Marantz N1G Service Manual Page 46

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3-19
Internal Block Diagram
40K
10 K
Note.
+
+
40K
10K
Pref
DO+
DO-
Detailed circuit of the output power amp
10K
10K
40K
40K
Pref1 is almost PVCC1 / 2
Pref2 is almost PVCC2 / 2
From input opamp
Vref
36
35
34
33
32
30
29
28
27
26
25
DO5+
DO4-
DO3-
DO3+
DO2-
DO2+
31
DO4+
1
2
3
4
5
7
8
9
10
11
12
OUT4IN4-
IN4+
OUT3
IN3-
OUT2
IN2-
IN2+
OUT1
IN1-
6
IN3+
3738394041434445464748
IN1+
OPIN1+
OPIN1-
OPOUT1
SVCC
VREF OPIN2-
OPOUT2
PS PVCC1
DO1+
42
OPIN2+
2423222120181716151413
CTL FWD REV GND TSD-M PVCC2
MUTE123
19
DO5-
DO1-
POWER
SAVE
MUTE123
MUTE4 TSD-M
40K
40K
40K
40K
10K
10K
10K
10K
40K
40K
40K
40K
10K
10K
10K
10
K
40K
40K
40K
40K
10K
10K
10K
10K
40K
40K
40K
40K
10K
10K
10K
10K
D
D
M
S
C
+S
W
GND
GND
GND SGND MUTE4
GND
GND
GND GND
-
IC508 : FAN8042
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