Sony DSX-S300BTX Service Manual ▷ View online
DSX-S300BTX
DSX-S300BTX
29
29
1
18
LSW922
LSW923
LSW924
LSW925
LSW926
LSW927
LED920
LED921
LED922
LED923
LED924
LED925
LED927
LED938
LED939
LED940
LED941
CN903
S920
S921
S928
C974
IC900
LSW924
LED920, 922, S920
LED940, 941, LSW925
LED924, 925, S928
LED921, 923, S921
LED929
LED926
LED928
LED934
LED936
LED935
LED937
LED932
LED930
LED933
LED931
LSW926
BE
1
12
13
24
D970
D972
CL900
CL901
CL902
CL903
CL904
L900
Q920
Q921
Q922
Q923
Q924
FB900
VDR900
FB901
VDR901
VDR902
FB903
R900
R903
R904
R906
R907
R908
Q970
Q972
CN901
R920
R921
R922
R923
R924
R925
R926
R927
R928
R929
R930
R931
R932
R933
R934
R935
R936
R937
R938
R939
C900
C901
R940
R941
R942
R943
R944
R945
R946
R947
R948
R949
R950
R951
R952
R953
R954
R955
R956
R957
R958
R959
R960
S900
R961
R962
R963
R964
R965
R966
R967
R968
R969
R970
R971
R974
R975
R976
R977
R978
R979
R980
R981
R982
R983
R984
R985
R987
D900
D901
D902
D903
D904
D905
D906
D907
D908
D909
D910
D911
C972
D912
D913
D914
D915
D916
C981
C983
C984
RE900
CN900
CN900
S900
LSW923
S920, 921, 928
LSW922 – 927
LED920 – 941
A
K
A1
K1
S1
A2
K2
S2
PAUSE
A1
K1
S1
A2
K2
S2
A1
K1
S1
A2
K2
S2
A1K1S1
A2K2S2
A1
K1
S1
A2
K2
S2
A1
K1
S1
A2
K2
S2
A
K
A
K
A
K
A
K
A
K
A
K
A
K
A
K
A
A
K
K
A
A
K
K
A
K
A
K
A
K
A
K
A
A
K K
A
K
A
K
A
K
A
K
A1
K1
S1
A2
K2
S2
BLUETOOTH
1-882-203-
11
(11)
DISPLAY BOARD
(COMPONENT SIDE)
SOURCE
OFF
MODE
(UPPER)
(UPPER)
(UPPER)
(UPPER)
(RIGHT)
(RIGHT)
(RIGHT)
(RIGHT)
(RIGHT)
(RIGHT)
(LOWER)
(LOWER)
(LOWER)
(LOWER)
LED926 – 939
(RING ILLUMINATION)
1
4
4
3
2
2
DSPL/
SCRL
EL901
EL INDICATOR
ELEMENT
SOUND/MENU/
(VOLUME)
ROTARY
ENCODER
1-882-203-
11
(11)
DISPLAY BOARD
(CONDUCTOR SIDE)
B
SUB BOARD
CN201
4
1
E
E
E
E
E
E
4
7
1
3
6
10
9
5
2
8
S900
FRONT PANEL
OPEN/CLOSE
DETECT
A
B
C
D
E
1
2
3
4
5
6
7
(EXTERNAL)
ZAP/ SHUF
AF/TA/ PTY
PTY
PTY/CAT
(US, CND)
(E)
(AEP, IT, UK)
/
PUSH ENTER/
5-14. PRINTED WIRING BOARD - DISPLAY Board -
(Page 28)
•
: Uses unleaded solder.
• See page 19 for Circuit Boards Location.
