Lexicon PCM 91, Руководство пользователя

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1-3
Product Overview
AC Power
Standard 3-pin IEC
power connector. 100-
240V, 50-60Hz auto-
matic switching to cor-
rect voltage range.
MIDI
IN
Receives MIDI infor-
mation from other
MIDI equipment such
as master keyboard
controllers, MIDI foot
controllers, sequen-
cers and synthesizers.
THRU
Passes received MIDI
data without change.
OUT
Transmits MIDI data to
other equipment.
Footswitch
1/4" Tip/Ring/Sleeve
phone jack for two in-
dependent momen-
tary footswitches
AES/EBU and S/PDIF Inputs
AES/EBU format digital connectors conform to
AES professional standards. S/PDIF format digi-
tal connectors conform to CP-340 Type II and
IEC-958 consumer standards. Only one of these
options (AES or S/PDIF) may be selected for
input.
Input Level
2-position (In/Out)
switch for matching in-
put gain to the source
being used. In position
adds 20dB of input
gain (unbalanced) to
the input stages. Out
position provides 0dB
of gain (balanced).
Balanced Inputs
Combined 3 pole XLR
and 1/4" jacks, elec-
tronically balanced.
Input impedance is
50k
Ω
unbalanced,
and 100k
Ω
balanced.
Inputs accept input
levels from -22dBu to
+20dBu.
Foot Controller
1/4" Tip/Ring/Sleeve
phone jack provided
for footpedal with
10k
Ω
to 100
Ω
imped-
ance.
Rear Panel Overview
Balanced Outputs
Output impedance is
105
Ω
, balanced, and
levels up to +18dBu
maximum full scale. 1/
4" phone connectors
and XLRs provided.
Both S/PDIF and AES
outputs are active at all
times.