Onkyo TX-906 - Troubleshooting Guide; Power, Sound, and Noise Issues; Reception and Remote Control Issues

Trouble shooting guide
Se
NOTE:
If 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.
® Power cord is disconnected.
@ There ts external noise in the computer
circuits of the TX-906/904.
@ AC fuse blown.
Power but no sound. ® Tape monitor switch on. ® Switch to off.
® Audio muting switch on. @ Switch to off by remote control transmitter.
® Bad connections. @ Check input leads, speaker leads, pin plugs, etc.
@ Amplifier protection circuitry has been | @ Contact your ONKYO service center.
activated.
® Connect power cord.
@ Turn the power button off and then on again or
remove the AC plug from the outlet.
@ Contact your ONKYO service center.
® Check outer conductor of input plugs.
® Check for proper ground connection.
@ Adjust the placement of the cabie to reduce hum.
® Poor or no input ground.
® Poor or no phono motor ground.
® The placement of the input/output ca-
ble on the rear panel is not correctly
Hum, iow-frequency noise.
adjusted.
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 contro! too high. ® Turn treble contro! 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 set. @ Place the AM loop antenna as far as possible from
TV. the TV.
@® Move unit away from TV set.
Crackling noise on AM, FM. ® Noise caused by turning fluorescent @ Move antenna as far as possible from the flu-
lamp on and off. orescent lamp.
® Noise from automobile ignition. ®@ install an FM outdoor antenna as far as possible
from the road.
@ Change the position or direction of the outdoor
antenna.
® Change to T-shaped antenna.
@ Use antenna which has better directivity and se-
lect a point where the distortion is least.
FM tuned and stereo indicators light but
sound is distorted and stereo separation
is bad.
FM Signal Strength Indicators and stereo | @ Station is too weak.
indicator flicker and hiss is heard on FM. | @ Stereo FM broadcasts cover only about
half the distance of an ordinary
No station is recalled when a preset key
is pressed.
broadcast.
The multiple room remote system does
® The power cord has been unplugged ® The memory contents are lost. Store all stations
for a long time. again.
not operate.
® Station ts too strong.
® Multipie reflection of the radio waves
because of tall buildings or mountains.
® Install an outdoor FM antenna.
® Change the position or direction of the outdoor
antenna.
@ Connection is wrong. @ Check the connection again.
@ The MR OFF button on the @ Press the MIR OFF button. (The MR OFF indi-
TX-906/904 is engaged. cator will be turned OFF.)
(The MR OFF indicator will light.)
® No batteries in remote control trans-
mitter.
® Batteries have worn out.
® Insert batteries.
@ Replace batteries.
Front panel controls function but remote
control transmitter does not.
Also refer to the respective instruction manuals of the video disc player, video cassette recorder, TV monitor, etc., being used.
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 ts 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.