Sony XMG-S4 手册
11
GB
Troubleshooting
The following checklist will assist in the correction
of most problems which you may encounter with
your unit. Before going through the checklist below,
refer to the connection and operating procedures.
of most problems which you may encounter with
your unit. Before going through the checklist below,
refer to the connection and operating procedures.
The illumination indicator does not light up.
The fuse is blown.
The fuse is blown.
Replace the fuse with a new one.
The ground (earth) wire is not securely
connected.
Fasten the ground (earth) wire securely to a
Fasten the ground (earth) wire securely to a
metal point of the car.
The voltage going into the remote input (REM)
terminal is too low.
Turn on the car audio unit if it is not turned on.
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 – 16 V).
The illumination indicator changes from white to
red.
Turn off the power switch. The speaker outputs
red.
Turn off the power switch. The speaker outputs
have shorted.
Rectify the cause of the short.
Rectify the cause of the short.
Turn off the power switch. Make sure the speaker
cord and ground (earth) wire are securely
connected.
connected.
The unit becomes abnormally hot.
The unit heats up abnormally.
The unit heats up abnormally.
Use speakers with suitable impedance: 2 – 8 Ω
(stereo), 4 – 8 Ω (when used as a bridging
amplifier).
amplifier).
Make sure to place the unit in a well ventilated
location.
The sound is interrupted.
The thermal protector has activated.
The thermal protector has activated.
Reduce the volume.
Alternator noise is heard.
The power connecting wires are installed too
The power connecting wires are installed too
close to the RCA pin cords.
Keep the wires away from the cords.
Keep the wires away from the cords.
The ground (earth) wire is not securely
connected.
Fasten the ground (earth) wire securely to a
Fasten the ground (earth) wire securely to a
metal point of the car.
Negative speaker wires are touching the car
chassis.
Keep the wires away from the car chassis.
Keep the wires away from the car chassis.
The sound is muffled.
The filter switch is set to “HP” or “OFF”.
The filter switch is set to “HP” or “OFF”.
When connecting the subwoofer, set to “LP”.
The filter switch is set to “LP”.
When connecting the full range speaker, set to
“OFF” or “HP”.
The sound is too quiet.
The LEVEL adjustment control is not appropriate.
The LEVEL adjustment control is not appropriate.
Turn the LEVEL adjustment control in the
clockwise direction.
clockwise direction.
If these solutions do not help improve the situation,
consult your nearest Sony dealer.
consult your nearest Sony dealer.