Mono Carrier: Audio Amplifier (A7) - Philips 32PF9968/10 Service Manual

Circuit Diagrams and PWB Layouts
Mono Carrier: Audio Amplifier
1 2
AUDIO AMPLIFIER
A7
A
B
MAIN_OUTL
A4
C
MAIN_OUTR
A4
D
VOL_MUTE
A4
To 1683 of
E
HERCULES
Stdby_Con
A4
F
MUTING
A5
3141 053 3129.3
1 2
L04A AD
3 4
2985
RES
F950 3985 I953
1K0
2991
RES
I954
F951 3991
1K0
3994
Vaudio+1
68K 7992
BC847B
4984
I958
0V7
3984
56K
7993
BC847B
6990 I959
1282
BAS316
3998
7994
BC847B
10K
3 4
7. 33
5 6 7
7990
16V2 7
TDA2616Q
2989 I951
220n
1 INV1-
MUTE
2
16V0
V|GND
3
0V0
2992 I952
9 INV2-
220n
8 INV12
0V0
I955
-17V0
5
7991
16V0
BC847B
0V0 0V0
0V0
0V0
5 6 7
8 9
Vaudio+1
OUT1 0V1 AmpOutL
4
3989
I956 F952
2994
5
4
10R
22n
3
6993
6991 F955
2
1
BZX384-C3V3 BAS316
2911 Audio_Gnd F953
1283
1u0 Audio_Gnd
OUT2 AmpOutR
6
Audio_Gnd
I957 3993
0V1 2995
10R
22n
-Vaudio
Audio_Gnd
8 9
10
1280 C10
1281 C10
A7
1282 E3
1283 C9
2911 C8
2916 D6
2917 E4
A
2918 F5
2985 B4
2986 B8
2987 B7
2988 D7
2989 B5
2990 C5
2991 C4
2992 C5
2993 C5
2994 C8
2995 C8
B
2996 C9
2997 D9
3984 D3
3985 B4
3986 D3
3987 C8
3988 C5
1280 1281 3989 C9
5 3990 C8
8 ohm / 15W
4
3991 C4
3
3992 C5
2
C
3993 C9
1
8 ohm / 15W
3994 D5
3995 C6
3996 D5
3997 E4
3998 F3
3999 E4
4984 D3
4992 F5
6990 E3
6991 C8
6992 F5
D
6993 C8
7990 B6
7991 D6
7992 D5
7993 E5
7994 F3
F950 B4
F951 C4
F952 C9
F953 C9
F955 C9
I951 B6
E
I952 C6
I953 B5
I954 C5
I955 D6
I956 C8
I957 C8
I958 D4
I959 E4
F
G_15880_007.eps
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