Ssb: Audio Class-D - Philips LC8.2HA LA Service Manual

Circuit Diagrams and PWB Layouts

SSB: Audio Class-D

1A02 B1 5 2A10 C9 2A17 C12 2A24 D8 2A31 E11 2A38 E12
1A35 C15 2A11 C7 2A18 C10 2A25 D10 2A32 E8 2A40 E8
2A01 A5 2A12 C8 2A19 D8 2A26 D12 2A33 F9 2A41 E14
2A02 A1 0 2A13 C12 2A20 D7 2A27 D10 2A34 F9 2A45 C12
2A04 A5 2A14 C12 2A21 C11 2A28 D12 2A35 D11 2A51 B3
2A08 B1 0 2A15 C7 2A22 D8 2A29 D8 2A36 E11 2A52 B2
2A09 C9 2A16 C7 2A23 D12 2A30 E10 2A37 C13 2A53 B4
1 2 3
AUDIO - CLASS D
B05B
+12V_AUDIO
A
RES
2A66
100n
GNDSND
GNDSND
2A51
3A51
B
IA21 2A52 IA22 3A53 IA20
HP_AUDIO_OUT_L HPIC_LIN
2V6
2
47K
470n
F901 2V6
3
2A55
3A55
C
3A56
100K
IA33 2A57 IA34
HP_AUDIO_OUT_R 3A58 F904
HPIC_RIN 2V6
6
47K
470n
2V6
5
2A59
3A60
470n 100K
D
MUTING CIRCUIT
+3V3_STBY
IA54
3A61
ANTI_PLOP
3V3 IA57
4K7
0V
7A52
BC857BW
E
+3V3_STBY
3A62
4K7
POWER_DOWN IA67
IA69 2A61 IA68
3A63
IA70
6A51
1u0 4K7
BAS316
F
7A53
0V
BC857BW
RESERVED
+3V3_STBY
MUTEn 0V
G
3139 123 6349.1
1 2 3
LC8.2HA LA
2A54 C4 2A61 F2 2A68 A3 3A03 C7 3A11 D7 3A28 E13 3A52 B5
2A55 C3 2A62 A4 2A69 A7 3A04 C8 3A13 D8 3A29 D14 3A53 B2
2A56 C4 2A63 A4 2A70 A7 3A05 C13 3A14 E12 3A30 D14 3A54 B5
2A57 C2 2A64 A8 2A71 D13 3A06 C7 3A17 D11 3A31 E15 3A55 C3
2A58 C4 2A65 A9 2A72 D13 3A07 C7 3A19 E7 3A32 D7 3A56 C3
2A59 D2 2A66 A2 3A01 A5 3A08 D8 3A26 E8 3A33 E7 3A57 C5
2A60 E1 2A67 A3 3A02 A9 3A09 C11 3A27 E13 3A51 B3 3A58 C2
4 5 6
IA10
5A07 IA13
3A01 10R 11V9
VDDA -12V_AUDIO
22u
2A01
100n
GNDSND
IA15
5A05 30R 12V2
VDD
GNDSND GNDSND
2A04
220u
25V
IA17
33p
GNDSND
120K
RES
IA18 IA19
3A52
HP_LOUT
7A51-1 33R
TS482IDT 2A53 3A54
HPIC_LOUT
+5V_SW
1
2V6 33R
6.3V 47u
2A54
5V3
220n
IA25
33p
IA26
120K
2A56
3A03
220n
RES AUDIO_LS_L
IA30
3A57
HP_ROUT
IA31
FA05
7A51-2
33R
TS482IDT
2A58 3A59
3A06
HPIC_ROUT
FA06
7 3A07
2V6 33R
6.3V 47u
5V3
3A11
AUDIO_LS_R
FA09
3
IA48
3A68
1
7A54
BC847BW
1K0
2
FA12
ENGAGE
FA13
RES 3A19
3 STANDBYn
IA59 10K
3A69
1 7A55
BC847BW
1K0
2
IA63
3 SC1_AUDIO_MUTE_R
IA64
3A71
1 7A56
BC847BW
1K0
2
IA65
3 SC1_AUDIO_MUTE_L
IA66
3A72
1 7A57
BC847BW
1K0
2
IA71
SC2_AUDIO_MUTE_R
3
IA72
3A73
1
7A58
BC847BW
1K0
2
IA73
SC2_AUDIO_MUTE_L
3
IA74
3A74
1
7A59
BC847BW
1K0
2
ENGAGE
*
IA75 IA76
3A76 3A03
7A60
3A04
BC847BW
10K
3A06
3A07
3A77
3A08
22K
3A11
4 5 6
10. EN 65
3A59 C5 3A70 E3 3A77 G4 5A08 A8 7A51-1 B3 7A57 F4
3A60 D3 3A71 E4 4A51 E3 6A51 F3 7A51-2 C3 7A58 F4
