Philips PET740 Service Manual page 19

8.0 ELECTRICAL DIAGRAM
MAIN BOARD CIRCUIT DIAGRAM (AUDIO)
C114 C114
R63 R63 3.3K 3.3K
AOUT_R
47U/6V 47U/6V
R96 R96
100K 100K
C115 C115
R64 R64 3.3K 3.3K
AOUT_L
47U/6V 47U/6V
R97 R97
100K 100K
SPR-
SPR-
AUDIO5V
C170 C170 1U 1U
ROUT C87 C87 1U 1U
C137 C137 1U 1U
AUDIO5V
C142 C142 1U 1U
LOUT C150 C150 1U 1U
C167 C167 1U 1U
AUDIO5V
+P5V SPL-
SPL-
R81 R81
10K 10K
D4 D4
1
1SS355 1SS355
R80 R80 47K 47K VD18 VD18
1
TFTON
DTC124 DTC124
C102 C102
10U/10V 10U/10V
R67 R67 10K 10K
C118 C118 100P 100P
U22A U22A
BA4558 BA4558
R65 R65 3.9K 3.9K
2
C120 C120
1
3
C116 C116 R94 R94
1000P 1000P
10K 10K
C81 C81
10U/10V 10U/10V
R68 R68 10K 10K
C119 C119 100P 100P
BA4558 BA4558
R66 R66 3.9K 3.9K U22B U22B
6
C121 C121
7
5
C117 C117 R95 R95
1000P 1000P
10K 10K
C79 C79
10U/10V 10U/10V
SPR+
R82 R82
U23 U23
SPR+ C127 C127
1 24
PGND ROUT+
R74 R74
2 23
ROUT- SE/BTL
3 22
PVDD HP/LINE
4 21
RHPIN VOLUME
R99 R99 150K 150K
5 20
RLINEIN SEDIFF
R98 R98 10K 10K
6 19
RIN SEMAX
7 18
VDD AGND
C171 C171 1U 1U
8 17
LIN BYPASS
9 16
LLINEIN FADE
10 15
SHUTDOWN#
LHPIN SHUTDOWN
SPL+ C128 C128
11 14
PVDD LOUT+
12 13
LOUT- PGND
25
GND
TPA6011A4 TPA6011A4
MODECON2
2
47U/6V 47U/6V R69 R69 100 100 R113 R113 1K 1K ROUT
R130 R130
R93 R93 4R7 4R7
47K 47K
-5V
C82 C82
0.1U 0.1U
47U/6V 47U/6V R70 R70 100 100 R129 R129 1K 1K LOUT
R132 R132
R92 R92 4R7 4R7
10K 10K
+P5V
C80 C80
0.1U 0.1U
10K 10K MODECON2
220U/6V 220U/6V R78 R78 10 10 L17 L17 601 601 HPROUT
100K 100K MODECON1
R79 R79
R75 R75 100K 100K
1K 1K
+P5V
R111 R111 510K 510K
VOL_PWM
+P5V +P5V
R72 R72
1K 1K
R73 R73
1K 1K
220U/6V 220U/6V R76 R76 10 10 L18 L18 601 601 HPLOUT
SPL+
R77 R77
1K 1K
VD23 VD23
R100 R100 1K 1K
1
AUDIO_MUTE
2SD601 2SD601
HPROUT
VD24 VD24
R101 R101 1K 1K
1
2SD601 2SD601
HPLOUT
HPROUT
MODECON1
HPLOUT
AUDIO5V
AUDIO5V
C125 C125 C108 C108 C109 C109
0.1U 0.1U 0.1U 0.1U 0.1U 0.1U
R110 R110 ESD ESD
R134 R134 ESD ESD
JS2 JS2
5
4
3
6
2
1
HP HP
JS3 JS3
5
4
3
6
2
1
HP HP