Troubleshooting Guide - Onkyo TX-902 Instruction Manual

Quartz synthesized tuner amplifier
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Trouble shooting guide
NOTE (TX-902 only):
1f 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 aie of the remote control transmitter.
No power.
:
® Power cord is disconnected.
~
© Connect power cord.
-@ AC. fuse biown.
"<<!
@ Contact Onkyo Service Center:
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 control 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 con-
| @ Noise from electrical apparatus such
@ Move. AM loop antenna to different position.
High pitched noise or buzzing noise on...
| @ Noise from TV.
® Place the AM loop antenna as far as possible from
Crackling noise on AM and FM.
®@ Noise caused by turning fluorescent
@ Move antenna as far as possible from the flu-
:
ie
lamp on and off.
;
orescent 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.
é
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 aad se-
is bad.
because of tall buildings or mountains.
lect 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 preset sta- |. @ The power switch has not been turned | © The memory contents are lost if the power switch
tion number is input.
on for a long time or the power cord
is not turned on a few times each month. Store
has been unplugged for a long time.
all stations again and remember to turn the power
on a few times each month.
Front panel controls function but remote
|.@ No batteries in remote control trans-
@ Insert batteries.
contro! transmitter does not. Aah 902
mitter.
@ Replace batteries.
only)
@ Batteries have worn out.
The tuning steps by which the tuned frequency changes on each band have been set at the factory to the proper value for the country where
each unit is to be sold. If you use the unit in a.country where a different tuning step is required or if the broadcast frequencies in your country
change so that you can not tune in radio stations precisely, contact your authorized Onkyo Service Center.

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Tx-900

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