Philips MDV434/55/77 Service Manual page 35

1
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4 AUDIO FILTER & OUT PUT
+12V
Q23
9012 D11
2 3
R188 0 1N4148
DV33
D10
R189 0(OPEN)
R190 1N4148
22k
A
+ CE44
100uF/16V
VCC
D13
D12
2 3
1N4148 Q24
CE34 9012 1N4148
+
R192 470uF/16V
3.3k
D14
2 3 A_MUTE
DV33
R193 330 Q25 1N4148
9012
D15
MUTE_DAC D16
MUTE_DAC
R194 10K 1N4148 1N4148
VCC
Q26 9012H
MUTE_L
B
R143
R141
1K R142 100K
MUTE1 OPEN
-12V
Q27 9012H MUTE_R
R145
100k
R144
1K R140
MUTE2
NC(4.7k)
R146
-12V
NC(4.7k)
mute circuit
U14
ASDAT0 SDAT0
5 4 1 10
ASDAT0 SDIN AOUTR
ABCK SBCLK
6 3 2 9
C ABCK DEM_/SCLK VA
ALRCK SLRCK
7 2 3 8
ALRCK LRCK GND
ACLK 8 1 R182 33 SACLK 4 7
ACLK MCLK AOUTL
5 6
VQ FILT
RN4 33x4
CS4344
R148 33
SMCLK
+
CE37 C139
C138 3.3u 0.1u
22P
U15
MUTE1
SACLK 1 16
MCLK DZFL
SBCLK MUTE2
2 15
BICK DZFR
SDAT0 VCC_AUDIO
3 14
SDTI VDD
SLRCK
4 13
LRCK VSS
RESET# 5 12 LOUT+
PDN AOUTL+
ML 6 11 LOUT-
ML CSN AOUTL-
MC ROUT+
7 10
MC CCLK AOUTR+
MD ROUT-
8 9
MD CDTI AOUTR-
AK4382
R25
D
R26
U16
SDAT0 C113
1 20
SDIN VL
VCC3_AUDIO SBCLK MUTE1
2 19
SCLK /AMUTEC
SLRCK FL
3 18
LRCK AOUTA
SACLK
4 17 C114
MCLK VA_H
R24 1
5 16
VD GND
FR
6 15
GND AOUTB
MC MUTE2
7 14
DIF1(SCL/CCLK) /BMUTEC
MD
8 13
DIF0(SDA/CDIN) VQ
C54 9 12
DEM(AD0//CS) VBIAS
0.1u RESET#
10 11
RST/ VA
CE47
CS4351
C119
0.1u
E
1
8-5
2 3
R153
30k(5.1k)
C115
R150
AL
AL
CE40
10k(NC) R152
R154
DAC_ML LOUT+
2
3.3K(470)
10k 3
3.3uF/16V
R151
C116
10k(NC)
R155 C124
2700pF NC(470)
0(680p)
LOUT-
R156 C117 R157
4.7k/1% 3300pF 5.1K/1%
R168
30k(5.1k)
C121
R166
AR
AR
10k(NC) CE45 R167
R169
DAC_MR ROUT- 6
3.3K(470)
10k
5
3.3uF/16V
R170
10k(NC)
C122
C123 R184
2700pF NC(470) 0 (680p)
ROUT+
R172 C145 R173
4.7k/1% 3300pF 5.1K/1%
DAC_MR
VCC3_AUDIO
DAC_ML
VCC3_AUDIO
+
C140 CE38 C141 L26
0.1u 10u 0.1u
FB / 0805
1 8
SACLK
2 7
SBCLK
VCC_AUDIO
3 6
SDO
4 5
SLRCK
RN5 33x4
C142
0.1u
VCC3_AUDIO
10 +12VA
1
0.1u
0.1u
33u
+
C120
0.1u
CE48
3.3u
2 3
4
680PF
-12VA
R160
470
U11A R159
CE41 470
FL
1
10uF/16V
NJM4558 OPA
C118
+12VA R161
10k
1000pF
MUTE_L Q29
9014
2N3904S
R165
470
680PF
-12VA
R177
470
U11B R176
CE42
470
FR
7
10uF/16V
C146
NJM4558 OPA
R175
1000pF
+12VA 10k
MUTE_R Q31
9014
2N3904S
R181
470
CE43
10u
+ R187
R186 R62 CE9 10u 91
U13
R185 4.7 100K MIC
10K 1 16
M0 M1
2 15
MCLK FILT+
3 14
VL REF-GND
R76 100K
4 13
SDOUT VA
5 12
GND AINR
6 11
VD VQ
7 10
SCLK AINL
8 9
LRCK RST/
CS5340
C129 C130 RESET#
RESET#
C132 C133 C134 C135 C136 C137
0.1u 0.1u 2200p 1u,0805 0.1u 0.1u 1u,0805
C96
R137 R138
ASPDIF COAX
ASPDIF
100
75
0.1uF C98
C97 R139
100pF
110
100pF
4
8-5
5
R62 D4
R76 D4
R24 D1
R25 D2
R26 D2
R137 D3
A-L
R138 D4
M-L
R139 D4
R140 B1
R141 B1
R142 B1
R143 B2
R144 B1
R145 B2
R148 C1
CN10
R150 A2
1
2
COAX
R151 A2
3
M-L
4
M-R R152 A3
5
R153 A3
AUDIO OUT R154 A3
R155 A3
R156 A3
R157 A3
A-R
R159 A4
M-R
R160 A4
R161 A4
R165 A4
R166 B2
R167 B3
R168 B3
R169 B3
R170 B3
R172 B2
R173 B3
R175 B4
R176 B4
R177 B4
R181 B4
R184 B3
R185 C3
R186 C4
R187 D4
R188 A1
R189 A1
R190 A1
R192 A1
R193 B1
R194 B1
MIC
RN4 C1
RN5 D3
L26 C3
U11 A3
U13 D4
0.1u
U14 C2
U15 C1
U16 D1
5
6
D10 A1
D11 A2
D12 A1
D13 A2
D14 A1
D15 B2
D16 B2
A
Q23 A1
Q24 A2
Q25 B1
Q26 B1
Q27 B1
Q29 B4
Q31 B4
C54 D1
C96 D3
C97 D4
C98 D4
C113 D2
C114 D2
C115 A3
C116 A3
C117 A3 B
C118 A4
C119 D2
C120 D2
C121 B3
C122 B3
C123 B3
C124 A3
C129 D3
C130 D4
C132 D4
C133 D4
C134 D4
C135 D4
C136 D4
C137 D5
C138 C1
C139 C1
C
C140 C2
C141 C2
C142 D2
C145 B3
C146 B4
CE9 C4
CE37 C1
CE38 C2
CE40 A2
CE41 A3
CE42 B3
CE43 C4
CE45 B2
CE47 D2
CE48 D2
CN10 B5 D
E
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