Philips FX20 Service Manual page 38

8-10
Circuit Diagram - Main board:FM/AUDIO
A
FB11 FB11 NC/500/500mA NC/500/500mA
FB12 FB12 NC/500/500mA NC/500/500mA
FB13 FB13 3.3 3.3
1
FB14 FB14 500/500mA 500/500mA
S
TUNER_SCL
9
TUNER_SCL
TUNER_SDA
9
TUNER_SDA
TUNER_SCL
TUNER_SDA
FM_R
FM_L
2
P1 P1
3 AUX_ROUT
2
1 AUX_LOUT
RCA2-3 RCA2-3
3PIN/2.0mm 3PIN/2.0mm
1 FB23 FB23 500/500mA 500/500mA MP3_R
1
2 FB25 FB25 500/500mA 500/500mA MP3_L
2
3 FB26 FB26 500/500mA 500/500mA
3
XS1 XS1
3
FM_L R160 R160 1K 1K C139 10uF/10V/Y5V C139 10uF/10V/Y5V
BT_L R162 R162 C140 10uF/10V/Y5V C140 10uF/10V/Y5V
2.7K 2.7K
5 BT_L
MP3_L R185 R185 6.8K 6.8K C154 10uF/10V/Y5V C154 10uF/10V/Y5V
AUX_LOUT R165 R165 22K 22K C142 10uF/10V/Y5V C142 10uF/10V/Y5V
FM_R R168 R168 1K 1K C144 10uF/10V/Y5V C144 10uF/10V/Y5V
BT_R R169 R169 2.7K 2.7K C145 10uF/10V/Y5V C145 10uF/10V/Y5V
5 BT_R
MP3_R
R196 R196 6.8K 6.8K C155 10uF/10V/Y5V C155 10uF/10V/Y5V
AUX_ROUT R171 R171 22K 22K C146 10uF/10V/Y5V C146 10uF/10V/Y5V
4052_SWA R180 R180 33 33
5 4052_SWA
4052_SWB R181 R181 33 33
5 4052_SWB
4.7K 4.7K 4.7K 4.7K
R182 R182 R183 R183
DVCC3 DVCC3
4
A
B
FM
D6 D6
200pF/50V/NP0 200pF/50V/NP0
NC/ESD_8KV NC/ESD_8KV
XP35 XP35
C283 C283
2
C263 C263 0.047uF/10V/X7R 0.047uF/10V/X7R
2 FB21 FB21
1 33pF/50V/NP0 33pF/50V/NP0
4.7nH 4.7nH
1
2PIN-2.5mm 2PIN-2.5mm
C278 1UF/16V/X7R C278 1UF/16V/X7R
RFGND
FB22 FB22 R104 R104 NC/0 NC/0
270nH 270nH
RFGND
TUNER_SCL
RFGND
R105 R105
0 0
S
FM3_3V
R214 R214
KST-MW104MV1-R78W KST-MW104MV1-R78W
4.7K 4.7K
IIC/RDSI
LA
R89 R89 Bead/220 Bead/220 CK
DA
R87 R87 Bead/220 Bead/220
FM3_3V
C119 1uF/16V/Y5V C119 1uF/16V/Y5V R133 R133 33 33 R_OUT
C120 1uF/16V/Y5V C120 1uF/16V/Y5V R134 R134 33 33 L_OUT
C121 C121 C122 C122 C123 C123 C124 C124 C125 C125
S
S
FM33V
+12V_D VCC_4052
R232 R232 R233 R233
1K 1K 100K 100K
VCC_4052
R184 R184
100 100
C156 C156 C196 C196 R227 R227 R234 R234
1K 1K 100K 100K
U17 U17 0.1uF/25V/Y5V 0.1uF/25V/Y5V 1uF/16V/Y5V 1uF/16V/Y5V
12 16
X0 VCC
14
X1
15
X2
11
X3
13 C143 10uF/10V/Y5V C143 10uF/10V/Y5V R166 R166
X
1
Y0
5
Y1
2
Y2
4
Y3
3 C147 10uF/10V/Y5V C147 10uF/10V/Y5V R172 R172
Y
10
A
9
B
C149 C149
6 C148 C148 1000pF/50V/X7R 1000pF/50V/X7R
EN
7 8 R403 R403 R402 R402 1000pF/50V/X7R 1000pF/50V/X7R
VEE GND
74HC4052 74HC4052 1M 1M 1M 1M
B
C
AGND
C1495 C1495
20pF/50V/NP0 20pF/50V/NP0
C287 1000pF/50V/NP0 C287 1000pF/50V/NP0
Y5 Y5
12MHz/30PPM 12MHz/30PPM
C284 C284
AGND S
U23 U23
IC_20P_RZ5B705(002) IC_20P_RZ5B705(002)
C1496 C1496
1 20
GND VDD 20pF/50V/NP0 20pF/50V/NP0
2 19
VDDRF X2
3 18
CP2 X1
4 17 C285 1UF/16V/X7R C285 1UF/16V/X7R
FRF1 CP1 S
5 16 R65 R65 330 330
GNDRF IISD AGND
6 15 R135 R135 33 33
ARF1 LOUT
7 14 R136 R136 33 33
ARF2 ROUT
8 13
IIC/RDSI DA
9 12
LA GND
10 11
CK VDD
C286 C286
C288 C288
5600pF/50V/X7R 5600pF/50V/X7R
47pF/50V/NP0 47pF/50V/NP0
R60 R60 R61 R61
R63 R63
4.7K 4.7K 0 0
FM3_3V 5.1 5.1
S
C167 C167 C281 C281
1UF/16V/X7R 1UF/16V/X7R 2.2UF 2.2UF
S
U15 U15
1
IIC/RDSI
2
LA
3
CK
4
DA
5
VCC(+3.3V)
6
GND
7
R-OUT
8
L-OUT
9
IISD
L3 L3 10uH/280mA 10uH/280mA
VCC5V_D
FM3_3V
CE15 CE15
+ +
470uF/10V 470uF/10V
S
470 470 ADC_INL
470 470 ADC_INR
C
8-10
D E
FB2 FB2 500/500mA 500/500mA
RFGND
R_OUT
L_OUT
TUNER_SDA
DVCC3
R141 R141 5.1 5.1
CE19 CE19
+ +
220uF/16V 220uF/16V C130 C130
0.1uF/25V/Y5V 0.1uF/25V/Y5V
U16 U16
ADC_AK5358A ADC_AK5358A
ADC_INR 1 16
AINR CKS0
2 15
ADC_INL
AINL CKS2
3 14
CKS1 DIF
4 13 ADC_RST
VCOM PDN
5 12 R151 R151 33 33 BCLK
DVCC3 AGND SCLK
6 11 R154 R154 33 33 MCLK
VA MCLK
FB15 FB15 500/200mA 500/200mA 7 10 R155 R155 33 33 LRCLK
VD LRCK
8 9 R156 R156 33 33 ADC_DATA
DGND SDTO
+ +
CE20 CE20 C137 C137
10uF/16V 10uF/16V 0.1uF/25V/Y5V 0.1uF/25V/Y5V
D E
1
2
BCLK
MCLK
LRCLK
6
ADC_DATA
3
4