Denon DCD-1500AE, Service Manual

Page: 42 / 88

42
DCD-1500AE
Block Diagram
40 K
10 K
Note.
+
+
40K
10K
Pref
DO+
DO-
Detailed circuit of the output power amp
10K
10K
40 K
40 K
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
OUT4 IN4-
IN4+
OUT3
IN3-
OUT2
IN2-
IN2+
OUT1
IN1-
6
IN3+
37 38 39 40 41 43 44 45 46 47 48
IN1+
OPIN1+
OPIN1-
OPOUT1
SVCC
VREF OPIN2-
OPOUT2
PS PVCC1
DO1+
42
OPIN2+
24 23 22 21 20 18 17 16 15 14 13
CTL FWD REV GND TSD-M PVCC2
MUTE123
19
DO5-
DO1-
POWER
SAVE
MUTE123
MUTE4 TSD-M
40 K
40K
40K
40K
10K
10 K
10 K
10K
40K
40K
40K
40K
10K
10K
10 K
10 K 40K
40K
40K
40K
10K
10 K
10 K
10K
40K
40K
40K
40K
10 K
10 K
10 K
10 K
D
D
M
S
C
+ S
W
GND
GND
GND SGND MUTE4
GND
GND
GND GND
-