Philips FW-C870/19 - CENTER & SURROUND AMPLIFIER (40 W + 40 W)

&7#
P5-VA C/S Amplifier 99 09 24
STK407_040B
1k8
–VL
100k
2
AMP OFF
GND
NC
2
3
4n7
100k
S
NC
DC
1
4
1
C
3
From 1268
(2x 130W + C/S)
POWER SUPPLY
–VL
GND C
9
11
8
DC
47E
22µ 47n
GND
+VL
7
6
+VL
5
10µ
47E
22µ 47n
470E
470E
–VP
470E
BC547B
–VL
1N4148
2µ2
100k
–VL
10k
BC547B
–VP
10k
–VP
33k
220E
47n
BC557B
100k
10k
–VL –VL
1000µ
1k
BC547B
–VL
–VP
470E
100k
2
56k
µ2
100k
2
56k
µ2
–VP
–VP
4p7
22µ
220p
0E22
NF213
56k
8
BC547B
3k3
1k8
BC547B
3k3
–VC2
1
CCC12
IN2
3n3 470p
14
NF111
3n3 470p
470E
+VP
+VL
+VP
IN1
4p7
µ22
10
220p
+VP
9
56k
0E22
–VC1
2
OUT2 7
4E7
47k
47n 4n7
3
1
L
47k 47k
DC
47n
47k
4n7
2
C
+VL
+VC
3
OUT1 6
4E7
1
2
4
R
SURROUND
CENTER
–VL
10µ
–VL –VL –VL –VL –VL
10µ
1N4148
1
2
3
10
–VL
GND S
C
GND
S
100k
100k
BZX79/
C39
–VL–VL
BZX79/
C39
47n
15Substrate
150k
+VL
150k
+VL
SOAR PROTECTION
CENTER &AMPLIFICADOR SURROUND (40W + 40W)
CIRCUIT
MUTE
3966
3965
1928
0022
6921
29402939
9950
9949
1921
3963
5921
2955
3969
3970
2953
3967
2956
1925
2954
3968
3964
5922
3941
7930
3931
2927
2933
3929
2937
3921 2923
29292925
29302926
3935
7923
7924
3936
3932
3940
2928
3930
2934
2938
3938
39273925
3928
3922 2924
3926
7927
3978
2952
3979
7932
2936
3980
3948
39473946
3981
3983
3982
2957
3984
–VL
10k
3985
6939
7931
7925
2950
2944
3933
2946
2951
2945
3934
1922
3945
2931
3937
3993
3994
69416942
2932
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
AA
BB
CC
DD
EE
FF
GG
HH
0022 A2
1921 C18
1922 C2
1925 E18
1928 D2
2923 B8
2924 D8
2925 C9
2926 E9
2927 A9
2928 G9
2929 C9
2930 E9
2931 C2
2932 D14
2933 B9
2934 G9
2936 G7
2937 A10
2938 G10
2939 G11
2940 H14
2944 F3
2945 H3
2946 F2
2950 F3
2951 H3
2952 F6
2953 C15
2954 E15
2955 C17
2956 E17
2957 G5
3921 B7
3922 D7
3925 C8
3926 E8
3927 C8
3928 E8
3929 A9
3930 G9
3931 A10
3932 F10
3933 F2
3934 G2
3935 H13
3936 H12
3937 G13
3938 G11
3940 H11
3941 H14
3945 E4
3946 F5
3947 F6
3948 E6
3963 C15
3964 E15
3965 C15
3966 E15
3967 D16
3968 F16
3969 D17
3970 D17
3978 E7
3979 G8
3980 G8
3981 G6
3982 G5
3983 G6
3984 G5
3985 G4
3993 D16
3994 F16
5921 C15
5922 E15
6921 E4
6939 G5
6941 G16
6942 G16
7923 G13
7924 G12
7925 E6
7927 G8
7930 B12
7931 G5
7932 G7
9949 C16
9950 E16
–37V–37V
–37V
+37V
+37V
–37V
–37V –37V
–37V –37V
–37V –37V
–37V
–37V
–37V
+37V
+37V
–37V –37V –37V –37V –37V –37V
–37V
+37V +37V
0V
0V
0V
0V
MUTE = –37V
AMP ON = –35V
0V
0V
0V
–37V–37V
.....V Amplifier ON
–37V
–37V
–37V
–37V
0V
0V
0V
AMP ON = –52V
AMP OFF (MUTE) = 4,7V
+37V
+33V