Z
AB
Y
AA
AD
AC
AF
AH
AE
AG
AI
V
X
U
W
Q3
Q5
Q6
Q4
D42
10dB ATT
A MUTE
D5
D6
Q9
Q11
Q13
Q8
Q10
Q12
Q14
Q16
Q15
Lch A CLASS
Rch A CLASS
D39
D40
Q1
Q2
D35
D36
Q21
Q19
Q20
Q22
D33
D9
D7
Q27
D34
D10
D8
Lch B CLASS
Rch B CLASS
LIMITER SW
(SP,A+B)
FINAL
COMPENSATING
Q25
Q26
Q28
IDLING
(Lch)
IDLING
(Rch)
CURRENT
OVER
DETECTOR
D41
CN11
Lch
IDLE
CONT.
CN12
Rch
CONT.
IDLE
D1
1
D12
Q29
Q30
4
2
3
1 L
R
L
R
J4
A SP
SW
B SP
SW
SUB
REC OUT
Q34
D31
S4
J6
SYSTEM
CONTROL
J5
D2
D32
D3
Q39
Q41
Q40
D18
D23
E2
CN2
CN1
S3
S2
E3
+15V
AVR
-15V
AVR
Q44
Q47
Q42
D21
D20
D26
D24
D25
D27
D13
D14
D16
D15
Q38
5.6V AVR
D17
D4
Q46
Q36
-30V AVR
Q35
Q33
Q32
Q31
SP.DC
DETECTOR
S1
POWER SW
J8
Q37
RELAY
POWER
SW
IC1
: NJM4580L-D
IC2
: M62492FP
IC3
: TC9164AN
IC4
: NJM4565L-D
Q1,2
: DTC124ESA or
UN4212
Q7-10,25,26,31
: 2SA992(F,E)
Q32,33
: 2SC1845(F,E)
Q19,20
: TRAITR3N
Q21,22
: TRAITR3P
Q36,42
: 2SB1640
Q38
: 2SC3940A
Q39
: 2SD2525
D19
: S1ZB20(4101)
D22
: D4SBL20UF03
D24-27
: S5688B or
1SR139-400
D37
D38
-7V
AVR
D3,5-12,15-17,31,32,
1SS133
HSS104A or
:
37,38,41,42,514
AR-304 (X09-6310-10)
D1
:
D2
:
D4,28
:
D13
:
D14
:
D18,23
:
D20,21
:
D33,34
:
D35,36
:
D39,40
:
Q3-6,29,30,34,35,37,
Q44,46,47
40,41,45
:
:
WH2
WH1
DIGITAL LINE
GND LINE
SIGNAL LINE
B LINE
B LINE
-CN9
X09-B/8
3/3
KRF-A4020 (X09-614X-XX)
KRF-A4020E (X09-6142-70)
KRF-A4020W (X09-6143-81)
CN6
D514
D19
D22
AC IN
WH4
Q15,16
Q11-14
:
:
2SC2631(R,S)
Q27,28
:
WOOFER
FRONT
SPEAKERS A
SPEAKERS B
FRONT
Q7
WH3
2SC1740S(Q,R) or
2SC2785(F,E)
2SA933AS(Q,R) or
2SA1175(F,E)
MTZJ5.1(B) or
RD5.1ES(B2)
RD4.7ES(B2)
MTZJ4.7(B) or
RD8.2ES(B2)
MTZJ8.2(B) or
RD6.2ES(B2)
MTZJ6.2(B) or
RD2.7ES(B2)
MTZJ2.7(B) or
RD5.6ES(B2)
MTZJ5.6(B) or
RD16ES(B2)
MTZJ16(B) or
RD15ES(B2)
MTZJ15(B) or
KRF-A4020 (X09-631X-XX)
57
58
59
60
61
62
63
64
35
36
37
38
39
40
69
68
67
NC8
NC7
NC6
NC5
NC4
2.2K
R48
2.2K
R47
1K
R46
1K
R45
4.7u35
C37
+
2.2u50
C43
+
R175
1K
2.2u50
C27
+
R43
2.7K
R55
100
100K
R41
1.2K
R133
2.7K
R44
4.7u35
C38
+
2.2u50
C28
+
1K
R176
2.2u50
C44
+
100
R56
R42 100K
R134 1.2K
100K
R172
100K
R171
47K
R52
47K
R51
680P
C46
C45 680P
C45
1K
R57
1K
R59
R58 1K
R60 1K
120
R69
120
R70
1/4W
1/4W
C59 47P
C60 47P
R65
R205
C126
100P
C125
100P
100P
C55
100u10
C51
+
100P
C49
100u10
C52
+
