Onkyo TX-900 User Manual

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:
Power
but
no
sound.
cas
ioe:
f@
Tape
monitor
switch
on.
©
Switch
to
off.
gah
hs
:
ance
cas
@ Audio
muting switch
on.(TX-902
only) }:@-
Switch:
to
off
by
remote
control
transmitter.
"|.
@
Bad
connections.
@
Check
input
leads, speaker
leads,
pin
plugs,
ete.
@ Amplifier protection
circuitry
has
been
@
Contact
Onkyo
Service
Center.
activated.
Hum,
low
frequency
noise:
°°
of:
@
Poor
or
no
input
ground...”
®
Check
outer
conductor
of
input
plugs.
erie
pes
oo
nn
tt
®@: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.
ae
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 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.
spicuous
at
night
or
with
weak
stations).
as
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
AM.
0...
E
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 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.

Onkyo TX-900 Specifications

General

Brand	Onkyo
Model	TX-900
Category	Amplifier
Language	English