Schematic Diagram - Bluetooth Section (Hx50Btr/Hx70Btr/Hx90Btr) - Sony HCD-HX50BTR Service Manual

6-11. SCHEMATIC DIAGRAM - BLUETOOTH Section (HX50BTR/HX70BTR/HX90BTR) -

CN901
15P
AINL FB913 0
AGND
AINR FB914 0
AOUTR C922 1 50V
AGND FB904 0
AOUTL C921 1 50V
AVCC9V FB903 0
MAIN
BOARD DVDD5V FB902 0
(2/3)
DGND FB901 0
CN609
(BT_RESET)
(Page 32)
(BT_TXD) FB908 0
(BT_RTS) FB909 0
(BT_RXD) FB910 0
(BT_CTS) FB911 0
(BT_AV_ROLE)
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
+3.3V REGULATOR
IC903
XC6213B332MR
5.1 3.3
VIN
VOUT
VSS
CE
C901 NC
22 C902
16V 0.1
FB905 0
IC902(1/2)
NJM14558V-
JR902 0
R922
100 4.2
1
R908
8.4
470
R971
470 R911
0
R906 100
R970
470
R905 100 TXD
R910
R904 100 CTS
R969 2.2k R914
470 0
R903 100 RXD
R902 100 RTS
C907 C908
R909
R901 100 ROLE 47 47
2.2k
16V 16V
IC902(2/2)
NJM14558V-
4.2
5
4.2
7
6 4.2
R921
100 4
C942
R968
0.22
R942 100k
50V
100
C968
R907 22p
470
R944
100k
R972
470
R973
470
C912
R974 47
470 16V
R967 R943
100k 100k
C941
0.22
50V C967
22p
R941
100
• See page 44 for IC Block Diagrams.
FB906
FB907
0
C905 C958
22p 22p
C904
C903
4.7
0.1
35V
C924 R930 C930
470p 4.7k R934 2.2
4.7k 50V
MIX AMP
R926
220
4.2
2
C926
3 4.2
0.0047
8
R924
220
R932 C928
4.7k 2.2
50V
BLUETOOTH MODULE
C932 R928 CXN1404-3BGL
470p 4.7k
R927
4.7k
C931
470p C927
R923 C925 R931 2.2
220 0.0047 4.7k 50V
R925 R933
C923 220 R929 4.7k C929
470p 4.7k 2.2
50V
8.6
LINE AMP
C952 MC2838-T11
4.3
3 8
R950 1
4.3
1
1k 50V
4.3 2
R956
IC901(1/2) 100k
NJM14558V- C946 R946
22p 100k
R964
100k
R954
47k
R958
R948 1M
47k C954
1
C966 50V
0.22
50V R952
1k
C965 R951
0.22 1k
50V
C953
1
R947 50V
47k R957
1M
R953
47k
R963
100k
C951
C945 R945
1
22p 100k R949 R955
4 50V
1k 100k
4.3 6
4.3
7
4.3 5
IC901(2/2)
NJM14558V-
27 27
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
R900 100
R913
R935 100
47k
R936 100
R937 100
C957
22p
C906
0.1
IC904
R965
100
D901
R960
100
R962
100
D902
MC2838-T11
ANT901
PATTERN
ANTENNA
R961 (FOR BLUETOOTH)
100
R959
100
Note: When IC904 cannot exchange with single. When IC904 is
damaged, exchange the entire mounted board.
CN902
6P
VCC
SPI_MOSI
SPI_CLK
SPI_MISO (NC)
SPI_CSB
GND
CN903
6P
VCC
TXD R938 100 UART_TXD
R939 100 UART_RXD
RXD
R940 100 UART_/RTS (NC)
RTS
R966 100 UART_/CTS
ROLE CTS
GND
CN904
C914
2p