Kenwood AR-304, Service Manual

Page: 9 / 24

F H J L N G I K M O
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
9
10
(ALL)
XS8
SL16
W54
W170
W169
R49
R73
C88
R109
C94
C104
C118
W94 W141
C136
C135
R91 R92
R204
R203
C32
W140
C84
C83
R145
R143 R144
C110
C137
C79
W198
W128
R182
R188
C134
W118
R45
C57
C58
R208
C66
C65
C67
C68
C119
R94
R90
R89
W165
R152
C133
W78
W20
R136
R66
R206
R65
R205
C27
R114
C31
C126
C28
R163
R164
C30
C29
R147
R146
R148
W116
W95
R83
R50
R74
R84
W134
W166
C125
C117
W90
W167
W168
W104
SGND
SDA
T
A GND
BUSY
W121 W89 W97
W37
W42
W11
W27
W58
W162
W40
R82
R119
R118
R75
R76
R81
R99
R168
R100
R111
R117
R93
R70
R141
R63
R64
R156
R142
R67
R69
R68
W66
C75
W105
C73 C74
C71
C72
C59
C60
C129
C130
W119
W45
C123
C124
C115
C120
C63
C64
C3
C33
C35
C34
W12
W23
C36
C51
C44
C4
C52
C43
C37
C8
C7
C38
C87
C86
C108
C103
C114
C116
C100
C80
C82
C85
C95
C81
C93
C92
C102
C101
C107
C90
C78
C89
C91
C54
C9
C53
C56
C10
C55
C50
C6
C42
C49
C5
C39
C45
C40
C46
C1
W83
W85
C105
C106
C2
C122
C69
C20 C21 C22
C17 C18
C19
C23
C76
C77
C121
C70
C24
C25 C26
C98
C99
W65
C48
C41
C47
L2
L1
C14
C15
C13
C131
C132
C127
C128
C16
R106
R112
R110
R122
R123
R124
R121
R113
R115
R116
R176
R165
R105
R167
R104
R175
R170
R171
R172
R125
R157 R155
R160
R158
R159
R154
R150
W131
R149
W79
R153
R151
R130
R131
R127
R126
R129
R128
R132
R138
R137
R140
R139
R134
R133
R135
R200
R183
R181
R187
R199
R186
R184
R103
R30
R29
R31
R33
R32
R28
R24
R23
R25
R27
R26
R41
R40
R42
R44
R43
R39
R35
R34
R36
R38
R37
R8
R7
R9
R11
R10
R6
R2
R1
R3
R5
R4
R19
R18 R20
R22
R21
R17
R13
R12
R14 R16
R15
R80
R86
R85
R77
R79
R78
R97
R96
R98
R102
R101
R95
R53
R52
R54
R56
R55
R51
R47
R46
R48
R62
R61
R71
R72
R60
R58
R57 R59
C11 C12
K2
K3
C111
W153
W161
W139
W144
W127
W133
W137
W132
W142
W96
W98
W103
W151
W148
W149
W155
W159 W163
W156
W138
W126
W100
W107
W125
W51
W46
W93
W102
W29
W33
W30
W24
W56
W22
W112
W41 W38
W57
W77
W86
W84
W34
W52
W62
W25
W91
W59
W2
W81
W113
W109
W88
W63
W67
W60
W68
W55
W26
W76
W1
W3
W6
W4
W31
W15
W32
W53
W49
W69
W71
W82
F3
F1
F2
PHONO
EQ
10dB ATT
A CLASS
+5.6V AVR
-30V AVR
15VAVR
E.VOLUME
BIAS CONT.
BIAS CONT.