100P
C50
10K
R153
10K
R154
R206
R66
C48 0.01
0.01
C47
220
R63
1/4W
220
R67
100P
C57
1/4W
220
R64
1/4W
220 1/4W
R68
C58 100P
2P
C53
47K
R61
C54
2P
47K
R62
1K
R160
R159
1K
C131
+
R39 12K
R83 220K
R73 39K
R49 6.8K
R37 13K
100P
C39
3.3u50
+
C35
W165
W166
W65
5
3
4
1
2
5
2
1
3
4
3
5
4
1
2
2
5
1
4
3
1u50
C63
+
R71
VR1 220
R81
47 1/4W
R75
47 1/4W
100
R79
3.9K 1/4W
R89
910
R85
100
R77
3.9K
R93
1/4W
C69 0.01
R95 910
1u50
C64
+
100
R80
R82
47 1/4W
R72
220
VR2
100
R78
Q25,26
R90
3.9K 1/4W
910
R86
R94
3.9K
1/4W
910
0.01
C70
R96
R76
47 1/4W
Q27,28
0.22
C67
C65
10 2W
R207
47K
R97
W167
L1
W169
R99
10 1/4W
W170
47K
R98
10 2W
R208
C66
L2
10 1/4W
R100
0.22
C68
W168
1
2
1
2
K2
K3
4.7K
R103
47K
R104
R106
47K
R105
4.7K
4700P
C71
4700P
C72
4700P
C73
C74
4700P
0.47u50
C133
R150
1K
R149
100
1K
R184
1000P
C75
R151
47u10
C1
14
+
47K
R137
10K
R136
100u16
C102
+
22u16
C1
18
+
100
R165
470
R101
SL16
XS8
22
23
SBUSY
SDATA
11
24K
R157
2.2K
R158
10K
R132
220u10
C101
+
10K
R131
12K
R129
4.7u35
C100
+
47K
R130
470
R102
7
P2
220
R120
1000P
C1
17
47u35
C92
+
10K
R125
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
1
2
3
4
5
6
1
2
2
1
2
1
1
2
1
3
2
4
5
15
13
14
11
12
9
10
1
7
8
5
6
3
4
2
1K
R124
10K
R122
470u35
C95
+
1000u35
C93
+
47u35
C94
+
1000P
C1
19
2.2K
R128
2.2K
R127
15K
R126
16K
R121
220
R123
2W
100u16
C91
+
4.7 1/4W
R117
1K
R115
10u35
C86
+
10u35 +
C85
10K
R1
16
+
+
C90
C89
100u25
100u25
3.9K
R1
10
100
R170
1 1/4W
R168
10u35
C80
+
330u35
C81
+
2.2K 1/4W
R
111
4.7u35
C82
+
T1
W4
HOT
COLD
W
W
CN18
F3
CN17
W6
4.7K
R1
12
47K
R1
13
18
17
22u25
C104
R155
22K
R140
47K
R138
22K
R135
22K
1u50
C103
+
8
9
10u35
+
R182
100
R167
C120
1/4W
1.2K
1000P
C134
W1
W2
CN16
F1
CN15
CN14
F2
CN13
22K
R173
4
5
21
CN20
F5
CN19
CN5 CN4
F4
K1
W3
3.3M
R114
1/2W
30V
30V
30V
30V
Q46
7V
7V
7V
7V
UNIT No.
0-10
CANADA
DESTINATION
COUNTRY
U.S.A.
ABB.
K
P
R53,
54
200
R65,66,
YES
8.2K
205,206
C97
+
C96
+
51K
R164
51K
R163
51K
R186
P1
10
2
1
R99,
100
NO
R151,
20K
152
C1,2,17-26,31,32,
NO
67,68,71-74,135,136
C65,
0.1
66
C96,
4700u75
97
C125,
YES
126
NO
W1,2,64,155,
156,165,166
YES
W3,4,6,65,88,
167-170
NO
CN2,6,13,
14,17,18
NO
WH1,2
YES
WH3
NO
L1,2
NO
S1,
2,3
YES
P1
L07-2127-05
T1
E03-0148-05
J8
B
+B
CANADA
COUNTRY
P
U.S.A.
ABB.
