Philips PB52.1HU LA Service Manual page 61

Circuit Diagrams and PWB Layouts
SSB: Audio Protection/Mute Control
1 2
AUDIO PROTECTION/MUTE CONTROL
B05B
A
3D90-1
B 1 8
VP
22K
3D63
DC-SENSE
220K
C
22K
VN
5 4
3D90-4
D
RES
2D74
GNDSND
cDA0
E
GNDSND
3139 123 6309.3
1 2
PB52.1HU LA 7.
3 4
+3V3-STANDBY
VPIC
ID87
ID70
3 7D00-1
9 LM339P
ID86
14
8
12
GNDSND
VNIC
VPIC
7D00-4
3
GNDSND
FD64 7 LM339P
1
ID73
6
12
VNIC
GNDSND
3 4
61
5 6
+3V3-STANDBY
2D73
10u
GNDSND
FD65
ID72
6D63 3D80
7D70
BC847BW
ID88
100K
BAS316
GNDSND
3D89
100K
VPP
VNN
7D63-1
BC847BPN
1
ID75
2
6
ID77
ID71
4
BC847BPN
7D63-2
3
ID79
ID80
VNN
5 6
7 8
B05B
STANDBY
7D71
PDTC114EU
AUDIO-PROT
AUDIO-MUTE
VP
MUTE
7D64-2
BC847BPN
ID78
5
ID82
6
3D76-4
2 ID84 5 4 AUDIO-MUTE
7D64-1
BC847BPN
22K
1
GNDSND GNDSND
7 8
9
2D72 C3
2D73 A5
2D74 D2
3D62 B3
3D63 C2
3D64 B6
3D71 D3
3D73 D6
3D74 C5
3D75 D6
3D76-1 D7
A
3D76-2 E7
3D76-3 E8
3D76-4 E8
3D78 D5
3D79 D5
3D80 B5
3D83 E6
3D89 C6
3D90-1 B2
3D90-2 B4
3D90-3 B5
B
3D90-4 D2
6D62 E6
6D63 B5
7D00-1 B4
7D00-4 C4
7D63-1 C6
7D63-2 D6
7D64-1 E7
7D64-2 D7
7D70 B6
7D71 A7
FD64 C3
C
FD65 B6
ID70 B3
ID71 D5
ID72 B6
ID73 C3
ID75 D5
ID77 D6
ID78 D7
ID79 E6
ID80 E6
ID82 E7
ID84 E8
D
ID86 B4
ID87 B4
ID88 B5
cDA0 E2
E
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