Read Sony HT-DDW890 / STR-K890 Service Manual online
21
21
STR-K890
STR-K890
4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –
D
C
MAIN BOARD
(4/4)
CNP913
(Page 27)
STANDBY
BOARD
CNP903
(Page 31)
B
MAIN BOARD
(4/4)
CNP912
(Page 27)
H
DISPLAY
BOARD
CNS101
(Page 29)
11
DIGITAL
BOARD
(2/5)
(Page 19)
14
DIGITAL BOARD
(5/5)
(Page 22)
6
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
1
3
4
5
6
7
8
9
9P
CNP503
PROTECTOR
FRONT_R
Y
C/REAR/SB_R
Y
H/P CTRL
H/P R
Y
WOOFER_R
Y
FRONT B_R
Y
B'ABLE_R
Y
CL025
CL026
CL027
CL028
CL029
CL030
CL031
CL032
CL033
CL022
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
SI-3004KWF
IC1903
0.47
C1021
0.47
C1031
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
19P
CNS514
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
NC (DC CONTROL)
TUNING_JOG B
TUNING_JOG A
AD1
SIRCS
AD2
VOL_A
TUNING_B
TUNING_A
VOL_B
+2.65V/+1.85V
+R4
56
60
59
58
2
b8
a4
97
a1
b3
b1
90
a9
88
94
99
a3
b6
a8
93
a2
89
b5
b7
a7
92
96
a5
98
a6
b4
b2
91
95
D1107~1111
MA111-TX
MA111-TX
DIGITAL BOARD
(4/5)
IC1903
IC1031
IC1904
+3.3V REG
+5V REG
+3.3V REG
W1000
1
3
2
1
3
2
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
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