Block Diagram - Marantz PM-12 SE Service Manual

BLOCK DIAGRAM

+20.0dB
MC
HEADAMP
PHONO
CD
LINE1
LINE2
REC1
REC2
POWER
AMP
IN
Rch
Rch INPUT SELECTOR
+40.0dB
PM-12 BLOCKDIAGRAM
PHONO EQ AMP
0dB
TONE BUFFER
OP amp
BASS : 50Hz ±6dB
(NJM8068)
TREBLE : 20kHz ±6dB
+30dB
UNBAL-BAL AMP
with DC servo
+
-
NJU72322
-
+
+30.6dB
HP AMP
OP amp + Tr Buffer
(NJM2082)
0dB
REC OUT BUFFER
OP amp
(NJM8080)
26
T. Murayama
TOTAL GAIN
42dB
+12.4dB
CLASS D
OUTPUT STAGE
SPEAKER
NC500
OUT
+
+
-
SPK
-
HEADPHONE
OUT
REC1
OUT
LINE DETECT
AMP
REC2
DETECT
OUT
OP amp
(NJM8080)
2018/3/8