Sony STR-DA1ES / STR-DB780 Service Manual ▷ View online
13
13
STR-DA1ES/DB780
5-1.
BLOCK DIAGRAM – TUNER/VIDEO INPUT Section –
SECTION 5
DIAGRAMS
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
A
(Page 17)
DATA, CLK
FM
AM
8
L CH
10
R CH
13
FM SIG OUT
14
RDS-INT
15
RDS-DATA
88
SW3
87
SW4
89
SW2
90
SW1
2
ST-DO
4
CE
3
ST-DI
1
CLK
7
STEREO
11
MUTE
6
TUNED
DATA
LAT
DATA
CLK
STEREO
MUTE
TUNED
(DB780: AEP, UK)
TU301
TUNER UNIT
53 RDS DATA
RDS SIGNAL
RDS CLOCK
78 SLATCH
73 TUNED
74 STEREO
75 MUTE
43
76 DO
52
SYSTEM
CONTROLLER
IC1601
(1/5)
B
(Page 14)
TU L OUT
FM 75Ω
COAXIAL
AM
R-CH
LAT
TUNED
STEREO
MUTE
DATA
: VIDEO IN
ANTENNA
SW4
SW3
SW2
SW1
MONITOR
S-VIDEO OUT
7
9
3
5
13
V3
V2. IN
TV
LD
V1. IN
10
4
14
6
2
15
1
SW2
SW3
SW1
SW4
SW5
V1.
OUT
M.
OUT
7
9
3
5
13
V3
V2. IN
TV
LD
V1. IN
10
4
14
6
2
15
1
SW2
SW3
SW1
SW4
SW5
V1.
OUT
M.
OUT
15
13
9
11
3
5
7
1
2
14
10
4
6
D304
D303
D851
D850
J298 (1/2)
VIDEO 3
INPUT
VIDEO
VIDEO
TV/SAT IN VIDEO
DVD/LD IN VIDEO
IN VIDEO
OUT VIDEO
VIDEO 2
J305
J304
VIDEO 1
IN VIDEO
OUT VIDEO
J299
J852 (2/2)
J850 (1/2)
J850 (2/2)
J852 (1/2)
C
Y
C
Y
C
Y
C
Y
C
Y
J302
VIDEO SELECTOR
IC308
Y SWITCH
IC852
C SWITCH
IC850
VIDEO 3
INPUT
S-VIDEO
TV/SAT
S-VIDEO IN
DVD/LD
S-VIDEO IN
VIDEO 1
S-VIDEO IN
MONITOR
OUT VIDEO
V1. OUT
V1. IN
V2. IN
V2. OUT
TV
LD
V3
M. OUT
SW5
SW1
SW2
SW3
SW4
VIDEO 1
S-VIDEO OUT
J751
C
Y
SW3
SW4
SW4
SW1
SW2
SW3
P
B
/C
B
/B-Y
P
R
/C
R
/B-Y
P
B
/C
B
/B-Y
P
R
/C
R
/B-Y
CONTROL
Q302
SW3
SW4
J301 (1/2)
Y
Y
J301(2/2)
Y
14
4
15
11 10 9 6
13
12
3
5
1
2
VIDEO SELECTOR
IC303
9
11
13
5
3
1
VIDEO AMP
IC301
(EXCEPT DB780: AEP, UK)
COMPONENT
VIDEO
TV/SAT IN
COMPONENT
VIDEO
DVD/LD IN
INH
C
B
A
P
B
/C
B
/B-Y
P
R
/C
R
/B-Y
COMPONENT
VIDEO
MONITOR OUT
14
14
STR-DA1ES/DB780
5-2.
