Sony PCM-3348HR Quick Reference page 75

Coarse INPUT LEVEL controls (PCM-3324S only)
These adjust the input levels of the analog signal for each digital audio channel.
Adjustment range: –2 dB to +10 dB
DE-EMPHASIS lamps
These lamps light when de-emphasis is being carried out on the corresponding
digital audio channel. De-emphasis is automatically switched on and off depending
on the emphasis information in the digital audio signal input to this board.
EMPHASIS switches (PCM-3348HR only)
The emphasis circuits can be turned on and off individually for each channel with
these switches when the EMPH switch in the system control block is set to INDIVI.
ON: The emphasis circuit of the corresponding channel is activated.
OFF: The emphasis circuit of the corresponding channel is not activated.
The switches are set to OFF at the factory.
When the EMPH switch in the system control block is set to ON, the emphasis
circuits for all the channels on the DAD board are activated, regardless of the
settings of these EMPHASIS switches on the board.
When the EMPH switch is set to OFF, the emphasis circuits for all the channels on
the DAD board are not activated, regardless of the settings of these EMPHASIS
switches.
When the EMPH switch is set to AUTO, the emphasis circuits are turned on and off
according to the emphasis ON/OFF information recorded on the tape.
Switches and Lamps on Internal Boards
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