Kenwood AR-304 Service Manual page 9

F G
PC BOARD(Component side view)
Q Q
3 7 6 3 1 5 1 5 0
1
2
3
X09 H/8
X09 D/8
T E
L 1 3 9 4 2 2 9 6 5 1 3
F4
CN4
CN5
WH4
4 C112
F5
C113
CN19 CN20
X09 E/8
5
X09 G/8
X09 F/8
2
C62
C61
6
w w w
PHONES
.
7
Refer to the schematic diagram for the value of resistors and capacitors.
H I
AUDIO UNIT
AC OUTLET
X09-6310-10 A/8
J8
F3
CN17 CN18
1
W6
2 F1
CN16 CN15
1 2 F2 CN13
CN14
W1
W2
1 2
6
W4
R114
D17
R112
Q37
E
B
R113
P1
C78
R111 B E
D19
Q38
-30V AVR
R209
+5.6V AVR
X09 C/8
X09 B/8
POWER
D527
W7
W8
POWER
1
D516
D523
R547
R549
D511
W5
R539
R108
3
D515
D509
R107
R550
1 R551
D517
R548
C511
x a o
C518
y
MUTE
A SP B SP
i
STANDBY
J K
8
SPEAKERS
L R
W26
S4
C77
C71
J5 C72
R151 J6
C73 C74
R152
B W34
Q29
P2 E B
L2
R128
R104
W12
C119
E
Q47
E B
W170
B E
W52
Q42
Q40
E
D24
B
L1
D27
15
D25
R120
C99
D26
C67
1
E2
WH4
Q15
D37
E
C111 B
D39
W25
R97 C63
W165
W23
C47
B E
Q1
Q Q
3 7 6 3
W20
W15
W24
R85
R95
E B 1
Q25
2
Q21 Q19
B B E E E E B B
ED51
1
L501
W16
W17 DIMMER P.CALL P.CALL
8 1 L502
W18
W19
IC54
4
PTY TA/NEWS RDS DISP.
WH52 4
R580
9 16
IC52
1
X502
5
C508
W13
W14
u 1 6 3
W21
BASS
BOOST
S.DIRECT BALANCE SOUND
.
MONITOR
9
L M
2 4
9 9 8
MONITOR MD/TAPE
PRE OUT
PLAY IN REC OUT REC OUT
PLAY IN
SYSTEM
CONTROL
J4
J3
W77
W79
C23
C76
W76
C94 R23
R105
Q44
IC4 1
8 R31
R126
B E R103
R35
R30
W78
R32
R29
R125
R199 W140
R200
C84 C83
15VAVR
C117
C115
R122 W83
B
C90
1
C116 14
E
B W85
W86
IC3
W84
E
C89
28
15
D18
C43
INPUT
C118
SELECTOR
A MUTE
10dB ATT
C27
R136
W141 W94
R133
R45
C114
R43
R47
R41
R137
R42
R44
W113
R134
W68 R206
W107
C57 C48 R46
R66
D1
W63
W65 C64
W66
D6
Q16
R158 W118
C87 E Q2 B
W112
R186
E B
W119
R164
1 5 1 5 0 8 9 2 4
R163
C88
A CLASS
PROTECTION
BIAS CONT.
Lch
D31
R77
R96
R102
2
R101
D32
1
Q22 Q20
B B E E E E B
A501
W114
W115
1 3
R579
35
1
100
D512
BAND AUTO MEMORY
D513 81
80
1
W80
W110
R567 W120
R521
R572
S517
R585
8
W73
m
W74
W122
W75
R583
B
c o
Q502
E W123
B
E
S518 W124
MULTI
INPUT
R503
CONTROL CONTROL
N O
2
9 9
AUX CD
PLAY IN PLAY IN PHONO
J1
J2
R3
R27 R28
R203
R5
C8
W139
C7
R7
R8
C31
C16
W153
1 8
IC1
PHONO
EQ
R142
R141
C137
E.VOLUME
R49
C134
R73 65 80 R50
R74
R37 64 1
R182
R38
R83
C108 R84
R39
R40
R183 C33
C34
R187
C30 15
C129
R167 C128
41 24
40
25
C132
C127
C120
C130
D4
9 8 2 9 9
1
BIAS CONT.
Rch
CN8
1 31
W64
W155 W156
B
CP2
W129
W130 R586
CN9
R538 C532
1 31
CP1
W146
R527
C521
C529 IC53
W172
R556
R545 R509 C503 O
I
G
W145
R546 C533 E
R528
W135
R525
30
B
R524
R573
31
X501
R574
D508
W152
IC51 R552
W150 R502
R169
D529 R565
C502
W143 R558
50
R577
R570
D528
R563
51
W147
C509
R537
D518 S516
D530
W136
R568
C504
W160
R536
VOLUME
C531
C535 CONTROL
C525
D524
C534
R575
R576
10