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Kenwood VR-208 Service Manual page 19

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AO
AP
KRF-V7510D (X09-4892-91)
DESTINATION
C7,8 C21,22,
UNIT No.
C1,2
C3
C5,6
COUNTRY
ABB.
PX
Y
2-91
NO
YES
3300u50
NO
KRF-V8010D (X09-4890-21)
DESTINATION
UNIT No.
C1,2 C3
C5,6
COUNTRY
ABB.
PX
Y
0-21
NO YES 4700u75
3300u42
GENERAL MARKET
M
KRF-V8010D (X09-6062-10)
DESTINATION
UNIT No.
C1,2 C3
C5,6
COUNTRY
ABB.
SHANGHAI
V
2-10
YES
NO
4700u63
3300u35
W128
-65V
+65V
-37V
W220
A
A
-4.1VV
Q31
A
-2.5V
A
Q36
-3.5V
+
A
-3.0V
Q1
+
R34
47K
B
+5.2V
B
B
+4.5V
Q32
-65V
IC1
:
TA7815SB
Q1,17-21,24,25,34,35,37
IC2
:
TA79015SB
:
2SC1845(F,E)
IC3
:
Q2
:
IC4
:
Q3-14
:
2SC2878(B)
IC5
:
NJM4580ED
Q15,16
:
2SA1576A(R,S)
IC6
:
TC9164AF
Q23
:
2SA992(F,E)
IC7
:
TC9163AF
Q26-29
:
DTC123JUA
IC8,10-12
:
NJM4565MD
Q31
:
2SC2631(S,T)
IC9
:
M62446FP
Q32
:
2SA1123(S,T)
Q36
:
2SA1535(Q,R)
Q38
:
2SC3722K(R,S)
Q39
:
DTC113ZUA
Q40
: 2SC4116(Y,GR) or
2SC4177(L5,L6)
AQ
AR
C23-26,
C33,34,
D1,11-14,
R1,2,
R3,4,16,
D26
IC3
IC4
Q2
29,30
31,32
39,40
29
15
22,25,26
NO
47u50
3900P50
NO
MA111
STK407-090K
STK407-290K
2SA1534A(R,S)
27K
NO
C21,22,
C23-26,
C33,34,
D1,12-14,
C7,8
D11
D26
IC3
IC4
29,30
31,32
39,40
29
MTZJ7.5(B) or
STK411-230K or
STK410-030K or
YES
10u100
3900P500
YES
MA111
2SB1640
RD7.5JS(B2)
STK411-230D
STK410-030D
C21,22,
C23-26,
C33,34,
D1,12-14,
C7,8
D11
D26
IC3
IC4
29,30
31,32
39,40
29
MTZJ8.2(B) or
HSS104A or
STK410-030K or
YES
10u100
3900P500
YES
STK411-230D
RD8.2JS(B2)
1SS133
STK410-030D
P1
STK411-230K
STK407-090K
POWER IC (C, SL, SRch)
IC4
STK410-030K
STK407-290K
D13
D14
X
+
-65V
+65V
B
B
+B
+B
+37V
X
X
W63
W57
R302 1K
C282
+
+
R301 1K
C281
10P
+
R300
10P
R299
56K
Q9-13
56K
MUTE
C266
R374
+
+
2.2u50
1K
R258
R261
+
2.2K
2.2K
R260
1K
Q11
Q10
C27
0.7V
0.7V
150P
R259
Q12
R264
Q9
1K
0.7V
C265
R373
R257
0.7V
2.2u50
1K
2.2K
R262
2.2K
R376
+
R265 2.2K
+15V
+65V
-65V
-37V
+37V
15V
-31V
D1,2
:
D4SBL20UF03
D17
:
1SS133 or
D3-6
:
1SR139-400 or
HSS104A
S5688B
D18
:
MTZJ4.7(B) or
D8,9
:
MTZJ16(B) or
RD4.7ES(B2) or
RD16ES(B2) or
HZS4.7N(B2)
HZS16N(B2)
D19
:
MTZJ3.3(B) or
D11
:
RD3.3ES(B2) or
D12-14
:
MTZJ8.2(B) or
HZS3.3N(B2)
RD8.2ES(B) or
D20-23,27-30
:
MA111
HZS8.2N(B2)
D26
:
D15,16
:
MTZJ6.8(B) or
RD6.8ES(B) or
HZS6.8N(B2)
AS
AT
R27,28,
R229,
R241,
R315,316,
R343,
R367,
R369-
W4,10,12,28,57,58,60,
W56,63,
R13
R21
R46
35
230
242,253
329,330,363
347,358
368
371
129,130,219,220
79,128
22K
6.2K
820
YES
13K
51K
39K
20K
3.3K
6.2K
YES
NO
R1,2,
R3,4,16,
R27,28,
R229,
R241,
R315,316,
R343,
R367,
R369-
W4,10,12,28,57,58,60,
Q2
R13
R21
R46
15
22,25,26
35
230
242,253
329,330,363
347,358
368
371
129,130,219,220
3.9K
51K
YES
20K
2.7K
NO
9.1K
36K
24K
27K
2.4K
5.6K
1W
R1,2,
R3,4,16,
R27,28,
R229,
R241,
R315,316,
R343,
R367,
R369-
W4,10,12,28,57,58,60,
Q2
R13 R21
R46
15
22,25,26
35
230
242,253
329,330,363
347,358
368
371
129,130,219,220
3.9K
2SB1640
51K
YES
27K
1.8K
NO
13K
51K
24K
20K
3.3K
6.2K
1W
+B
+B
W56
+65V
R303
B
56K
+B
R304
C283
56K
R305 1K
15P
C284
R306 1K
15P
C28
150P
+
+
R375
C271
1K
2.2u50
+
R263
R267
1K
1K
0.7V
1K
Q13
C272
2.2u50
+
1K
R377
1K
+15V
+65V
-65V
-37V
+37V
15V
-31V
DC VOLTAGE FOR IC3
PIN NO
1
2
3
4
5
6
7
IC3
STK411-230K
A
66.9V
0V 36.1V
C
36.3V
28.2V
-28.3V
D
-36.4V
STK407-090K
DC VOLTAGE FOR IC4
PIN NO
1
2
3
4
5
6
7
IC4
STK410-030K
A
66.9V 0V 36.1V
C
36.4V
28.2V
-28.3V
D
-36.4V
STK407-290K
Published in Heiloo, Holland.
