Parts List - Kenwood AR-304 Service Manual

K
IC1 :
IC2 : LC72131
Q1,3,4,6,7 : 2SC4081(R,S) or
2SC4116(Y,GR) or
2SD1819A(Q,R)
Q2,12,14 : 2SA1576A(R,S) or
2SA1586(Y,GR)
Q10,11 : 2SD1757K
D1 : DA204U or
MA143A or
1SS302
D3 : RD8.2ES(B2) or
MTZJ8.2(B) or
D4 : RD5.1ES(B2) or
MTZJ5.1(B) or
D5 : RD2.7ES(B2) or
MTZJ2.7(B) or
D8,11,13 : MA111
D9 : RD3.3ES(B2) or
MTZJ3.3(B) or
A1 :
DIGITAL LINE
SIGNAL LINE
GND LINE
B LINE
+B
B LINE
B
(X05-XXXX-XX)
CN1
15 DET
14 S-LEVEL
13 SD
R79 3.3K
12 STEREO
MUTING
0V 11 R
Q10
-2.2V
C83
10 GND
100P
0V
0V
9 L
Q11
R74 +15V 8 +15V
47K
15V 7 -15V
MUTE
-14.9V
ON: 0.7V
0V
OFF: -2.2V
R76
1.8K
MUTE
ON: 2.0V
R77
1K
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
AR-304(K,P) (1/3)
KRF-A4020(M,X,T,E) (1/3)
KRF-A4020E(E) (1/3)
KRF-A4020W(Q) (1/3)
L
AR-304 (X05-5050-10)
DESTINATION
UNIT No.
A B C F
COUNTRY ABB.
U.S.A. K
0-10 NO
CANADA P
DESTINATION
CF1,2
A1 CF3
COUNTRY ABB.
U.S.A. K L72-0596
W02-2622 YES
(MS2)
CANADA P
KRF-A4020 (X05-498X-XX)
DESTINATION
UNIT No.
A C F B
COUNTRY ABB.
GENERAL MARKET M 0-21 YES
NO
AUSTRALIA X 0-71
U.K. T NO
YES
2-71
EUROPE E
DESTINATION
CF1,2
A1 CF3
COUNTRY ABB.
GENERAL MARKET M L72-0531
W02-2622 YES
(MA5)
AUSTRALIA X
U.K. T L72-0536
W02-2584 NO
(MS3)
EUROPE E
KRF-A4020E (X05-4982-71)
DESTINATION
UNIT No.
A C F B
COUNTRY ABB.
2-71 YES NO
EUROPE E1
DESTINATION
A1 CF1,2
COUNTRY ABB.
L72-0536 (MS3)
EUROPE E1 W02-2584
KRF-A4020W (X05-4983-81)
DESTINATION
UNIT No.
A C F B
COUNTRY ABB.
RUSSIA Q 3-81 YES NO
DESTINATION
A1 CF1,2
COUNTRY ABB.
L72-0536 (MS3)
RUSSIA Q W02-2586
KRF-A4020 (X05-5052-71)
DESTINATION
UNIT No.
A C F B
COUNTRY ABB.
U.K. T
2-71 YES NO
EUROPE E
DESTINATION
CF1,2
A1 CF3
COUNTRY ABB.
U.K. T L72-0536
W02-2584 NO
(MS3)
EUROPE E
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-
X09-A/8
-CN7
tance measurements shall be carried out (exposed parts are acceptably insulated
from the supply circuit) before the appliance is returned to the customer.
2/3
A
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
FM
AM 1000(999)kHz
Y05-3880-13
M
R8, R15,29, R27, R72, C8,35,
R14 R23 R25 R32
11 36,82 28 73 74,89,90
33 270 NO 3.3K 18K 7.5K YES 15K YES
W82,
IC1 L4-7 CN2 W56 W60 S1 E1
83
LA1838 NO NO NO NO YES NO F10-1108
R15, R27, R72,
R8 R11 R14 R23 R25 R29 R32
36,82 28
YES
33 33 270 NO 3.3K 18K 7.5K YES 8.2K
NO
10 22 100 YES 15K 27K 4.3K NO 3.9K
W82,
IC1 L4-7 CN2 W56 W60 S1 E1
83
YES YES
LA1838 NO NO NO YES F10-1129
NO NO
LA1837 YES YES YES NO F10-1128
R15, R27, R29, R72, C8,35,
R8 R11 R14 R23 R25
36,82 28 32 73 77,89,90
10 22 100 YES 15K 27K 4.3K NO 3.9K
W56,
CF3 IC1 L4-7 CN2 W60 S1 E1
82,83
NO LA1837 YES YES NO YES NO F10-1128
R15, R27, R29, R72, C8,35,
R8 R11 R14 R23 R25
36,82 28 32 73 77,89,90
10 22 100 YES 15K 27K 4.3K NO 3.9K
W56,
CF3 IC1 L4-7 CN2 W60 S1 E1
82,83
NO LA1837 YES YES NO YES NO F10-1128
R15, R27, R29, R72,
R8 R11 R14 R23 R25
36,82 28 32 73 77,89,90
10 22 100 YES 15K 27K 4.3K NO 3.9K
W56,
L4-7
IC1 CN2 W60 S1 E1
82,83
LA1837 YES YES NO YES NO F10-1109 L77-2187
MODULATION
CARRIER
FREQUENCY
98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot)
400Hz MONO 30% MOD
AR-304/KRF-A4020
N O
C30, C70,71,77,
C25 C26 C42 C43
31 79,80,82
470P 0.022 0.033 27P 22P NO
X1
L77-2187
C8,35, C30,
C25 C26 C42 C43 C74 C77
73 89,90 31
YES
YES 470P 0.022
0.022 12P 10P NO
NO
NO 180P 0.018
X1
L77-2232
C30, C70,71,
C25 C26 C42 C43 C74
31 79,80,82
NO 180P 0.018 0.022 12P 10P YES NO
X1
L77-2232
C30, C70,71,
C25 C26 C42 C43 C74
31 79,80,82
NO 180P 0.018 0.022 12P 10P YES NO
X1
L77-2232
C8,35, C30, C70,71,
C25 C26 C42 C43 C74
31 79,80,82
NO 180P 0.018 0.022 27P 22P YES NO
X1
indicates safety critical com-
ANT INPUT
DEVIATION
60dB
60dB
C70,71,
79,80,82
NO
YES