KENWOOD KAC-629S Service Manual

Cover page of KENWOOD KAC-629S Service Manual

Service Manual for KENWOOD KAC-629S, downloadable as a PDF file.

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POWER AMPLIFIER
KAC-629S
SERVICE MANUAL
© 2000-11 PRINTED IN KOREA
B51-7710-00 (K) 3590
25
FUSE(25A)
POWER
IN
BATT.
P.CON(REMOTE)
GND
LEFT
BRIDGED
RIGHT
SPEAKER
OUTPUT
POWER
AMPLIFIER
MONO(Lch)
STEREO
OPERATION
LPF
HPF
FILTER
L
R
LINE
IN
LEFT
RIGHT
SPEAKER
LEVEL
INPUT
GND
INPUT
SENSITIVITY(V)
MAX
MIN
0.3
0.5
1.0
OFF
L
+
R
STEREO/BRIDGEABLE
AMPLIFIER
KAC-629S
MAXIMUM POWER
SCREW SET
(N99-1587-05)
ACCESSORY
(TERMINAL COVER SET)
(W01-1516-05)
40%
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POWER AMPLIFIER
KAC-629S
SERVICE MANUAL
© 2000-11 PRINTED IN KOREA
B51-7710-00 (K) 3590
25
FUSE(25A)
POWER
IN
BATT.
P.CON(REMOTE)
GND
LEFT
BRIDGED
RIGHT
SPEAKER
OUTPUT
POWER
AMPLIFIER
MONO(Lch)
STEREO
OPERATION
LPF
HPF
FILTER
L
R
LINE
IN
LEFT
RIGHT
SPEAKER
LEVEL
INPUT
GND
INPUT
SENSITIVITY(V)
MAX
MIN
0.3
0.5
1.0
OFF
L
+
R
STEREO/BRIDGEABLE
AMPLIFIER
KAC-629S
MAXIMUM POWER
SCREW SET
(N99-1587-05)
ACCESSORY
(TERMINAL COVER SET)
(W01-1516-05)
40%
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KAC-629S
2
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
BLOCK DIAGRAM
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
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KAC-629S
3
VR2 (R)
VR3 (L)
TP1
R
L
DC voltmeter
(a) 2.5mV
DC voltmeter
(a) 2.5mV
++
SP. OUT
J1
LR
ADJUSTMENT
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
RECEIVER
SETTINGS
ALIGNMENT
POINTS
ALIGN
FOR
FIG.
Connect a cassette receiver or CD receiver.
1
IDEL
CURRENT
-
Connect a DC
voltmeter
between TP1
(L/R) and J1
(SP.OUT, L+/R-)
VOLUME : 0
VR2 (R ch)
VR3 (L ch)
(X09-)
2.5mV
(a)
background image
KAC-629S
4
PARTS DESCRIPTIONS
background image
A
BD
F
H
J
CE
G
I
2
1
3
5
7
4
6
W41
R1
14
W42
W43
W44
R108
W50
W51
W52
W45
W46
W47
W66
W67
R172
R174
R176
C82
R88
R86
C58
R96
C56
W69
W68
R106
R104
W56
W55
W54
W58
W59
W60
VR3
C64
R102
VR2
W53
R100
W49
R1
12
R101
R103
W57
R105
R107
W76
W77
C62
W61
R1
13
W62
W63
R109
W78
R1
15
C71
C73
W79
W80
R95
C55
C57
W81
R89
C53
R93
R97
R85
R83
R91
R94
R84
R82
R90
W1
1
R173
R177
R171
C54
W85
R175
C81
R81
C51
C74
VR1
W1
17
W1
18
W1
19
W120
W121
W1
13
W93
C22
R36
C21
R45
R35
C20
R34
R20
R8
W84
R7
W100
R158
W105
R157
W106
R159
R160
R3
R4
R44
R41
W82
R30
R47
R49
C7
C8
R48
C14
R14
R76
R71
C1
C2
W1
10
W
111
C25
C27
C28
R51
R52
C13
C6
R68
C41
R69
R62
R66
R65
R60
W96
C40
R67
C42
R54
R53
R168
C38
C39
R70
W94
C59
R79
C49
R179
C85
W99
W15
W16
W17
W18
W19
W20
R122
C70
W12
C47
R55
C45
T1
C46
L1
W26
W48
R123
R124
R125
W36
W37
R56
R57
R61
R64
W1
12
R72
C26
R166
C75
R163
W40
R164
W39
C68
W38
R128
W6
W7
W8
W9
W10
W1
W2
W3
W4
W5
R127
C67
R178
C84
C100
R80
C50
R78
C60
W64
R92
W72
R99
R98
W75
W73
W74
R161
R87
R180
W83
R26
R27
R21
R23
C80
R28
R32
W127
W128
R22
W122
W123
W124
W125
W126
R31
W144
R33
W104
W103
W101
W102
R19
R13
R12
R11
R15
C15
W1
16
W1
15
C19
C17
R42
R43
C5
R77
C43
R18
C12
R16
C11
R17
W97
W98
W130
W88
R74
R75
W71
R37
R38
R2
W108
R5
R6
R46
W109
W107
W92
W91
W90
W89
W95
W35
W34
W33
W32
W31
W30
R63
R59
R58
C77
W14
W13
W21
W28
W27
