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Kenwood VR-208 Service Manual page 17

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U
V
15.0V
+15V
+15V
C144 6800P
15.0V
IC16
8
R140
R142
5
IC17
(1/2)
1.6K
1.6K
8
+
5
(1/2)
6
+
-
7
2
-
7
R138
3.9K
22KHz
R144
L.P.F
100
R143
R137
100
3.9K
2
R139
R141
2
-
1
1.6K
1.6K
-
1
3
+
3
+
IC17
4
IC16
4
(2/2)
-14.8V
C143 6800P
(2/2)
-14.8V
-15V
-15V
+15V
+15V
C164 6800P
15.0V
15.0V
IC14
+
3
8
R160
R162
IC15
(1/2)
+
1.6K
1.6K
3
8
(1/2)
4.7u50
2
+
-
1
2
-
1
R158
3.9K
22KHz
R164
L.P.F
100
R163
R157
100
3.9K
6
R159
R161
6
-
7
-
7
1.6K
1.6K
5
+
5
+
4
IC15
4
IC14
(2/2)
C163 6800P
(2/2)
-14.8V
-14.8V
-15V
-15V
VIDEO SELECTOR
IC4
8
7
9
6
10
5
+
4.14K
4.14K
11
4
20K
20K
12
3
13
2
20K 20K
14
20K
1
IC4 I/O TABLE
OUTPUT
2
13
4
INPUT
10 MONITOR
5 VIDEO1 REC
V-A
V-B
MUTE
L
L
L
12 VIDEO1
3 VIDEO2
L
H
H
1 VIDEO3
H
H
H
4
3
2
1
CN1
W
X
15.0V
15.0V
+15V
+15V
C126
FRch
IC12
C122
R114
6800P
5
8
R118
IC13
(1/2)
+
1.6K
R120
5
8
(1/2)
5.1K
6
+
-
7
1.6K
6
-
7
R116
22KHz
R122
L.P.F
100
100
R121
R115
100
100
2
R117
R119
2
-
1
R113
-
1
1.6K
1.6K
3
+
5.1K
3
+
4
IC13
4
IC12
(2/2)
C125
(2/2)
6800P
-14.8V
-14.8V
-15V
-15V
-15V
FLch
+15V
(VISUAL)
J2
R52
75
MONITOR
VIDEO
OUT
VIDEO(REC)
R55
75
C51
VIDEO1
10u16
C50
10u16
VIDEO
1 VIDEO2
+
IN
C52
10u16
2 VIDEO3
+
J3
DATA
L4
SYSTEM
CONTROL
L5
BUSY
J4
Y
Z
FRch 90Hz H.P.F.
+15V
15.0V
R174
15K
C172
C174
IC18
0.082
0.082
5
8
(2/2)
+
6
-
7
R178
100
FLch 90Hz H.P.F.
R177
100
2
C171
C173
-
1
0.082
0.082
3
+
IC18
4
R173
(1/2)
15K
-14.8V
-15V
15.0V
-14.8V
IC5
R33 1K
(
)
11
R217 100
IC22
6
(2/2)
-
IC5,6
5
+
7
+
8
DOLBY
BASS
MANEGEMENT
R215
+15V
220K
R34 1K
(
)
15
R35 1K
(
16
)
+15V
15.0V
-14.8V
IC6
C223
1000P
R226
C205
12K
100P
+
SW MIX
-15V
+15V
+15V
Published in Heiloo, Holland.
AA
AB
15.0V
15.0V
Rch MIX AMP
+15V
+15V
+15V
C182
IC19
47u25
8
R188
5
IC20
(2/2)
3.9K
8
R194
C226
+
5
+
(2/2)
100
4.7u50
6
+
-
7
6
-
7
+
R184
R192
100
2.2K
R186
3.9K
+
+
R185
3.9K
R191
R183
2.2K
R193
C227
2
100
2
R187
-
1
100
4.7u50
-
1
3.9K
3
+
+
3
+
IC20
4
IC19
4
(1/2)
(1/2)
-15V
-15V
-14.8V
-14.8V
+
Lch MIX AMP
+15V
SLch 90Hz H.P.F.
15.0V
R201
15K
C191
C193
IC21
0.082
0.082
3
8
(1/2)
+
2
-
1
R219
100
R220
100
6
C192
C194
-
7
0.082
0.082
5
+
IC21
4
R202
(2/2)
15K
SRch 90Hz H.P.F.
-15V
-15V
-14.8V
+15V
Cch 90Hz H.P.F.
15.0V
R205
+15V
+15V
15K
C201
C202
IC23
0.082
0.082
5
8
(2/2)
+
6
-
7
R218
-15V
R213
C229
100
100
4.7u50
+
R214
C228
100
4.7u50
+
R212
C230
100
4.7u50
+
C231
3
R211
3
+
1
100
47u50
+
1
R208
R209
2
-
+
2
-
16K
16K
4
4
IC23
IC22
(1/2)
(1/2)
SWch 90Hz L.P.F.
-14.8V
-14.8V
-15V
-15V
-15V
+15V
VR208/209(K) (2/4)
KRF-V5551D/V7510D/V8010D(M) (2/4)
KRF-V7510D/V8010D/VR-208/209
Y05-3600-10
AC
AD
12/6/15
IC1
: YSS248
IC2
: CS4226KQC or
CS4226-KQ
IC3
: TC74HCU04AF
IC4
: NJM2279M
IC5
: TC9162AF
IC6
: TC9164AF
IC8-10
: TA7805SB
IC11,13,15,17-19,21
: NJM4565M
IC12,14,16,20,22,23
: NJM4580ED
IC24
: TC7W241FU
D1,2
: DA204U or
1SS302
D3,4
: UDZ5.1B
D5
: D2SBA20F03
D7-9
: UDZ6.2B
Q1
: 2SC4081(R,S) or
2SC4116(Y,GR)
Q2
: 2SA1576A(R,S) or
2SA1586(Y,GR)
CAUTION: For continued safety, replace safety
critical components only with manufacturer's
recommended parts (refer to parts list).
indi-
cates 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 resis-
tance 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 actual reading measured
with a high impedance type voltmeter with a
cassette loaded at playback mode. The mea-
surement value may vary depending on the
measuring instruments used or on the product.
Bias circuit DC voltage is measured while in
the record mode.
DOLBY and the double-D symbol are trade-
marks of Dolby Laboratories Licensing Corpo-
ration. Noise reduction circuit made under
license from Dolby Laboratories Licensing Cor-
poration.
CN2
12
Lch
11
+15V
10
Rch
9
Cch
8
-15V
7
SLch
X09-A/3
-WH1
6
SRch
3/4
B
5
GND
4
SWch
X00-
TRNS
3/4
C
X09-B/3
-CN52
3
ANA Rch
2
GND
4/4
1
ANA Lch
D

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