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Owner’s Manual
Owner’s Manual
1+
1–
2–
2+
1+
1–
2–
2+
INPUT A
BALANCED
LINE INPUT
(TRS)
INPUT A
BALANCED
LINE INPUT
(XLR-F)
INPUT B
BALANCED
LINE INPUT
(TRS)
FR SERIES
BLOCK DIAGRAM
28.12.05
INPUT B
BALANCED
LINE INPUT
(XLR-F)
AMP
MODE
SWITCH
STEREO
MONO
BRIDGE
STEREO
MONO
BRIDGE
STEREO
MONO
BRIDGE
1
2
3
1
2
3
CHANNEL A
LEVEL
CHANNEL B
LEVEL
SUBSONIC
FILTER
ON
OFF
ON
OFF
ON
OFF
ON
PROTECTION
DC OFFSET
OVER TEMP
SHORT CIRCUIT
CURRENT LIMIT
OFF
CLIP
LIMITER
OL
POWER
AMPLIFIER
–VDC
+VDC
CHANNEL A
SPEAKER
OUT
BRIDGED
SPEAKER
OUT
1+
1–
2–
2+
POWER
AMPLIFIER
–VDC
+VDC
CHANNEL B
SPEAKER
OUT
OL
SIG
SIG
+
–
+
–
+
–
+
–
+
–
+
–
VDC (CHANNEL A)
TOROIDAL POWER
TRANSFORMER
BREAKER
FUSE
FUSE
TEMP
SENSOR
(ON HEATSINK)
FAN
VARIABLE
SPEED
CONTROL
HI DCV
HI DCV
LO DCV
LO DCV
POWER
SWITCH
POWER
+
–
VDC (CHANNEL B)
+
–
FUSE
FUSE
FAN FAN SPACEMAN
Block Diagram