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Trouble shooting guide
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NOTE (TX-820 only):
'lf a problem occurs, 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 control transmitter.
Trouble
No power.
@ Power cord is disconnected.
@ Connect power cord.
®@ AC fuse blown.
® Contact Onkyo Service Center.
Power but no sound.
®@ Tape monitor switch on.
®@ Switch to off.
® Audio muting switch on.(TX-820 only) | @ Switch to off by remote contro! transmitter.
® Bad connections.
® Check input leads, speaker leads, pin plugs, etc.
®@ Amplifier protection circuitry has been
|@ Contact Onkyo Service Center.
activated.
Hum, low frequency noise.
@ Poor or no input ground.
® Check outer conductor of input plugs.
® Poor or no phono motor ground.
® Check for proper ground connection.
Howling when the volume is turned up.
| @ Turntable and speakers are too close
® Move them farther apart.
together.
Rough or scratchy sound. High range is | ® Stylus of pick-up is worn.
@ Replace.
not clear.
® Stylus tip is dirty.
@ Clean.
@ Treble control too high.
® Turn treble contro! down.
AM stations cannot be received.
@ AM !oop antenna is not attached.
® Connect the included AM loop antenna to the AM
antenna terminals.
Buzzing noise on AM
(particularly con-
| @ Noise from electrical apparatus such as
|@ Move AM loop antenna to different position.
spicuous at night or with weak stations). | fluorescent lamp.
® Set up outdoor AM antenna.
High pitched noise or buzzing noise on
| @ Noise from TV.
® Place the AM loop antenna as far as possible from
TV.
the TV.
@ Move unit away from TV set.
Crackling noise on AM and FM.
®@ Noise caused by turning fluorescent
@ Move antenna as far as possible from the fiuores-
lamp on and off.
cent lamp.
®@ Noise from automobile ignition.
@ Install and FM outdoor antenna as far as possible
from the road.
®@ Change the position or direction of the outdoor
antenna.
FM tuned and stereo indicators light but | @ Station is too strong.
® Change to T-shaped antenna.
sound is distorted and stereo separation
| @ Multiple reflection of the radio waves
{| @ Use antenna which has better directivity andselect
is bad.
because of tall buildings or mountains.
a point where the distortion is least.
FM tuned and stereo indicators flicker
® Station is too weak.
®@ Install an outdoor FM antenna.
on and off and hiss is heard on FM.
® Stereophonic FM broadcasts cover only | @ Change the position or direction of the outdoor
about half the distance of an ordinary
antenna.
broadcasts.
No station is recalled when a FM/AM
®@ The power switch has not been turned
|® The memory contents are lost if the power switch
is not turned on a few times each month. Store
all stations again and remember to turn the power
on a few times each month.
on for a long time or the power cord has
been unplugged for a !ong time.
preset button is pressed.
@ insert batteries.
®@ Replace batteries.
®@ No batteries in remote control transmit-
ter.
® Batteries have worn out.
Front panel controls function but remote
control transmitter does not. (TX-820
only)
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