PROTECTION
INPUT
SELECTOR
A MUTE
R209
R173
W35
VR1
VR2
W171
R207
C96
C97
R120
K1
T1
W64
Lch
Rch
1
1
1
2
2
2
6
1
15
8
1
1
14
15 28
1 8
41
40
25
24
1
80
65
64
15
1
EB
2
1
2
1
1 31
B B E E E E B B E E B B B B E E
E
B
B
BE
E
BE
B
E
B
E B
B E
B
E
B
E
B E
E
B
E
B E
E
E
B
E
B
E
B B
E
B
E
E
B
E
E
E
B
E
B
B
B
B
BE
B
B
E
E
B
E
E B
B E
B E
E B
B
E
EB EB
B
E
C510
MONITOR
1
C112
1
C113
1
2
A SP
B SP
C518
C511
R548
R107
R550
R551
W21
MUTE
W10 W9
W14
W13
BOOST
BASS
1
C524
C528
C508
9
3
15
F5
F4
R547
R108
W5
R549
POWER
POWER
W17
W19
W18
R539
4
8
W16
L501
C515
1
4
W8
W7
ED51
R541
SOUND
W50
W44
S.DIRECT
BALANCE
R560
R562
W39
C523
W28
C513
C512
C520
W36
X502
C527
R580 16
C522
R557
C519
W48
W61
R516
W43
5
W72
R504
W70
W75
B
B
E
E
R583
W73
W74
8
C506
R521
R567
R572
R571
R566
R559
W87
R561
W92
RDS DISP.
1 L502
C516
R569 R564 R578
1
P.CALL P.CALL DIMMER
TA/NEWS
PTY
W47
4
AUTO BAND
1
W80
35
MEMORY
W101
W106
1 3
R514
R506 R505
R503
R508 R510 R507
R513
R512 R511
R575
R576
W122
W124
W123
W120
R585
C535
R536
C525
R581
C534
C531
R582
W136
C504
R568
R532
R515
R531
W158
R534 R533
W160
R502
R529
R528
C509
81
W110
80
50
51
100
1
31
30
W147
R537
W143
C502
R169
R577
W150
C109
X501
W135
R530
W152
R524
R525
B
R509
W111
R540
W114
W115
R579
C526
R545
R546
C505
CP1
R527
R542 R543 R544
R538
W130
CP2
W129
W146
R556
C533
C503
W172
W145
E
C521
R586
C532
1
C507
C514
R552
R570
R563
R565
R558
R573
C517
R574
C529
O
G
I
31
2 1
120V
120V
5
240V
1
6
1
C62
1
3
C61
240V
H.P
.
E
B
IC2
Q45
D28
Q46
D39
IC4
Q47
D41
D2
D23
D40
CN13
CN16
CN15
CN14
CN17 CN18
P1
D42
Q5
Q6
Q4
Q1
Q2
Q3
Q41
Q30
Q29
Q40
Q35
Q44
D27
D24
D26
D25
Q39
Q36
Q42
J6
Q7 Q8
Q31
Q27
Q28
Q9
Q15
Q34
Q33
Q37
Q38
Q16
Q32
Q12
Q11
Q10
Q13
Q14
J1
IC3
J3
D22
D514
D37
D31
D32
D38
D15
D8
D17
D16
D11
D10
D9
D12
D7
D3
D5
D6
D34
D33
D1
D36
D35
D18
D14
D13
D20
D4
D21
J4
WH3
Q20
Q22 Q19
Q21
WH4
D19
Q25
S4
J5
CN11
CN12
CN7
J2
CN8
IC1
E2
CN1
CN2
J8
(0-21)
Q26
X09-6310-10 A/8
AC
P.
T
.
SW
.
WH2
P2
WH4
E3
X09 E/8
WH3
S512
S501
S507
S509 S506
D509
D517
WH51
CN4
CN19 CN20
CN5
X09 D/8
D515
D511
D523
D516
WH52
S508
D527
WH52
X09 C/8
X09 B/8
IC52
S503
S514
Q501
S502
D503
Q502
S518
D522 D507
D510
D504 D505
IC54
S505
S511
S513
D521 D519
D520
S504 S510
S515
D513
D512
A501
D530
D526
D524
S517
Q503
D518
IC51
D529
D528
S516
D508
IC53
CN9
X09 F/8
ST
ANDBY
S1
WH1
S3
WH2
S2
X09 G/8
CN6
X09 H/8
P3
E1
J7
CN10
AC OUTLET
R L
SPEAKERS
CONTROL
SYSTEM
PRE OUT
PLAY IN
MONITOR
REC OUT REC OUT
PLAY IN
MD/TAPE
PLAY IN
AUX
CD
PLAY IN
PHONO
PHONES
STANDBY
MULTI
CONTROL CONTROL
INPUT
CONTROL
VOLUME
AUDIO UNIT
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