Sony SRS-DB500 Service Manual ▷ View online
SRS-DB500
SRS-DB500
21
21
4-13. SCHEMATIC DIAGRAM - POWER Board -
D
AMP
BOARD
CN551
(2/3)
B
AMP
BOARD
CN591
(2/3)
IC B/D
IC B/D
IC B/D
IC B/D
161
20.8
160.3
0.9
0
3.3
161
0.4
19.8
2.5
25.1
3.3
4
3.3
3.3
3.3
12.5
12
12
2.5
2.3
20.8
22
21.3
19.8
19.8
19
4
3
0.9
4
2.9
2
28
27
2.3
3.2
0.1
3.2
0.1
0.7
3.2
0.1
27
275V
0.22
C902
TH901
~
~
D5SBA60F01
D901
250V
0.01
C920
250V
0.01
C918
250V
100p
C930
FR901
0.1
1W
250V
100p
C913
R903
R904
SARS03
D913
C906
1000p
1.5kV
35V
47
C908
4700p
C911
220p
C909
220
R911
10
R905
D1NL20U-TR2
D905
18k
R919
3.3k
R906
10k
R907
1/2W
3.3k
R908
35V
2200
C932
35V
2200
C933
C935
0.01
5.6uH
L931
0.1
C939
33k
R932
470k
R936
4.7k
R933
0.047
C937
3
1
2
3.3k
R939
1k
R934
10k
R937
10k
R940
1k
R938
RT1N441C-TP-1
Q943
RT1N441C-TP-1
Q947
1k
R949
1
2
10
11
7
9
12
13
14
5
4
8
15
16
3
T902
1
3
4
5
6
8
DRAIN
S/OCP
VCC
GND
FB/OLP
START_UP
R929
2.2
1/2W
2KV
47p
C925
0.1
C929
4.7
R922
D1NL20U-TR2
D922
100V
22
C922
4.7k
R923
10
R925
1k
R969
4700p
C923
50V
2.2
C924
680k
R926
RK36LF-B3
D943
10V
3300
C940
25V
1000
C941
10uH
L951
10uH
L945
10V
470
C948
150
R946
10k
R948
10V
100
C949
25V
470
C942
0
R941
16V
100
C943
0.1
C951
220
R951
2.2k
R952
22k
R954
0.047
C952
3
1
2
3.9k
R953
470
R955
TP901
TP902
TP903
TP904
JL912
JL918
JL911
JL909
JL908
JL907
JL906
1k
R967
1k
R966
STO2D-140
D921
0
R971
JL917
JL914
JL915
C965
0.001
250V
VDR901
R901
1/2W
1M
275V
0.22
C901
1
3
3P
CN901
2
C963
C964
R913
0.22
2W
CL001
CL002
JW928
C980
3300p
1.5kV
C905
1
3
10
11
2
9
12
13
14
5
8
4
6
T901
JW927
JW905
JW916
JW915
JW914
JW917
JW918
JW919
JW912
JW913
JW911
JW910
JW987
JW981
JW982
TP919
JW983
JW984
JW985
JW988
JW986
R927
0.01
C936
0.01
C971
0.01
C955
0.01
C969
0.01
C958
0.01
C960
JL910
JL913
35V
2200
C934
JL916
1
3
4
5
6
7
8
9
10
11
12
13
14
CN906
14P
P_CONT1
2
NC
P_CONT2
E+4V
D+3.3V
E+6V (NC)
AGND
E+9V (NC)
M+8V (NC)
MGND (NC)
E+12V (NC)
D+12V (NC)
A+12V
DGND
MA2J1110GLS0
D914
MA2J1110GLS0
D906
MA2J1110GLS0
D907
MA2J1110GLS0
D908
MA2J1110GLS0
D909
MA2J1110GLS0
D910
RT1N441C-TP-1
Q981
22k
R992
10k
R993
2SC3052EF-T1-LEF
Q982
1.2k
R910
LF901
LF902
R931
3.3k
MAZ8100G0LS0
D915
MAZ8100G0LS0
D923
MAZ8100G0LS0
D926
MAZ8200G0LS0
D945
MAZ8240G0LS0
D924
MAZ8051GMLS0