K
DESTINATION
MTZJ18(B) or
RD18ES(B2)
D35,36
D39,40
D33,
34
F50-0076-05
F1
NO
F2,3
F50-0066-05
F4,5
C65,
66
0.22
COUNTRY
DESTINATION
R99,
100
NO
0-21
8.2K
200
UNIT No.
ABB.
205,206
R65,66,
R53,
54
NO
20K
NO
71-74,135,136
C1,2,17-26,31,32,
R151,
R114
152
4700u75
YES
C96,
97
C125,
126
NO
WH2 WH3
S2,
3
L1,2
NO
E03-0149-05
P1
T1
J8
GENERAL MARKET
AUSTRALIA
EUROPE
U.K.
E
T
X
M
0-71
0-51
2-70
270
6.8K
YES
15K
YES
NO
4700u63
YES
W1
NO
NO
YES
NO
W3,4,
167,168
NO
YES
W6
W65,88,
169,170
YES
NO
NO
YES
W64,155,
165,166
CN2
13,14
CN6,
NO
YES
YES
YES
CN17,
18
NO
WH1
YES
NO
YES NO
YES
YES
YES
S1
NO
YES
L07-2569-05
L07-2568-05
E03-0325-09
E03-0310-09
E03-0149-05
EUROPE
AUSTRALIA
U.K.
E
T
X
GENERAL MARKET
COUNTRY
DESTINATION
ABB.
M
34
MTZJ18(B) or
D33,
D39,40
D35,36
F05-2525-05
F05-6313-05
F1
F4,5
HZS18N(B2)
MTZJ15(B) or
HZS15N(B2)
MTZJ20(B) or
HZS20N(B2)
F05-2525-05
F2
F05-2525-05
F3
NO
NO
0.22
66
C65,
DESTINATION
COUNTRY
EUROPE
EUROPE
E1
YES
ABB.
2-70
E1
6.8K
270
NO
15K
YES
DESTINATION
COUNTRY
100,209
R99,
UNIT No.
ABB.
R53,
R65,66,
205,206
54
C1,2,17-26,31,32,
67,68,71-74,135,136
R151,
R114
152
YES
HZS20N(B2)
HZS15N(B2)
MTZJ15(B) or
4700u63
NO
NO
D33,
MTZJ20(B) or
34
D35,36
D39,40
YES
NO
F05-2525-05
YES
NO
YES
YES
NO
NO
F1
F2
E03-0149-05
L07-2569-05
NO
F05-6313-05
F4,5
17,18
CN2,
C125,
C96,
97
126
W2,3,4,6,65,88,
156,167-170
165,166
W1,64,155,
CN6,
13,14
WH2
S2,
S1
L1,2
3
P1
T1
J8
3
WH1,
0.22
C65,
66
DESTINATION
RUSSIA
COUNTRY
Q
ABB.
RUSSIA
COUNTRY
DESTINATION
YES
R99,
100,209
UNIT No.
Q
3-81
ABB.
6.8K
270
205,206
R65,66,
54
R53,
67,68,71-74,135,136
C1,2,17-26,31,32,
NO
15K
R151,
R114
152
YES
D33,
MTZJ15(B) or
HZS15N(B2)
HZS20N(B2)
MTZJ20(B) or
34
D35,36
D39,40
F05-2525-05
F05-6313-05
NO
F1
F2,3
F4,5
156,167-170
W2,3,4,6,65,88,
4700u63
NO
97
C96,
126
C125,
NO
YES
165,166
W1,6,64,155,
NO
YES
CN6,13,
14,17,18
YES
NO
YES
WH2
WH1,
3
L1,2
E03-0149-05
L07-2569-05
NO
NO
YES
S2,
3
S1
P1
T1
J8
CN2
R53
R54
R152
RED
BRN
YEL
BLU
WHT
41
42
66
65
INPUT
SURROUND
BLOCK
0.01
C29
TONE
100
R1
18
100
R1
19
1/4W
1/4W
C88 47u100
+
C87 10u100
+
100
R109
6
15
16
560 1/4W
R209
R114,
209
YES
R209
NO
1K
R139
1K
R181
100P
C56
C78 100u16
+
C111
0.22
0.01
C98
C99
0.01
(K,P)
(M)
(Q)
(X)
(T,E)
: AC120V 60Hz
: AC110-120V/220-240V~
50/60Hz
: AC220V~ 50Hz
: AC240V~ 50Hz
: AC230V~ 50Hz
0.01
C1
13
0.01
C1
12
220P
C77
220P
C76
YES
Q1,2
YES
C67,
68
W2,
156
NO
YES
Q1,2
NO
Q1,2
NO
NO
NO
Q1,2
2SC2631(R,S)
Q11-14
2SA1123(R,S)
Q15,16
2SA1123(R,S)
2SC2631(R,S)
Q15,16
Q11-14
2SA992(F,E)
2SC1845(F,E)
Q11-14
Q15,16
2SC1845(F,E) 2SA992(F,E)
2SA992(F,E)
Q11-14
2SC1845(F,E)
Q15,16
F05-2525-05
F3
100P
C30
HZS13N(B2)
MTZJ13(B) or
MTZJ13(B) or
RD13ES(B2)
YES
NO
YES
220
R71,
72
220
150
R71,
72
150
72
R71,
150
R71,
72
F50-0100-05
U.K.
