Sony STR-K685, Service Manual

Page: 21 / 52

21 21
STR-K685
STR-K685
4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –
D C
MAIN BOARD
(3/4)
CNP504
(Page 27)
STANDBY
BOARD
CNP801
(Page 26)
H
DISPLAY
BOARD
CNS102
(Page 30)
11
DIGITAL
BOARD
(2/5)
(Page 19)
14
DIGITAL BOARD
(5/5)
(Page 22)
15
DIGITAL
BOARD
(1/5)
(Page 18)
3.3 8.5 2.6
7.9
8.5
3.3
5
No mark:FM
100
R1129
10k
R1105
10k
R1186
10k R1179
10k R1180
10k R1088
10k R1182
10k R1181
10k R1183
10k R1184
1SR154-400TE-25
D1001
0.1
C1905
10V
470
C1906
10V
470
C1908
0uH FB1308
CL025
CL026 CL027
CL028
CL029
CL030
CL031
CL032
CL033
CL021
VCC
GND
OUT
BA33BC0FP-E2
IC1904
VCC
GND
OUT
BA50BC0FP-E2
IC1031
D1109
D1108
D1111
D1110 D1107
1 2 3 4 5 6 7
7P
CNP505
+R2 STOP STDBY GND +9V (STDBY) PW_R
Y
+R4 R4 GND
10V
470
C1022
10V
470
C1032
1 2 3 4 5
IC SI-3008KWFE
IC1901
0.47
C1021
0.47
C1031
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CNS513
DCAC_IN
INPUT-JOG_4B
INPUT_JOG_4A
FL_CLK
FL_DIN
FL_LAT
AD1
AD2
SIRCS
PW_SW
VOL_JOG_2B
VOL_JOG_2A
+5V
+3.3V(STDBY)
GND
GND
DC_CONTROL
AD1
SIRCS
AD2
VOL_A
VOL_B
+2.65V/+1.85V
+R4
56
60
59
58
b8 a4 97 b3 b1 90 a9 a1 94 99 a3 b6 a8 93 a2 b9 89 b5 b7 a7 92 96 a5 98 a6 b4 b2 91 95
D1107-1111
MA111-TX
DIGITAL BOARD
(4/5)
IC1901
IC1031
IC1904
+3.3V REG
+5V REG
+3.3V REG
W1000
1 3
2
1 3
2
1 2 3 4 5
5P
CNP506
PROTECTOR FRONT_RY C/REAR/SB_R
Y
H/P CTRL H/P_RY
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G