Sony STR-DA7ES Service Manual page 68

STR-DA4ES/DA7ES/VA333ES
IC302 TC9274N-015 (INPUT BOARD)
IC303 TC9274N-015 (INPUT BOARD)
IC402 TC9274N-016 (E-VOL BOARD)
VSS 1
S1L 2
S2L 3
S3L 4
S4L 5
S5L 6
S6L 7
S7L 8
S8L 9
S9L 10
11
S10L
S11L 12
S12L 13
S13L 14
S14L 15
16
S15L
17
S16L
S17L 18
S18L 19
20
GND
LEVEL SHIFT & SHIFT REGISTOR
21
CLK
68
IC311 TC94A07 (INPUT BOARD)
IC411 TC94A07 (E-VOL BOARD)
TRIM VOLUME
VSS 1
0-+24dB/
1dB STEP
TRIM 2
DECODER
LATCH CIRCUIT
TRIM 3
TRIM 4
OUT 5
MAIN
VOLUME
0- –85dB/
1dB STEP
VRGND 6
DECODER
LATCH CIRCUIT
DECODER
IN 7 LATCH CIRCUIT
CS1 8
GND 9
CLK 10
42 VDD
41 S1R
40 S2R
39 S3R
38
S4R
37
S5R
36 S6R
35 S7R
34 S8R
33 S9R
32
S10R
31
S11R
30 S12R
29
S13R
28 S14R
27
S15R
26 S16R
25
S17R
24 S18R
23 LAT
22 DATA
TRIM VOLUME
0-+24dB/
1dB STEP
DECODER
& &
LATCH CIRCUIT
DECODER
& &
LATCH CIRCUIT
DECODER
& &
LATCH CIRCUIT
24 BIT
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
IC304 TC9273N-013 (INPUT BOARD)
VSS 1
S1 2
S2 3
S3 4
S4 5
S5 6
S6 7
S7 8
S8 9
S9 10
11
S10
12
S11
GND 13
CK 14
20 VDD
19 TRIM
18 TRIM
17 TRIM
16 OUT
MAIN
VOLUME
0- –85dB/
1dB STEP
15 RGND
14 IN
13 CS2
12 LAT
11 DATA
10 BIT
LATCH
LEVEL SHIFT & SHIFT REGISTOR
28 VDD
27 S1
26 S2
25 S3
24 S4
23
S5
22
S6
21 S7
20 S8
19 S9
18
S10
17
S11
16 STB
15 DATA