Kenwood AR-404 Service Manual page 8

K L
www.freeservicemanuals.info
PC BOARD (Component side view)
AC OUTLET
1
J8
2
3
X09 G/9
H.P.
C61
C62
4
PHONES
X09 C/9
5
POWER
X09 F/9
2 1
6
7
POWER SW
Refer to the schematic diagram for the value of resistors and capacitors.
M N
AUDIO UNIT
X09-6410-10 A/9 (J70-1366-11)
J5
P2
W12
CN17 CN18
F3/W6
1
15
14
F1
CN15
CN16
1 2
CN13
CN14 F2
E2
WH4
W1
W2
W199
W200
1 2
6 W4
T1 C111
W23
R114
D17
R112
Q37
E B
P1 R113
C78
D19 W20
W15
B E
W24
R111
Q38
-30VAVR
R209
+5.6VAVR
5
X09 B/9
R569 R578
X502
1 16
4.332Mhz
R564
C528
C527
C510
8 9
L502
ED51
4 1
WH52
E501
4
IC52
2
3
1
5 8
W5
WH51
R545
1 3 R108 R546
R572
R107 R567
MULTI CONTROL
B SP
A SP
S512 S501
O P
SPEAKERS
SYSTEM CONTROL
W26
L R
C77
C72
C71
R151
C74 J6
C73
R152
W34 C76
Q29
E B
R128 C94
L2
R104
C119
R126
Q47
E B
R125
W170
C117
B E
W52
R122
Q42
B
D24
E
L1
D27
R120
D25
C99
C43
D26
C67
2
1
Q15
D37
C63 E B W68
C57
D39
W25
R97
W63
W65
C47
W66
B E
Q1
C88
VR1
R85
R95
Q25
E B
BIAS CONT.
Lch
Q21 Q19
1 1 5
R544 R543
R542
W28
W36
W16
W17
1 2 3
W61
W7
S511
S505
Q502
S514 TA/NEWS
PTY
R504
E B BALANCE P.CALL
DIMMER
R583
W39
S518
C519
W174
W18
W43 W106
S503
W108
C512 S502
S.DIRECT
W172
W19
SOUND
W50 W164
S504 S510
BAND
AUTO
9
Digitized in Heiloo Netherlands
Q R
TAPE2/MONITOR MD/TAPE1
PRE OUT PLAY IN REC OUT PLAY IN REC OUT
J4
5 6 3 4 1 2 5
W77
J3
W79
C23
W76
R23
R105
B E
8 1 R31
R103
Q44 R35 R29 R30 R32
IC4
W78
W140
R200 R199
15VAVR
C84
C83
C115
W83
C90
14 1
C116
W85
W86
IC3
W84
C89
15 28
D18
INPUT
A MUTE
C118 SELECTOR
C27
10dB ATT
R136
Q34
W141 W94
C114
R133
R45
R43
R47
R41
R137
R42
R44
W113
R134
R183
R206
W107
R187
C48
R46
R66
D1
C64
D6
Q16
R158 W118
E B
C87
W112
R186
E B
W119
Q2 R164
R163
A CLASS
PROTECTION
D31
R77
R96
R102
R101
D32
5 Q22 1 5 Q20
A501
W110
C526
W111
R517
R518 1 3 R523
R522 W179
R519
28 29 30
R520
W177
1 30
100 31 8MHz
C541
IC51
81 50 W183
R582
80 51
R586
R568
R577
W150 W157 C509
S513 Q503 C504
RDS DISP. W158
W152 C545 B E
P.CALL W154
R536 R574
R515
W145 D508
R559
W129 R573
D526
IC53
R505 R561
S506 D524
C549
I G O C514
MONITOR
W182 D530
C507
R502
INPUT SELECTOR
S515
MEMORY
S T
12/11/2017
AUX CD
PLAY IN PLAY IN PHONO
1 2
6 3 4 1 2
J1
J2
R3
R27 R28
R203
R5
C7
C8
W139
R7
R8
C31
C16
W153
IC1
1 8
PHONO
EQ
R141
R142
C137
E.VOLUME
R49
R50
C134
65 80
R73
R74
64 1
R37
R38
R182
R83
R84
C108
R39
IC2 R40
C34
C30
C129 C128
R167
C120
41 24
C132
40 25
C127
C130
D4
CN8
VR2 2 30
1 31
W64
W156
W155
BIAS CONT.
Rch
1
VOLUME
CONTROL
X09 I/9
S516
CN21
1 3
WH53
1 3
WHT
C539
C511
C525
R576
C517
R581
CN9
37 1
36 2
10