Sony STR-DB870 Service Manual

STR-DB870/DB1070
3838
• Waveforms
– 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
13S12 30 S12
14S13 29 S13
15S14 28 S14
16S15 27 S15
17S16 26 S16
19S18 24 S18
18S17 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

Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English