Denon DCD-1500AE Service Manual page 42

Block Diagram
OPIN1-
OPIN1+
48
IN1+ 1
2
IN1-
3
OUT1
IN2+
4
IN2-
5
GND
6
GND 7
OUT2 8
IN3+ 9
10
IN3-
OUT3
11
12
IN4+
13
IN4- OUT4
Note.
Detailed circuit of the output power amp
From input opamp
Vref
SVCC
OPOUT1 VREF GND
47 46 45 44 43
10K
10 K
10 K
10K
10K
10 K
10 K
10K
10 K
10 K
10 K
10 K
14 15 16 17 18
CTL FWD REV GND
40 K
10 K
+
10K
40 K
Pref
40 K
10K
+
10K
40K
Pref1 is almost PVCC1 / 2
Pref2 is almost PVCC2 / 2
OPOUT2
OPIN2+
GND OPIN2-
42 41 40
40 K
40K
40K 10K
40K
10K
40K
10 K
40K
40K
10 K
40K
40K
40K
40K
40K
40K
40K
S M +
S
-
W C
MUTE123
19 20 21
GND SGND MUTE4
MUTE123
DO+
DO-
42
DCD-1500AE
PS PVCC1
39 38 37
POWER
SAVE 36 DO1+
35 DO1-
40K
DO2+
34
DO2-
33
DO3+
32
40K
GND
31
GND
30
DO3-
29
DO4+
28
27
DO4-
DO5+
D
26
D
25
DO5-
MUTE4 TSD-M
22 23 24
TSD-M PVCC2