Parts List - Kenwood AR-304 Service Manual

K
QQ
IC1
3 7 63 1515 0
IC2
Q1,3,4,6,7
Q2,12,14
Q10,11
D1
D3
D4
D5
D8,11,13
D9
A1
+B
B
(X05-XXXX-XX)
TE
L 13942296513
R79 3.3K
MUTING
0V
Q10
-2.2V
0V
0V
Q11
R74
47K
MUTE
ON: 0.7V
0V
OFF: -2.2V
R76
1.8K
R77
1K
www
.
L
AR-304 (X05-5050-10)
:
DESTINATION
: LC72131
COUNTRY ABB.
U.S.A. K
: 2SC4081(R,S) or
CANADA P
2SC4116(Y,GR) or
DESTINATION
2SD1819A(Q,R)
COUNTRY ABB.
: 2SA1576A(R,S) or
2SA1586(Y,GR) U.S.A. K
CANADA P
: 2SD1757K
: DA204U or KRF-A4020 (X05-498X-XX)
MA143A or
DESTINATION
1SS302
COUNTRY ABB.
: RD8.2ES(B2) or
GENERAL MARKET M
MTZJ8.2(B) or
AUSTRALIA X
: RD5.1ES(B2) or
U.K. T
MTZJ5.1(B) or
EUROPE E
: RD2.7ES(B2) or
MTZJ2.7(B) or DESTINATION
COUNTRY ABB.
: MA111
: RD3.3ES(B2) or
GENERAL MARKET M
MTZJ3.3(B) or AUSTRALIA X
U.K. T
:
EUROPE E
KRF-A4020E (X05-4982-71)
DESTINATION
COUNTRY ABB.
EUROPE E1
DESTINATION
COUNTRY ABB.
EUROPE E1
DIGITAL LINE
KRF-A4020W (X05-4983-81)
SIGNAL LINE
DESTINATION
GND LINE
COUNTRY ABB.
B LINE
RUSSIA Q
B LINE
DESTINATION
COUNTRY ABB.
RUSSIA Q
KRF-A4020 (X05-5052-71)
DESTINATION
COUNTRY ABB.
U.K. T
EUROPE E
DESTINATION
COUNTRY ABB.
U.K. T
EUROPE E
CN1
15 DET
14 S-LEVEL
13 SD
12 STEREO
11 R
X09-A/8
-CN7
C83
10 GND
100P
2/3
9 L
+15V 8 +15V
A
15V 7 -15V
-14.9V
MUTE
ON: 2.0V
OFF: 4.6V
6 T. MUTE
4 5 PLL DT
5 4 PLL CLK
3 3 PLL CE
6 2 PLL DO
1 CH. SPACE
x ao
y
i
AR-304(K,P) (1/3)
KRF-A4020(M,X,T,E) (1/3)
KRF-A4020E(E) (1/3)
KRF-A4020W(Q) (1/3)
M
R8, R15,29,
8
UNIT No. R14 R23
A B C F
11 36,82
0-10 NO 33 270 NO 3.3K
CF1,2
A1 CF3 IC1 L4-7 CN2 W56
L72-0596
W02-2622 YES LA1838 NO NO NO
(MS2)
R15,
UNIT No. R8 R11 R14
A C F B
36,82
0-21 YES
NO 33 33 270 NO
0-71
NO
YES 10 22 100 YES
2-71
CF1,2
A1 CF3 IC1 L4-7 CN2 W56
YES
L72-0531
W02-2622 YES LA1838 NO NO
(MA5)
L72-0536 NO
W02-2584 NO LA1837 YES YES
(MS3)
R15,
UNIT No. R8 R11 R14
A C F B
36,82
2-71 YES NO 10 22 100 YES 15K
A1 CF1,2 CF3 IC1 L4-7 CN2
L72-0536 (MS3)
W02-2584 NO LA1837 YES YES
R15,
UNIT No. R8 R11 R14
A C F B
36,82
3-81 YES NO 10 22 100 YES
A1 CF1,2 CF3 IC1 L4-7 CN2
L72-0536 (MS3)
W02-2586 NO LA1837 YES YES
R15,
UNIT No. R8 R11 R14
A C F B
36,82
2-71 YES NO 10 22 100 YES
W56,
CF1,2 L4-7
A1 CF3 IC1 CN2
82,83
L72-0536
W02-2584 NO LA1837 YES YES
(MS3)
Q Q
3 6 7 1 3
CAUTION: For continued safety, replace safety critical components only with man-
ufacturer's recommended parts (refer to parts list).
ponents. 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 volt-
meter as the AM/FM signal generator is specified to the conditions as shown in the
list below. The measurement value may vary depending on the measuring instru-
ments used or on the product. The value shown in ( ) is actual reading measured
in the AM mode.
MODE CARRIER
FREQUENCY
FM 98MHz
AM 1000(999)kHz
u163
.
AR-304/KRF-A4020
Y05-3880-13
N
2 9 R27, R72, 9 4 C8,35, 2 8 C30,
R25 R32 C25 C26
28 73 74,89,90 31
18K 7.5K YES 15K YES 470P 0.022 0.033
W82,
W60 S1 E1 X1
83
NO YES NO F10-1108 L77-2187
R27, R72, C8,35,
R23 R25 R29 R32 C25 C26
28 73 89,90
YES
3.3K 18K 7.5K YES 8.2K YES 470P 0.022
NO
15K 27K 4.3K NO 3.9K NO 180P 0.018
W82,
W60 S1 E1 X1
83
YES
NO YES F10-1129
L77-2232
NO
YES NO F10-1128
R27, R29, R72, C8,35, C30,
R23 R25 C25 C26
28 32 73 77,89,90 31
27K 4.3K NO 3.9K NO 180P 0.018 0.022 12P 10P
W56,
W60 S1 E1 X1
82,83
NO YES NO F10-1128 L77-2232
R27, R29, R72, C8,35, C30,
R23 R25 C25 C26
28 32 73 77,89,90 31
15K 27K 4.3K NO 3.9K NO 180P 0.018 0.022
W56,
W60 S1 E1 X1
82,83
NO YES NO F10-1128 L77-2232
R27, R29, R72, C8,35, C30,
R23 R25 C25 C26
28 32 73 77,89,90 31
15K 27K 4.3K NO 3.9K NO 180P 0.018 0.022
W60 S1 E1 X1
NO YES NO F10-1109 L77-2187
1 5 0 5 8 2 9 9 4
indicates safety critical com-
MODULATION
DEVIATION
1kHz STEREO 67.5kHz 7.5kHz(Pilot)
400Hz MONO 30% MOD
m
co
O
C70,71,77,
9 9
C42 C43
79,80,82
27P 22P NO
C30, C70,71,
C42 C43 C74 C77
31 79,80,82
YES
NO
0.022 12P 10P NO
NO
YES
C70,71,
C42 C43 C74
79,80,82
YES NO
C70,71,
C42 C43 C74
79,80,82
12P 10P YES NO
C70,71,
C42 C43 C74
79,80,82
27P 22P YES NO
2 8 9 9
ANT INPUT
60dB
60dB