D932
MAZ8051GMLS0
D925
10k
R994
10k
R995
2SC3243-TP-E
Q921
2SA1015TP-YGR
Q901
E
EB902
E
EB903
E
EB904
E
EB907
1
2
3
4
6
5
Vcont
Vin
GND
Vout
Sense
1
2
3
4
6
5
Vcont
Vin
GND
Vout
Sense
RK39LF-B3
D941
FMX-22SL
D931
1
2
3
4
4P
CN904
GND
GND
+28V
+28V
R965
0
PS2561AL1-1-V-W
PC903
PS2561AL1-1-V-W
PC901
PS2561AL1-1-V-W
PC902
10k
R909
1k
R935
1k
R956
E
EB905
(CHASSIS)
ISOLATOR
ISOLATOR
ISOLATOR
(CHASSIS)
(CHASSIS)
MAIN POWER TRANSFORMER
SUB POWER TRANSFORMER
LINE FILTER
F901
T5AH 250V (AEP, UK, SP, AR, AUS, CH)
T6.3AH 250V (US, CND, E92, MX, TW)
LINE FILTER
C910
22 50V (AEP, UK, SP, AR, AUS, CH)
10 50V (US, CND, E92, MX, TW)
C903
1000 200V (US, CND, E92, MX, TW)
330 450V (AEP, UK, SP, AR, AUS, CH)
330p 250V (US, CND, E92, MX, TW)
680p 250V (AEP, UK, SP, AR, AUS, CH)
C938
C905
0.01 630V (US, CND, E92, MX, TW)
3300p 630V (AEP, UK, SP, AR, AUS, CH)
R903, 904
100k 3W (AEP, UK, SP, AR, AUS, CH)
33k 3W (US, CND, E92, MX, TW)
C963, 964
0.001 250V (AEP, UK, SP, AR, AUS, CH)
2200p 250V (US, CND, E92, MX, TW)
(AEP, UK, SP, AR, AUS, CH)
(US, CND, E92, MX, TW)
(US, CND, E92, MX, TW)
(AEP, UK, SP, AR, AUS, CH)
1500p
(US, CND, E92, MX, TW)
(US, CND, E92, MX, TW)
C907
1000p
(AEP, UK, SP, AR, AUS, CH)
(AEP, UK, SP, AR, AUS, CH)
(AEP, UK, SP, AR, AUS, CH)
(US, CND, E92, MX, TW)
(US, CND, E92, MX, TW)
R914
0.1 5W (AEP, UK, SP, AR, AUS, CH)
0.05 5W (US, CND, E92, MX, TW)
0.33 2W (AEP, UK, SP, AR, AUS, CH)
R912
0.22 2W (US, CND, E92, MX, TW)
C928
470p 250V (AEP, UK, SP, AR, AUS, CH)
220p 250V (US, CND, E92, MX, TW)
B+ SWITCH
RIPPLE FILTER
(AC IN)
(CHASSIS)
R927
1 1W (AEP, UK, SP, AR, AUS, CH)
0.82 1W (US, CND, E92, MX, TW)
Q981, 982
POWER VOLTAGE
LIVE
NUTRAL
NC
SI-3120KM-TLS
IC941
+12V REGULATOR
IC941
TA76431AS(TPE6)
IC931
IC931
SHUNT REGULATOR
SI-3033KM-TLS
IC943
IC943
+3.3V REGULATOR
TA76L431S(TPE6,Q)
IC951
IC951
SHUNT REGULATOR
STR-V153
IC921
POWER CONTROL
IC921
IC901
POWER CONTROL
IC901
STR-F6138-LF1352
(US, CND, E92, MX, TW)
(AEP, UK, SP, AR, AUS, CH)
STR-F6168-LF1352
OCP/SYNC
GND
D
VCC
FB/OLP
12345
POWER BOARD
1
43
2
1
43
2
J
4
B
16
6
9
11
D
15
H
10
K
17
3
5
12
C
F
18
1
E
8
G
14
A
2
13
I
7
Q943, 947
POWER ON/OFF CONTROL
CONTROL
(Page 15)
(Page
15)
• See page 22 for IC Block Diagrams.
