Tv Board: Audio Amplifier (23") (Diagram A9B) - Philips LC03E Service Manual

Circuit Diagrams and PWB Layouts
TV Board: Audio Amplifier 2x5 Watts (23")
1 2
AUDIO AMPLIFIER 2x5 Watts
A9b
(23")
FOR ITV
1232
A11 LED_IN 1
IR_IN 2
A11
STBY-LED 3
A11
A
A11 STATUS 4
5
IR_OUT 6
A11
HMLINK
1702
1 4
2 5
3 6
SPPH4
B
A8 AUD_SW
A8 AUDIO-L
C
A8 AUDIO-R
D
7732-A
74LCV08AD
A1 SOUND-ENABLE 1
5V3
2
2V3
A10 POWER-DOWN
7732-B
A1 STAND-BY 74LCV08AD
4
F755
5
E
3V5
7732-C
74LCV08AD
2V3 9
10
2V9
7732-D
74LCV08AD
F
2V3 12
13
2V9
QUAD 2-INPUT AND GATE
1 2
LC03E
3 4
1733
YKC21-3416
3
2
6731
BZX284-C6V8
6732
BZX284-C6V8
2735 7731
AN5277
RES
3735 2736
1u0
18K
3736
F735 2737
3K3 3n3
2740
RES
F740 RIPPLE
2741
3740
FILTER
18K 1u0
3741 2742
3K3 3n3
+3V5
2799
100u 50V
+3V5
3747
4K7
3V5
14
3748
3
8K2
3739
3V5
7739
BC847B
1K0
7
3799
14
220K
6 3733
RES
7
12-24DC-SUP_1
+3V5
14
8
3V5
3744
4K7
3746
7
7744
BC847BW
0V 1K0
14
F743
3743
11
3V5
1K0 0V7
2746
1u0 50V
7
3 4
7. 47
5 6
1
ATT.
ATT.
CON
*
4740
2738
330u 50V
2739
330u 50V
2747
33n
2743
2744
1n5 1n5
F745
2745 2796
100u 25V 1n0
F732 +3V5
2797
2732
10u 50V 1n0
3758
4K7
3757
3V5
10K
3756 2755
1u0
3755
RES
100R
3745
4K7
7756
BC847B
7745
BC847BW
5 6
7 8 9
6
5
4
2
3750 470R
2759
1n0 3
7
2760 8
1750
*
1n0
9
1
3752 470R
HEADPHONE
* 1752
2751 2753
470p 470p
1734
3
*
4738
2
1
1732
F738
4
F737
3
F736
GNDEARTH
2
* F739
4739
1
*
1750 3750 3752 4737 4738 4739 4740
MTV X YES YES X X X YES
ITV YES X X YES YES YES
12-24DC-SUP_1
5733
22u GNDEARTH GNDHOT
F731
2798 2734
220n 1m0 35V
3760
4K7
6755
3759
0V
F759
1K0
BAS316
3761
1K0
HP-SIDE-DET A1
A8
OUT_MUTE
CL 36532054_004.eps
7 8 9
1232 A1 F736 C8
1702 A2 F737 C8
1730 B3 F738 C8
1731 A9 F739 C8
1732 C9 F740 C2
1733 A4 F743 F3
1734 B9 F745 D5
1750 A7 F755 E2
1731
1752 B7 F759 E8
2732 E5
2734 E7
2735 B3
2736 B4
A
2737 C4
2738 D6
2739 D6
2740 C3
2741 C4
2742 C4
2743 D6
2744 D6
2745 D5
2746 F3
2747 D5
B 2751 B8
2753 B8
2755 E6
2759 A8
2760 A9
2796 D6
2797 E6
2798 E7
2799 D5
3733 E5
3735 B3
3736 C3
C
3739 D3
3740 C3
3741 C3
3743 F3
3744 F4
3745 E5
3746 F4
3747 D4
X
3748 D4
3750 A7
3752 A7
3755 E6
D
3756 E6
3757 E6
3758 E7
3759 E7
3760 E8
3761 F8
3799 E4
4738 B7
4739 C7
4740 C7
5733 D7
E 6731 B3
6732 B3
6755 E7
7731 B4
7732-A D2
7732-B E2
7732-C E2
7732-D F2
7739 D4
7744 F3
7745 F5
7756 F7
F
F731 D7
F732 E5
F735 C2
110903