Sony STR-DB2000 Service Manual page 69

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• IC Block Diagrams
– 2CH. AU Board –
IC151 TC9273N-004
VSS 1
S1 2
S2 3
S3 4
S4 5
S5 6
10BIT
S6 7 LATCH
CIRCUIT
(L-CH)
S7 8
S8 9
S9 10
S10 11
S11 12
GND 13
LEVEL SHIFT & SHIFT REGISTER
CK 14
TE
L 13942296513
IC201 TC9273N-014
VSS 1
S1 2
S2 3
S3 4
S4 5
S5 6
10BIT
S6 7 LATCH
CIRCUIT
(L-CH)
S7 8
S8 9
S9 10
S10 11
S11 12
GND 13
LEVEL SHIFT & SHIFT REGISTER
CK 14
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28 VDD
27 S1
26 S2
25 S3
24 S4
23 S5
10BIT
LATCH 22 S6
CIRCUIT
(R-CH)
21 S7
20 S8
19 S9
18 S10
17 S11
16 STB
15 DATA
28 VDD
27 S1
26 S2
25 S3
24 S4
23 S5
10BIT
LATCH 22 S6
CIRCUIT
(R-CH)
21 S7
20 S8
19 S9
18 S10
17 S11
16 STB
15 DATA
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2 9
8
IC171 TC9273N-013
VSS 1
S1 2
S2 3
S3 4
S4 5
S5 6
S6 7
CIRCUIT
S7 8
S8 9
S9 10
S10 11
S11 12
GND 13
LEVEL SHIFT & SHIFT REGISTER
CK 14
Q Q
3 6 7 1 3 1 5
IC652 CXD9725M
NC 1
TRIM VOLUME
VSS 2
0-+24dB/
1dB STEP
TRIM 3
5 to 25 DECODER
LATCH CIRCUIT
TRIM 4
TRIM 5
OUT 6
MAIN
VOLUME
0- –95dB/
0.5dB STEP
VRGND 7
4 to 13 DECODER
LATCH CIRCUIT
NC 8
4 to 16 DECODER
VRIN 9 LATCH CIRCUIT
NC 10
co
CS1 11
GND 12
.
CLK 13
NC 14
STR-DA2000ES/DB2000
9 4 2 8
28 VDD
27 S1
26 S2
25 S3
24 S4
23 S5
10BIT 10BIT
LATCH LATCH 22 S6
CIRCUIT
(L-CH) (R-CH)
21 S7
20 S8
19 S9
18 S10
17 S11
16 STB
15 DATA
0 5 8 2 9 9 4 2 8
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
m
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
9 9
9 9
28 NC
26 VDD
26 TRIM
25 TRIM
24 TRIM
23 OUT
MAIN
VOLUME
0- –95dB/
0.5dB STEP
22 VRGND
21 NC
20 VRIN
19 NC
18 CS2
17 LAT
16 DATA
15 NC
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