Sony STR-DB1070 / STR-DB870 Service Manual ▷ View online
STR-DB870/DB1070
45
45
CN1
EB1
D51
CN3
D52
D54
D55
R53
C53
D53
D57
D56
C51
C54
R52
R51
CN51
R58
R54
R56
C55
EB51
CN910
JW901
CN911
CN906
R908
C912
CN907
D907
CN908
C909
C906
R904
D902
D913
D912
R905
R906
Q904
R903
C905
D908
D904
C903
C902
D903
D905
D906
C907
C901
D901
Q902
C904
R902
CN901
C915
C916
C919
F905
F906
R912
R911
D914
Q903
Q905
CN903
CN904
CN905
S901
C908
Q54
Q53
Q52
R57
C52
RY1
Q51
T2
JW3
F1
F2
CN2
JW1
JW2
CNJ1
CN49
F49
VS49
CN48
D58
R1
CN909
R913
C917
C918
CN902
R55
T901
C56
F903
F904
R909
R910
2P
1SS133T
4P
1SS133T
11EQS04
11EQS04
680
0.056
1SS133T
11EQS04
11EQS04
2200
10V
1000
16V
10k
2.2k
5P
100
47k
10k
0.47
50V
4P
3P
6P
10k
47
16V
3P
RD5.6F-T7B2
3P
330
63V
63V
47
50V
10k
MTZJ-39
11ES2
11ES2
10k
2.2k
2SA1115
2.2k
47
16V
RBV-402
11ES2
1000
35V
2200
35V
11ES2
11ES2
11ES2
4700
16V
47
16V
MTZJ-5.6B
2SB1241
47
50V
22k
3P
0.1
200V
8A
125V
8A
125V
1
1W
1
1W
RBV-602
2SD1863
2SA1115
9P
5P
3P
1000
16V
2SC2785
BA1A4M
2SA1015
10k
0.0047
2SC2785
2P
4P
T4AL
250V
250V
5P
11ES2
3.3M
1/2W
1/2W
5P
150
7P
33k
470p
*
*
*
*
*
*
*
*
*
*
H-A
H-B
L-A
L-B
O-B
O-A
GND
GND
O-B
O-A
GND
H-A
H-B
L-A
L-B
GND
P.RY
GND
STOP
8V
SUB,T
(CHASSIS)
(CHASSIS)
+B
-B
CT GND
B GND
RY GND
GND
24V(RY)
+24V
-24V
GND
P.RY
GND
FL GND
D.GND
V.POWER
8V
STOP
STOP
GND
-5V
8V
SUB,T
*
C915,916
12000 71V
15000 71V
(DB870)
(DB1070)
1
2
3
4
(US,CND)
(AEP,UK,E,CH)
(US,CND)
(AEP,UK,E,CH)
1
2
3
4
Q902,904
-5V REGULATOR
+32V
REGULATOR
V POWER
SWITCH
FL1
FL2
+32V
+8V
PW_RY
SUB T
-1
-2
8
Ω
4
Ω
IMPEDANCE
SELECTOR
AC POWER
DETECT
SUB TRANS
ON/OFF
+8V
SWITCH
POWER RELAY
DRIVE
*
F1
10A 125V
T4AL 250V
(US,CND)
(AEP,UK,E,CH)
*
10A 125V
(US,CND)
F2
T2.5AL 250V
POWER
TRANSFORMER
(EXCEPT E2,E3)
(E2,E3)
AC IN
AC OUTLET
(1)
(2)
(3)
(4)
POWER
TRANSFORMER
-1
-2
-3
VOLTAGE
SELECTOR
240V
220V
120V
(E2,E3)
(US,CND)
(US,CND,E2,E3,TW,CH)
(AEP,UK,E,CH)
(US,CND)
*
C917,918
0.033 250V
0.015 100V
(US,CND)
(AEP,UK.E,CH)
(EXCEPT E2,E3,TW)
(E2,E3,TW)
(AEP,UK,MY,SP,KR,CH)
*
(US,CND)
F903,904
4A 125V
4A 250V
(EXCEPT US,CND)
*
R909,910
47
2.2
(CND)
(EXCEPT CND)
6-30. SCHEMATIC DIAGRAM – POWER SUPPLY Section –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
(Page 36)
(Page 27)
(Page 36)
(Page 23)
STR-DB870/DB1070
46
46
• Waveforms
– DIGITAL Board –
– DIGITAL Board –
1
IC1303
qf
(XO)
2
IC1410
1
3
IC1601
<zc.>
(MCLK2)
4
IC1703
tj
(X1)
5
IC1501
qd
(MCLK2)
qs
IC304
qd
– VIDEO Board –
qa
IC304
qa
1.3 Vp-p
231 ns
4 Vp-p
71 ns
3.9 Vp-p
40.4 ns
4 Vp-p
57.7 ns
3.7 Vp-p
74 ns
3.8 Vp-p
60 ns
3.8 Vp-p
74 ns
• IC Block Diagrams
IC101
TC9274N-016 (MAIN board)
1
2
3
4
5
6
7
8
9
10
11
12
20
21
42
40
40
39
38
37
36
35
34
33
32
31
23
22
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
18BIT
LATCH
CIRCUIT
(R-CH)
18BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
13
S12
30 S12
14
S13
29 S13
15
S14
28 S14
16
S15
27 S15
17
S16
26 S16
19
S18
24 S18
18
S17
25 S17
IC102
TC9273N-004 (MAIN Board)
IC105
TC9273N-013 (MAIN Board (STR-DB1070))
