Mono Carrier: Class D - Audio Amp. (Res) (A6) - Philips 32PF9968/10 Service Manual

Circuit Diagrams and PWB Layouts
Mono Carrier: Class D - Audio Amp. (Res)
1 2
CLASS D - AUDIO AMPLIFIER
A6
2931
560p
3931
A
150K
Audio_Gnd
2928
1n0
2930 3930
MAIN_OUTL
A4
10K
100n 2934
220p
2932
3932
4K7
1u0
B
2933 3933
2K7
120p
Audio_Gnd
7904
BC857B
C
3962
VOL_MUTE
1V5
A4
4K7
3948
D
47K
-Vaudio
2936
560p
3937
150K
Audio_Gnd
2929
E
1n0
2935
3936
MAIN_OUTR
A4
100n 2939 10K
220p
3938 2937
4K7
RES 1u0
2938
3939
1222
1
120p 2K7
2
Audio_Gnd
3
4
5
F
6
Vaudio+
Audio_Gnd
3141 053 3129.3
1 2
L04A AD 7.
3 4
(RESERVED)
Vaudio+
Vaudio-
2977
1u0
Audio_Gnd
8
3
1 -9V1
2
470u 35V
7901-1
2948
LM393N
4
Audio_Gnd
-V
3935 Vaudio-
100K
+Vaudio
Vaudio-
7902
2960 TDA8925J
22u
2942
1V6 -9V1 1
100n
2
-2V7
4
-2V8
9
3947
-8V8 15
Audio_Gnd
39K
-9V1 17
16
7903
BC847B -2V8 -2V8 14
-15V6
35V 470u
6904
-V Audio_Gnd
BZX384-C27
8
5
7 -9V1
6
7901-2
LM393N
4
-V
3941
100K
3 4
32
5 6 7
6906
Vaudio+
Vaudio-
BAV99
2951
+Vaudio
47n 2961
2950
25V 47u
47n
2949 3960
5914
100K -Vaudio
RES
9914
6905 2
22u
1 3
2947 P0102DA
47n
Vaudio+
VDD1 VDD2
CLASS-D
AMPLIFIER
2952
6 10V7
SW1 BOOT1
4911
REL1 1u0
EN1 5911 5901
7
OUT1
33u
3955
STAB
3 -2V8
DIAG
POWERUP
4R7
2953
12 10V5
BOOT2
SW2 1u0
REL2
11
EN2 OUT2
2971
VSS1 VSS2
3971
2945
4R7
Vaudio-
4912
2946
Vaudio+
5912
47n
5 6 7
8 9
3975
+9VB
*
* 9911 9913
1903 5913
Vaudio+
RES
Vaudio+1
VALUE
MRT
9910
V_DG
7906
BC327-25 6903
3965
VT_Supply
10K
BAS316
5910
RES
4913
Vaux_GND
Vaudio-
9915
-V
4910
Audio_Gnd
Vaux_GND
Audio_Gnd
2984
Audio_Gnd
220n
Audio_Gnd
2980
220n
Audio_Gnd
5907
33u
2955
Vaudio-
680p
2954
Vaudio+
680p
Audio_Gnd Audio_Gnd
Vaudio-
680p Audio_Gnd
2970
Vaudio+
680p
5902
3957
5908
33u
33u
39K
Audio_Gnd Audio_Gnd Audio_Gnd
4914 4916
4915 4917
G_15880_006.eps
Audio_Gnd
8 9
1222 F1 3975 A7
1902 C9 4910 B9
A6
1903 A7 4911 C7
2928 A2 4912 D7
2929 E2 4913 B7
2930 A2 4914 F8
2931 A2 4915 F8
2932 B2 4916 F8
2933 B2 4917 F8
2934 B2 5901 C7
A
2935 E2 5902 D7
2936 D2 5907 C8
2937 E2 5908 D8
2938 F2 5910 B7
2939 E2 5911 C7
2942 C4 5912 D7
2945 D5 5913 A8
2946 D5 5914 B7
2947 B5 6901 D2
2948 B5 6903 A9
2949 B5 6904 E3
2950 A5 6905 B5
B
2951 A5 6906 A6
2952 C6 7901-1 B3
2953 D6 7901-2 E3
2954 D7 7902 C5
2955 C7 7903 D3
2957 C8 7904 C2
2958 C8 7906 A8
2960 C4 9910 A7
2961 A5 9911 A7
2963 B6 9913 A8
2970 D7 9914 B7
C
2971 D7 9915 B7
2972 E7
2973 E8
2974 E8
2977 A4
2978 B8
2979 B8
1902
2980 C8
5
4 2981 E7
3
2982 C8
2
2983 E8
1
2984 C8
D
3930 A2
3931 A2
3932 B2
3933 B2
3934 B3
Vaudio+
3935 B3
3936 E2
3937 E2
3938 E2
3939 F2
3940 F3
3941 F3
E
3942 B4
3943 C4
3945 E9
3946 D2
3947 C3
3948 D2
3949 C4
3952 C6
3953 D6
3955 C7
3956 C8
3957 D9
3958 A5
F
3959 C3
3960 B5
3961 C3
3962 C2
3964 B8
3965 A8
3971 D7
3972 E9
100206
3973 A3
3974 C4