AU
AV
+
+
Q34
Q24
0V
0V
A
-1.7V
Q35
W56,63,
Q25
79,128
NO
YES
A
-1.5V
0V
R31
Q23
3.3K
W56,63,
79,128
PROTECTION
+
NO
YES
Q17-21
CURRENT
A
LIMMITER
R311
R379
0.1
22
2W
L1
FLch
3uH
R317
0V
470
Q17
A
-1.7V
R318
470
Q18
0V
L2
3uH
FRch
R312
R380
0.1 2W
22
R325
R381
0.1
22
2W
L3
SLch
3uH
0V
R331
Q19
470
A
-1.7V
R332
470
Q20
0V
L4
3uH
SRch
R326
R382
0.1 2W
22
+B
A
-1.7V
0V
R365
+65V
470
L5
R307
Q21
56K
3uH
Cch
C285
R309
R339
R383
15P
1K
0.1
22
2W
+
C301
0.1
R293
56K
-65V
R18
4.7 1/4W
-65V
+
B
R27
R28
R35
D8 D9
+0.4V
-31V AVR
C18
22u63
-32.0V
Q2
C19 47u35
-31.5V
+
-37V
+15V
+65V
-65V
-37V
+37V
15V
Q40
TH1
-31V
R8
4.7K
8
9
10
11
12
13
14
15
16
17
18
19
20
21
B
-66.6V
-36.2V
-36.2V
-36.2V
0V
0V
0V
0V
-62.0V
62.8V
0V
0V
-60.8V
0V
B
D -41.5V
B
D
-41.5V
A
C
41.5V
0V
0V
0V
0V
-37.9V
38.2V
0V
0V
-36.6V
0V
8
9
10
11
12 13
14
15
16
17
18
19
20
21
B -66.6V
-56.5V
-56.5V
-56.5V
0V 0V
0V
0V
-62.0V
62.8V 0V
0V
-60.8V
0V
B
D
-41.5V
B
D -41.5V
A
C 41.5V
0V 0V
0V
0V
-38.0V
38.2V
0V
0V
-36.8V
0V
AW
AX
12/6/15
R343
ON:4.4V
R346
OFF:0V
Q26
8,2K
FRONT
A SP
R344
ON/OFF
620
ON:0V
OFF:24.4V
R347
K1
ON:4.4V
Q29
OFF:0V
C, SWch
(
8
)
ON/OFF
ON:0V
OFF:24.4V
K4
ON:4.4V
Q27
OFF:0V
FRONT
B SP
(
)
7
ON/OFF
ON:0V
OFF:24.4V
K2
ON:4.4V
Q28
OFF:0V
SL, SRch
ON/OFF
(
9
)
ON:0V
OFF:24.4V
K3
R341
D1
4.7 1/4W
+65V
+65V
+
~
+
A
R15
+
B
-65V
-
~
+
C
+
X
D2
R16
R4
+
27K
+37V
+
~
D
-37V
-
~
+37V
IC1
15V AVR
R41
330 2W
25.5V
15.0V
D3
3
1
OUT
IN
+15V
GND
+
+
D4
2
IC1
D5
+
+
1
IC2
D6
GND
15V
3 OUT
IN
2
-14.8V
-26.2V
D30
IC2
-15V
R14
AVR
1 1/4W
(
)
1
KRF-V8881D (Y,M) ONLY
(
3
)
22
23
0V
0V
0V
22 23
24
25
26
0V
0V
0V
-57.9V
0V
0V
0V
0V
-41.5V 0V

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