Sony STR-DA1000ES / STR-DB790 Service Manual ▷ View online
17
STR-DA1000ES/DB790
SECTION 5
ELECTRICAL ADJUSTMENT
BIAS ADJUSTMENT
Condition:
input signal: no signal (no load)
volume:
input signal: no signal (no load)
volume:
minimum
Connection
Procedure:
1.
1.
Connect a digital voltmeter to the CN432 (CN482, CN532,
CN582, CN632, CN682) on the MAIN board or CN732 on the
SBL board (STR-DA1000ES only).
CN582, CN632, CN682) on the MAIN board or CN732 on the
SBL board (STR-DA1000ES only).
2.
Press the
I
/1
button to turn on the main power.
3.
Adjust the RV431 (RV481, RV531, RV581, RV631, RV681)
on the MAIN board or RV731 on the SBL board (STR-
DA1000ES only) so that the digital voltmeter reading is 2
on the MAIN board or RV731 on the SBL board (STR-
DA1000ES only) so that the digital voltmeter reading is 2
±
0.5
mV.
Note:
When the adjusting voltage is higher than 2
±
0.5 mV, adjust the
voltage to the minimum voltage.
Adjustment and Connection Loacation:
+
–
–
digital voltmeter
CN432 (CN482, 532, 582, 632, 682, 732) pin
1
CN432 (CN482, 532, 582, 632, 682, 732) pin
2
RV734
– SBL BOARD (Component Side) –
CN732
1
2
– MAIN BOARD (Component Side) –
RV431
CN432
2 1
RV481
RV631
RV681
RV531
RV581
CN482
CN632
CN682
CN532
CN582
2 1
2 1
2 1
2 1
2 1
Ver 1.2
18
STR-DA1000ES/DB790
MEMO
STR-DA1000ES/DB790
19
19
6-1.
BLOCK DIAGRAM – TUNER/VIDEO Section –
SECTION 6
DIAGRAMS
• SIGNAL PATH
: TUNER
A
(Page 23)
DATA,
CLK
CLK
FM
AM
8
L CH
10
R CH
13
FM SIG OUT
14
RDS-INT
15
RDS-DATA
58
SW3
57
SW4
59
SW2
60
SW1
2
ST-DO
4
CE
3 ST-DI
1 CLK
7
STEREO
11
MUTE
6
TUNED
(DB790: AEP, UK)
TU301
TUNER UNIT
53 RDS DATA
RDS SIGNAL
RDS CLOCK
78 SLATCH
73 TUNED
74 STEREO
75 MUTE
40
76 DO
52
SYSTEM CONTROLLER
IC1601 (1/6)
B
(Page 21)
TUNER-L
FM 75Ω
COAXIAL
AM
R-CH
: VIDEO
ANTENNA
SW4
SW3
SW2
SW1
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
D302
D301
D851
D850
J1091 (1/2)
VIDEO 3
INPUT
VIDEO
VIDEO
TV/SAT IN
DVD IN
VIDEO 2 IN
VIDEO 2 OUT
J305
J304
VIDEO
VIDEO
VIDEO
VIDEO 1 IN
VIDEO 1 OUT
J1092
J852 (2/2)
J850 (2/2)
J850 (1/2)
J852 (1/2)
C
Y
C
Y
C
Y
C
Y
C
Y
J302
VIDEO SELECTOR
IC301
Y SWITCH
IC851
C SWITCH
IC850
VIDEO 3
INPUT
S-VIDEO
S-VIDEO
TV/SAT IN
S-VIDEO
DVD IN
S-VIDEO
VIDEO 1 IN
VIDEO
MONITOR OUT
V1. OUT
V1. IN
V2. IN
V2. OUT
TV
LD
V3
M. OUT
SW5
SW1
SW2
SW3
SW4
S-VIDEO
VIDEO 1 OUT
SW4
SW1
SW2
SW3
P
B
/C
B
/B-Y
P
R
/C
R
/R-Y
P
B
/C
B
/B-Y
P
R
/C
R
/R-Y
J351 (1/2)
Y
Y
J351(2/2)
Y
COMPONENT
VIDEO
TV/SAT IN
COMPONENT
VIDEO
DVD IN
P
B
/C
B
/B-Y
P
R
/C
R
/R-Y
COMPONENT
VIDEO
MONITOR OUT
C
Y
J851
S-VIDEO
MONITOR OUT
RY850
-2
-1
VIDEO BUFFER
Q372
10
13
4
15
VIDEO SYNC
SEPARATOR
SEPARATOR
IC370
4
1
7
16
CLOCK
GENERATOR
IC371
X370
7.5795MHz
C SYNC BUFFER
Q370
(DB790)
(DA1000ES)
RELAY
DRIVE
Q850, 851
SYNC SEPARATOR
IC852
Y SYNC BUFFER
Q371
RY352
-2
-1
RY354
RELAY
DRIVE
Q352
RY351
-2
-1
RY353
RELAY
DRIVE
Q351
VIDEO AMP
IC372
DATA
CLK
CLK
(DA1000ES)
• R-CH is omitted due to same as L-CH.
