Sony STR-DB780 Service Manual

1414
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
1415 16
12
AUDIO SELECTOR
IC151
VIDEO SELECTOR
IC201
25
24
22
21
26
27
19
17
1415 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
2019
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
23SDO1
24SDO2
25SDO3
19LCKO
20BCKO
14SCKOUT
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
: AUDIO IN (ANALOG)
: AUDIO IN (DIGITAL)
AB
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
Q1601
MUTING
SWITCH
Q1602
MD/TAPE
PHONO
EQ AMP
IC131
4
DIN1
5
DIN2
2
DOUT
9
MCLK1
12
MCLK2
X1201
13.6MHz
EEPROM
IC1604
534
633
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
617
CS WE
4445
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
9
SDTO
INPUT
CIRCUIT
67GP10
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

Sony STR-DB780 Specifications

General

Type	Stereo Receiver
Total Harmonic Distortion	0.09 %
Digital inputs	2 Optical, 1 Coaxial
Weight	10.5 kg
Video inputs	composite
Video outputs	1 composite, 1 S-Video
Output Power	100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio	96 dB (Line in)
Input Sensitivity	150 mV (Line in)