Sony STR-DA3100ES Service Manual page 68

STR-DA3100ES
• IC Block Diagrams
– E-VOL Board –
IC401 ADM3222ARU-REEL
NC 11
T2IN 12
T1IN 13
NC 14
R1OUT 15
R1IN 16
T1OUT 17
GND 18
VCC 19
SD 20
IC403-406 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
CS1 11
GND 12
CLK 13
NC 14
STR-DA3100ES
10 R2OUT
R2 9 R2IN
T2 8 T2OUT
7 V-
T1
6 C2-
R1
5 C2+
4 C1-
3 V+
2 C1+
VCC
1 EN
28 NC
TRIM VOLUME
0-+24dB/ 26 VDD
1dB STEP
26 TRIM
5 to 25 DECODER
& &
LATCH CIRCUIT
25 TRIM
24 TRIM
23 OUT
MAIN
VOLUME
0- –95dB/
0.5dB STEP
22 VRGND
4 to 13 DECODER
& &
LATCH CIRCUIT
21 NC
4 to 16 DECODER
& &
LATCH CIRCUIT 20 VRIN
24 BIT 19 NC
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
18 CS2
CIRCUIT
17 LAT
16 DATA
15 NC
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
GND
CK
– DIGITAL Board –
CE 37
CL 38
XSEL 39
MICROCOMPUTER
MODE0 40
INTERFACE
MODE1 41
DGND 42
DVDD 43
DOSEL0 44
DOSEL1 45
CKSEL0 46
CKSEL1 47
XMODE 48
68 68
IC402 TC9274N-016
1 42 VDD
2 40 S1
3 40 S2
4 39 S3
5 38 S4
6 37 S5
7 36 S6
8 35 S7
9 34 S8
10 33 S9
18BIT 18BIT
LATCH LATCH
11 32 S10
CIRCUIT CIRCUIT
(L-CH) (R-CH)
12 31 S11
13 30 S12
14 29 S13
15 28 S14
16 27 S15
17 26 S16
18 25 S17
19 24 S18
20
23 STB
21 LEVEL SHIFT & SHIFT REGISTER
22 DATA
IC2121 LC89056W-E
36 35 34 33 32 31 30 29 28 27 26 25
C BIT PA/PB 24 AUDIO
DETECT DETECT
23 EMPHA
SAMPLING
FREQUENCY
22 XIN
LOCK 21 XOUT
X' TAL
DETECT
20 XMCK
19 DVDD
18 DGND
17 XSTATE
16 DATAO
15 LRCK
DATA
TIMING 14 BCK
DEMODULATOR
13 CKOUT
PLL
INPUT
CIRCUIT
1 2 3 4 5 6 7 8 9 10 11 12