Kenwood AR-304 Service Manual page 13

U V W
Q Q
3 7 6 3 1 5 1 5 0
(X09-6XXX-XX)
(A/8)
R139
1K
8
R181
9
1K
+5.6V
30V +
15V
C37 R43
4.7u35 2.7K
+
R45
1K
Q3
10dB ATT
Q4
R46
1K
C38 R44
4.7u35 2.7K
+
15V
+15V +15V +15V
14.7V
C134
1000P
R182
D4
1.2K
1/4W
-14.9V
-8.2V
Q46
C120
T E -7V 10u35
L 1 3 9 4 2 2 9 6 5 1 3
AVR
30V
Q46
C29
0.01
-30V AVR
C39
100P
0V
14.7V
Q39
41
+15V
42
TONE
C131
PASS
43 0V 4700P
15.2V
44
BVOL
SELECT
Q40
1 0 45
T 150K +
N 46 Q41
S
47 0V C129 0.82 R123
220
12K
+
48 0V
150K
49 0V C127 5600P
50
-0.6V
51
Q44
+
52 Q47
53
-15.4V
12K 54 0V C33 3.3u50
55 -14.9V
Q42
56
15V
57
SURROUND
58
BLOCK
59
5.6V AVR
0V R39 12K
60
R109
w w w D514 100
R168
61 Q38
INPUT 1 1/4W
R83 220K
62
R37 13K
63 0V
5.5V R170
100
64 R49 6.8K
R73 39K 6.1V
+ + +
.
0V +
+15V
15V
7V
X Y Z
56.5V
R75
1.3V 47 1/4W
Q15
57.0V
IDLING
+ (Lch)
Lch A CLASS
R153
10K
Q9
+B R61 R159
0.6V 47K 1K
C125
12.8V
C53 Q25,26
2P
100P
FINAL
+
C27 R175 C43 R55 COMPENSATING
Q7
2.2u50 1K 2.2u50 100 Q11
-56.0V
+ +
-55.6V -1.3V
Q13 R53
A MUTE 0V
R81
ON: 2.1V
47 1/4W
OFF: -2.8V
C59 47P
R47
0.9V
2.2K
Q1
Q5 W65
A MUTE
C56
LIMITER SW
100P
(SP,A+B)
Q6
R48
Q2
2.2K
0.9V
C60 47P
R82
47 1/4W
-1.3V
R54
Q14
-56.0V
-55.6V
C28 R176 C44 R56 Q12 C54
-1.6V
2.2u50 1K 2.2u50 100 + 2P
Q26
C126 12.8V
+ +
Q8
0V
100P R62 R160
Q34 47K 1K
R154
+B
Q10
10K
14.7V 13.9V 0.6V
14.5V Rch A CLASS
+
IDLING
(Rch)
POWER ON: 14.5V 57.0V
R165 R76
100 Q35 R173
56.5V
22K Q16 47 1/4W
1.3V
C87 10u100
STANDBY: 0.6V
+
C88 47u100
+ + +
+
-31.0V R117
B B B B
4.7 1/4W
-58.3V
+B
Q36
R115
-31.6V 1K
-58.3V
58.3V
R164 R163
51K 51K
D22
E2
C97 C96
1
+ +
+ + C111
2
0.22
3
4
5
21.5V 6
D26 7
+B +B
8
+15V D25
9
AVR
10
+ 11
D24
R122
10K C99
12
D27 0.01
15.72V 13
+
14.0V 14
4
D18 D23 15
R124
5
1K
WH2
6
5
4
R127
2.2K
F2
3
CN13 CN14
+
F1
+
-15V
2
AVR
CN15 CN16
POWER 1
ON: 0.7V
B B K1
-22.4V
D14
CN2
D17
+B +B +B
2 2 WH1
10.8V J8
x a o
Q37 1 1
y
T1
POWER
W W
RELAY
CN1
D19 SW
i
COLD
2
W4 HOT
1
R114
AC IN
3.3M
1/2W P1
AA AB AC
+B
8
Q19 3
58.3V
1 IDLE CN11
CONT. Lch
4
2
2
Q27,28
1
OVER
5
Lch B CLASS CURRENT
58.0V
DETECTOR R101 R150 R149
470 D31 1K 100
0V
R85 R93
Q25 Q27
910 3.9K
1/4W
-1.6V
Q21 1
4
2
L1
5
SP.A or C71
A+B R103 4700P
R99
:0.7V 4.7K
10 1/4W K2
23
3
R104
W169 A SP
47K
C72
SW
4700P
Q29
-58.3V
SP.B or
C73
A+B R105 4700P
K3 :0.7V 4.7K
22
W170
R106
B SP
47K
Q22 R100 SW C74
3
10 1/4W 4700P
Q30
L2
5
2 17
4
1
R86 R94
910 3.9K
1/4W
0V
Q28
S4
CN12
11 16
Q20
Rch
5 Rch B CLASS
15
2
IDLE
2
1
CONT.
