Onkyo TX-8511

Troubleshooting guide
II a problem occurs, while you are using the remoic conirol, first opci-aie the unit using the Iroiii panel controls to confirm that it is not due
to a malfiinction (or expireil batteries) of the remote control.
Trouble
Cause
Remedy
No power
• Power cold is disconnected.
• There is external noise in the computer circuits
of this unit.
• AC fuse is blown.
• Connect power cord.
• Turn the power switch off, and then on again
or remove the AC plug from the outlet andilhen
plug It again.
• Contact your Onkyo Service Center.
Power but no sound
• IT-2 MONITOR 1 indicator is lit.
• AUDIO MUTE indicator is lit.
• Bad/incorrect connections.
• Amplifier protection circuitry has been acti¬
vated.
• Switch off.
• Switch off with the remote control.
• Check connection cables, speaker cables, etc.
• Contact your Onkyo Service Center.
Hum, low-frequency noise
• Poor or no input ground.
• Poor or no phono motor ground.
• The placement of the audio connection cables
on the rear panel is incorrect.
• Check outer conductor of input plugs.
• Check for proper ground connection.
• Adjust the placement ol the cable to reduce
hum.
Howling when the volume is
turned up
• Turntable and speakers are too ctose together.
• Move them farther apart.
Rough or scratchy sound;
High range is not clear
• Stylus ol turntable pick-up is worn.
• Turntable stylus lip is dirty.
• Treble control is too high.
• Replace.
• Clean.
• Turn treble conirol down.
AM stations cannot be
received.
• AM loop antenna is not attached.
• Connect the included AM loop antenna to the
AM antenna terminals.
Buzzing noise on AM
(particularly conspicuous at
night or with weak stations)
• Noise from electrical apparatus such as fluo¬
rescent lamp.
• Move the AM loop antenna to a different posi¬
tion.
• Set up an outdoor AM antenna.
High-pitched noise or
buzzing noise on AM
• Noise from the TV set. • Place the AM loop antenna as far as possible
from the TV.
• Move unit away from TV set.
Crackling noise on AM or FM
• Noise caused by turning fluorescent lamp on
and off.
• Noise from automobile ignition.
• Move antenna as far as possible from the fluo¬
rescent lamp.
• Install an FM outdoor antenna as far as possi¬
ble from the road.
• Change the position or direction of the outdoor
antenna.
FM TUNED and STEREO
indicators light but sound is
distorted and stereo
separation is bad.
• Station is loo strong.
• Multiple rellection of the radio waves because
ol tall buildings or mountains.
• Change to a T-shaped antenna.
• Use an antenna which has better directivity
and select a point where the distortion is least.
FM TUNED and STEREO
Indicators flicker and hiss is
heard on FM.
• Station is too weak.
• Stereo FM broadcasts cover only about hall
the distance of an ordinary broadcast.
• Install an outdoor FM antenna.
• Change the position or direction ol the outdoor
antenna.
No station is recalled when a
PRESET or SCAN button is
pressed.
• The power cord has been unplugged lor a long
lime.
• The memory contents are lost. Store all sta¬
tions again.
The RDS function does not
work. (European and some
other models only)
• It is not RDS station.
• The reception station signal is loo weak.
• Too much interference.
• Receive an RDS station.
• Install an outdoor FM antenna.
• Change the position or direction of the outdoor
antenna.
• Move the antenna as far away as possible
from the fluorescent lamp.
• Install an outdoor FM antenna as far away as
possible from the road.
Front panel controls function,
but remote control does not.
• No batteries in remote control.
• Batteries liave worn out.
• Insert batteries.
• Replace batteries.
• Also refer to the respective instruction manuals of the video tlLsc player, video ca.s.sette recorder, TV monitor, etc., being used.
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