Crest Audio XRM - 12 - Manual (Page 4)

XRM owner’s manual
p. 4
XRM block diagram
BAL XLR
IN
BAL
LINE IN
INPUT PREAMP
GAIN
10 - 70 dB
FOUR BAND EQ
LEVEL LF
LO
W MID
H I MID
H F
HPF
LINE
(MIC P
AD)
26dB PA
D
PRE-SOURCE
SELECT
PRE
SOURCE MUTE ?
SOLO DC
+10
MUTE
INSER
T
SEND / R
T N
+48V ON
EQ ON
F ADER AMP
PRE-SOURCE
B UFFER
NO YES
SOLO LEFT
MAIN RIBBON CABLE
-
40 W
A Y
XRM MONO INPUT MODULE
12 MONO INPUTS A
V AILABLE
HPF 70Hz
-18dB/Oct
FREQ
INPUT SIGNAL
LED
PRE F ADER
POST F ADER
LEVEL
LEVEL
FREQ
LEVEL
SOLO RIGHT
12 KHZ
400 - 8 KHZ
80 - 2 KHZ
80 HZ
XRM BLK DIA-REV1.0 - 5/20/02
PFL
SOLO
TRIGGER
CHAN F ADER
MIX 1-4 PRE
PRE F ADER
PRE EQ
PRE INSER
T
REAR P
ANEL
GAIN
15 - 60 dB
FOUR BAND EQ - LEFT
LEVEL LF
LO
W MID
H I MID
H F
LINE
(MIC P
AD)
PRE
SOURCE MUTE ?
+10
MUTE
+48V ON
EQ ON
F ADER AMPS
PRE-SOURCE
B UFFERS
NO YES
SOLO LEFT
XRM STEREO INPUT MODULE
4 STEREO INPUTS A
V AILABLE
SUM MONO
FREQ
POST F ADER L & R
LEVEL
LEVEL
FREQ
LEVEL
SOLO RIGHT
12 KHZ
400 - 8 KHZ
80 - 2 KHZ
80 HZ
PFL
SOLO TRIGGER
CHAN LEVEL
PRE F ADER PRE EQ
REAR P
ANEL
BAL
LINE IN
INPUT PREAMP
26dB PA
D
LF
LO
W MID
H I MID
H F
12 KHZ
400 - 8 KHZ
80 - 2 KHZ
80 HZ
FOUR BAND EQ - RIGHT
+10
PRE-SOURCE
SELECT
PRE F ADER PRE EQ
LEFT RIGHT
LEFT RIGHT LEFT RIGHT
LEFT RIGHT
PRE F ADER L & R
PRE-AMP
OUT L & R
PRE F ADER
POST F ADER
PRE EQ
ODD MIX BAL
OUT
MIX INSER
T
SEND / R
T N
XRM MIX P
AIR
1 OF 6 P
A
IRS SHO
WN
ODD
MIX AMP
+10
PEAK (AFL) SIG
SIG/PK LED
POST F ADER
ODD F ADER 60MM PRE F ADER
ODD MIX B US IN
SOLO DC SOLO LEFT SOLO RIGHT
AFL-ODD
PEAK (PFL) SIG
TO PEAK CIRCUIT
R G
INPUT SIGNAL LED
PEAK (PFL) SIG
R G
SOLO DC
TO
PEAK CIRCUIT
G R
M1 M2
MONIT
OR
OUT - L
MONIT
OR / HP
LEVEL
L R
HEADPHONE
AMP
SOLO LEFT
SOLO
MIX AMPS
SOLO DC
SOLO FEED L - R
SOLO CONTR
O L
LOGIC
+9 6 3 0 -3 6 9 12 15 18 21 24
SOLO ON
PWR ON
LED
METERS
FOLLO
W SOLO
ON
PO
WER
A C IN
100
-240V
50
/60 Hz 80W
X-RA
CK REAR P
ANEL:
A C INLET & SWITCH
UNIVERSAL INPUT
-V
OL
T A GE
SWITCHING PO
WER SUPPL
Y
+17V -17V +12V +48V
INTERNALL
Y FUSED AND
SHOR
T -CIRCUIT PR
O TECTED
T O PO
WER
DISTRIB
UTION
RIBBONS
ANALOG GR
OUND
A UX DC
GR
OUND
SAFETY GR
OUND
T O CHASSIS
CHASSIS GR
OUND
BNC CONNECT
OR
FOR 12V
OL
T LAMP
( ON FR
ONT P
ANEL )
SHOR
T -CIRCUIT
PR
O TECTION POL
Y
FUSES
XRM BLOCK DIA
GRAM
GC
P
GAIN
RO
T A RY
POT
P A D
LED
AMP
