kac-959.pdf

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POWER AMPLIFIER
KAC-959
SERVICE MANUAL
© 2001-3 PRINTED IN KOREA
B51-7761-00 (K) 3579
GND
1
1
L
1
100
80
70
150
2
0.5
2
0.5
2
3
4
(MIN)5
0.5
3
3
170
200
5/4/3 CHANNEL
POWER AMPLIFIER
4
(MIN)5
0.3
0.2(MAX)
OFF
15 0Hz
80Hz
A.CH HPF
OFF
15 0Hz
80Hz
B.CH HPF
4
(MIN)5
0.3
0.2(MAX)
R
0.3
0.2(MAX)
STEREO
OP ERATION
B SUB
MONO(Lch)
50
SENSITIVITY(V)
A.CH INPUT
SENSITIVITY(V)
B.CH INPUT
SENSITIVITY(V)
SUB.CH INPUT
FREQUENCY(Hz)
SUB.CH LPF
A
A
B
A
B
SUB
SELECTOR
INPUT
INPUT SELECTOR
LINE IN
A
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KAC-959
ADJUSTMENT
No
ITEM
INPUT
SETTINGS
OUTPUT SETTINGS
TUNER
(RECEIVER)
SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
FIG.
Connect a cassette receiver or other receiver.
1
IDLE
CURRENT
Connect a DC voltmeter to
CN7/CN8 and J4(SP.OUT,
L+/R-) in X09- UNIT
Volume : 0
(A)
VR101(Lch)
VR102(Rch)
(B)
VR201(Lch)
VR202(Rch)
After sufficient aging adjust
to 2.0mV
(a)
2
IDLE
CURRENT
Connect a DC voltmeter to CN7
in X08- UNIT
Volume : 0
(SUB)
VR401
After sufficient aging adjust
to 2.0mV
(a)
(a)2mV
(a)2mV
SPEAKER
OUTPUT
SPEAKER
LEVEL
INPUT
L
R
B ch
FUSE
P.CON.
BATT.
GND
L
R
A ch
DC VOLTMETERS
2mV
(a)2mV
(a)2mV
A-Lch
A-Rch
B-Rch
B-Lch
CN7
CN8
VR102
(A-Rch)
VR202
(B-Rch)
VR201
(B-Lch)
VR101
(A-Lch)
(X09-)
CN7
VR401
(IDLE ADJ.)
(X08-)
(a)2mV
708538962.047.png 708538962.048.png 708538962.049.png 708538962.050.png 708538962.051.png 708538962.052.png 708538962.053.png 708538962.054.png 708538962.055.png 708538962.056.png 708538962.057.png
A
B
C
D
E
F
G
H
I
J
PC BOARD (Component side view)
PREAMPLIFIER UNIT
1
X08-4080-10 A/2 (J74-1031-11)
R243
R244
(X08-)
Ref. No. Address Ref. No. Address
IC1
R242
W6
R241
W14
D209
D210
R141
R143
C124
C123
Q102
D109
EB
EB
3C
Q108
2E
C236
VR1
R142
R255
C235
R256
IC2
4C
Q109
3F
EB
R257
R258
EB
R352
C136
C135
IC3
6C
Q110
3E
R139
R140
R339
BE
B
E
R155
EB
A.CH
INPUT
C118
R156
EB
R158
R157
IC4
2C
Q201
2G
W154
2
R128
BE
BE
1
SENSITIVITY
R254
EB
R253
2
EB
IC5
2D
Q202
2G
Q108
EB
EB
W46
C229
C230
14
8
14
8
R153
C233
C234
IC6
6E
Q203
2F
R125
R154
R251
R261
R249
R252
R262
R250
EB
EB
C129
7
IC4
IC5
C130
Q1
6E
Q204
2G
R245
8
R246
C134
R152
R162
R150
R151
A.CH
HPF
C133
R161
C227
W131
C228
W143
Q2
7D
Q205
2F
1
7
1
7
W47
R145
R349
R146
BE
BE
R247
R248
R149
Q3
6D
Q206
2G
R228
C128
C127
BE
W117
C226
R148
R147
BE
R238
Q4
7D
Q207
2G
C218
C237
1
R260
C126
C125
2
Q5
6D
Q208
2G
C11
R259
C138
C137
C225
W94
Q6
6E
Q209
2G
B.CH
HPF
C223
R336
C224
D305
7
Q7
6E
Q210
2G
C322
8
R334
Q8
6E
Q301
3E
3
VR2
EB
C324
R105
C115
R332
Q9
6E
Q302
3E
R333
14
8
C4
Q10
6E
Q303
3E
B.CH
INPUT
SENSITIVITY
W76
BE
EB
R7
IC1
W77
Q11
6E
Q304
4E
C5
R106
1
7
EB
R329
R5
Q12
7F
Q307
3E
C321
W60
R331
D2
D4
D1
D3
Q13
6D
Q401
6I
C323
R4
C116
A
R335
Q14
6D
Q402
6H
R327
INPUT
SELECTOR
R330
R8
1
C320
Q101
2F
Q403
6H
BE
C6
R6
2
R328
R326
A B
W57
W56
C325
C326
R47
Q102
2E
Q404
6H
C335
7
Q103
2F
Q405
6H
C328
C329
8
C327
C330
Q104
2E
Q406
6I
4
1
R101
R205
R341
R343
R345
R347
A
C104
R342
Q105
2F
Q407
6G
R102
14
8
W73
W74
2
R2
R344
Q106
2E
Q408
5I
IC2
C2
R346
R348
Q107
2F
Q409
6F
3
R201
R206
1
7
C334
C331
C332
C333
B
W18
W59
R202
4
R325
5
R301
C216
SUB
6
R302
J1
VR3
W16
X08 B/2
5
C315
CN6
W69
W64
W93
W78
W91
W81
W103
W104
W105
W106
W92
W79
W45
W98
W132
W133
W134
W135
SUB.CH
INPUT
SENSITIVITY
C316
W80
W90
W150
W151
W158
W159
1
6
C21
C319
E1
R40
Q408
R401
R405
CN5
CN4
IDEL ADJ.
