Philips PET836, Service Manual

Page: 25 / 55

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
A_MUTE_A
AOUT_FL
AOUT_FR
+Vcc
SPR_R-
SPR_R+
SPR_L+
M
AOUT_FR
AOUT_FL
AVIN_L
AVIN_R
A_OUT_L
A_OUT_R
VOL_CONTROL
AV IN_SW
AMP_MUTE
HP_DET2
HP_DET1
HP_L_OUT
A_OUT_R
A_OUT_L
+Vcc
HP_DET1
HP_DET2
HP_DET
SPR_L-
VOL_CONTROL
MR_OUT
SPR_L+
HP_R_OUT
ML_OUT
ML_OUT
AVIN_R
AMP_MUTE
MR_OUT
HP_L_OUT
SPR_R-
AMP_MUTE
HP_DET
AV IN_SW
HP_R_OUT
AVIN_L
SPR_L-
A_MUTE_A
A_MUTE
A_MUTE
SPR_R+
DVCC3
VCC5
GND
GND
GND
GND
GND
GND
GND
GND
-5V
-5V
+5V_AMP
+5V_AMP
DVCC3 DVCC3
+5V_AMP
+5V_AMP
+5V_AMP
+5V_AMP
+5V_AMP
CORE3.3V
AUDIO_MUTE2 2
AOUT_FL 2
AOUT_FR 2
AVIN_R 5
AVIN_L 5
A_OUT_R 5
A_OUT_L 5
VOL_CONTROL 8
AV IN_SW 8
AMP_MUTE 4
AUDIO_MUTE 8
Power ON / OFF Mute
E 3 1 B
2
2N3906
E
2 C
3 B
C
1
2N3904
CIRCUIT DIAGRAM- MAIN BOARD_AUDIO
D18
1N4148
D18
1N4148
1 2
C82
10P C82
10P
+
EC28 10uF/16V
+
EC28 10uF/16V
+
EC32
100uF/6.3V
+
EC32
100uF/6.3V
+
EC42 47uF/16V
+
EC42 47uF/16V
R100
47K
R100
47K
R117
5.1K R117
5.1K
C70 100pF/0402 C70 100pF/0402
R106 10K R106 10K
C73
0.1uF/25V/0603
C73
0.1uF/25V/0603
C60 1uF/0805 C60 1uF/0805
C77
0.1uF
C77
0.1uF
C74
0.1uF/25V/0603
C74
0.1uF/25V/0603
R208
10
R208
10
+
EC33
220uF/6.3V
+
EC33
220uF/6.3V
J13
MAIN EARPHONE
J13
MAIN EARPHONE
1
4
5
2
3
+
EC40 47uF/16V
+
EC40 47uF/16V
R111 100K/0402 R111 100K/0402
R110
100K R110
100K
R206
NC
R206
NC
R5
100K R5
100K R134 130 R134 130
47pF
C76
47pF
C76
R116 10K R116 10K
R207
10
R207
10
R113 100K R113 100K
R121
100K R121
100K
R132 4.7K R132 4.7K
+
EC43 47uF/16V
+
EC43 47uF/16V
R119 10K R119 10K
J7
To speaker
J7
To speaker
1
1
2
2
3
3
4
4
R225
10K
R225
10K
C79
10P C79
10P
C75
1000pF/0402
C75
1000pF/0402
R123
10R/0402
R123
10R/0402
R137 130 R137 130
R59 10K/0402 R59 10K/0402
D17
1N4148
D17
1N4148
1
2
+
-
U12B
NJM4558-SOP-8
+
-
U12B
NJM4558-SOP-8
5
6
7
8
4
R205
1.3k
R205
1.3k
C59 100pF/0402 C59 100pF/0402
R103 39K R103 39K
+
EC41 47uF/16V
+
EC41 47uF/16V
U13 TPA6011A4 U13 TPA6011A4
PGND1
1
ROUT-
2
PVDD2
3
RHPIN
4
RLINEIN
5
RIN
6
VDD
7
LIN
8
LLINEIN
9
LHPIN
10
LOUT-
12
PVDD1
11
PGND2
13
LOUT+
14
SHUN
15
FADE
16
AGND
18
SEMAX
19
SEDIFF
20
VOL
21
HP/LINE
22
SE/BTL
23
ROUT+
24
BYPASS
17
R115 39K R115 39K
R203
20K R203
20K
+
EC36
100uF/6.3V
+
EC36
100uF/6.3V
C66 1uF C66 1uF
R202
20K R202
20K
R78 1K/0402 R78 1K/0402
R200 360 R200 360
C64 1uF C64 1uF
R120
18K
R120
18K
R133
100K R133
100K
C68 1uF C68 1uF
R118
10K R118
10K
C81
10P C81
10P
R136 130 R136 130
+
EC34
22uF/25V
+
EC34
22uF/25V
R163 1K R163 1K
C71 1uF/0805 C71 1uF/0805
+
-
U12A
NJM4558-SOP-8
+
-
U12A
NJM4558-SOP-8
3
2
1
8
4
R127
22K/0402
R127
22K/0402
C67 1uF C67 1uF
R147
100K
R147
100K
EC27
220uF/16V
EC27
220uF/16V
C63 1uF C63 1uF
D21
BAT54C
D21
BAT54C
+
EC30 10uF/16V
+
EC30 10uF/16V
D16 1N4148 D16 1N4148
1 2
R7
100K R7
100K
R135 1K R135 1K
C80
10P C80
10P
J11
MAIN EARPHONE
J11
MAIN EARPHONE
1
4
5
2
3
Q19
2N3904
Q19
2N3904
D19 1N4148 D19 1N4148
1 2
R112
470 R112
470
R105
10K R105
10K
R122
470 R122
470
Q21
2N3904 Q21
2N3904
1
3
2
R109
18K
R109
18K
EC29
220uF/16V
EC29
220uF/16V
R107
5.1K R107
5.1K
47pF
C62
47pF
C62
Q17
2N3904
Q17
2N3904
C72
0.1uF/25V/0603
C72
0.1uF/25V/0603
R129
470
R129
470
C61
1000pF/0402
C61
1000pF/0402
Q18
3906
Q18
3906
C69 1uF C69 1uF
R114
100K
R114
100K
R108 10k R108 10k
C65 1uF C65 1uF
Q22
2N3906 Q22
2N3906
3 2
1
Q16
2SC2011
Q16
2SC2011
Q15
2SC2011
Q15
2SC2011
L21 FB600R L21 FB600R
R131 0 R131 0
R201 360 R201 360
R162
4.7K
R162
4.7K
+
EC31
100uF/6.3V
+
EC31
100uF/6.3V
R130 130 R130 130