Sony ST-SDB900 Service Manual ▷ View online
9
9
ST-SDB900
ST-SDB900
3-1. BLOCK DIAGRAM
DAB
MODULE
AUDIO_LEFT_OUT
AUDIO_RIGHT_OUT
Q151,
D101-103
OR GATE
SPDIF
S1_IN
S1_DOUT
DAB_OUT
DAB_IN
AM
AC_STOP
86
EEPROM
IC301
IC401
MUTE
Q200
MUTE
Q250
L
R
J201
ANALOG
OUT
DAB
DIGITAL
OPTICAL OUT
59
FL-DATA
53
IC300
SYSTEM CONTROL
52
43
75
74
DAB_IO1
28
DAB_IO2
27
DAB_OUT
DAB_IN
FLASH1
AC_STOP
X_L_MUTING 85
RSTX
77
SDA
34
X0
82
X1
83
SCL
33
X301
16MHz
5
6
54
SIRCS
60
FL CLK
63
FL-CS1
62
FL-CS0
61
FL RST
IC800
FL DRIVER
DA
63
CP
62
CS
61
RESET
60
4
AD1
3
AD2
P36-70
P1-35
5
39
40
55
SEG1
SEG35
COM1
COM16
FLUORESCENT
INDICATOR
TUBE
NC
FL800
IC801
FL DRIVER
DA
63
CP
62
CS
61
RESET
60
4
AD1
3
AD2
5
39
SEG1
SEG35
FF1
FF2
SIRCS
IC802
1
38
KEY_AD0
39
KEY_AD1
55
KEY3
FUNCTION
KEY
ROTARY
ENCORDER
RV801
S831-833
D201
AC
IN
S901
POWER
-30V REG
Q912
IC907
+5V
REG
REG
5
4
FL -30V
D922-924
Q909
5
4 AC DETECT
IC912
D918
AU -6V
RECT
D901-904
IC901
+10V
REG
1
3
D919
FM+3.3V
D+3.3V
D+3.3V
IC903
-6V
REG
2
3
RECT
D911
D911
T901
AU +6V
FM +10V
T902
MUTE +3.3V
POWER
CONTROL
Q910,911
30
DAB_PWR
48
AC_STOP
: DIGITAL OUT
: FM
• Signal path
: ANALOG OUT
GATE
IC403
P36
P71
P72
G1-16
66
JOG_P
67
JOG_M
S841-843
RECT
D914-916
Q910
FMAM +3.3V
DAB +5V
POWER
CONTROL
Q906,908
Q906,908
31
DAB_PWR5
IC910
+3.3V
REG
2
3
D913
IC911
+3.3V
REG
1
2
1
Q202
BUFFER
IC200
Q201
4
DABSEL
4
12
13
3
5
11
9
LPF
IC202
AMP
IC203
FM
COAXIAL
75
Ω
FM/AM
TUNER
TUNER
ANTENA
LCH
RCH
CE
TUNED
STEREO
MUTING
FM_S-METER
RDS_INT
RDS_DATA
SLATCH
TUNED
STEREO
TU_MUTING
S-METER
RDS_INT
RDS_DATA
DAB
COAXIAL
75
Ω
ANTENA
CL
DO
DI
TUN_CLK
TUN_DIO2
TUN_DIO1
73
78
14
76
15
SLATCH
TUNED
STEREO
TU_MUTING
S-METER
RDS_INT
RDS_DATA
TUN_CLK
TUN_DIO2
TUN_DIO1
SLATCH
TUNED
STEREO
TU_MUTING
FM_SIG_OUT
RDS_INT
RDS_DATA
TUN_CLK
TUN_DIO2
TUN_DIO1
D +3.3V
IC100
RESET
2
1
1
2
3
6
7
8
FLASH2
RESET
MD0
MD2
51
49
MD0
MD2
FLASH2
FLASH1
FLASH1
FLASH2
WP
32
7
SDA
SCL
WP
X1
83
X302
1.8432MHz
2
POWER
TRNSFORMER
IC902
+6V
REG
1
3
14
IC201
SELECTOR
DIGITAL
TRNSMITTER
CN306
FLASH
PROGRAM
TUNING/
SELECT
SELECT
REMOTE
SENSOR
SENSOR
D930
10
10
ST-SDB900
ST-SDB900
3-2. PRINTED WIRING BOARD — MAIN BOARD (SIDE A) —
•
See page 7 for Circuit Boards Location.
