Philips 42PF9731D Service Manual page 88

Circuit Diagrams and PWB Layouts
SSB: MPIF Main: Audio
1 2 3
MPIF MAIN: AUDIO AMPLIFIER
B3E
A-PLOP
A
IK51 3A51
680K
B
ADAC7
C
ADAC8
D
+12VSW
+12VSW
IK90
IK89
E
RES
IK91
2AA5
ADAC4 7A14-1
BC847BPN
220n
RES
F
IK95
9A90
RES
+12VSW
7A05-3
LM324
IK70 4
ADAC2 10
3AA1
8
9
220R
11
G
2A89
IK98
33p
3A26 3A27 3A40
18K IK48 47K 1K0
9A81
RES
+12VSW
H
7A05-4
LM324
4
IK72
ADAC1 12
3AA2
14
13
220R
11
I 2A90
IK99
33p
3A24 3A25 3A39
IK47
18K 47K 1K0
9A80
RES
3104 313 6145.2
1 2 3
BJ2.4U/BJ2.5U LA
4 5 6
+5V2-STBY +5V2-STBY
7A08-2
BC847BPN
4 +5V-AUD +5V
IK53 IK54
3A53
7A08-1
BC847BPN 6 5
10K
4V6
IK52
2 3
IK68
3
0V6
1
IK67
2
IK69 2A99
2A88 RES
3A38
9A82
100n
220K
3A22 3A23
15K IK50
+12VSW
IK31
RES
BC847BPN
7A14-2
AUDIO-SW +12VSW
2AB3
7A05-2
LM324
VREF-AUD
1n0 4
5
RES IK77 IK78
3A46
7
IK97
6
1K0
3A84
11
1K0
IK92
RES
+12VSW
7A05-1
LM324
4
3
1
2
IK71
AUDIO-R
11
IK73
AUDIO-L
4 5 6
7. 88
7 8 9
3A87
10K
3A55 2A20 3A60
7A04-1
100K 33R
TS482IST 16V 100u
7A09
FK02
FK00
BC807-25W 2AA0 3A61
IK62
1
IK46
33R
16V 100u
IK64
+5V2-STBY
33p
IK63
5V3
4
IK65
IK55 3A64
BC847BPN
2V2 6
7A10-2 5
IK96
10K FK07
3A63
2 +5V-AUD
7A10-1
27K
BC847BPN 3
0V 10K
FK06 1
3A65 IK66
0V +5V
220K 0V
IK86
7A04-2
TS482IST
2A85
5
100n IK87
6
2A98
IK88
+12VSW
33p
RES
3A37
9A83
220K
IK35
3A20 3A21
IK49
11V7 15K 27K
+12VSW
4
IK36
3A93
BC847BPN
7A18-2
7A07 5
10K 11V7
BC817-25W
3
FK03 0V3
+8V-AUD
3V0
6
2 7A18-1
BC847BPN
+8V6-SW
0V
1
IK79
IK02
IK74 IK75
3A41
7A06
BC817-25W +3V3
1K0 FK01
+5V-AUD
IK76
FK18
IK57
7A13-1
74HCU04PW
2A23
SPI-1 1
1n0
9A88
RES
7A13-5
74HCU04PW
IK44
SPDIF-OUT1 9A89 11
IK45
7A13-3
74HCU04PW
5
7 8 9
10 11 12 13
+5V2-STBY
IK30
BC857BW
7A15
IK32
IK33
3A88
7A16-1
BC847BS
1K0
2A21
3A66 3A67
100K 16V 100u 33R
FK11
BC807-25W 2AA2
FK09 IK80 3A68
7A11
16V 100u 33R
IK85
7A16-2
BC847BS
IK81
7 +5V2-STBY
IK82
5V3
4
FK17 IK56 3A75
BC847BPN
6
2V2
7A12-2 5
IK05
3A74 10K
7A12-1 2
BC847BPN 3
0V 10K
IK83
1
3A76 IK84
0V
220K 0V
PROT-AUDIOSUPPLY
3A78
22K
7A13-2
74HCU04PW
IK59
3A86
1 2 3 1 4
68R
7A13-6
74HCU04PW
FK19
2A24 3A16
1 10 13 1 12
IK60 100n IK58 220R
