Kenwood VR-707, Service Manual

Page: 17 / 32

BS BU BW BT BV
KRF-V4070D/V5070D/V6070D/VR-705/707/715/716
Y05-4640-70
+B
B
NO
YES
YES
NO
NO
YES
NO
YES
YES
R904
160K
160K
56K
62K
150K
62K
56K
160K
150K
R927
YES
NO
NO
YES
YES
NO
YES
NO
NO
R944
YES
YES
YES
YES
YES
YES
R945
YES
YES
YES
YES
NO
YES
YES
YES
NO
R960
30K
30K
NO
10K
10K
10K
NO
30K
10K
R961
YES
YES
YES
YES
YES
YES
NO
YES
YES
R946
YES
YES
NO
NO
YES
NO
NO
YES
YES
W154
150K YES NO NO 10K YES YES
NO
YES
YES
NO
YES
YES
NO
NO
NO
NO
R912
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
W64
115
W105,
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
106
WH105,
R947
NO
NO
NO
NO
NO
YES
NO
NO
NO
NO
YES
YES
YES
YES
150K
62K NO
NO
NO
NO
NO
NO
NO
YES
10K
10K
YES
YES NO
NO
YES
YES NO
NO NO
NO
YES
NO
NO
YES 100
100
56K
56K
NO NO YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
NO
YES
YES
NO
YES
NO
NO
954-957
R865,
R867 R927 R904 R912 R945 R944 R961 R960 W154 R947 R946
W105,
W64
115 106
WH105,
YES YES YES NO NO YES 10K NO YES 150K 100 NO
NO
100 160K YES YES 30K YES NO NO YES YES YES
NO 100K 62K YES YES 10K YES NO NO YES YES NO
NO
NO
NO
NO
NO NO
NO
NO
NO
YES
941,953
R929-931,
941,953
R929-931,
YES
YES
YES
YES
R811
10K
10K
R813
R814
1K
44
P16 P15 P13 P14 P12
51
NC
P16 P15 P14 P13 P12
P1
1
47 50 49 48 46
P1
1
45
P10
38
P10
P8 P9 P7 P5 P6
41
43
P8
42
P9 P7
40
P5
39
P6
P4 P3 P2 P1
35
P4 P2 P3
36 37
P1
9
SDI
SCK
33u50
C801
C805
R817
1
4.000MHz
C817 100P
100u10
+
X800
C851
100P
15
G10
G9 G8
30V
12 14 13
G7
G6
NC11
DGT3 DGT1 DGT2
10
11
DGT4
DGT5
20
G1
1
30V
18 16 17 19
21
1K
22
R840
VPP DGT0 NC17 OSC1 VDD VSS OSC2 NCS
24
20
18
C848 100P
R839 1K
23
C847 100P
R838 1K
24
P33
P32
SEG1
SEG0
SEG2
P34
P31
P30
SDO
34 36 37 35 38 40 39 42 43 44
R843 100K R844 100K
P22
P03
30V
G4
G3
G5
G2
6
7
8
P00
DGT7
DGT6
5
4
P02
P01
P1
P2
1
2
3
P20
P21
SEG7
P12
41
P13 P23
P1
1
P10
SEG5 SEG6 SEG4 SEG3
P3
R951 100K
R950 100K
R949 100K
R948 100K
30V
R841 100K
R842 100K
P9 P6 P4 P5 P7 P8
P12 P10 P1
1
P13
P16 P14
P33
P32
P31
19
26
1K
R837
25
C841
100P
27
28
P34
S1
S2
31
30
29
33
32
S3
P15
YES
YES
YES
YES
31
32 33 29 30 34
NX NX NX NX NX NX
54 53 55
NP NP F2 NX
52
+5V
+5V
+
GND LINE
B LINE
B LINE
DIGITAL LINE
Q807
FL DRIVER CCT
(X14-7650-10/7660-10) (A/2)
IC801
7G 6G 5G 4G 3G 2G 1G
col (4G)
a
b
c
d
e
f
g
h
r
j
k
m
n p
Dp (4G)
10G 9G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
11G
(L)
(C)
(R)
(SL)
(S)
(SR)
(SW)
8G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
7G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
6G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
5G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
4G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
col
Dp
3G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
2G 1G
a
j
h
k
b
f
g
m
c
e
r
n
p
d
CAUTION: For continued safety, replace safety critical com-
ponents only with manufacturer's recommended parts (refer
to parts list).
indicates safety critical components. For
continued protection 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 cus-
tomer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter with no signal input. The mea-
surement value may vary depending on the measuring
instruments used or on the product.