Audio Section - Philips AZ3830/55 Service Manual

CIRCUIT DIAGRAM - WMA BOARD

AUDIO SECTION

Notes:
The C79 ,C91 must be placed as near to the CD18 as
possible
R83
DAC_LN
C79
1.5nF
R87
DAC_LP
R94
DAC_RP
C91
1.5nF
R97
DAC_RN
C37 0.1uF
4K7 R84 22K
C78
1.5nF
4K7 R88 22K
C84
1.5nF
R91 1K
AMP_VCC
4K7
R95 22K
C92
1.5nF
4K7 R98 22K
C96
1.5nF
AMP_Mute
C75 220pF
R82 18K
2
1
3
D4558
IC11A
C80
100pF
C85 R90
220pF 18K
AMP_VCC R86
R92
1K C88 R93
220pF 18K
5
+
7
C93
6
-
100pF D4558
IC11B
R99 18K
C95 220pF
MAIN_VCC
Q3 BC807-25
R72 1K
R072
10K R75
47K
C77 100uF/6.3V R110
R109 R03 1K
47K
7V5
10R
R111 620R
C90 100uF/6.3V
R112 R04 1K
47K
620R
CD_LCH
Q01
1
BC817-25
CD_RCH
Q02
1
BC817-25