IC201
TC9273N-014 (VIDEO AU Board)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
10BIT
LATCH
CIRCUIT
(R-CH)
10BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
IC303
TC74HC4053AP (VIDEO Board (US and Canadian models))
16
15 14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
B
A
OX
IX
X-COM
Y-COM
VCC
GND
VEE
INH
OZ
Z-COM
IZ
OY
IY
C
OUT
IN
C
OUT
IN
C
OUT
IN
C
OUT
IN
C
OUT
IN
C
OUT
IN
LOGIC LEVEL CONVERTOR
IC305
BA7622 (VIDEO Board (STR-BD1070))
1
2
3
4
8
7
6
5
GND
IN1
IN2
IN3
OUT1
OUT2
OUT3
VCC
75OHM
DRIVER
75OHM
DRIVER
75OHM
DRIVER
47
STR-DB870/DB1070
IC307
MB90089F-G-238-BND (VIDEO Board (STR-DB1070))
IC308
NJM2296D (VIDEO Board)
IC750, 752
NJM2296D (S-VDIEO Board)
IC309, 311
LA7213 (VIDEO Board
(STR-DB1070: AEP, UK, E and Chinese models))
ANALOG
SWITCH
SERIAL
INPUT
CONTROL
VIDEO
SIGNAL
GENERATOR
CIRCUIT
4 FSC
CLOCK
OSCILLATOR
CIRCUIT
FOR
COLOR
BURST
BURST
DATA
OUTPUT
CONTROL
NTSC/PAL
SIGNAL GENERATOR
CIRCUIT
H/V
SEPARATE
CIRCUIT
DISPLAY
MEMORY
CONTROL
CGROM
CHARACTER
VRAM
VIDEO PHASE SYNC
YIN
CIN
VIN
HSYNC
VSYNC
EXS
VBLK
FSCO
AVCC
XS
EXHSYN
EXVSYN
VSS
1
2
3
10
11
8
6
5
4
9
12
13
14
YOUT
AVSS
COUT
VOUT
CS
SIN
SCLK
VOC0
VOC1
VOC2
VOB
XD
EXD
27
26
25
28
24
23
22
20
19
18
17
16
15
VCC
7
TEST
21
DOT-CLOCK
GENERATOR
CIRCUIT
9
S5
S6
S7
S4
S1
S2
S3
Vout1
Vout2
Vout3
V-
GND
SW3
SW2
SW1
SW5
SW4
Vin1
Vin2
Vin3
Vin4
Vin5
V+
10
11
12
13
14
15
16
1
5
2
3
4
6
7
8
1
SYNC
SEP
V-SYNC
SEP
2
3
4
5
V IN
HD
VSS
VD
VDD
IC403, 503, 603
µPC2581V (MAIN Board (IC603: STR-DB1070))
2
3
5
4
6
7
9
8
1
MUTE
+ VOUT1
– VOUT1
COMP1
MF1
IN1
GND
IN2
NF2
COMP2
– VOUT2
+ VOUT2
VCC1
VCC2
VEE
PROTECTOR
BIAS CIRCUIT
REG
DRIVE
PRE
DRIVE
11
10
12
13
15
14
DRIVE
PRE
DRIVE
48
STR-DB870/DB1070
IC401, 501, 601, 701
TC94A07P (MAIN Board)
TRIM VOLUME
0-+24dB/
1dB STEP
TRIM VOLUME
0-+24dB/
1dB STEP
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
24 BIT
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
1
VSS
2
TRIM
3
TRIM
4
TRIM
5
OUT
6
VRGND
7
IN
8
CS1
9
GND
10
CLK
19 TRIM
18 TRIM
17 TRIM
16 OUT
15 RGND
14 IN
13 CS2
12 LAT
11 DATA
20 VDD
MAIN
VOLUME
0- –85dB/
1dB STEP
1dB STEP
MAIN
VOLUME
0- –85dB/
1dB STEP
1dB STEP
IC751
NJM2145D
(S-VIDEO Board (US and Canadian models))
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
INH
INH
INPUT
CIRCUIT
OUTPUT
CIRCUIT
CIRCUIT
OUTPUT
CIRCUIT
CIRCUIT
OUTPUT
CIRCUIT
CIRCUIT
VCC
OUT1
IN4
IN3
IN2
OUT3-1
OUT3-2
OUT3-3
GND
INH1
INH2
IN1
NC
OUT2-1
OUT2-2
OUT2-3
IC1101
PCM1800E/2K (DIGITAL Board)
SINGLE-END
DEFERENTIAL
CONVERTER
REFERENCE
SINGLE-END
DEFERENTIAL
CONVERTER
DIGITAL
∑
MODULATOR
DIGITAL
∑
MODULATOR
1/64
DECIMATION
FILTER
&
LOW-CUT
FILTER
CLOCK/
TIMING CONTROL RESET/
POWER CONTROL
SERIAL I/O
INTERFACE
&
MODE/FORMAT
CONTROL
LIN
V REF 1
REFCOM
V REF 2
RIN
RSTB
FMT0
BYPASS
FMT1
MODE1
MODE0
FSYNC
1
2
3
4
5
6
8
7
9
11
10
12
AGND
VCC
C PR
C NR
C PR
C NR
DGND
SYSCL
K
DOUT
BCK
LRCK
VDD
24
23
22
21
20
19
17
16
15 14 13
18
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