Class D - Audio Amplifier (Diagram A6) - Philips L04E Service Manual

Circuit Diagrams and PWB Layouts
Mono Carrier: Class D - Audio Amplifier
1 2
CLASS D - AUDIO AMP
2931
560p
A
3931
150K
Audio_Gnd
2928
1n0
2930 I909 3930
MAIN_OUTL
A4
10K
100n 2934
220p
3932 2932
4K7
1u0
2933
I913 3933
B
2K7
120p
Audio_Gnd
7904
BC857B
I920
F901 3962
VOL_MUTE
1V5
C
A4
4K7
3948
47K
D
-Vaudio
2936
560p
3937
150K
Audio_Gnd
2929
1n0
E
2935 I925 3936
MAIN_OUTR
A4
10K
100n 2939
220p
3938 2937
4K7
1u0
2938
3939
1222
1
2K7
120p
F910
2
Audio_Gnd
3
4
5
F911
6
F
Vaudio+
Audio_Gnd
Europe ROW
3975 100R, 2W 150R, 2W
AMP-ST-5W-GL AMP-ST-10W+20W-GL AMP-ST-15W/20W-GL
1903 JMP ---
---
---
9911 FUSE RAD LT 2A 250V IEC FUSE RAD LT 2A 250V IEC
3139 123 5676.1
1 2
L04E AB 7.
3 4
Vaudio+
2951
Vaudio-
I941
2977
47n
1u0 2950
Audio_Gnd
8
47n
I910
3
2949
I916
1 -9V1
I911
2
470u
7901-1
2948
LM393N
4 Audio_Gnd
22u
-V
2947
3935 Vaudio-
47n
I914
100K
+Vaudio
Vaudio-
7902
TDA8925J
2960
22u
2942
1V6
-9V1 1
I915 100n
2
-2V7
4
-2V8
9
I921
3947
-8V8 15
Audio_Gnd
39K I919
I922
-9V1 17
16
7903
BC847B -2V8 -2V8 14
I945
-15V6
I918
2945
35V
2946
47n
6904
-V
Audio_Gnd
BZX384-C27
8
5
7 -9V1
6
7901-2
LM393N
4
-V
3941
I948
100K
AMP-ST-5W-NO.SAV-EU AMP-ST-10W-GL AMP-ST-5W-NO.SAV-ITV-EU AMP-ST-5W-ITV-GL
JMP JMP JMP JMP
--- --- ---
3 4
33
5 6 7
6906
I928
Vaudio+
Vaudio-
BAV99
+Vaudio
2961
I924 25V 47u I930
3960
5914
35V 100K -Vaudio
RES
9914
6905
2
1 3
P0102DA
Vaudio+
Vaux_GND
Φ
VDD1 VDD2
CLASS-D
AMPLIFIER
2952
6
10V7
SW1 BOOT1
4911
REL1 1u0
EN1 5911 5901
7 I934
OUT1
33u
3955
STAB I936 2955
3 -2V8
DIAG
POWERUP 680p
4R7
2953
I937
12 10V5
BOOT2 2954
SW2 1u0
680p
REL2
11 I938
EN2 OUT2
2971
VSS1 VSS2
3971
680p
I943
2970
4R7
Vaudio-
680p
470u
4912
Vaudio+
5912 5902
I939
33u
AMP-ST-5W-EU AMP-ST-10W-EU AMP-ST-5W-ITV-EU
JMP JMP
JMP
--- --- ---
---
5 6 7
8 9
3975
+9VB
*
* 9911 9913
1903
5913
Vaudio+
RES
Vaudio+1
VALUE MRT
9910
V_DG
7906
I942 I944
BC327-25
3965 6903
VT_Supply
10K
BAS316
I926
5910
I927
RES
4913
Vaux_GND
Vaudio-
9915
-V
4910
Audio_Gnd
Audio_Gnd
2984
Audio_Gnd
220n
Audio_Gnd
2980
220n
Audio_Gnd
5907 F904
I935
33u
Vaudio-
1902
5
Vaudio+
4
Audio_Gnd Audio_Gnd
3
F903
F905 2
Vaudio-
1
Audio_Gnd
Vaudio+
I946
I940 5908 3957
33u
39K
Audio_Gnd Audio_Gnd Audio_Gnd
4914 4916
4915 4917
Audio_Gnd
E_14480_121.eps
8 9
1222 F1 4911 C7
1902 C9 4912 D7
1903 A7 4913 B7
2928 A2 4914 F8
2929 E2 4915 F8
2930 A2 4916 F8
2931 A2 4917 F8
2932 B2 5901 C7
2933 B2 5902 D7
2934 B2 5907 C8
A
2935 E2 5908 D8
2936 D2 5910 B7
2937 E2 5911 C7
2938 F2 5912 D7
2939 E2 5913 A8
2942 C4 5914 B7
2945 D5 6901 D1
2946 D5 6903 A9
2947 B5 6904 D3
2948 B5 6905 B5
2949 A5 6906 A6
2950 A5 7901-1 B3
2951 A5 7901-2 E3
B
2952 C6 7902 B5
2953 C6 7903 D3
2954 D7 7904 C2
2955 C7 7906 A8
2957 C8 9910 A7
2958 C8 9911 A7
2960 B4 9913 A8
2961 A5 9914 B7
2963 B6 9915 B7
2970 D7 F901 C2
2971 D7 F903 D9
2972 E7 F904 C9
C
2973 E8 F905 D9
2974 E8 F910 F1
2977 A4 F911 F1
2978 B7 I909 A2
2979 B8 I910 A3
2980 C8 I911 B2
2981 E7 I913 B2
2982 C8 I914 B3
2983 E8 I915 C3
2984 C8 I916 A4
3930 A2 I918 D2
D 3931 A2 I919 C3
3932 B2 I920 C2
3933 B2 I921 C4
3934 B3 I922 D4
3935 B3 I924 A5
Vaudio+
3936 E2 I925 E2
3937 D2 I926 B8
3938 E2 I927 B8
3939 F2 I928 A5
3940 E3 I930 A6
3941 F3 I934 C6
3942 B4 I935 C7
E
3943 C4 I936 C7
3945 E9 I937 C6
3946 D2 I938 D6
3947 C3 I939 D7
3948 D2 I940 D7
3949 C3 I941 A3
3952 C6 I942 A8
3953 D6 I943 D7
3955 C7 I944 A9
3956 C8 I945 D4
3957 D9 I946 D9
3958 A5 I948 F3
3959 C3
F
3960 A5
3961 C3
3962 C2
3964 A8
3965 A8
3971 D7
3972 E8
3973 A3
3974 C4
100504 3975 A7
4910 B9