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Troubleshooting
The following checklist will assist in the correction
of most of the problems you may encounter with
your unit. Please refer to the connection and
operating procedures before going through the
checklist below.
The status indicator light does not light up.
The fuse is blown.
– Replace the fuse with a new one.
The ground (earth) lead is not securely
connected.
– Fasten the ground (earth) lead securely to a
metal point on the car chassis.
The voltage going into the remote input
(REMOTE) terminal is too low.
– Turn on the car audio unit if it is not turned on.
– Use a relay if the system employs too many
amplifiers.
Check the battery voltage (10.5 V – 16 V).
The status indicator light changes from white to
red.
Turn off the amplifier. The speaker outputs have
shorted.
– Rectify the cause of the short.
Turn off the amplifier. Make sure the speaker lead
and ground (earth) lead are securely connected.
The amplifier becomes abnormally hot.
The amplifier heats up abnormally.
– Use speakers with suitable impedance: 2 Ω –
8 Ω (stereo) or 4 Ω – 8 Ω (when used as a
bridging amplifier).
Make sure to place the amplifier in a well
ventilated location.
The sound is interrupted.
The thermal protector has activated.
– Reduce the volume.
Alternator noise is heard.
The power connecting leads are installed too
close to the RCA pin cables.
– Keep the leads away from the cables.
The ground (earth) lead is not securely
connected.
– Fasten the ground (earth) lead securely to a
metal point of the car.
Negative speaker wires are touching the car
chassis.
– Keep the wires away from the car chassis.
The sound is muffled.
The FILTER switch is set to "LP".
– When connecting the full range speaker, set to
"OFF" or "HP".
18
GB
The sound is too quiet.
The INPUT SENS control setting is not
appropriate. Turn the INPUT SENS control in the
clockwise direction.
If these solutions do not help improve the situation,
consult your nearest Sony dealer.
Support Site
If you have any questions for the latest support
information on this product, please visit the
website below:
Customers in the USA/Canada/Latin America:
https://www.sony.com/am/support
Customers in European countries:
https://www.sony.eu/support
Customers in other countries/regions:
https://www.sony-asia.com/support
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