Troubleshooting Guide - Onkyo TX-8511 Instruction Manual

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