DSX-S300BTX
DSX-S300BTX
30
30
/
16.1
16.1
15.4
3.3
3.3
0
16
3.3
0
10.5
10.4
9.7
0
5.1
5.1
0
0
9.2
1
2
3
4
4P
CN900
VDR900
UDZSUSTE-176.8B
D908
UDZSUSTE-176.8B
D910
UDZSUSTE-176.8B
D912
UDZSUSTE-176.8B
D907
UDZSUSTE-176.8B
D904
UDZSUSTE-176.8B
D903
UDZSUSTE-176.8B
D902
UDZSUSTE-176.8B
D900
S900
LSW923
3
1
2
4
5
6
ISA1235AC1TP-1EF
Q924
RT1N141C-TP-1
Q923
10k
R951
10k
R952
RE900
(VOLUME)
1
10
2
3
5
6
7
8
4
9
820
R906
1k
R907
1k
R908
2.2k
R926
1.5k
R924
1.2k
R923
1k
R921
10k
R975
100
R976
0.1
C981
1k
R922
2SC3052EF-T1-LEF
Q972
CIRCUIT
VOLTAGE DISCHARGE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
24P
CN901
USB,GND
D+
D-
RE_0
RE_1
KEY_0
KEY_GND
KEY_1
SIRCS
BLINK
OEL,DC
UDZSUSTE-176.8B
D901
UDZSUSTE-176.8B
D915
UDZSUSTE-176.8B
D909
UDZSUSTE-176.8B
D91
1
RKZ18B2KGP1
D905
UDZSUSTE-176.8B
D913
150
R939
330
R930
150
R937
1.8k
R925
UDZSUSTE-176.8B
D914
100
R903
10k
R932
RT1N141C-TP-1
Q921
180
R928
470
R935
0
R984
0
R982
0
R977
100
R978
0
R979
0
R980
0
R981
LRB751V-40T1G
D916
UDZSUSTE-176.8B
D906
2.2
C900
220
R941
330
R943
LSW922
3
1
2
4
5
6
3.3k
R927
2SA1365-T112-1EF
Q970
10k
R971
10k
R970
LSW926
3
1
2
4
5
6
VCC
OUT
GND1
GND2
RS-470
IC900
1
2
3
4
100
R904
1
C901
CL-195SR-CD-T
LED924
CL-197HB1E-D-T
LED925
S928
LSW927
3
1
2
4
5
6
S920
CL-195SR-CD-T
LED920
CL-197HB1E-D-T
LED922
S921
CL-195SR-CD-T
LED921
LSW924
3
1
2
4
5
6
CL-197HB1E-D-T
LED923
R955
220
R956
220
R953
470
220
R960
470
R958
220
R959
R954
470
470
R957
CL-197HB1E-D-T
LED930
CL-195SR-CD-T
LED929
CL-195SR-CD-T
LED928
CL-197HB1E-D-T
LED927
CL-197HB1E-D-T
LED931
CL-197HB1E-D-T
LED926
(UPPER)
(UPPER)
(LOWER)
(LOWER)
(RIGHT)
(RIHGT)
(UPPER)
(UPPER)
(LOWER)
(LOWER)
(RIGHT)
(RIHGT)
(RIGHT)
(RIHGT)
CL-195SR-CD-T
LED932
CL-195SR-CD-T
LED933
180
R929
390
R931
220
R942
390
R944
3
1
2
4
L900
CL-197HB1E-D-T
LED934
CL-195SR-CD-T
LED936
Q920
LTC614TKFP8T146
LED DRIVE
RTAN140C-T112A-1
Q922
LSW925
3
1
2
4
5
6
18P
CN903
1
AGND
2
VCC
3
GND
4
VDD
5
VCC
6
AGND
7
AGND
8
AGND
9
CSB
10
RSTB
11
DC
12
GND
13
SCLK
14
SID
15
VDD
16
GND
17
VCC
18
AGND
0
R983
0
R985
LRB751V-40T1G
D972
35V
10
C974
CL-197HB1E-D-T
LED935
CL-195SR-CD-T
LED937
220
R963
220
R964
330
R961
390
R962
VDR901
VDR902
DA2J10100L
D970
0.1
C972
180
R945
390
R948
390
R949
390
R950
100
R947
FB900
FB901
CL-197HB1E-D-T
LED938
CL-195SR-CD-T
LED939
220
R968
220
R969
R965
390
R966
390
R967
390
CL900
CL902
CL903
CL904
CL901
0.1
C983
CL-197HB1E-D-T
