Onkyo TX-SE550 appendix Troubleshooting guide, Trouble Cause Remedy See

Troubleshooting guide

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

Trouble		Cause		Remedy	See
					page
No power.	• Power cord is disconnected.		• Connect power cord.		11
	•	There is external noise in the computer circuits of	•	Turn the power button off and then on again or	11
		this unit.		remove the AC plug from the outlet and then plug
	• AC fuse blown.		•	it again.
				Contact your Onkyo Service Center.
Power on but no sound.	• TAPE MONITOR indicator is lit.		• Press the TAPE (MONITOR) button.		16
	•	MUTING indicator is lit.	•	Press the MUTING button on the remote control-	19
	• Bad connections.		•	ler to turn it off.
				Check connections, speaker leads, etc.	10
	•	Amplifier protection circuitry has been activated.	•	Contact your Onkyo Service Center.
		(‘PROTECT’ will be displayed.)
No sound from the center	• Speaker cable is not corrected.		• Check the connection between the amplifier and		10
speaker, or very minimal sound.	• SURROUND MODE button is set to STEREO.		•	the speaker.
				Set the SURROUND MODE button to DOLBY	21
	•	CENTER level is set to minimum.	•	PRO LOGIC, HALL, LIVE or ARENA.
	• CENTER SPEAKER is set to NO.			Set the CENTER level to the appropriate volume.	15
			•	Set CENTER SPEAKER to YES.
					14
Hum, low-frequency noise.	• Poor or no input ground.		• Check outer conductor of input plugs.		6
	•	Poor or no phono motor ground.	•	Check for proper ground connection.	6
	•	The placement of the audio connection cables on	•	Adjust the placement of the cable to reduce hum.
		the rear panel is incorrect.
Howling when the volume is	• Turntable and speakers are too close together.		• Move them farther apart.
turned up.
Rough or scratchy sound. High	• Stylus of turntable pick-up is worn.		• Replace.
range is not clear.	•	Turntable stylus tip is dirty.	•	Clean.
	•	Treble control too high.	•	Turn treble control down.
AM stations cannot be received.	• AM loop antenna is not attached.		• Connect the included AM loop antenna to the AM		13
				antenna terminals.
Buzzing noise on AM (particu-	• Noise from electrical apparatus such as fluores-		• Move the AM loop antenna to different position.		13
larly conspicuous at night or with		cent lamp.	•	Set up an outdoor AM antenna.
weak stations).					13
High-pitched noise or buzzing	• Noise from TV set.		• Place the AM loop antenna as far as possible		13
noise on AM.			•	from the TV.
				Move unit away from TV set.
Crackling noise on AM, FM.	• Noise caused by turning fluorescent lamp on and		• Move antenna as far as possible from the fluores-
	•	off.	•	cent lamp.
		Noise from automobile ignition.		Install an FM outdoor antenna as far as possible	13
			•	from the road.
				Change the position or direction of the outdoor
				antenna.
TUNED and STEREO indica-	•	Station is too strong.	•	Change to T-shaped antenna.	12
tors light but sound is distorted	•	Multiple reflection of the radio waves because of	•	Use antenna which has better directivity and	13
and stereo separation is bad.		tall buildings or mountains.		select a point where the distortion is least.
TUNED and STEREO indica-	•	Station is too weak.	•	Install an outdoor FM antenna.	13
tors flicker and hiss is heard on	•	Stereo FM broadcasts cover only about half the	•	Change the position or direction of the outdoor
FM.		distance of an ordinary broadcast.		antenna.
No station is recalled when a	• The power cord has been unplugged or the		• The memory contents are lost. Store all stations		25
SCAN button is pressed.		POWER switch has been turned off for a long		again.
		time.
Front panel controls function but	•	No batteries in remote controller.	• Insert batteries.		5
remote controller does not.	•	Batteries have worn out.	•	Replace batteries.	5
The sound of the playback	• The input selector is not set properly.		• Set it to the playback source.		16
source is not heard.
Your voice is not heard when you	• Microphone plug is not firmly inserted into the		• Insert the plug firmly.		22
speak or sing into the micro-		MIC jack.	•	Turn on the microphone.	22
phone.	•	Microphone is turned off.	•	Press the KARAOKE button to turn on the	22
	•	The karaoke function is turned off.		KARAOKE indicator.
Karaoke is not turned on.	• DOLBY PRO LOGIC is selected.		• Select another Surround mode.
	•	MULTI-CH INPUT is selected.	•	Select another INPUT.
You cannot select DOLBY PRO	• KARAOKE is turned on.		• Turn KARAOKE off.		22
LOGIC.

Also refer to the respective instruction manuals of the video disc player, video cassette recorder, TV monitor, etc., that compose your enter- tainment system.

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