Flash Memory - Kenwood KVT-915DVD Service Manual

A
KVT-915DVD,925DVD,935DVD
KVT-945DVD,965DVD
QQ
3 7 63 1515 0
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3
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L 13942296513
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CAUTION : For continued safety,
replace safety critical components
only with manufacturer's recom-
mended parts (refer to parts list).
Indicates safety critical compo-
nents. To reduce the risk of electric
shock, leakage-current or resistance
measurements shall be carried out
(exposed parts are acceptably insu-
6
lated from the supply circuit) before
the appliance is returned to the cus-
tomer.
• DC voltages are as measured with
a high impedance voltmeter. Val-
www
ues may vary slightly due to varia-
tions between individual instru-
ments or/and units.
7
40
X14-947x-xx (1/16)
B
VIDEO CONTROL UNIT (X14-947x-xx) (A/3)
CN702
R717 33
TP703
RESET 1
LOUT 2
ACOM 3
ROUT 4
DGND 5
CP702 33
TP704 1 8
DD7 6
TP705 2 7
DD8 7
TP706 3 6
DD6 8
TP707 4 5
DD9 9
CP707 33
TP708 1 8
DD5 10
TP709 2 7
DD10 11
TP710 3 6
DD4 12
TP711 4 5
DD11 13
CP703 33
TP712 1 8
DD3 14
TP713 2 7
DD12 15
TP714 3 6
DD2 16
TP715 4 5
DD13 17
CP708 33
TP716 1 8
DD1 18
TP717 2 7
DD14 19
TP718 3 6
DD0 20
TP719 4 5
DD15 21
DGND 22
R718 82
TP720
DMARQ 23
DGND 24
R719 22
TP721
DIOW 25
DGND 26
R720 22
TP722
DIOR 27
R722 82
TP723
IORDY 28
TP724
DACK 29
R723 82
TP725
INTRQ 30
R721 33
TP726
DA1 31
CP704 33
PDIAG 32
TP727 1 8
DA0 33
TP728 2 7
DA2 34
TP729 3 6
CS1FX 35
TP730 4 5
CS3FX 36
DASP 37
R716
DISC DET 38
TP731
1K
DGND 39
S/PDIF 40
TP732
5V 41
5V 42
PGND 43
PGND 44
PGND 45
PGND 46
TP733
7V 47
7V 48
7V 49
7V 50
CN701
VCC 1
TDO 2 32
3 4
TDI
TMS 4 28
GND 5
TCK 6 8
7
x ao
y
. i
C
8
145
R724 10K
CP716
LA16
10K
LA15
LA14
141
LA13
122
LA12
140
LA11
123
LA10
LA9
CP714
10K LA20
137
WRL
124
R703
136
4.7K
125
CP717
10K
LA19
LA18
135
LA8
126
LA7
134
LA6
127
LA5
LA4
CP715
LA3
10K
LA2
133
128
132
131
R727 10K
149
150
146
R726 10K
144
R728 10K
155
Q Q
3 6 7 1 3
154
158
152
153
4
8
179 185
178 182
176 181
170 180
u163
.
D
2 9 9 4 2 8

FLASH MEMORY

IC702
48 3.0V
2.6V C703
1
A16 LA17
A15
0V 10u10
47
2.5V 2
BYTE
A14
+
46
2.5V 3
GND2
A13
45 1.2V
2.4V 4
Q15 LA0
A12
44 1.9V
2.4V 5
Q7 LD7
A11
R704 10K
2.6V 6 43 0V
A10 Q14
2.5V 7 42 2.0V
A9 Q6 LD6
2.6V 8
R705 10K
41 0V
A8
Q13
2.5V 9
40 1.4V
A19
Q5 LD5
10
NC10
R706 10K C704
39 0V
3.4V 11
Q12
WE
38 1.0V
0.1
Q4 LD4
3.4V 12
37 3.4V
RESET
VCC
13
NC13 R707 10K
36 0V
14 Q11
NC14 35 1.1V
15 Q3 LD3
RY/BY
R708 10K
34 0V
2.6V 16
Q10
A18
1.2V
33
2.4V 17
Q2 LD2
A17
2.5V 18
0V R709 10K
32
A7
Q9
2.8V 19
31 1.0V
A6
Q1 LD1
1.6V 20
R710 10K
A5 30 0V
1.6V 21 Q8
A4 29 0.6V
Q0 LD0
1.6V 22
A3 28 0V
1.7V 23 OE LOE
A2 27 0V
1.6V GND1
24
A1 26 0.3V
CE
25 1.2V
A0 LA1
3.4V
C705
0.1
1 5 0 5 8 2 9 9 4
1.2V
1
LA1 I/O5 1.2V
2
LA17 I/O6 2.7V
3.4V 0V
3
I/O7
2.7V 4
TDI
1.7V 5
I0
6
IC703
NC6 GND3
0V 7
GND1
CPLD
0V 8
TCK 3.4V
9
WRL I/O8 0V
10
LOE I/O9
3.3V 11
I/O10
0V 12
I/O11
C706
0.1
m
204 2
198 207
187 206
186 205
co
E
9 9
W701
R702
47K
C700
10u10
+
C701
0.1
C702
0.1
0V
CP
2 8 9 9
4.7
36
I/O27 36
35
I/O26 35
34
I/O25 34
33
I/O24 33
32 2.7V
TDO 32
31 0V
30
NC30
29
I1
28 3.4V
TMS 28
27 0V
I/O23
26
I/O22
25
I/O21
CP713
4.7K
6 12
5 11
4 10
3 7