Troubleshooting - Sony DWZB70HL Operating Instructions Manual

Troubleshooting

Check the following if problems occur.
Should any problem persist, consult your Sony dealer.
Symptom Meanings
The unit does not turn on. The polarity orientation of the batteries in the
battery compartment is incorrect.
The batteries are exhausted.
The batteries drain The batteries are exhausted.
quickly.
Manganese batteries are being used.
The unit is being used under cold conditions. The batteries drain quickly under cold conditions.
There is no sound. The RF mode or channel setting on the
transmitter is different from that on the
receiver.
The muting function is enabled.
The transmitter has been placed on the
battery charger and is recharging.
The encrypted transmission settings on the
transmitter and receiver do not match.
The sound is weak. The attenuation level on the transmitter is too
high.
The output level of the receiver does not
match the input level setting of the connected
device.
The sound is distorted. The attenuation level of the transmitter is too
low.
The transmitter's MIC/LINE selector is set to
MIC.
The output level of the receiver does not
match the input level setting of the connected
device.
Noise occurs. The transmitter and receiver are far away
from each other.
Signal interference from other devices is
occurring.
Two or more transmitters are set to the same
channel.
Wide band and narrow band are being used
simultaneously.
The service area (i.e., The antenna is not attached to the receiver.
operating range) is small.
The antenna is being squeezed.
The audio quality is The equalizer setting is incorrect.
abnormal.
The unit does not turn off The RF mode is being configured.
when the POWER switch
is pressed.
Channels cannot be The settings menu is not open.
changed.
The RF indicator on the Interference is being received.
receiver lights even when
the transmitter is off.
Remedy
Insert the batteries with the correct polarity
orientation.
Replace the batteries with new ones.
Replace the batteries with new ones.
Use alkaline batteries. The battery life of a manganese
battery is less than half that of an alkaline battery.
Use the same RF mode and channel setting on both
the transmitter and the receiver.
Disable the muting function.
Remove the transmitter from the battery charger.
Configure the encrypted transmission settings on
the transmitter and receiver again.
The input level is low. Set the attenuation level on
the transmitter to the appropriate level.
Set the MIC/LINE selector according to the input
level of the connected device. (ZRX-HR70)
The audio input level is too high. Set the attenuation level
on the transmitter to a level where sound is not distorted.
The audio input level is too high. Specify INST/LINE
input.
Set the MIC/LINE selector according to the input
level of the connected device. (ZRX-HR70)
Shorten the distance between the transmitter and
receiver until audio breakup does not occur.
Change the selected channel, or move the devices
that are causing interference away from the unit.
Do not use the same channel for more than one
transmitter.
When using multiple channels simultaneously, use
channels from a single RF mode, either wide mode
or narrow mode.
Attach the supplied antenna.
Remove your hands from the antenna.
Set the equalizer setting to 0. (ZRX-HR70)
The unit cannot be turned off while RF mode
configuration is in progress. Press and hold the
channel selection button to end configuration before
turning off the unit. (ZTX-B02RC)
Follow the instructions in "Displaying the settings
menu" and "Configuring the receiving channel
settings" (page 15) to configure settings. (ZRX-HR70)
Set the receiver to a channel for which the RF
indicator does not light, and then set the transmitter
to the same channel.
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Troubleshooting