Lexicon PCM 81 - REV 2 - Connectors; MIDI; Setting Audio Levels

1-10
Getting Started
Lexicon
MIDI
Five-pin DIN connectors are provided for MIDI IN, THRU and OUT.
Use standard 5-pin DIN MIDI cable assemblies, available from your
local dealer.
CONNECTORS
Mating
Signal Connector Description
L and R Analog XLR A3M Active balanced, pin 2 high
Audio Input +2dBu min; +20dBu max
at 0dB setting
L and R Analog XLR A3F Active balanced, pin 2 high
Audio Output -2dBu to +18dBu
at full scale output
AES/EBU XLR A3M Balanced RS-422
Digital Input pin 2 high
AES/EBU XLR A3F Balanced RS-422
Digital Output pin 2 high
S/PDIF 1/4" EIAJ Consumer Digital
CP-340 Type II Audio Format
Consumer Digital tip high
Audio Input and
Output
MIDI In 5-pin DIN Standard MIDI Interface
MIDI Out
MIDI Thru
SETTING AUDIO LEVELS
The PCM 81, with both analog and digital input and output
connections, requires some attention to proper setting of signal
level.
Analog inputs are first gain-conditioned by the rear panel input
gain switch, and then by the front panel INPUT knob. Proper
setting of both the switch and knob are important for best
performance of the A/D converter. Audio data from the A/D
converter is level adjusted by the Analog Lvl parameter before
reaching the effects processors. Digital inputs are also level
adjusted before reaching the effects processors via the Digital Lvl
parameter.
Analog and the selected digital source are mixed at the input to the
effects processors. For example, setting both Analog Lvl and Digital
Lvl to 50% will mix the analog and the selected digital input
signals equally and send them to the effects. Creating a mix which
exceeds 100% can cause overload.
2 = high
3 = low
1 = ground
1 = ground
3 = low
2 = high
Female
Male
Pin 2 high by convention