Onkyo TX-DS656 instruction manual Troubleshooting, Cause, Remedy

Troubleshooting

Note:

If a problem occurs while you are using the remote controller, first operate the unit using the front panel controls to confirm that it is not due to a malfunction (or worn out batteries) of the remote controller.

Trouble Cause Remedy

Power shut off immediately after power on.

•Amplifier protection circuitry has been activated.

•Remove the AC plug from the outlet immediately. Then contact your Onkyo service center.

No power	•	Power cord is disconnected.	• Connect the power cord.
	• There is external noise in the computer		• Remove the AC plug from the outlet, leave
		circuits of the TX-DS656.	the unit for 5 seconds or more, and then
			plug it again.
	• AC fuse is blown.		• Contact your Onkyo service center.
Power but no sound	•	TAPE-2 MONITOR indicator is on.	• Press the TAPE-2 MONITOR button to
			turn it off.
	•	MUTING indicator is on.	• Turn it off using the remote controller
			MUTING button.
	•	Bad connection	• Check the connection again. Insert the
			plugs and connectors completely.

No sound or quiet sound from Center speaker	• Surround mode is set to HALL, LIVE,
	ARENA, STUDIO, or STEREO.

• Center speaker is set to NONE.

• Center speaker output level setting is improper.

•In the HALL, LIVE, ARENA, and STUDIO surround modes, the center speaker reproduces sound effects only. This causes little output from the Center speaker, in comparison with the DOLBY PRO LOGIC mode. In the STEREO mode, no sound is output from the Center speaker.

•For the Center speaker, you must set the speaker mode to SMALL, or LARGE.

•Check the output level of the Center speaker.

Hum, low-frequency noise	• Poor phono grounding (GND) connection.	• Remove the grounding wire if hum is reduced.
	• Poor positioning of the audio connection	• Position the audio connection cables to
	cables.	obtain the least hum.
Howling when the volume is turned up	• Turntable and speakers are too close together.	• Move them farther apart.
Rough or scratchy sound/High range is not clear.	• Check possible causes on connected components,	• Check possible causes according to the
	such as a worn pick-up stylus on the turntable.	other components' owner's manual.
	• Treble control is too high.	• Turn the treble control down.
No sound or quiet sound from subwoofer	• Subwoofer is set to NO.	• Check the speaker setting.
	• Subwoofer speakers output level setting is	• Check the output level of the Subwoofer
	improper.	using the test tone.
No sound in sub-room	• SPEAKERS REMOTE indicator is not lit.	• Press the SPEAKERS REMOTE button on
		the remote controller or front panel.
	• Sound volume for the sub-room is set to -∞dB.	• Increase the sound volume using the
		VOLUME y button on the remote controller.

The Multi-Room Remote System cannot be operated from the sub-room.

•The remote controller is not directed toward the remote sensor.

•There is an obstacle between the remote controller and the sensor.

•There is a malfunction of either the receiver or remote controller.

•Bad connection

•Direct the remote controller to the sub-room remote sensor.

•Remove the obstacle.

•Check the receiver and then the remote controller in the main room to find out which is malfunctioning.

•Check the connections again. Insert the plugs and cables completely.

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