BLOCK DIAGRAM – AUDIO DSP Section –
4
DIGITAL
CONTROL
CONTROL
DATA
DEMODULATOR
LOCK
DETECT
TIMING
MICON INTERFACE
CLOCK
INPUT
CIRCUOT
IC1102
J1101
J202
AUDIO OUT
L
L
L
AUDIO IN
J298 (2/2)
L
VIDEO 2
VIDEO 1
J131
PHONO IN
L
L
CD/SACD IN
J151
IN
L
L
J201
L
L
L
DIGITAL AUDIO INTERFACE RECEIVER
IC1101
CLK
LAT
DATA
CLK
LAT
DATA
(Page 17)
DATA, CLK, LAT
F
(Page 15)
S MUTE
B
(Page 13)
TU L OUT
4
6
2
8
7
14
15
16
12
AUDIO SELECTOR
IC151
VIDEO SELECTOR
IC201
25
24
22
21
26
27
19
17
14
15
16
6
5
14
2
7
36 37 38
35
47
CKSEK1
48
CKSEL1
B
A
DI
CE
CLK
DO
XMODE
XMODE
3
DIN0
16
DATAO
34
ERROR
15
LRCK
14
BCK
13
CKOUT
17
XSTATE
21
XOUT
22
XIN
24
AUDIO
X1101
12.288MHz
D1601
HDIN
HDCLK
99
ERROR
ANA/DIG
24
F.MUTE
21
20
19
91 SELECT1
92 SELECT2
97 DI
96 CE
95 CLK
98 DO
93 XMODE
94 CKSEL1
5
HACN
3
BST
4
HCS
18
HDOUT
2
GP9
7
PM
1
DATA0
100
XSTATE
A
B
DI
CE
CLK
DO
XMODE
CKSEL1
SYSTEM CONTROLLER
IC1601 (2/5)
18 SDI1
30 SDI2
PM
69
GP8
68
GP9
36
HCS
34
HCLK
33
HDIN
35
HDOUT
32
HACN
56
BST
6
XRST
2
XRST
22
KFSIO
113
10
CDT1
9
SMUTE
12
SCL
13
CS
8
PD
AUDIO DIGITAL
SIGNAL PROCESSOR
IC1201
23
SDO1
24
SDO2
25
SDO3
19
LCKO
20
BCKO
14
SCKOUT
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
: AUDIO IN (ANALOG)
: AUDIO IN (DIGITAL)
A
B
C
(Page 15)
2CHL
TV/SAT
AUDIO IN
DVD/LD
AUDIO IN
OUT
AUDIO IN
AUDIO OUT
VIDEO 3
INPUT
AUDIO
DIGITAL OPTICAL
RECEIVER
IC1104
DIGITAL OPTICAL
RECEIVER
IC1105
DIGITAL OPTICAL
RECEIVER
IC1106
DVD/LD
OPTICAL IN
DIGITAL OPTICAL
RECEIVER
IC289
DIGITAL
(OPTICAL)
TV/SAT
OPTICAL IN
MD/TAPE
OPTICAL IN
MD/TAPE
OPTICAL OUT
DIGITAL OPTICAL
TRANSCEIVER
IC1107
DIGITAL SELECTOR
IC1103
29 BCKI2
28 LRCKI2
59 EXLOCK
MUTING
SWITCH
SWITCH
Q1601
MUTING
SWITCH
SWITCH
Q1602
MD/TAPE
PHONO
EQ AMP
IC131
4
DIN1
5
DIN2
2
DOUT
9
MCLK1
12
MCLK2
X1201
13.6MHz
EEPROM
IC1604
5
34
6
33
SDA
SCL
SDA
SCL
D
82
X0
83
X1
X1601
16MHz
ASSIGNABLE
COAXIAL IN
DVD/LD
CD/SACD
108, 107, 105 – 102,
99, 98, 80 – 77,
75 – 72
109, 110, 112,
97 – 92, 82 – 85,
66 – 64
7 – 10, 13 – 16,
29 – 32, 35 – 38
5 – 1, 44 – 42,
27 – 24, 21 – 18
S-RAM
IC1202
IC1202
6
17
CS
WE
44
45
CSO
WEO
D0 – D15
A0 – A15
D0 – D15
A0 – A15
A/D, D/A CONVERTER
IC1501
SDTI1
27
LOUT1
25
LOUT2
SDTI2
LIN+
LIN–
SDTI3
LRCK
BCLK
MCLKI
MCLKI
9
SDTO
INPUT
CIRCUIT
67
GP10
23
LOUT3
24
ROUT3
AUDIO
INTERFACE
OUPUT
CIRCUIT
30
29
BUFFER
IC1502
6
7
8
5
4
39
42
CCLK
43
CDT1
3
S.MUTE
CS
17
PD
41
C
W
E
(Page 15)
L, SL,
C, W
SL
L
R-CH
R-CH
28
ROUT1
26
ROUT2
15
15
STR-DA1ES/DB780
5-3.