:Uses unleaded solder.
C410
X301
R9067 R9066
R608
R392
R391
R378
R376
R374
R373
R353
R352
R351
R350
R349
R346
R344
R344
R343
R331
R329
R302
R301
R335
R106
R105
IC300
IC100
FB377
FB329
FB301
FB101
FB100
R217
X302
C912
C382
C381
C367 C366
C351
C349
C377
C343
C335
C323
1
30
80
3
1
4
5
51
31
50
100
81
C302
C107
C108
C109
C113
C114
Q201
R904
R903
Q911
Q910
E
E
Q908
Q906
IC403
D918
D930
D910
IC201
R403
1
3
5
4
FB300
C105
Q202
CN300
1
2
3
4
MAIN BOARD (SIDE A)
11
(11)
1-862-510-
1
8
16
9
E
E
E
E
2
3
4
5
6
7
8
9
A
1
B
C
D
E
F
G
H
• Semiconductor
Location
Ref. No.
Location
D910
B-2
D918
B-2
D930
B-3
IC100
F-2
IC201
D-7
IC300
F-2
IC403
F-8
Q201
D-8
Q202
F-8
Q910
E-3
Q911
E-3
Q906
E-5
Q908
E-8
11
11
ST-SDB900
ST-SDB900
3-3. PRINTED WIRING BOARD — MAIN BOARD (SIDE B) —
•
See page 7 for Circuit Boards Location.
:Uses unleaded solder.
1
1
17
17
2
16
1
1
2
1
2
1
14
15
44
43
4
8
8
5
1
1
2
1
1
2
2
8
1
3
1
4
8
5
1
4
8
5
1
1
4
8
5
5
1
4
1
1
3
1
3
1
3
1
3
C939
C940
R116
C110
C336
R339
R363
R362
R398
C327
R332
R115
C354
R361
R360
R359
R345
R390
C339
R336
C333
R334
R333
C328
R314
R375
R340
R114
R113
C102
R109
C130
D201
C332
C348
R110
R328
R9064
C338
R338
FB348
IC301
R399
R327
C337
C100
C128
C127
C126
R315
R111
FB102
C112
C111
C129
FB103
C926
E
R211
R914
D913
R911
D909
R916
R908
Q912
R260
C221
R917
D904
C923
D923
R401
C409
R918
D915
C921
R210
C929
C928
D922
C916
R250
D917
D916
D911
R921
D914
C918
R261
D903
D902
D901
D102
D103
R263
Q151
D104
D908
R920
IC912
C919
R907
D912
C408
R919
R910
D924
R913
R912
D919
D101
IC200
IC202
IC203
D105
C401
R265
R266
R214
R258
R255
R200
R259
R254
R253
R216
R202
R257 Q250
R215
R206
R208
R205
R201
R209
R204
R203
R256
R264
R252
Q200
E
E
E
R251
R207
L400
C938
C937
C941
C942
C943
MAIN
C902
J202
C410
C260
C210
X301
C925
G201
G102
G101
CN906
CN304
CN301
C933
C901
CN907
CN908
T902
C935
C936
R906
G902
C201
C202
C203
C204
C205
C206
C207
C208
C211
C250
C251
C252
C253
C254
C255
C258
C259
C261
IC911
IC910
IC907
IC903
IC902
IC901
G901
C200
C619
CN306
J203
C934
C931
C930
C920
C917
C915
C914
C913
C908
C907
C906
C905
C904
C903
C618
IC401
J201
G903
CN904
C131
C927
C909
C209
G202
C132
C924
C922
CN300
HEAT_SINK
3-309-144-42
TERMINAL
EARTH
TERMINAL
EARTH
TERM
INAL
EARTH
TERMINAL
EARTH
TERMINAL
EARTH
TERMINAL
EARTH
TERMINAL
EARTH
MAIN BOARD (SIDE B)
11
(11)
1-862-510-
A
DISPLAY BOARD
(Page 16)
FLASH PROGRAM
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
AC_IN
(CHASSIS)
(CHASSIS)
DAB MODULE
TUNER
B
TRANS BOARD
(Page 15)
C
TRANS BOARD
(Page 15)
F
AC SW BOARD
(Page 15)
R
ANALOG OUT
DAB ANTENNA
MCX CONNECTOR
L
2
3
4
5
6
7
8
9
A
1
B
C
D
E
F
G
H
• Semiconductor
Location
Ref. No.