Ver. 1.3
SRS-DB500
SRS-DB500
22
22
• Waveforms
– AMP Board –
– MAIN Board –
1
IC471
4
2 V/DIV, 10 ns/DIV
20.4 ns
2.7 Vp-p
qa
IC001
9 (XOUT)
500 mV/DIV, 20 ns/DIV
49.4 ns
0.9 Vp-p
2
IC473
4
2 V/DIV, 50 ns/DIV
81 ns
4.2 Vp-p
3
IC401
qf (XfsoOUT)
2 V/DIV, 10 ns/DIV
20.4 ns
4.4 Vp-p
4
IC401
ej (FsoCKO)
2 V/DIV, 10
Ps/DIV
20.8
Ps
4.4 Vp-p
• IC Block Diagrams
– AMP Board –
IC101 NJU7391AV (TE2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
19
32
31
30
29
28
27
26
25
24
23
22
21
20
GND A
GND D
15
16
CLOCK
DATA
OUTA
SRA
TONE-DBA
TONE-BA
TONE-HA
VOL1A
SELOUTA
IN5A
IN4A
IN3A
IN2A
IN1A
V+ D
VREF
OUTB
SRB
TONE-DBB
TONE-BB
TONE-HB
SELOUTB
VOL1B
IN4B
IN2B
IN3B
IN5B
IN1B
BASS
BASS
BIAS
eala SURROUND
VOL
VOL
TRE
TRE
3-WIRE
17
18
LATCH
V+ A
+
–
–
+
–
–
IC301, 351 PCM1808PWR
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
3
VDD
DGND
4
5
5
LRCK 7
REFERENCE
u1/64
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
FMT
12
VINR
14
VINL
13
MD1
11
MD0
10
DOUT
9
BCK
8
CLOCK & TIMING CONTROL
POWER
SUPPLY
SUPPLY
SCKI 6
VREF 1
SRS-DB500
23
IC391 TK11150CSCL-G
IC491 TK11118CSCL-G
IC491 TK11118CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC401, 451 CXD9788AR
12
11
10
9
8
7
6
5
4
3
VSUBC
XVSS
OUTR2
VSSR
OUTR1
VDDR
VSSL
VSSR
OUTL2
OUTL1
VSSL
VDDL
2
1
PWM
CLOCK
GENERATOR
(SECONDARY)
CLOCK
GENERATOR
(PRIMARY)
31
29
25 OVFFLAGL
26 SFLAG
27 INIT
30
S
g P
GAIN
CONTROL
INIT/
MUTE
SAMPLING
RATE
CONVERTER
FILTER &
LOW CUT
FILTER
LINER
INTERPOLATOR
'6
48
XFSOIN
47
XVDD
HPVDDL
46
45
HPOUTL1
HPVSSL
44
43
HPOUTL2
HPVDDR
42
41
HPOUTR1
HPVSSR
40
HPOUTR2
39
37
FSOCKO
38
FSOI
13
XOVSS
14
XFSOOUT
15
XOVDD
16
DVDD
17
DVSS
18
NSPMUTE
19
SOFTMUTE
20
PGMUTE
SERIAL
CONTROLLER
21
SCDT
22
SCSHIFT
23
SCLA
TCH
24
OVFFLAGR
28 MCKSEL
32 BFVDD
33 BFVSS
34 TEST
35 DVDD
36 XFSIIN
LRCK
BCK
DATA
SRS-DB500
24
IC501, 551 CXD9965TN
12
11
10
13
14
15
16
9
8
17
18
22
21
5
6
7
26
25
4
AGND
GVDD_C
GND
GND_B
OUT_D
GND_D
GND_C
GND_A
OUT_A
44
41
40
39
38
37
36
35
34
33
33
32
31
30
29
28
27
PWM
RCV.
OVERLOAD
PROTECTION
TEMP.
SENSE
GATE
DRIVE
ISENSE
POWER
ON
RESET
INTERNAL PULLUP
RESISTORS TO VREG
OUT_C
BST_C
PVDD_C
PVDD_D
PVDD_D
PVDD_D
NC
BST_D
GVDD_D
GVDD_D
BST_B
OUT_B
PVDD_B
GVDD_A
PVDD_A
PVDD_A
PVDD_A
VREG
VDD
PWM_D
/RESET_CD
PWM_C
M1
M2
M3
VREG
OC_ADJ
PWM_B
/RESET_AB
/SD
/OTW
PWM_A
2
NC
3
1
NC
GVDD_B
20
NC
19
NC
PROTECTION
AND
I/O LOGIC
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
UNDER
VOLTAGE
PROTECTION
VREG
43 BST_A
42 NC
24
23
23
VREG
4
4
CTRT.
TIMING
PWM
RCV.
GATE
DRIVE
CTRT.
TIMING
PWM
RCV.
GATE
DRIVE
CTRT.
TIMING
PWM
RCV.
GATE
DRIVE
CTRT.
TIMING
– POWER Board –
IC941 SI-3120KM-TLS
IC943 SI-3033KM-TLS
IC943 SI-3033KM-TLS
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
–
REF
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