LED941
CL-195SR-CD-T
LED940
100
R987
390
R936
220
R934
180
R940
150
R938
180
R946
820
R920
0.01
C984
FB903
0
R900
220
R933
RSTB
SCLK
SDI
CSB
RSTB
DC
SCLK
CSB
SDI
DC
ROTARY
ENCODER
SOURCE
OFF
SHUF
ZAP/
MODE
BLUET
OOTH
PTY/CAT
(US, CND)
(AEP, IT, UK)
(E)
PTY
SCRL
DSPL/
IC900
DISPLAY BOARD
OPEN/CLOSE
DETECT
FRONT PANEL
SOUND/MENU/
PUSH ENTER/
LED DRIVE
LED DRIVE
R974
10k
B+ SWITCH
19
20
CONTROL
RECEIVER
REMOTE
PAUSE
CN201
BOARD
SUB
B
LED940, 941
BLUET
OOTH
PTY
AF/TA/
LED924, 925
LED920, 922
SOURCE
OFF
LED921, 923
PAUSE
RING ILLUMINATION
LED926-939
EL901
EL
INDICATOR
ELEMENT
J
4
B
16
6
9
11
D
15
H
10
17
3
5
12
C
F
18
1
E
8
G
14
A
2
13
I
7
(EXTERNAL)
B+ SWITCH
B+ SWITCH
USB_VBUS
DOOR_SW
KEY_2(PUSH)
OEL_GND
OEL_VDD2+16V
ILL_B/G_SW
ILL_+B
OEL_DO
OEL_CS
OEL_CLK
OEL_VDD1 +3.3V
OEL_RST
OEL/ILL_GND
5-15. SCHEMATIC DIAGRAM - DISPLAY Board -
(Page
28)
DSX-S300BTX
31
• IC Block Diagrams
– MAIN Board –
IC1 TEF6617T/V1/S470, 518
AMRFIN 1
AMRFDEC 2
FMIN2 3
FMIN1 4
LOUT 8
ROUT 9
MPXOUT 13
RSSI 14
XTAL2 15
XTAL1 16
GNDAUD 10
GNDRF 5
VCC+8.5V 6
AMRFAGC 7
AMIFAGC 11
MPXIN 12
AMOUT2
32
AMOUT1
31
AMIFAGC1
30
AMSELIN2
29
VCOLOOP
25
VCCVCO
24
VREF+4V
20
SDA
19
SCL
18
GNDDIG
17
GNDANA
23
AMSELIN1
28
TESTCT
27
VCOREF
26
VCC+8.5V
22
GREGSUP
21
AM
TUNER
FM
TUNER
OUTPUT
PLL
TUNING
SYSTEM
I2C BUS
POWER
SUPPLY
STEREO DECODER
HIGH CUT
SOFT MUTE
NOISE BLANKER
SIGNAL
IMPROVEMENT
CONTROL
BANDWIDTH
CONTROL
IC101 BA8271F-E2
1
2
3
4
5
6
7
8
9
10
14
13
12
11
VCC
BUS ON
LINK OFF
CLK OUT
DA
TA
OUT
DA
TA
IN
BUS RESET
BUS DA
TA
VREF
BUS CLK
GND
BUS ON IN
BUS ON OUT
RESET
RESET
SWITCH
DSX-S300BTX
32
IC102 TDA8588AJ/N2/R1
MUTING
IN3
12
SVR
VP
10
PGND1
8
VP2
6
SCL
4
SDA
2
IN4
14
PGND3
18
ACGND
16
VP1
20
STB
22
PGND4
24
RST
26
REG1
30
RES-CAP
28
GND
32
REG5
34
BU-CUP
36
OUT3– 3
PGND2/TAB 1
OUT3+ 5
MUTING
OUT1– 7
OUT1+ 9
IN1
REF
11
SGND 13
MUTING
OUT2+ 17
OUT2– 19
IN2 15
MUTING
TEMPERATURE & LOAD
DUMP PROTECTION
AMPLIFIER
TEMPERATURE & LOAD
DUMP PROTECTION
VOLTAGE REGULATOR
PROTECTION/
DIAGNOSTIC
CLIP DETECT/
DIAGNOSTIC
ENABLE
LOGIC
STANDBY/
MUTING
IIC-BUS
INTERFACE
OUT4+ 21
OUT4– 23
DIAG 25
SW2
(REGULATOR & SWITCH BLOCK)
27
SW1 29
REG3 31
REG4 33
VP 35
REG2 37
RESET
REGULATOR 1
REGULATOR 3
REGULATOR 4
REGULATOR 2
REGULATOR 5
IC202 NJM2377M (TE2)
1
IN–
2
F.
B
3
GND
4
OUT
8
REF
7
CT
6
CS
5
V+
OSC
VREF
U. V. LO
L. O
S. C. P
PWM
ER
AMP
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