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

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