4
C100 R131
4.7u35 10K
1 XS8 SL16
58.0V
Q33
3 R130
47K
SP.DC
DETECTOR
58.3V 0V
+
Q32
Q Q
58.3V 3 7 6 3
R129
B Q31
58.0V 12K
+B +B
IC1 : NJM4580L-D
WH4 IC2 : M62492FP
IC3 : TC9164AN
IC4 : NJM4565L-D
Q1,2 : DTC124ESA or
(X09- ) (H/8)
UN4212
(X09- ) (D/8)
Q3-6,29,30,34,35,37,
40,41,45 : 2SC1740S(Q,R) or
S3
2SC2785(F,E)
6 E3
Q7-10,25,26,31 : 2SA992(F,E)
1
5
CN6 Q11-14 :
2
WHT
4 5 Q15,16 :
3
BLU Q19,20 : TRAITR3N
4
S2 4
YEL Q21,22 : TRAITR3P
3 3
5 Q27,28 : 2SC2631(R,S)
6 Q32,33 : 2SC1845(F,E)
Q36,42 : 2SB1640
7
Q38 : 2SC3940A
BRN
8
2
Q39 : 2SD2525
RED
2 1 9 Q44,46,47 : 2SA933AS(Q,R) or
1 10 2SA1175(F,E)
F5
11
CN20 CN19
12
(X09- ) (E/8)
F4
13
WH3
CN5 CN4
14
2
1 15
u 1 6 3 (X09- ) (F/8)
DIGITAL LINE
S1 SIGNAL LINE
GND LINE
(K,P) : AC120V 60Hz 2
.
(M) : AC110-120V/220-240V~ +B B LINE
1
50/60Hz
B LINE
B
(Q) : AC220V~ 50Hz POWER SW
(X) : AC240V~ 50Hz
(T,E) : AC230V~ 50Hz
AD AE AF
AR-304 (X09-6310-10)
X09-B/8
DESTINATION R53, R65,66, R71, R99, R114, R151, C1,2,17-26,31,32, C65, C96,
-CN9
UNIT No.
54 205,206 72 100 209 152 67,68,71-74,135,136 66 97
9 COUNTRY 2 ABB. 4 9 8
U.S.A. K
3/3
0-10 200 8.2K 220 NO YES 20K NO 0.1 4700u75
CANADA P
B
DESTINATION D33,
D35,36 D39,40 Q1,2 Q11-14 Q15,16 F1
COUNTRY ABB. 34
U.S.A. K MTZJ13(B) or MTZJ18(B) or
YES YES 2SC2631(R,S) 2SA1123(R,S) F50-0076-05
J4
CANADA P RD13ES(B2) RD18ES(B2)
SUB
WOOFER
KRF-A4020 (X09-614X-XX)
REC OUT
DESTINATION R53, R65,66, R71, R99, R151, C1,2,17-26,31,32, C65, C67,
UNIT No. R114 R209
205,206 71-74,135,136
COUNTRY ABB. 54 72 100 152 66 68
GENERAL MARKET M 0-21 NO
200 8.2K 220 NO 20K NO
J5 AUSTRALIA X 0-71
NO 0.22 YES
U.K. T 0-51 YES
270 6.8K 150 YES 15K YES
EUROPE E 2-70
1 L
DESTINATION D33,
D35,36 D39,40 Q1,2 Q11-14 Q15,16 F1
COUNTRY ABB. 34
FRONT
SPEAKERS A GENERAL MARKET M MTZJ13(B) or MTZJ18(B) or
2SC2631(R,S) 2SA1123(R,S)
YES YES
AUSTRALIA X HZS13N(B2) HZS18N(B2)
F05-2525-05
3 U.K. T MTZJ15(B) or MTZJ20(B) or
R NO NO 2SC1845(F,E) 2SA992(F,E)
EUROPE E HZS15N(B2) HZS20N(B2)
2 L
KRF-A4020E (X09-6142-70)
DESTINATION
R53, R65,66, R71, R99, R151, C1,2,17-26,31,32, C65, C96,
UNIT No. R114
FRONT 205,206 100,209 67,68,71-74,135,136
COUNTRY ABB. 54 72 152 66 97
SPEAKERS B
EUROPE E1 2-70 270 6.8K 150 YES NO 15K YES 0.22 4700u63
4 R
DESTINATION D33,
D35,36 D39,40 Q1,2 Q11-14 Q15,16 F1
COUNTRY ABB. 34
MTZJ15(B) or MTZJ20(B) or
EUROPE E1 NO NO 2SC1845(F,E) 2SA992(F,E) F05-2525-05
HZS15N(B2) HZS20N(B2)
SYSTEM
CONTROL
KRF-A4020W (X09-6143-81)
DESTINATION
R53, R65,66, R71, R99, R151, C1,2,17-26,31,32, C65, C96,
UNIT No. R114
54 205,206 72 100,209 152 67,68,71-74,135,136 66
COUNTRY ABB.
