Philips PET831 Service Manual page 35

5
+5V_AUD
D
C230 TC18 TC17
0.1U/25V/0603 100U/6.3V/B 100U/6.3V/B
C
(12) DAC-RIN
(12) DAC-LIN
B
R29
4.7K/J/0603
+5V_SYS
+5V_SYS
TP6
NC
TC1 R5
47U/10V/B 10K/J/0603
R24
100/J/0603
Q4
B
D5 PMBS3904
A
R23 1N4148
1M/F/0603 C5
NC
5
4
C229 C228
0.1U/25V/0603 0.1U/25V/0603
SPK_R-
+5V_AUD
C54 1U/16V/0603 RHPIN
R449 0/J/0603 C55 1U/16V/0603 RLINEIN
C325 1U/16V/0603
+5V_AUD
C326 1U/16V/0603
R450 0/J/0603 C56 1U/16V/0603 LLINEIN
C57 1U/16V/0603 LHPIN
+5V_AUD
SPK_L-
Q46
PMBS3906
HP_MUTE
E C
R27
1K/J/0603
SYS_MUTE
SYS_MUTE (12)
D2
1N4148
IO_MUTE
A K
IO_MUTE (25)
L:MUTE F/W control
H:ACTIVE
Audio Mute
4
3
EC1
220U/6.3V/6.3*5.8
H:MUTE
L:ACTIVE
HP_MUTE
R35
10K/F/0603
U7
TPA6011A4
1 24
PGND1 ROUT+
2 23
ROUT- SE/BTL
R56
3 22
PVDD1 HP/ LINE
4 21
RHPIN VOLUME
Headphone and speaker difference
5 20
RLINEIN SEDIFF
Headphone max volume
6 19
RIN SEMAX
(500ms Fade On)
7 18
VDD AGND
C39 1U/16V/0603
8 17
LIN BYPASS
9 16
LLINEIN FADE
10 15
LHPIN SHOTDOWN
11 14
PVDD2 LOUT+
12 13
LOUT- PGND2
Default Output
3
2
6011HP_ROUT
D6 R34
MA2J728 1K/J/0603
Q9
A K 2 1 B
2SD1328
+5V_AUD
D8
BAV70-F
K
HP1_DET (3)
R55 100K/F/0603
J
A
HP2_DET (3)
0/J/0603 AVIN_SW
AVIN_SW (25)
VOLUME (14)
R57 100K/F/0603
R58 100K/F/0603
+5V_AUD
R419 NC
SYS_MUTE
L:MUTE
H:ACTIVE
EC2
220U/6.3V/6.3*5.8
6011HP_LOUT
D7 R51
MA2J728 1K/J/0603
HP_MUTE
Q10
A K 2 1 B
H:MUTE 2SD1328
L:ACTIVE
R49
10K/F/0603
Title
AUDIO STEREO AMPLIFER
Size Document Number
B
Date: Thursday, December 13, 2007
2
1
HP_R_OUT (3)
J5 LM312-004-TF1-3
4P/2.0/RA/WAFER
SPKR+ SPK_R+
1
TP169
SPKR- SPK_R-
2
TP170
SPKL+ SPK_L+
3
TP171
SPKL- SPK_L-
4
TP172
HP_L_OUT (3)
Rev
C
WDR831
Sheet 11 of 27
1
D
C
B
A