Sony HAP-Z1ES Help Manual page 159

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You can only adjust the volume or mute the sound if you have configured the [Amp Control Settings] so that the connected
amplifier can be operated using the remote control or HDD Audio Remote.
Hint
If you operate the connected amplifier using the remote control supplied with the HDD AUDIO PLAYER, operation of
the amplifier may become inconsistent (operating at times but not operating at other times) due to interference of the
remote control signal, especially if you continuously control the volume.
For example, if the infrared signal from the supplied remote control directly enters the remote sensor (receiver) of the
connected amplifier, interference may occur with the signal input from the IR input jack of the amplifier or the signal
output from the installed IR blaster. This causes the amplifier to fail to receive the correct signal, resulting in
inconsistent response from the amplifier.
In this case, place the amplifier in a location where it will not be affected by the infrared signal of the remote control of
the HDD AUDIO PLAYER.
It is recommended that you use HDD Audio Remote, to avoid interference problems.
Related Topic
Operating a Sony amplifier using the remote control or dedicated application
Operating an amplifier manufactured by another company using the supplied remote control or a dedicated application
Notes on use
4-472-856-11(1)
Copyright 2013 Sony Corporation
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