Pioneer VSX-LX503 Instruction Manual page 105

Checking the input format and listening mode
Pressing repeatedly will switch the display of the main unit in the following
order.
Input source and volume
Listening mode
Input format
The display is switched in
a few seconds.
Sampling frequency
Input signal resolution
Contents Connections
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105
Front Panel≫ Rear Panel≫ Remote≫
Playback Setup
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