3A61 E2 3A72 F4 5A03 C11 6A52 G3 7A52 E2 7A59 G4
3A62 E2 3A73 F4 5A04 D11 7A01 C9 7A53 F2 7A60 G4
3A63 F2 3A74 G4 5A05 A5 7A05 D15 7A54 D4 F901 B3
3A68 D4 3A75 G3 5A06 A9 7A06 E14 7A55 E4 F904 C3
3A69 E4 3A76 G4 5A07 A4 7A07 E14 7A56 E4 FA04 D10
7 8 9 10
IA11 IA12
5A08 IA14
2 1 3A02 10R
22u
2A02
100n
GNDSND
IA16
5A06 30R
GNDSND GNDSND GNDSND
2A08
220u
25V
GNDSND
VDDA VDD
7A01 GNDSND GNDSND
IA27 IA28 TDA8932BTW
2A11 1u0
VDDA
Φ
VDDP
3A04 2 27
2A12 IA32
IN1P CLASS D OUT1
220p -2V8
IA35
IA36 POWER
2A15 1u0 3 22 IA37
IN1N OUT2
AMPLIFIER
2A16 1u0 IA38 -2V8
15 4 2V6 FA04
IA40 2A19 IN2P DIAG
3A08 -2V8
220p
14 30
IA41
IA42 IN2N HVP1
2A20 1u0 -2V8
2A22 100n IA43 12 19
INREF HVP2 GNDSND
2A24 100n -7V6
3A13 39K IA44 10 28 8V9
VSSA
OSCREF BOOT1
IA45
VDDA 31 21 3V9
NC OSCIO BOOT2
IA46
IA47
GNDSND 11 25
HVPREF STAB1
-8V2
IA50
2A29 100n 18 24 -1V3
VSSA
DREF STAB2
4V7
IA51
3A26 4K7
5
ENGAGE
3V2
IA56
6 2A30
POWERUP
-2V6 100n
IA60
13
TEST
EMC
VSSP VSSD|HW
2A32 CGND VSSA
1n0
VSSA
VSS
GNDSND
GNDSND
LCD PDP
10K 6K8
12K 22K
10K 6K8
10K 6K8
12K 22K
10K 6K8
7 8 9 10
2009-Apr-10
FA05 C6 FA12 E6 IA14 A10 IA21 B1 IA28 C8 IA35 C7 IA42 D8
FA06 C6 FA13 E6 IA15 A5 IA22 B2 IA29 C11 IA36 C8 IA43 D8
FA07 C15 FA32 D15 IA16 A10 IA23 C13 IA30 C5 IA37 C10 IA44 D8
FA08 C15 IA10 A4 IA17 B4 IA24 C13 IA31 C4 IA38 C8 IA45 D10
FA09 D6 IA11 A8 IA18 B5 IA25 C4 IA32 C10 IA39 C11 IA46 D10
FA10 C15 IA12 A9 IA19 B5 IA26 C4 IA33 C1 IA40 D7 IA47 D10
FA11 C15 IA13 A5 IA20 B3 IA27 C7 IA34 C2 IA41 D7 IA48 D4
11 12 13
-12V2
VSSA
-12V2
VSS
5A03
IA23
22u 2A13 2A37 IA24 3A05
22R
220n 220n
3A09
GNDSND
10R
2A14
2A17
470n 1n0
IA29
2A21
1n0
EMC 2A18 2A45
IA39
GNDSND
1n0
1n0
2A35
1n0
2A28 2A23
470n 1n0
2A25 15n
GNDSND 5A04 GNDSND GNDSND
22u
2A27 15n
3A17
2A26
10R
220n
IA52
IA53
2A31
2A38
1n0
220n
3A27
220K
VSS IA62 IA61
3A28
2A36
3A14
220K
1n0
22R
GNDSND GNDSND
GNDSND
11 12 13
IA49 D14 IA56 E8 IA63 E5 IA70 F3
IA50 D8 IA57 E3 IA64 E4 IA71 F5
IA51 D8 IA58 E14 IA65 F5 IA72 F4
IA52 D12 IA59 E4 IA66 F4 IA73 F5
IA53 D11 IA60 E8 IA67 F2 IA74 G4
IA54 E2 IA61 E12 IA68 F2 IA75 G3
IA55 E14 IA62 E11 IA69 F1 IA76 G4
14 15
B05B
A
B
TO SUBWOOFER OUT
1A02
1
NC
2
3
RES
1735446-3
TO SPEAKERS
C
1A35
FA07
LEFT +
1
FA08
GND
2
FA10
3 GND
FA11
4 RIGHT -
1735446-4
VDD
D
7A05
BC857BW
IA49
DC_PROT
FA32
7A06 IA55
BC847BW
IA58
GNDSND
7A07
BC847BW
GNDSND
E
DC-DETECTION
F
G
I_17760_011.eps
180208
14 15