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Kenwood DV-402 Service Manual page 10

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K
L
MAIN BOARD
Q Q
3 7 6 3 1 5 1 5 0
+3.3V
R289
100
RA212
3.11V
47
3.1V
IC201
MPEG
T E
L
1 3 9 4 2 2 9 6 5 1 3
#55, #57
#62~64: Refer to
waveform on page6.
3.1V
0V
4.0V
3.0V
3.1V
3.2V
(0.4)
5.1V
w w w
+3.3V
+5V
M
N
+8V
+3.3V
+12V
+5V
+3.3V
IC204
2.6V
1
14
3.1V
A0
VCC
2
13
2.2V
Q0
A3
3
12
2.6V
A1
Q3
RA213
2.6V
4
11
47
Q1
A4
5
10
A2
Q4
6
9
Q2
A5
0V
7
8
GND
Q5
104
3.1V
MEMCLKM
103
GND
102
3.11V
VDD
+3.3V
101
3.1V
DO(7)
101
100
3.1V
DO(6)
100
99
3.1V
DO(5)
99
98
3.1V
DO(4)
98
97
3.1V
DO(3)
RA214
96
GND
47
95
3.11V
VDD
+3.3V
+3.3V
97
94
3.1V
DO(2)
94
93
3.1V
DO(1)
93
92
3.1V
DO(0)
92
R356 47
R363 47K
RA215 47
R355 47
R362 47K
91
0V
DQWL
90
3.1V
R354 47
R361 47K
SDWE
89
3.1V
R353 47
R360 47K
SDCAS
3.1V
R352 47
R359 47K
88
SDRAS
87
3.12V
GND
86
VDD
+3.3V
85
3.1V
R349 47
R357 47K
SDCS(1)
R351 47
R358 47K
84
3.1V
SDCS(0)
R350 47
83
3.1V
AD(11)
82
3.1V
AD(10)
81
3.1V
AD(3)
81
80
3.1V
AD(2)
80
79
3.1V
AD(1)
79
78
3.1V
AD(0)
78
77
GND
RA211 47
76
2.6V
R286 47
MEMCLKOUT
83
75
3.11V
VDD
+3.3V
82
74
3.1V(0V)
AD(9)
74
73
3.1V(0V)
AD(8)
73
72
3.1V
RA216 47
AD(7)
72
71
3.1V
AD(6)
71
70
3.1V
AD(5)
70
69
3.1V
AD(4)
69
68
GND
3.11V
RA210 47
67
VDD
+3.3V
66
1.2V
I REF DAC YCC
R219
65
0V
V REF DAC YCC
64
0.9V(0.8V)
11.5K
CV OUT
64
63
0.8V
C OUT
63
62
0.8V(0.6V)
V OUT
62
61
VSSA
L203
2.2uH
60
3.3V
VDDA
+3.3V
59
I REF DAC RGB
1.2V
58
R218
V REF DAC RGB
0V
18.7K
57
0.6V(0.2V)
R OUT
57
56
0.6V(0.4V)
G OUT
56
55
0.6V(0.7V)
B OUT
55
54
VSSA
L202
2.2uH
53
3.3V
VDDA
+3.3V
EEPROM
IC215
L205
0V
1
E0
2
E1
C11
0.1
3
E2
4
VSS
x
a o
y
+5.6V
.
i
R50 0
O
P
L423
64
3.3V
1
50
VCC
VSS
L422
3.1V
2
49
3.1V
92
DQ0
DQ15
115
3.1V
3
48
3.1V
93
DQ1
DQ14
114
4
47
VSSQ
VSSQ
3.1V
5
46
3.1V
94
DQ2
DQ13
113
3.1V
6
45
3.1V
97
DQ3
DQ12
112
3.3V
7
44
3.3V
VCCQ
VCCQ
3.1V
8
43
3.1V
R229
98
DQ4
DQ11
109
62
1M
3.1V
9
42
3.1V
99
DQ5
DQ10
108
10
41
X201
VSSQ
VSSQ
27MHz
3.1V
11
40
3.1V
100
DQ6
DQ9
107
3.1V
12
39
3.1V
101
DQ7
DQ8
106
3.3V
13
38
3.3V
VCCQ
VCCQ
0V
14
37
91
LDQM
NC
3.1V
15
36
0V
90
WE
UDQM
105
3.1V
16
35
3.1V
89
CAS
CLK
104
3.1V
17
88
RAS
34
0V
R348
3.1V
18
CKE
84
CS
33
47K
3.1V
19
NC
83
A11
32
3.1V(0V)
3.1V
20
A9
74
82
A10
31
3.1V(0V)
63
3.1V
21
A8
73
78
A0
30
3.1V
3.1V
22
A7
72
79
A1
29
3.1V
3.1V
23
A6
71
80
A2
28
3.1V
3.1V
24
A5
70
81
A3
3.1V
27
25
A4
69
VCC
26
VSS
IC213
3.3V
57
SDRAM 16BIT
3.3V
