Kenwood DV-705, Service Manual

Page: 11 / 18

DV-705/DVF-R5070-S
VFD UNIT
12
U W Y V X
2
1
3
5
7
4
6
U2
KEY UNIT
VFD UNIT
DV-705 (3/3)
U1
N2 J3
D1
D2
D4
D3
D7
D6
D5
J1
D15
D14
J2
2/3
SMPS-
CN1
1/3
UNIT-
J12
MAIN
S1
DISC SKIP DISC 5
S2
DISC 4 SEQ MODE
S3 S4
OPEN/CLOSE PREV
S5 S6
PAUSE
S7
DISC 1 DISC 2
S8 S9
DISC 3
S10
PLAY STOP
S11 S12
NEXT
S13
D8
D9
D10
D11
D12
U1 : 12-BT-151GNK
U2 : uPD16315GB-3BS
D1-7,14,15 : 1N4148
D8-12
: B30-2645-08
DISC 1
DISC 2
DISC 3
DISC 4
DISC 5
IR1
IR SENSOR
GND LINE
B LINE
B LINE
NP P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P1
1
P12 P13 P14 P15 P16 12G 11
G
10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NP NP F1 NP F2
33 32 31 30 29 28 27 26 25 24 23
22
21
20
19
18
17
16
15
14
13
12
1
2
3 4 5 6 7 8 9
10
11
34
35
36
37
38
39
40
41
42
43
44
GRID10
GRID1
1
GRID12
VEE
SEG16 SEG15 SEG14 SEG13 SEG12
SEG1
1
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
VDD
VSS
LED1 LED2 LED3 LED4 OSC DOUT DIN CLK STB KEY1 KEY2
GRID9
GRID8
GRID7
GRD6
GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
9G
8G
6G
7G
4G
5G
2G
3G
1G
G10
G1
1
G12
P16 P15 P14 P13 P12 P1
1
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
11
10
1
2
3
4 R8 330 R7 330 R6 330 R5 330 R2 82K
9 7
1 2 3 4
11
10
R3 4.7K R1 4.7K
1
2
3
4
5
GND
+FL
-27V
-FL
5.6V
1
2
3
4
5
6
7
IR
GND
FPCS
FPCLK
FPDATA
LED1
NC
VCC
OUT
2
1
3
GND
C4
0.1
47u16
C1
+
100
R4
8
7
8
9
330
R9
G12 G1
1
G10
G9 G8 G7 G6 G5 G4 G3 G2 G1
P1
1
P16 P15 P13 P14 P12 P10
P9 P8 P7 P6 P5 P4 P3 P2
P1
1 2 3 4 5 6 7
9
8
15
14
13
12
10
15
9
10
12
13
14
5
6
7
8
1
2
3
4
270K
R12
C3 0.1
0.1
C2
47u16
+
C5
+B
B
50 49 48 47 46 45 44 43 42
41
40 39 38 37 36 35 34 33 32
31
30 29 28 27 26 25 24 23 22
21
20 19 18 17 16 15 14 13 12
11
10
9 8 7 6 5 4 3 2
1
NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NX
52 54 53
51
NX
+5.6V
27V
+B
+B
+B
+B
+B
12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G 12G
Dp
Dp
Col Col
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
f
h
k
j
g
m
c
e
r
p
n
d
Dp
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
f
h
k
j
g
m
c
e
r
p
n
d
Dp
a
b
f
h
k
j
g
m
c
e
r
p
n
d
Col Col
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
f
h
k
j
g
m
c
e
r
p
n
d
a
b
h
j
k
m
r
p
n
g
f
(11G~2G)
c e
d
CAUTION: For continued
safety, replace safety criti-
cal components only with
manufacturer's recom-
mended parts (refer to
parts list).
indicates
safety critical compo-
nents. For continued pro-
tection against risk of fire,
replace only with same
type and rating fuse(s). To
reduce the risk of electric
shock, leakage-current or
resistance measurements
shall be carried out
(exposed parts are
acceptably insulated from
the supply circuit) before
the appliance is returned
to the customer.
The DC voltage is an actu-
al reading measured with a
high impedance type volt-
meter with no signal input.
The measurement value
may vary depending on
the measuring instruments
used or on the product.
A-5
P-1