Schematic Diagram - Digital Board (4/5) - Sony STR-K890 Service Manual

Q Q
4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –
3 7 6 3 1 5 1 5 0
1 2
A
B
DIGITAL BOARD
C
6
2
DIGITAL
BOARD
(1/5)
T E
L 1 3 9 4 2 2 9 6 5 1 3
(Page 18)
D
56
E
59
11
58
DIGITAL
60
BOARD
(2/5)
(Page 19)
F
w w w
STR-K890
3 4
MAIN BOARD
(4/4)
CNP913
D
(Page 27)
(4/5)
D1107~1111
MA111-TX
+R4
+2.65V/+1.85V
88 91 90 94 a1 89 92 95
x a o
y
. i
http://www.xiaoyu163.com
5 6
STANDBY MAIN BOARD
(4/4)
BOARD
CNP903 CNP912
C B
(Page 31) (Page 27)
CNP503
CNP505
9P 7P
CL025
IC1904
BA33BC0FP-E2
D1001
1SR154-400TE-25
7.9
1 VCC
GND
C1021
0.47
IC1031
IC1031
BA50BC0FP-E2
+5V REG
8.5
1 OUT
VCC
GND
2
C1031
0.47
Q Q
3 7 6
W1000 IC1903
+3.3V REG
IC1903
SI-3004KWF
1 2 3 4 5
C1908
C1905
0.1
C1906
470
10V
93 a3 96
DIGITAL BOARD
14
u 1 6 3
21 21
http://www.xiaoyu163.com
2 4
8 9 9
7 8 9
IC1904
+3.3V REG
R1183 10k
3.3
OUT 3
R1184 10k
2
C1022
470
10V
FB1308 0uH
5
3
R1179 10k
R1180 10k
C1032
470
R1088 10k
10V
3 1 5 1 5 0 8 9
R1181 10k
R1182 10k
470
10V
b7 a5 a4 a6 97 99 98 a9 b1 b2 b3 a2 a7
(5/5)
(Page 22)
m
c o
.
STR-K890
2
8 9 9
10 11
TUNING_A
19 TUNING_JOG A
TUNING_B
18 TUNING_JOG B
17 NC (DC CONTROL)
CL033
16 GND
15 GND
CL028
14 +3.3V(STDBY)
CL029
13 +5V
VOL_A
12 VOL_JOG_2A
VOL_B
11 VOL_JOG_2B
H
10 PW_SW
2 4 SIRCS 9 8 2 9 9
9 SIRCS
DISPLAY
AD2
8 AD2
BOARD
AD1
CNS101
7 AD1
CL030
(Page 29)
6 FL_LAT
CL031
FL_DIN
5
CL032
4 FL_CLK
3 INPUT_JOG_4A
2 INPUT-JOG_4B
1 DCAC_IN
CNS514
19P
No mark:FM
a8 b5 b4 b6 b8