P ANEL
SWITCH
F ADER
FET
SWITCH
BALANCED
DRIVER
ALL SWITCHES SHO
WN IN
THE UP (DESELECTED) POSITION
AMP(LIFIER) GAIN SHO
WN IN DB
WHEN NEEDED
WHEN SHO
WN:
1/4”
TRS SWITCHING J
A CKS HA
VE NORMALL
Y CLOSED CONT
A CTS
USER OPTIONS IMPLEMENTED WITH REMOV
ABLE LINKS AND SOLDER BLOBS
DEF
A U
LT
OPTION POSITION SHO
WN UNDERLINED
GROUND COMP
DRIVER
BICOLOR
LED
1/4”
TRS
JA
C K
XLR JA
C
K
OBE FRANK
ELECT SWITCH
ST
AND
ARD OUTPUT LEVEL IS +4 dBu A
T 0
VU
PIN 2 HO
T ON ALL BALANCED INPUTS AND OUTPUTS (XLR J
A CKS)
FOR UNBALANCED OPERA
TION:
TIE PIN 3
T O
PIN 1, USE PIN 2 FOR OUTPUT
, PIN 1 FOR GND
“Ø”
SYMBOL INDICA
TES POLARITY REVERSE
LEGENDS
USER OPTIONS
SOLDER BLOB
FITTED LINK
RCA JA
C K
SOLO LINK
IN
OUT
Use 5-Pin DIN cab
le to
inter
connect tw
o Consoles
SOLO-LINK CONNECT
ORS
.
USE 5-PIN DIN CABLE FR
OM
SLA
VE CONSOLE OUT
T O MASTER CONSOLE IN
SOLO-LINK:
TIES SOLO A
UDIO AND
CONTR
OL BETWEEN
CONSOLES
. SLA
VE SOLOS
SHO
W UP ON MASTER CONSOLE.
DC OUTPUT
PIN 1 LIFT
MIX SENDS 1 & 2
LEV / LEV
__
LEV / P
A N
SWITCHING
M3 M4
MIX SENDS 3 & 4
LEV / LEV
__
LEV / P
A N
SWITCHING
M5 M6
MIX SENDS 5 & 6
LEV / LEV
__
LEV / P
A N
SWITCHING
M7 M8
MIX SENDS 7 & 8
LEV / LEV
__
LEV / P
A N
SWITCHING
M9 M10
MIX SENDS 9 & 10
LEV / LEV
__
LEV / P
A N
SWITCHING
M11 M12
MIX SENDS 11 & 12
LEV / LEV
__
LEV / P
A N
SWITCHING
26dB PA
D
PIN 1 LIFT SPLIT OUT
BAL XLR
IN
SPLIT OUT
BAL XLR
IN
SPLIT OUT
MIX 1-4 PRE
M1 M2
MIX SENDS 1 & 2
LEV / LEV
__
LEV / P
A N
SWITCHING
PRE F ADER
M3 M4
MIX SENDS 3 & 4
LEV / LEV
__
LEV / P
A N
SWITCHING
M5 M6
MIX SENDS 5 & 6
LEV / LEV
__
LEV / P
A N
SWITCHING
M7 M8
MIX SENDS 7 & 8
LEV / LEV
__
LEV / P
A N
SWITCHING
M9 M10
MIX SENDS 9 & 10
LEV / LEV
__
LEV / P
A N
SWITCHING
M11 M12
MIX SENDS 11 & 12
LEV / LEV
__
LEV / P
A N
SWITCHING
SUM
HPF HPF 40Hz
-18dB/Oct
EVEN MIX BAL
OUT
MIX INSER
T
SEND / R
T N
EVEN MIX AMP
+10
PEAK (AFL) SIG
SIG/PK LED
POST F ADER
EVEN F ADER 60MM PRE F ADER
EVEN MIX B US IN
G R
HPF HPF 40Hz
-18dB/Oct
STEREO P
A IR
STEREO
PA
IR
LO-CUT
ON
AFL-EVEN
CTRL T
O
INPUT SENDS
SOLO LOGIC
&
SWITCH AFFECTS BO
TH
ODD & EVEN
SOLO RIGHT
SPEAKER
ON
MONIT
OR
OUT - R COMMON INPUT - L
COMMON
INPUT LEVEL
ODD
MIX B
USES
1 3 5 7 9 11 2 4 6 8 10 12
EVEN
MIX B
USES
L R
SOLO AND MONIT
OR CIRCUITS
HEADPHONE
JA
C K
COMMON INPUT - R
COMMON INPUT CIRCUITR
Y