Kenwood KAC-6201 User manual

© 2002-11 PRINTED IN JAPAN
B53-0009-00 (N)3540
POWER AMPLIFIER
KAC-6201
SERVICE MANUAL
25
Accessory
(W01-1607-05) Screw set
(N99-1587-05)
Fuse
(F52-0014-05)
Heat sink
(F01-1725-01)
Dressing panel
(A21-4266-02)
25

3
BLOCK DIAGRAM
ST/L+R/L(MONO)
(12dB/oct)
+LB
+HB
-HB
IC1(3/4)
L
R
SP
SP
HPF
HPF
S2-1
R
L
(4
60W)
HPF/OFF/LPF
MUTE Q1,2
S1
200mV
CONVERTER
DC/DC BATT
Q36-40
INPUT SENS.
IC1(1/4)
IC1(2/4) IC1(4/4)
(12dB/oct)
150Hz
IC3
LPF
S2-2
(12dB/oct)
150Hz
80Hz
HPF/OFF/LPF
P-CON
T1,IC4,Q17,Q18
Q19,21
KAC-6201

3
ADJUSTMENT
No. ITEM INPUT OUTPUT RECEIVER ALIGNMENT ALIGN FIG.
SETTINGS SETTINGS SETTINGS POINTS FOR
Connect a cassette receiver or CD receiver.
IDLE Connect a DC voltmeter VR2 (R ch)
1CURRENT - between TP1 (L/R) VOLUME : 0 VR3 (L ch) 2.5mV (a)
and J1(SP.OUT, L+/R-) (X09-)
VR2 (R)
VR3 (L)
TP1 R
L
DC voltmeter
(a) 2.5mV
DC voltmeter
(a) 2.5mV
++
SP. OUT
J1
LR
KAC-6201

4
ABCDE
1
2
3
4
5
6
7
PC BOARD (FOIL SIDE VIEW)
R58
R73
C41
R67
C42
C40
C37
R56
R68
R62
R69
R66
W65
W96
B
R54
E
BE
EB
R53
E
R167
R63
R65
R60
B
R59
W86
W87
W97
W98
R179
R70
EB
C
R1
B
R175
W91
W94
E
W92
W90
W89
C53
C49
R81
C51
R180
BE
EB
R87
W62
W80
C73
W81
BE
R1
B
B
R95
C57
W79
C55
R89
EB
C71
W78
R109
E
W63
W61
B
R113
C75
R126
GSDSGD
C50
R122
W20
W19
TH1
R99
W75
C48
C77
R57
B
W37
C38
R168
W34
W35
W95
W33
W32
W36
W88
R91
R83
C59
R85
R79
R161
W74
R75
R74
W71
W73
R98
W29
W30
W31
R124
R123
R125
T1
W28
W27
R82
E
R84
E
W18
C60
R94
R78
R90
W15
W17
W16
R86
B
B
R80
TP1
L
W76
W77
R105
R107 C61
EB
R97
R93
C63
R103
W72
W60
W57R101
E
W58
W59
VR3
L
B
R100
C56
C62
B
R92
W69
E
W56
C64
R21
E
W54
W55
B
W53
R102
C58
R106
W68
R104
R96
R88
BE
C74
R
VR2
E
W23
W22
W26
W48
W21
C70
C84
C100
E
R178
C82
B
W12
C46
W13
W14
W11
C45
L1
W129
R55
C47
W3
W4
W5
W2
W1
C67
R127
R114 W43
R176
W66 W52
EB
R172
W67
B
R108
W44
W51
W50
W49
R112
R174
C72
B
W47
W64
E
W45
W46
E
W41
W8
W9
W10
W7
W6
W42
B
R128
W39
C68
W38
R164
EB R163
W40
EB
R166
Q11
Q3
D37
Q35
D27
D28
D32
D34
Q36
Q19
D33
D19
Q21
D41
Q5
Q29
D17
D39
Q13
Q17 D13
D14
D26
Q18
Q37
Q40
D7
D12
D8
D11
D35
Q4
Q6
Q7
D29
Q9
Q30 Q10
D30
Q8
D25
Q26
E3
D15
Q24
D38
D42
Q12
D40
Q14
Q32
Q39
Q38
X09-5650-10 A/3
(J74-1043-31)
SPEAKER OUTPUT
FUSE
(25A)
POWER IN
BATTGNDP.CONLEFT
J1
RIGHT

5
JIHGF
1
2
3
4
5
6
7
X09-5650-10
IC Q Address
14G
35G
42F
16F
25F
34E
44D
54E
64D
75E
85D
96D
10 6D
11 5E
12 5C
13 5E
14 5B
17 2C
18 2C
19 3E
21 3E
22 3G
23 4F
24 5C
25 5F
26 4C
29 6E
30 6C
31 6F
32 6B
35 4E
36 2E
37 2E
38 6B
39 6B
40 2E
41 4F
41
41
C26
R34
C17
C14
C27
C25
C28
R38
R37
R44
R41
R2
W111
W110
C1
C2
C5
R42
R1
R43
R4
1
4
E
B
R159
W109
C6
1
R160
R3
4
R9
R10
W108
C8
R46
C13
R6
1R48
C7
R49
R47
R15
R5
C15
7
R11
R12
W105
W106
R157
VR1
W126
W125
W124
W123
W122
W93
W144
W116
W115
R31
W118
W120
W119
W121
W117
W113
C79
R45
C19
R33
R35
C20
R158
5
C22
R36
C21
W128
R22
8
R32
W127
R8
R177
C43
C39
R77
R72
W107
R51
R71
R52
R76
16
9
R64
W112
R61
W84
W100
R19 C11
R14
C12
14
R18
W102
8
R13
R7
W101
R17
C85
R16
W99
W130
E
W85
C54
R73
1
C41
R67
C42 8
C40
C37
56
R68
R62
R69
66
W65
W87
W97
W98
R179B
R70
EB
C81
R171
EB
R175
R115
C83 R20
R27
R29
4
W104
R21
W103
C18
R30
R28
1
C16
W83
R26
B
R25
R24
E
C80
W82
R23
BE
E
2
80
BE
R173
EB
B
OPERATION
FILTER SENSITIVITY
J2
WH1
J3
WH2
X09 B/3
IC3
INPUT
X09 C/3
CN1
Q22
D10
D9
CN2
D1
D2
D4
S2
S1
MONOST
ON
OFF
D37
Q23
D36
D18
D31
IC4
IC1
D3
Q41
Q35
D28
D32
D41
Q2
Q25
Q31
D16
Q1
29
D17
D39
RL
LINE IN LEFTRIGHT
SPEAKER LEVEL
INPUT
Refer to the schematic diagram for the values of resistors and capacitors.