Troubleshooting Guide - Sony STR-AV500 Operating Instructions Manual

Troubleshooting guide
PROBLEM
CAUSE
REMEDY
Severe hum or noise is heard.
Amplifier
The connecting cords are not of
shielded type.
Use shielded type cords.
A transformer, motor, TV or
fluorescent light affects the
connecting cord.
Place the connecting cords ina
location away from a transformer or
motor, and at least 3 meters (10 feet)
from a TV set or a fluorescent light.
The audio components are too close
to a TV set.
If both are used at the same time,
separate the TV from the audio
~ components.
The receiver is not grounded.
Connect the ground wire to the
antenna ground terminal.
The connections are loose.
Make secure connections.
The plugs and jacks are dirty.
Wipe the plugs and jacks with a
cloth lightly dampened with alcohol.
The remote commander does not
operate.
The batteries are exhausted. Replace the batteries with new ones.
There is any object between the unit
and the commander head.
Remove the object.