Onkyo TX-850 User Manual

Trouble shooting guide NOTE:
If a problem occurs, first operate the unit using the front panel
controls to confirm that it is not due to a matfunction (or worn
out batteries) of the remote control transmitter.
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. @ Switch to off by remote contro! transmitter.
® Bad connections. ® Check input leads, speaker leads, pin plugs, etc.
@ Amplifier protection circuitry has been {| @ Contact 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 control down.
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
famp on and off.
@ Noise from automobile ignition.
@ Move antenna as far as possible from the fluores-
cent lamp.
® install and FM outdoor antenna as far as possible
from the road.
® Change the position or direction of the outdoor
antenna.
FM Signal Strength Indicators and stereo | @ Station is too strong.
indicator light but sound is distorted and | @ Multiple reflection of the radio waves
separation is bad. because of tall buildings or mountains.
@ Change to T-shaped antenna.
®@ Use antenna which has better directivity and select
a point where the distortion ts least.
FM Signal Strength Indicators and stereo | @ Station is too weak. ® Install an outdoor FM antenna.
indicator flicker and hiss is heard on FM. | © Stereo FM broadcasts cover only about | @ Change the position or direction of the outdoor
half the distance of an ordinary broad- antenna.
cast.
No station is recalled when a preset key | @ The power switch has not been turned | © The memory contents are lost if the
is pressed. on for a jong time or the power cord has| power switch is not turned on a few times
been unplugged for a long time. each month. Store ail stations again and
remember to turn the power on a few
times each month.
® Insert batteries.
® Replace batteries.
Front panel controls function but remote | @ No batteries in remote control transmit-
control transmitter does not. ter.
® 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 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, take this unit to an authorized Onkyo Service Center.

Onkyo TX-850 Specifications

General

Brand	Onkyo
Model	TX-850
Category	Amplifier
Language	English