Sony STR-DB2000 Service Manual

69
STR-DA2000ES/DB2000
• IC Block Diagrams
– 2CH. AU Board –
IC151 TC9273N-004
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
IC171 TC9273N-013
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
IC652 CXD9725MIC201 TC9273N-014
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
TRIM VOLUME
0-+24dB/
1dB STEP
TRIM VOLUME
0-+24dB/
1dB STEP
5 to 25 DECODER
&
LATCH CIRCUIT
4 to 13 DECODER
&
LATCH CIRCUIT
4 to 16 DECODER
&
LATCH CIRCUIT
24 BIT
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
5 to 25 DECODER
&
LATCH CIRCUIT
4 to 13 DECODER
&
LATCH CIRCUIT
4 to 16 DECODER
&
LATCH CIRCUIT
2VSS
3TRIM
4TRIM
5TRIM
6OUT
7VRGND
9VRIN
8NC
11CS1
10NC
14NC
1NC
12GND
13CLK
26 TRIM
25 TRIM
24 TRIM
23 OUT
22 VRGND
20 VRIN
21 NC
28 NC
18 CS2
19 NC
15 NC
17 LAT
16 DATA
26 VDD
MAIN
VOLUME
0- –95dB/
0.5dB STEP
MAIN
VOLUME
0- –95dB/
0.5dB STEP

Sony STR-DB2000 Specifications

General

Brand	Sony
Model	STR-DB2000
Category	Stereo Receiver
Language	English