Schematic Diagram - Digital Board (4/5) - Sony STR-K990 Service Manual

STR-K990
4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –
1 2
A
B
DIGITAL BOARD
C
6 2
DIGITAL
BOARD
(1/5)
(Page 19)
D
56
E
59
11
58
DIGITAL
60
BOARD
(2/5)
(Page 20)
F
STR-K990
3 4
MAIN BOARD STANDBY
(4/4) BOARD
CNP913 CNP903
D
(Page 28) (Page 32)
CNP503
8P
(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 28)
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 23)
22 22
8 9
+3.3V REG
3.3
FB1308 0uH
R1179 10k
VOL_A
R1180 10k
VOL_B
R1088 10k
SIRCS
AD2
AD1
R1184 10k
R1183 10k
R1181 10k
R1182 10k
a5 a4 a6 97 99 98 a9 b1 b2 b3 a2 a7 a8 b5
10 11
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
CNS100
7 AD1
CL030
(Page 30)
6 FL_LAT
CL031
5 FL_DIN
CL032
4 FL_CLK
3 INPUT_JOG_4A
2 INPUT-JOG_4B
1 DCAC_IN
CNS513
17P
No mark:FM
b4 b6 b8