Sony STR-K980 Service Manual page 38

STR-K980
Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams
– DIGITAL Board –
IC1301 LC89056W-E
36 35
CE 37
CLK 38
MICROCOMPUTER
INTERFACE
XSEL 39
MODE0 40
MODE
MODE1 41 SELECT
DGND 42
DVDD 43
DOSEL0 44
DOSEL1 45
CKSEL0 46
CKSEL1 47
SYSTEM
XMODE 48
RESET
1 2 3
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC1401 PCM1800E
24 23 22 21 20 19
DIGITAL ∑
MODULATOR
DIGITAL ∑
MODULATOR
SINGLE-END SINGLE-END
DEFERENTIAL REFERENCE DEFERENTIAL
CONVERTER CONVERTER
1 2 3 4
w w w
STR-K980
34 33 32 31 30 29 28 27 26 25
C BIT PA/PB 24 AUDIO
DETECT DETECT
23 EMPHA
SAMPLING
FREQUENCY
22 XIN
21 XOUT
LOCK CLOCK
DETECT
20 XMCK
19 DVDD
18 DGND
17 XSTATE
16 DATAO
15 LRCK
DATA
TIMING 14 BCK
DEMODULATOR
13 CKOUT
PLL
INPUT
CIRCUIT
4 5 6 7 8 9 10 11 12
18 17 16 15 14 13
1/64
SERIAL I/O
DECIMATION
INTERFACE
FILTER
&
&
MODE/FORMAT
LOW-CUT
CONTROL
FILTER
CLOCK/
TIMING CONTROL RESET/
POWER CONTROL
5 6 7 8 9 10 11 12
x a o
. i
http://www.xiaoyu163.com
IC1601, IC1602 SN74HC595ANSR
QB
1
QC 2
QD 3
QE 4
Q Q
3 7 6
QF 5
QG 6
QH 7
GND 8
u 1 6 3
y
38 38
http://www.xiaoyu163.com
2 4
8 9 9
3R
1D
C3
C1
3S R
3R 2S
2R
C3
C2
3S R
3R 2S
2R
C3
C2
3S R
3R 2S
2R
C3
C2
3S R
3R 2S
2R
3 1 5 1 5 0 8 9 2
C3
C2
3S R
3R 2S
2R
C3
C2
3S R
3R 2S
2R
C3
C2
3S R
3R 2S
2R
C3
C2
3S
R
IC1503 TC7WH157FU
1A 1 8 Vcc
m
1B 2 7 1Y
c o
2Y 3 6 2B
. GND 2A
4 5
2
8 9 9
16 VCC
QA
15
14 S-IN
OE
13
12 LAT
11 CLK
RST
10
4 9 8 2 9 9
9 S-OUT