W23
W22
W129
R126
R167
C37
TP1
RL
C63
L
R
C18
C16
R29
C79
R1
W86
W87
C83
W65
W29
TH1
C61
R24
R25
R9
R10
C72
R73
C48
EB
E
B
EB
BE
E
B
B
E
B
E
B
E
B
E
B
E
B
E
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
EB
1
4
5
8
8
14
1
7
1
4
1
8
9
16
4
1
E
B
DS
G
G
S
D
BE
BE
B
EE
12
BB
E
B
E
1
4
1
4
Q32
Q30
Q10
Q9
Q29
Q14
Q12
Q24
Q26
Q8
D30
D29
Q7
Q1
1
Q13
Q1
Q2
Q25
S2
S1
J2
WH2
X09 C/3
Q31
CN2
IC1
Q41
Q35
Q23
Q3
Q5
Q22
D1
1
Q6
Q4
D38
D12
J1
E3
Q18
Q17
D14
D13
D26
Q40
Q37
Q36
IC4
CN1
J3
WH1
D32
Q38
Q39
D8
D42
D39
D37
D41
D28
D19
Q21
D27
D35
D3
D40
D15
D7
D34
D33
D25
D18
D31
D10
D9
D1
D2
D4
D36
D17
D16
IC3
X09 B/3
X09-5160-10 A/3
(J74-1043-11)
Q19
LPF-OFF-HPF
FILTER
MONO-L+R-ST
OPERATION
INPUT
SENSITIVITY
(25A)
FUSE
BATT
GND
P.CON
POWER IN
LEFT
RIGHT
SPEAKER OUTPUT
LEFT
RIGHT
LR
LINE IN
SPEAKER LEVEL
INPUT
4
1
4
1
C26
R34
C17
C14
C27
C25
C28
R38
R37
R44
R41
R2
W
111
W1
10
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
1
R48
C7
R49
R47
R15
R5
C15
7
R11
R12
W105
W106
R157
VR1
W126
W125
W124
W123
W122
W93
W144
W1
16
W1
15
R31
W1
18
W120
W1
19
W121
W1
17
W1
13
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
W1
12
R61
W84
W100
R19
C11
R14
C12
14
R18
W102
8
R13
R7
W101
R17
C85
R16
W99
W130
E
W85
C54
R58
R73
1
C41
R67
C42
8
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
B
R70
E
B
C81
R171
E
B
R175
W91
W94
E
W92
W90
W89
C53
C49
R81
C51
R180
B
E
EB
R87
R1
15
C83
R20
R27
R29
4
W104
R21
W103
C18
R30
R28 1
C16
W83
R26
B
R25
R24
E
C80
W82
R23
BE
E
W62
W80
C73
W81
B
E
R173
E
B
B
R95
C57
W79
C55
R89
EB
C71
W78
R109
E
W63
W61
B
R1
13
C75
R126
G
S
D
SG
D
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
E
B
R97
R93
C63
R103
W72
W60
W57
R101
E
W58
W59
VR3
L
B
R100
C56
C62
B
R92
W69
E
W56
C64
R
2
1
E
W54
W55
B
W53
R102
C58
R106
W68
R104
R96
R88
B
E
C74
R
VR2
E
W23
W22
W26
W48
W21
C70
C84
C100
E
R178
C82
B
W12
C46
W13
W14
W1
1
C45
L1
W129
R55
C47
W3
W4
W5
W2
W1
C67
R127
R1
14
W43
R176
W66
W52
E
B
R172
W67
B
R108
W44
W51
W50
W49
R1
12
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
E
B
R166
Q1
1
Q3
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
D37
Q23
D36
D18
D31
IC4
IC1
D3
Q41
Q35
D27
D28
D32
D34
Q36
Q19
D33
D19
Q21
D41
Q5
Q2
Q25
Q31
D16
Q1
Q29
D17
D39
Q13
Q17
D13
D14
D26
Q18
Q37
Q40
D7
D12
D8
D1
1
D35
Q4
Q6
Q7
D29
Q9
Q30
Q10
D30
Q8
D25
Q26
E3
D15
Q24
D38
D42
Q12
D40
Q14
Q32
Q39
Q38
X09-5160-10 A/3
(J74-1043-11)
SPEAKER OUTPUT
FUSE
(25A)
POWER IN
BATT
GND
P.CON
LEFT
J1
RIGHT
RL
LINE IN
LEFT
RIGHT
SPEAKER LEVEL
INPUT
HPF-OFF-LPF
ST-L+R-MONO
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
PC BOARD(Foil side view)
5
6
Ref.
Add-
No.
ress
IC1
5C
IC3
5D
IC4
5B
Q1
5D
Q2
5D
Q3
4C
Q4
3C
Q5
4C
Q6
3C
Q7
4C
Q8
3D
Q9
3E
Q10
3E
Q11
4D
Q12
3D
Q13
4D
Q14
2D
Q17
3A
Q18
2A
Q19
4B
Q21
4B
Q22
5B
Q23
4C
Q24
2D
Q25
4D
Q26
2C
Q29
4E
Q30
3E
Q31
5E
Q32
2E
Q35
4C
Q36
4B
Q37
4B
Q38
1D
Q39
2D
Q40
4B
Q41
4C
Ref.
Add-
No.
ress
IC1
5H
IC3
5G
IC4
5I
Q1
5G
Q2
5G
Q3
4H
Q4
3H
Q5
4H
Q6
3H
Q7
4G
Q8
3G
Q9
3F
Q10
3F
Q11
4G
Q12
3G
Q13
4G
Q14
2G
Q17
3J
Q18
2J
Q19
4I
Q21
4H
Q22
5I
Q23
4H
Q24
2G
Q25
4G
Q26
2H
Q29
4F
Q30
3F
Q31
5F
Q32
2F
Q35
4H
Q36
4I
Q37
4I
Q38
1G
Q39
2G
Q40
4I
Q41
4H

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