EUROPE
T
E
ABB.
COUNTRY
DESTINATION
Q1,2
MTZJ20(B) or
RD20ES(B2)
MTZJ15(B) or
RD15ES(B2)
NO
NO
D35,36
34
D33,
D39,40
2SA992(F,E)
2SC1845(F,E)
Q11-14
Q15,16
F1
UNIT No.
ABB.
COUNTRY
U.K.
EUROPE
T
E
DESTINATION
205,206
270
0-51
2-71
6.8K
NO
YES
150
R65,66,
54
R53,
100,209
R99,
72
R71,
R114
67,68,71-74,135,136
15K
0.22
YES
C1,2,17-26,31,32,
152
R151,
66
C65,
F50-0094-05
F4,5
F50-0100-05
NO
F2
NO
F3
L07-2129-05
E03-0310-09
E03-0149-05
T1
J8
CN17,
NO
YES
156,167-170
4700u63
NO
NO
C96,
97
126
C125,
W2-4,65,88,
13,14
165,166
YES
NO
YES
YES
NO
W1,64,155,
W6
CN2
CN6,
YES
NO
YES
YES
NO
18
WH1,3 WH2
S1
L1,2
3
S2,
NO
P1
+5.6V
15V
15V
+15V
+15V
+5.6V
15V
+B
+B
+B
+B
B
B
+15V
15V
+5.6V
+15V
+15V
15V
BB
+B
+B
+B
B
B
B
B
+B
B
+B
+5.6V
15V
+15V
+15V
15V
15V
15V
+15V
+5.6V
15V
+B
+15V
+B
+B
+B
+B
15V
+5.6V
+B
+B
+B
+B
+B
B
+B
B
+B
B
B
+B
B
+B
+B
(X09- ) (F/8)
(X09- ) (H/8)
(X09- ) (D/8)
(X09- ) (E/8)
(A/8)
(X09-6XXX-XX)
B
AR-304(K,P) (2/3)
KRF-A4020(M,X,T,E) (2/3)
KRF-A4020E(E) (2/3)
KRF-A4020W(Q) (2/3)
0V
-14.9V
-8.2V
0V
0V
0V
14.7V
58.0V
0V
58.3V
58.0V
POWER ON: 14.5V
STANDBY: 0.6V
14.5V
13.9V
14.7V
0.6V
0V
-55.6V
12.8V
-56.0V
57.0V
1.3V
56.5V
-56.0V
12.8V
1.3V
57.0V
56.5V
0.6V
-55.6V
0V
OFF: -2.8V
ON: 2.1V
A MUTE
58.3V
0V
-1.6V
0.9V
:0.7V
A+B
SP.B or
SP.A or
:0.7V
A+B
-1.3V
-58.3V
0.9V
-1.3V
-1.6V
0V
58.3V
58.0V
58.3V
-58.3V
15.2V
15.72V
14.0V
21.5V
14.7V
-22.4V
-15.4V
-0.6V
-14.9V
-58.3V
-31.0V
-31.6V
5.5V
6.1V
10.8V
ON: 0.7V
POWER
Y05-3880-13
AR-304/KRF-A4020
CAUTION: For continued safety, replace safety critical components only with manufactur-
er's recommended parts (refer to parts list). indicates safety critical components. For con-
tinued protection against risk of fire, replace only with same type and rating fuse(s). To
reduce the risk of electric shock, leakage-current or resistance measurements shall be car-
ried out (exposed parts are acceptably insulated from the supply circuit) before the appli-
ance is returned to the customer.
The DC voltage is an actual reading measured with a high impedance type voltmeter with no
signal input. The measurement value may vary depending on the measuring instruments
used or on the product.
w w w
.
x
i a
o
y
u
1
6
3 .
c
o
m
Q Q
3
7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