1
50
VCC
VSS
3.1V
2
49
3.1V
92
DQ0
DQ15
115
3.1V
3
48
3.1V
93
DQ1
DQ14
114
4
47
VSSQ
VSSQ
3.1V
5
46
3.1V
94
DQ2
DQ13
113
3.1V
6
45
3.1V
97
DQ3
DQ12
112
3.3V
7
44
3.3V
VCCQ
VCCQ
3.1V
8
43
3.1V
98
DQ4
DQ11
109
Q
Q
3.1V
9
42
3.1V
99
DQ5
DQ10
108
3
7
6
10
41
VSSQ
VSSQ
3.1V
11
40
3.1V
100
DQ6
DQ9
107
3.1V
3.1V
12
39
101
DQ7
DQ8
106
3.3V
13
38
3.3V
VCCQ
VCCQ
0V
14
37
91
LDQM
NC
3.1V
15
36
0V
90
WE
UDQM
105
3.1V
16
35
3.1V
89
CAS
CLK
104
56
3.1V
17
88
RAS
0V
R347
34
3.1V
18
CKE
85
CS
33
47K
3.1V
19
NC
83
A11
32
3.1V(0V)
3.1V
20
A9
74
82
A10
3.1V(0V)
31
3.1V
21
A8
73
78
A0
30
3.1V
3.1V
22
A7
72
79
A1
55
29
3.1V
3.1V
23
A6
71
80
A2
28
3.1V
3.1V
24
A5
70
81
A3
27
3.1V
25
A4
69
VCC
26
VSS
IC214
3.3V
SDRAM 16BIT
(E,T,M,M2,X) TYPE ONLY
R51
10
8
4.9V
VDD
7
0V
WC
R345
6
4.7V
0
SCL
10
R346
5
4.7V
SDA
9
0
u 1 6 3
+5.6V
+3.3V
+5V
Q
R
+8V
+3.3V
+12V
2
4
8
9
+5V
9
L404
L405
8.2uH
8.2uH
R474
680
2.2V(1.6V)
IC406
2.0V(1.8V)
16
OUT4
1
OUT1
15
0.8V(0.6V)
1.0V(0.7V)
2
IN4-
L406
L407
IN1-
14
0.8V(0.6V)
8.2uH
8.2uH
1.0V(0.7V)
3
IN4+
IN1+
5.0V
4
13
VCC+
-5.0V
VCC-
VCC
5
C418
IN2+
12
1.8V
15P
6
IN3+
IN2-
11
1.8V
1.0V(0.7V)
IN3-
7
2.2V(2.0V)
OUT2
10
OUT3
2.2V(1.6V)
8
5.0V
9
STBY1
STBY2
L408
L409
0V
8.2uH
8.2uH
L410
L411
(E,T) TYPE ONLY
8.2uH
8.2uH
R419
680
IC407
C426
16
15P
2.2V(1.6V)
1
OUT4
OUT1
1.0V(0.7V)
2
IN1-
0.8V(0.6V)
1.0V(0.7V)
3
15
IN1+
IN4-
14
5.0V
4
IN4+
VCC+
13
VCC-
-5.0V
5
IN2+
6
IN2-
12
IN3+
2.2V
11
1.8V
IN3-
7
OUT2
3
1
5
1
5
0
8
9
10
OUT3
0V
8
9
STBY1
STBY2
5.0V
L412
L413
8.2uH
8.2uH
VCC+
L414
L415
8.2uH
8.2uH
IC403
DAC
3.0V
1
28
3.1V
46
LRCIN
ML
0.2V
2
27
0.2V
44
DIN
MC
3.1V
3
26
3.1V
43
BCKIN
MD
25
MUTE
4
24
CLKD
MODE
3.3V
5
45
XTI
6
23
0.2V
XTO
CS
22
3.1V
7
RST
DGND
L1
2.2uH
5.0V
8
+B
VDD
21
0.2V
L2
ZERO
5.0V
9
+B
VCC2R
2.2uH
10
20
AGND2R
VCC2L
+B
19
2.5V
AGND2L
11
EXTR
12
NC
18
2.5V
EXTL
17
NC
2.5V
13
16
2.5V
VOUTR
VOUTL
14
15
5.0V
AGND1
VCC1
m
+B
+B
c o
.
S
T
2
8
9
9
L400
R400
L416
2.2uH
4.7
R428
4.7
L402
R402
L418
2.2uH
4.7
R430
4.7
+5.6V
0V
Q208
4.65V
D401
2.63V
Q207
0V
(VIDEO MUTE)
5.0V
Q204
0.25V(0.1V)
-0.47V
(-0.56V)
2.0V(1.8V)
R475
390
5.0V
VCC
Q205
0.16V
(0.24V)
-0.47V
(-0.4V)
2
4
9
8
2
9
9
EXCEPT
2.2V(2.0V)
(E,T) TYPE
5.0V
Q206
0.16V
(0.4V)
-0.47V
(-0.24V)
L401
R401
L417
R26
2.2uH
4.7
10K
+5V
R429
199
4.7
197
L403
R403
L419
2.2uH
4.7
R25
R431
10K
4.7
(E,T) TYPE ONLY
L4
R31
2.2uH
10K
+B
+5V
L3
5.0V
+5V
2.2uH
C7 10u16
+
R28
0
R27
0
+5.6V
+3.3V

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