SDATA
RUSSIA Q 3-81 270 6.8K 150 YES NO 15K YES 0.22 4700u63
SBUSY
DESTINATION D33,
D35,36 D39,40 Q1,2 Q11-14 Q15,16 F1
COUNTRY ABB. 34
J6
MTZJ15(B) or MTZJ20(B) or
RUSSIA Q NO NO 2SC1845(F,E) 2SA992(F,E) F05-2525-05
HZS15N(B2) HZS20N(B2)
P2
KRF-A4020 (X09-631X-XX)
DESTINATION
R53, R65,66, R71, R99, R151, C1,2,17-26,31,32, C65,
UNIT No. R114
54 205,206 72 100,209 152 67,68,71-74,135,136 66
COUNTRY ABB.
1 5 1 5 0 8 9 2 4
U.K. T 0-51
270 6.8K 150 YES NO 15K YES 0.22 4700u63
EUROPE E 2-71
DESTINATION D33,
D35,36 D39,40 Q1,2 Q11-14 Q15,16 F1
COUNTRY ABB. 34
U.K. T MTZJ15(B) or MTZJ20(B) or
2SC1845(F,E) 2SA992(F,E)
NO NO F50-0100-05
EUROPE E RD15ES(B2) RD20ES(B2)
D1 : MTZJ5.1(B) or
RD5.1ES(B2)
CAUTION: For continued safety, replace safety critical components only with manufactur-
D2 : MTZJ4.7(B) or
RD4.7ES(B2) er's recommended parts (refer to parts list). indicates safety critical components. For con-
D3,5-12,15-17,31,32,
tinued protection against risk of fire, replace only with same type and rating fuse(s). To
37,38,41,42,514 : HSS104A or
1SS133 reduce the risk of electric shock, leakage-current or resistance measurements shall be car-
D4,28 : MTZJ8.2(B) or
ried out (exposed parts are acceptably insulated from the supply circuit) before the appli-
RD8.2ES(B2)
ance is returned to the customer.
D13 : MTZJ6.2(B) or
RD6.2ES(B2)
D14 : MTZJ2.7(B) or
RD2.7ES(B2)
D18,23 : MTZJ5.6(B) or
The DC voltage is an actual reading measured with a high impedance type voltmeter with no
RD5.6ES(B2)
signal input. The measurement value may vary depending on the measuring instruments
D19 : S1ZB20(4101)
used or on the product.
D20,21 : MTZJ16(B) or
RD16ES(B2)
D22 : D4SBL20UF03
D24-27 : S5688B or
1SR139-400
D33,34 :
D35,36 :
D39,40 : MTZJ15(B) or
RD15ES(B2)
m
c o
AR-304(K,P) (2/3)
KRF-A4020(M,X,T,E) (2/3)
KRF-A4020E(E) (2/3)
KRF-A4020W(Q) (2/3)
Y05-3880-13
AG AH AI
C125, W1,2,64,155, W3,4,6,65,88, CN2,6,13, S1,
WH1,2 WH3 L1,2 P1
126 156,165,166 167-170 14,17,18 2,3
2 9 9
YES NO YES NO NO YES NO NO YES
F2,3 F4,5 T1 J8
NO F50-0066-05 L07-2127-05 E03-0148-05
C96, C125, W2, W3,4, W64,155, W65,88, CN6, CN17, S2,
W1 W6 CN2 13,14 WH1 WH2 WH3 L1,2 S1 P1
167,168 165,166 169,170
97 126 156 18 3
NO YES YES YES NO YES
4700u75 YES NO YES NO
YES NO
NO YES YES YES NO
YES NO NO NO YES NO
4700u63 NO YES NO YES
NO YES
F2 F3 F4,5 T1 J8
F05-2525-05 L07-2568-05 E03-0149-05
NO E03-0325-09
F05-6313-05
NO L07-2569-05 E03-0310-09
F05-2525-05 E03-0149-05
C125, W1,64,155, W2,3,4,6,65,88, CN2, CN6, WH1, S2,
WH2 L1,2 S1 P1
165,166 156,167-170 17,18 13,14
126 3 3
NO YES NO YES NO YES NO YES YES NO NO
F2 F4,5 T1 J8
F3
NO F05-2525-05 F05-6313-05 L07-2569-05 E03-0149-05
C125, W1,6,64,155, W2,3,4,6,65,88, CN6,13, WH1, S2,
CN2 WH2 L1,2 S1 P1
97 126 165,166 156,167-170 14,17,18 3 3
NO YES NO YES NO YES NO YES YES NO NO
F2,3 F4,5 T1 J8
NO F05-6313-05 L07-2569-05 E03-0149-05
C96, C125, W1,64,155, W2-4,65,88, CN6, CN17, S2,
W6 CN2 WH1,3 WH2 L1,2 S1 P1
97 126 165,166 156,167-170 13,14 18 3
9 8 2 9 9
YES NO
NO YES NO YES NO YES NO YES YES NO NO
NO YES
F2 F3 F4,5 T1 J8
NO E03-0310-09
NO F50-0094-05 L07-2129-05
F50-0100-05 E03-0149-05
AR-304/KRF-A4020