Location
D101
E-2
D102
E-3
D103
E-3
D104
E-2
D105
E-2
D201
B-7
D901
B-6
D902
B-6
D903
B-7
D904
B-7
D908
C-6
D909
B-7
D911
B-8
D912
C-8
D913
B-9
D914
B-8
D915
B-8
D916
B-8
D917
B-8
D919
B-8
D922
C-8
D923
C-7
D924
C-7
IC200
D-3
IC202
D-3
IC203
D-3
IC301
G-7
IC401
E-2
IC901
B-6
IC902
B-5
IC903
B-6
IC907
E-5
IC910
C-7
IC911
E-7
IC912
B-7
Q151
E-2
Q200
D-2
Q250
E-2
Q912
C-9
12
12
ST-SDB900
ST-SDB900
3-4. SCHEMATIC DIAGRAM — MAIN BOARD (1/3) —
DAB MODULE
C131
C129
R110
R109
R111
C337
R116
C111
FB102
C102
C100
C112
C132
C130
C258
C253
R253
R254
R255
IC203(1/2)
R258
IC202(1/2)
C254
C255
R256
R259
R209
R206
C211
C261
C204
C205
C208
R204
R205
R203
C203
C206
Q201
R217
R214
R264
R202
C202
R200
C210
R210
C209
R211
R207
R201
Q200
Q250
R251
R250
C250
C200
C221
J201
J203
J202
R257
C260
IC200(1/2)
C259
R261
R260
R252
C252
Q151
R263
C207
C251
C201
D104
C619
D105
L400
C409
C408
IC403
Q202
FB103
R403
C410
R265
R215
R216
R266
IC201
C401
R401
IC203(2/2)
IC202(2/2)
IC200(2/2)
R208
CN300
IC401
3300
6.3V
0.1
100
100
470
0.1
10
10
0UH
10
0.1
0.1
3300
6.3V
0.1
0.00022
0.0047
1.5k
0.5%
1.5k
0.5%
12k
0.5%
NJM4565M(TE2)
1k
0.5%
NJM4565M(TE2)
0.001
0.1
22k
0.5%
22k
0.5%
22k
0.5%
22k
0.5%
0.1
0.1
0.001
0.1
0.00022
1.5k
0.5%
12k
0.5%
1.5k
0.5%
0.0047
0.1
DTC114EKA
BUFFER
10k
1k
0.5%
1k
0.5%
470
47
25V
470
0.5%
0.0001
10k
0.5%
0.1
33k
0.5%
100k
0.5%
0.5%
1k
0.5%
2SC3624A-T1L1516
MUTE
2SC3624A-T1L1516
MUTE
1k
0.5%
470
0.5%
470p
470p
0.1
2P
100k
0.5%
0.5%
0.0001
NJM2114M(TE2)
0.1
33k
0.5%
10k
0.5%
470
0.5%
47
25V
DTA114EKA
OR GATE
100k
0.1
100
16V
16V
100
16V
16V
1SS367-T3
2200
6.3V
6.3V
1SS367-T3
4.7
0.1
SN74AHCT1G08DCKR
DTC114EKA
BUFFER
0UH
100
1/10W
0.1
100k
0.5%
0.5%
100k
0.5%
0.5%
100
0.5%
100
0.5%
TC74HC4053AFT
0.1
10k
NJM4565M(TE2)
NJM4565M(TE2)
NJM2114M(TE2)
1k
0.5%
44P
TOTX141L
DAB+3.3V
DAB_3.3GND
DAB+5V
AU+6V
AU_GND
AU-6V
MUTE3.3V
DAB_GND
EARTH
R CH
L CH
OR GATE
+3.3V
BUS
DABSEL
DAB_OUT
DAB_IN
LPF
AMP
GATE
TRANSMITTER
DIGITAL
R
L
ANALOG OUT
DAB
OPTICAL
OUT
(3/3)
MAIN
BOARD
(2/3)
(3/3)
MAIN
BOARD
MAIN
BOARD
(2/3)
MAIN
BOARD
DAB MODULE
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
1
2
3
4
5
6
7
8
(Page 14)
(Page 13)
(Page 13)
(Page 14)
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