7A13-4
74HCU04PW
1 6 9 1 8
10 11 12 13
14
2A20 A8 6A00 C8
2A21 C12 6A01 E11
B3E
2A22 G8 6A02 A3
2A23 H9 7A04-1 A7
2A24 I12 7A04-2 C9
2A32 B7 7A05-1 F6
2A79 G8 7A05-2 E5
2A81 F7 7A05-3 F2
2A83 E9 7A05-4 H2
A 2A84 B6 7A06 G8
2A85 D9 7A07 E7
2A86 C9 7A08-1 A4
2A87 B6 7A08-2 A5
2A88 B5 7A09 A8
2A89 G3 7A10-1 C8
2A90 I3 7A10-2 B9
2A91 B3 7A11 C11
AUDIO-HDPH-L-AP
2A93 C10 7A12-1 D11
2A96 H3 7A12-2 D12
2A98 D10 7A13-1 H10
2A99 B7 7A13-2 H12
B
2AA0 B8 7A13-3 I10
2AA1 D10 7A13-4 I12
2AA2 C12 7A13-5 H10
2AA3 G9 7A13-6 H11
2AA4 G9 7A14-1 E3
2AA5 E2 7A14-2 E4
2AA6 E3 7A15 A11
2AB1 G7 7A16-1 B10
2AB2 E6 7A16-2 C13
2AB3 E4 7A18-1 F9
2AB7 F8 7A18-2 E8
3A14 F2 9A80 I3
C
3A15 H9 9A81 H3
3A16 I13 9A82 B6
AUDIO-HDPH-R-AP
3A17 I13 9A83 D9
3A20 E9 9A86 D4
3A21 E10 9A88 H10
3A22 B6 9A89 I9
3A23 B7 9A90 F3
3A89
3A24 I2 FK00 B7
1K0
3A25 I3 FK01 G8
3A26 G2 FK02 B9
3A27 G3 FK03 E7
D 3A28 B3 FK06 C7
3A29 D10 FK07 C9
3A30 B7 FK09 C10
3A31 A5 FK11 C12
3A32 B5 FK17 D11
3A33 B5 FK18 G9
3A34 C9 FK19 I13
3A35 C9 IK02 F8
3A36 D9 IK05 D11
3A37 D10 IK30 A10
3A38 B7 IK31 D4
3A39 I3 IK32 A11
E
3A40 G3 IK33 B11
3A41 F7 IK35 E7
3A42 G7 IK36 E8
3A43 G8 IK44 I9
3A44 G8 IK45 I10
3A45 G8 IK46 B9
3A46 E6 IK47 I3
3A47 E6 IK48 G3
3A48 F7 IK49 E10
3A49 F7 IK50 C6
3A50 F7 IK51 A3
3A51 A3 IK52 A3
F
3A52 A4 IK53 A4
3A53 A4 IK54 A4
3A54 B5 IK55 B9
3A55 A8 IK56 D12
3A56 B7 IK57 G9
3A57 B8 IK58 I12
3A58 B8 IK59 H11
3A59 B8 IK60 I12
3A60 A9 IK62 B8
3A61 B9 IK63 B7
3A62 B9 IK64 B8
G
3A63 C8 IK65 B8
3A64 B9 IK66 C8
3A65 C8 IK67 B6
3A66 C11 IK68 A6
3A67 C12 IK69 B6
3A68 C12 IK70 G2
3A69 C12 IK71 G4
3A70 C11 IK72 H2
3A71 D11 IK73 H4
SPDIF-IN1
3A72 D11 IK74 F7
3A73 D10 IK75 F7
3A74 D11 IK76 G7
H
3A75 D12 IK77 E6
3A76 D11 IK78 E7
3A77 G9 IK79 F7
3A78 G10 IK80 C11
3A79 H11 IK81 C11
3A80 E2 IK82 D11
3A81 E2 IK83 D10
SPI-OUT
3A82 F2 IK84 D12
3A83 D3 IK85 C12
3A84 E4 IK86 C9
3A85 F3 IK87 D9
3A86 H12 IK88 D9
I
3A87 A10 IK89 E3
3A88 B11 IK90 E3
3A89 D13 IK91 E2
3A90 F8 IK92 F3
3A91 F8 IK95 F2
3A92 E7 IK96 C8
3A93 E8 IK97 E4
3A94 F8 IK98 G3
G_15930_028.eps
3A95 D7 IK99 I3
120606
3A96 F8
3AA1 G3
14
3AA2 H3