STR-DA1000ES/DB790
20
20
6-2.
BLOCK DIAGRAM – AUDIO DSP Section –
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
VIDEO
ANALOG
F
(Page 21)
BCKO,
LRCKO
G
(Page 21)
S MUTE
H
(Page 21)
SCLKO
LRCKO
BCKO
4
DIGITAL
CONTROL
DATA
DEMODULATOR
LOCK
DETECT
TIMING
MICON INTERFACE
CLOCK
INPUT
CIRCUOT
IC1102
J1101
J202
VIDEO 2 OUT
DVD IN
TV/SAT IN
L
L
L
VIDEO 2 IN
J1091 (2/2)
L
J201
L
L
L
DIGITAL AUDIO INTERFACE RECEIVER
IC1101
CLK
LAT
DATA
VIDEO SELECTOR
IC201
4
5
7
8
3
2
10
12
14
15
16
6
5
14
2
7
36 38 37
35
47
CKSEK1
DI
CE
CLK
DO
48
CKSEL1
B
A
DI
CLK
CE
DO
XMODE
XMODE
3
DIN0
16
DATAO
34
ERROR
14
BCK
15
LRCK
17
XSTATE
21
XOUT
22
XIN
24
AUDIO
X1101
12.288MHz
D1601
HDIN
HDCLK
99
ERROR
ANA/DIG
25
20
19
91 SELECT1
22 AD RST
92 SELECT2
94 CKSEL1
97 DI
95 CLK
96 CE
98 DO
93 XMODE
5
HACN
7
PM
4
HCS
18
HDOUT
2
GP9
21
GP12
1
DATA0
100
XSTATE
A
B
CKSEL1
DI
CLK
CE
DO
XMODE
SYSTEM CONTROLLER
IC1601 (2/6)
18 SDI1
30 SDI2
SDCLK
69
GP8
68
GP9
36
HCS
34
HCLK
33
HDIN
35
HDOUT
32
HACN
113
PM
6
XRST
2
XRST
22
KFSIO
37
AUDIO DIGITAL
SIGNAL PROCESSOR
IC1201
23
SDO1
24
SDO2
25
SDO3
19
LRCKO
20
BCKO
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
A
B
VIDEO 1 IN
VIDEO 1 OUT
VIDEO 3
INPUT
AUDIO
DIGITAL OPTICAL
RECEIVER
IC1104
DIGITAL OPTICAL
RECEIVER
IC1105
DIGITAL OPTICAL
RECEIVER
IC1106
OPTICAL
DVDIN
DIGITAL OPTICAL
RECEIVER
IC1081
DIGITAL
OPTICAL
OPTICAL
TV/SAT IN
OPTICAL
MD/TAPE IN
OPTICAL
MD/TAPE OUT
DIGITAL OPTICAL
TRANSCEIVER
IC1107
DIGITAL SELECTOR
IC1103
28 LRCKI2
15 LRCKI1
29 BCKI2
17 BCKI1
59 EXLOCK
MUTING
SWITCH
SWITCH
Q1602
MUTING
SWITCH
SWITCH
Q1601, 1603
4
DIN1
5
DIN2
2
DOUT
9
MCLK1
12
MCLK2
X1201
13.5MHz
EEPROM
IC1604
5
34
6
33
SDA
SCL
SDA
SCL
82
X0
83
X1
X1601
16MHz
COAXIAL IN
ASSIGNABLE
DVD
CD/SACD
108, 107, 105 – 102,
99, 98, 80 – 77,
75 – 72
112, 110, 109,
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
67
GP10
SIGNAL-END
DEFERENTIAL
CONVERTER
DIGITAL
∑
MODULATOR
SERIAL I/O
INTERFACE
CLOCK/
TIMING CONTROL RESET
/POWER CONTROL
A/D CONVERTER
IC1401
15
14
BCK
16
SYSCLK
1
DOUT
LIN
6
RSTB
13
LRCK
BUFFER
IC1402
20
XMCK
C
(Page 23)
DATA, CLK, LAT
32
LRCK SW
3
BST
56
BST
6
2
5
1
SIGNAL
SELECTOR
IC1204
D1101
SDO3
E
(Page 21)
SDO1, SDO2,
SDO3, SDO4
D
(Page 21)
SOURCE-L
SDO2
26
SDO4
SDO2
SDO1
SWITCHING
IC1503
13
CKOUT
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