INTEGRATED AMPLIFIER L-507u
15
Block Diagram
MAIN
IN
PRE
OUT
MODE
BALANCE
PRE
AMP
LINE
STRAIGHT
SUBSONIC
MUTE
METER
METER
AMP
SPEAKER SELECT
OR/
PROTECT
OR
DC.
OC.
TEMP
.
FOR
PROTECT
OR
FOR
μ
-COM
FOR
EQ
AMP
T
ONE
AMP
PRE
AMP
POWER
TRANSFORMER
BACKUP
TRANSFORMER
FUSE
POWER
REG
REG
REG
REG
FOR
FINAL
DRIVER
REG
+B1
–B1
–B2’
–B2
+B2
A-SPEAKERS
B-SPEAKERS
PHONES
+
–
+
–
+
–
FOR
MAIN
AMP
ODNF
B2
L
B1
L
B1
R
B2
R
PHONO
LINE-2
LINE-1
LINE-3
LINE-4
EQ
AMP
RIAA
MM/MC
BALANCED
LINE-1
PHASE
BAL/UNBAL
AMP
1
2
3
PHASE
BALANCED
LINE-2
BAL/UNBAL
AMP
1
2
3
INPUT
SELECT
OR
REC
SELECT
OR
T
ONE
AMP
TREBLE/BASS
CONTROL
REC SELECT
OR
μ
-COM
INPUT
SELECT
OR
stand by/on
SWITCH
REMOTE
SENSOR
LINE-1
BAL/UNBAL
REC OUT
MONIT
OR
REC OUT
rec-2
MONIT
OR
rec-1
