Troubleshooting Guide - Onkyo TX-SV434 Instruction Manual

Audio video control tuner amplifier
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26
Troubleshooting guide
if a problem occurs while you are using the remote control, first operate the unit using the front panel controls to confirm that it ts not due to
a malfunction (or worn out batteries) of the remote control.
No power.
® Power cord is disconnected.
@ Connect power cord.
® There is external noise in the computer circuits of | @ Turn the power button off and then on again of
this unit.
remove the AC plug from the outlet and then plug
it again.
® Contact your Onkyo Service Center.
@ AC fuse blown.
® TAPE-2 MONITOR button is on.
@ MUTING button is on.
® Bad connections.
® Amplifier protection circuitry has been activated.
(PROTECT will be displayed.)
@ Switch to off.
@ Switch to off by the remote control.
@ Check connections, speaker leads, etc.
® Contact your Onkyo Service Center.
Power on but no sound.
No
sound
from
the
center
speaker, or very minimal sound.
® Speaker cord is not corrected.
® Check the connection between the amplifier and
the speaker.
® Set the SURROUND
MODE
button to DOLBY
PRO LOGIC or HALL.
@ Set the CENTER
LEVEL to the appropriate vol-
ume.
® Set CENTER
MODE
button to NORMAL
or
WIDEBAND.
® SURROUND
MODE button is set to BY-PASS.
® CENTER LEVEL is set to minimum.
® CENTER MODE button is set to PHANTOM.
Hum, low-frequency noise.
@ Poor or no input ground.
@ Poor or no phono motor ground.
®@ The placement of the audio connection cables on
the rear panel is incorrect.
towing when the volume is | » Turntable and speakers are too close together.
® Move them farther apart.
urned up.
Rough or scratchy sound. High | © Stylus of turntable pick-up is worn.
@ Replace.
range is not clear.
® Turntable 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 | @ Noise from electrical apparatus such as fluores- | ® Move the AM loop antenna to different position.
conspicuous at night or with weak
cent lamp.
® Set up an outdoor AM antenna.
stations).
@ Check outer conductor of input plugs.
® Check for proper ground connection.
@ Adjust the placement of the cabie to reduce hum.
High-pitched noise or buzzing
Noise from TV set.
® Place the AM loop antenna as far as possible from
noise on AM.
the TV.
® Move unit away from TV set.
Crackling noise on AM, FM.
Noise caused by turning fluorescent lamp on and | ® Move antenna as far as possible from the fluo-
off.
rescent lamp.
Noise from automobile ignition.
® Install an FM outdoor antenna as for as possible
from the road.
® Change the position or direction of the outdoor
antenna.
TUNED and STEREO indicators
Station is too strong.
® Change to T-shaped antenna.
light but sound is distorted and
Multiple reflection of the radio waves because of | ® Use antenna which has better directivity and se-
stereo separation is bad.
tall buildings or mountains.
lect a point where the distortion is least.
TUNED and STEREO indicators
Station is too weak.
@ Install an outdoor FM antenna.
flicker and hiss is heard on FM.
Stereo FM broadcasts cover only about half the | ® Change the position or direction of the outdoor
distance of an ordinary broadcast.
antenna.
No Station is recalled when a | ® The power cord has been unplugged for a long | ® The memory contents are lost. Store all stations
PRESET
SCAN
button
is
time.
again.
pressed.
On the European
model, this is because the
POWER button has been set to off for a long time.
Front panel controls function but | @ No batteries in remote control.
® Insert batteries.
remote control does not.
@ Batteries have worn out.
®@ Replace batteries.
® Also refer to the respective instruction manuals of the video disc player, video cassette recorder, TV monitor, etc., being used.

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