R406
W29
W5
K1
6
2
6
2
CN7
12
R407
5
1
5
1
C403
OPERATION
IDLE SUB
14
8
R44
W89
W95
R416
Q13
Q14
D6
Q401
IC3
EB
EB
EB
R11
R27
R26
1
7
R25
A B
BE
D8
R404
6
W70
INPUT
SELECTOR
EB
R12
C16
C19
EB
W96
EB
W144
R21
R29
W97
SUB
R18
R19
R20
VR4
D15
D12
16
9
R15
R35
B
E
B
E
Q406
R22
R410
BE
R36
R37
R13
BE
IC6
R411
W43
W136
R42
R41
SUB.CH
LPF
FREQUENCY
W169
D9
1
8
W113
R417
W138
R14
R23
D10
D7
TH1
C24
C17
C26
W123
R16
BE
R34
R32
C20
R419
R418
W122
D13
EB
R39
R24
R17
R43
Q12
W128
W56
7
Refer to the schematic diagram for the value of resistors and capacitors.
3
4
708538962.058.png 708538962.059.png 708538962.060.png 708538962.061.png 708538962.062.png 708538962.063.png 708538962.064.png 708538962.065.png 708538962.066.png 708538962.067.png 708538962.068.png 708538962.070.png 708538962.071.png 708538962.072.png 708538962.073.png 708538962.074.png 708538962.075.png 708538962.076.png 708538962.077.png 708538962.078.png 708538962.079.png 708538962.081.png 708538962.082.png 708538962.083.png 708538962.084.png 708538962.085.png 708538962.086.png 708538962.087.png 708538962.088.png 708538962.089.png 708538962.090.png 708538962.092.png 708538962.093.png 708538962.094.png 708538962.095.png 708538962.096.png
K
L
M
N
O
P
Q
R
S
T
PC BOARD (Foil side view)
X08-4080-10 A/2 (J74-1031-11)
(X08-)
Ref. No. Address Ref. No. Address
IC1
R244
R243
R242
R241
W6
D210
D209
W14
R143
R141
3R
Q108
2P
B
E
B
E
D109
Q102
C123
C124
C236
VR1
C235
IC2
4R
Q109
3O
R256
R255
R142
R258
R257
B
E
B
E
R352
C135
IC3
6R
Q110
2P
E
B
E
B
C136
R339
R139
R140
R155
B
E
B
E
R156
C118
R157
R158
A.CH
INPUT
IC4
2R
Q201
2N
E
B
W154
R128
1
E
B
SENSITIVITY
2
R254
R253
B
E
IC5
2Q
Q202
2N
B
E
B
E
Q108
B
E
W46
C230
C229
IC6
6P
Q203
2N
C234
C233
R153
R154
8
14
8
14
R125
R252
R262
R250
R251
R261
R249
B
E
B
E
C129
7
C130
Q1
6P
Q204
2N
8
R246
R245
IC5
IC4
R151
C134
R152
R162
R150
Q2
7Q
Q205
2N
W143
C228
W131
C227
R161
C133
7
1
7
1
A.CH
HPF
R349
W47
R145
R146
E
B
R248
E
B
R247
R149
R228
Q3
6Q
Q206
2N
C127
C128
W117
E
B
C226
E
B
Q4
7Q
Q207
2N
R238
R147
R148
1
R260
C237
C218
C126
2
C125
Q5
6Q
Q208
2N
R259
C225
C137
C11
C138
Q6
6P
Q209
2N
W94
R336
C223
B.CH
HPF
7
D305
C224
Q7
6P
Q210
2N
8
C322
R334
Q8
6P
Q301
3P
B
E
VR2
C324
C115
Q9
6P
Q302
3P
R332
R105
R333
8
14
C4
Q10
6P
Q303
3P
E
B
W76
B.CH
INPUT
SENSITIVITY
R7
B
E
Q11
6P
Q304
4P
W77
IC1
C5
R329
Q12
7O
Q307
3P
R5
B
E
7
1
R106
C321
Q13
6Q