BLOCK DIAGRAM – AUDIO CONTROL Section –
SUB WOOFER
MUTING
Q451
MUTING
Q601
MUTING
Q701
MUTING
Q501
F
(Page 14)
S MUTE
TRIM
LEVEL SHIFT
CIRCUIT
CENTER
MULTI CH IN
M
(Page 17)
DATA, CLK, LAT
L
(Page 17)
DATA, CLK, LAT
K
(Page 16)
PRE RY
G
(Page 16)
L OUT
LEVEL SHIFT
CIRCUIT
J
(Page 16)
SL OUT
J699
J449
L
R
FRONT
L
R
SURROUND
LEVEL SHIFT
CIRCUIT
H
(Page 16)
C OUT
R-CH
SR-CH
RY449
RY549
RY699
RY807
RELAY
DRIVE
Q826
J111
AUDIO SELECTOR
IC111
27 6.1L
36 6.1SL
40 6.1C
3
6.1SB
32 6.1SW
37
COUT
24
LOUT
29
SWOUT
34
30 D/ASW
33
SLOUT
22
DATA
21
CLK
23
LAT
38 D/AC
25 D/AL
20
VRIN
23
OUT
25
26
TRIM
13
CLK
17
LAT
16
DATA
CLK
LAT
DATA
20
VRIN
23
OUT
25
TRIM
26
TRIM
13
CLK
17
LAT
16
DATA
9
VRIN
6
OUT
4
TRIM
5
TRIM
CLK
LAT
DATA
13
CLK
17
LAT
16
DATA
CLK
LAT
DATA
20
VRIN
23
25
26
OUT
TRIM
TRIM
DATA
CLK
LAT
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
: AUDIO IN (ANALOG)
C
(Page 14)
2CHL
28 2CHL
FRONT
L
SURROUND
L
D/ASL
2
(SW)
BUFFER
IC602 (2/2)
BUFFER
IC402
BUFFER
IC602 (1/2)
BUFFER
IC502
ELECTRICAL
VOLUME
IC401
ELECTRICAL
VOLUME
IC601
ELECTRICAL
VOLUME
IC501
PRE OUT
MUTING
CONTROL
SWITCH
Q813
LINE AMP
IC521
LINE AMP
IC621 (1/2)
LINE AMP
IC621 (2/2)
SUB WOOFER
CENTER
LINE AMP
IC421
E
(Page 14)
L, SL,
C, W
C, W
W
SL
C
L
(DA1ES)
16
16
STR-DA1ES/DB780
5-4.
BLOCK DIAGRAM – POWER AMP Section –
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
+
–
TM501
PRE
DRIVE
DRIVE
BIAS
CIRCUIT
BIAS
Q431
BOOSTER
Q402
BOOSTER
Q403
G
6
13 14
15
3
2
5
POWER AMP
IC403
(Page 15)
L OUT
INPUT
–VEOUT
+VEOUT
NF
H
(Page 15)
C OUT
VCC VCC
VEE
PRE
DRIVE
DRIVE
BIAS
CIRCUIT
BIAS
Q531
BOOSTER
Q502
BOOSTER
Q503
J
6
13 14
3
2
5
POWER AMP
IC503
SYSTEM CONTROLLER
IC1601 (3/5)
(Page 15)
SL OUT
INPUT
–VEOUT
+VEOUT
NF
VCC VCC
VEE
15
AF POWER
SENSOR
Q434
CURRENT
DETECT
Q432, 433
AF POWER
SENSOR
Q634
CURRENT
DETECT
Q632, 633
AF POWER
SENSOR
Q534
CURRENT
DETECT
Q532, 533
70
25
67
72
68
69
REAR RELAY
HP DETECT
PROTECTOR
FRONT RELAY
71
CENTER RELAY
HEADPHONE RELAY
WOOFER RELAY
RELAY
DRIVE
Q823
RY806
R-CH
RELAY
DRIVE
Q808
RY448
RELAY
DRIVE
Q809
RY803
RELAY
DRIVE
Q807
RY801
D803
PHONES
CENTER
L
R
J849
+
+
–
–
TM449
–
–
+
+
R-CH
R-CH
SURROUND
L
R
13 14
15
POWER AMP
IC603
INPUT
–VEOUT
+VEOUT
NF
VCC VCC
VEE
BIAS
Q631
LIMITER SWITCH
Q791.795
AF POWER
PROTECTOR
Q802, 803,
Q805
FRONT
SPEAKERS
IMPEDANCE
USE 4-16Ω
SPEAKERS
IMPEDANCE
USE 4-16Ω
B+
LIMITER SWITCH
Q790
B–
OVER LOAD
DETECTOR
IC803, Q804
PRE
DRIVE
DRIVE
BIAS
CIRCUIT
11
9
12
BOOSTER
Q602
BOOSTER
Q603
K
(Page 15)
PRE RY
8
Click on the first or last page to see other STR-DA1ES / STR-DB780 service manuals if exist.