY & SYSTEM LEDs are off - AC power is on

			AMP OUTPUTS			SYSTEM
1	2			3	4	STATUS
							STANDBY
		AUDIO SOURCES
						DIRECT
1	2			3	4	INPUT

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.

8.2.5 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.

			AMP OUTPUTS			SYSTEM
1	2			3	4	STATUS
							STANDBY
		AUDIO SOURCES
						DIRECT
1	2			3	4	INPUT

Is E4 unit		No
plugged into an
AC source?
	Yes

Is the E4		No
POWER switch
set to ON?
	Yes

Is STANDBY		Yes
indicator on?
	No

Yes

Is SYSTEM STATUS

indicator red?

No

Is the unit properly		No
configured for the line
voltage?
	Yes

Plug the E4 unit into an AC receptacle.

Set E4 POWER switch to ON.

Press the STANDBY switch on the E4 front panel.

•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.

Contact Bose

Customer Service.

64 of 80