Q401
6L
D1
D3
D2
D4
W60
R331
R4
C323
C116
Q14
6Q
Q402
6L
R335
R327
A
R8
R330
INPUT
SELECTOR
1
Q101
2O
Q403
6M
2
R6
C6
E
B
C320
R328
R326
Q102
2P
Q404
6M
C325
C326
W57
W56
A B
R47
Q103
2O
Q405
6M
7
C335
8
C329
C328
C327
C330
Q104
2P
Q406
6L
R205
R101
1
R341
R343
R345
R347
A
Q105
2O
Q407
6N
R342
8
14
C104
R102
W73
W74
2
R344
R2
Q106
2P
Q408
5L
IC2
C2
R348
R346
Q107
2O
Q409
6O
C333
C332
C331
C334
7
1
R206
R201
3
W59
W18
R202
B
R325
4
C216
R301
5
SUB
R302
6
X08 B/2
W16
VR3
J1
C315
W132
W133
W134
W135
W92
W79
W45
W98
W103
W104
W105
W106
W78
W91
W81
W93
W69
W64
CN6
W158
W159
W150
W151
W80
W90
C316
SUB.CH
INPUT
SENSITIVITY
6
1
C21
E1
Q408
R40
C319
R401
R405
R406
IDEL ADJ.
CN4
CN5
W29
K1
2
6
2
6
W5
R407
2
1
CN7
C403
1
5
1
5
OPERATION
IDLE SUB
R416
W95
W89
R44
8
14
D6
Q14
Q13
Q401
B
E
B
E
B
E
IC3
R27
R11
R25
R26
R404
E
B
D8
7
1
A B
W70
INPUT
SELECTOR
W144
B
E
W96
B
E
C19
C16
R12
B
E
R21
W97
R29
SUB
R18
R19
R20
Q406
9
16
R35
D12
D15
VR4
R15
E
B
E
B
R22
R410
R36
R37
R13
E
B
W43
W136
R411
IC6
E
B
W138
TH1
R417
W113
1
D9
W169
R42
R41 R14
R23
SUB.CH
LPF
FREQUENCY
D7
D10
C26
C17
C24
W123
R16
R418
R419
C20
R34
R32
E
B
W122
R39
B
E
D13
R24
R17
W128
Q12
R43
W56
6
Refer to the schematic diagram for the value of resistors and capacitors.
PREAMPLIFIER UNIT
708538962.097.png 708538962.098.png 708538962.099.png 708538962.100.png 708538962.101.png 708538962.103.png 708538962.104.png 708538962.105.png 708538962.106.png 708538962.107.png 708538962.108.png 708538962.109.png 708538962.110.png 708538962.111.png 708538962.112.png 708538962.002.png 708538962.003.png 708538962.004.png
 
U
V
W
X
Y
Z
AA
AB
AC
AD
PC BOARD (Component side view)
1
(X09-)
Ref. No. Address Ref. No. Address
Q1
AUDIO UNIT
X09-5400-10 (J74-1032-41)
E4
W172
E2
E3
WH6
E1
W73
6 5
1
6 5
1
4AB
Q110
4Y
W25
W74
W111
W142
W152
2
2
6
1
W209
W205
W75
W112
W143
W144
W145
W146
W153
W238
Q2
5AB
Q111
3Y
C301
W76
W113
W114
W115
W116
W117
W118
W154
W155
W156
W192
W206
W241
Q3
4AB
Q112
5Y
Q209
W77
W193
R16
R301
W84
Q4
5AB
Q113
2Y
W26
W85
W147
W148
W157
W89
W158
W159
W188
Q5
3AB
Q114
4Y
W90
W149
W189
W183
Q6
5AB
Q201
2W
W102
W103
W104
Q109
W184
W185
Q7
5Z
Q202
4W
Q205
W186
Q105
2
Q8
4Z
Q203
3W
W177
D201
W167
W260
W168
Q9
3Z
Q204
5W
C201
IDLE
A-L
W169
W197
R203
W198
Q10
4Z
Q205
2W
2
1
R21
VR101
Q11
3Z
Q206
4W
IDLE
B-L
D19
Q101
3Y
Q207
3W
Q103
W170
D23
W180
Q102
4Y
Q208
5W
VR201
R20
W230
W200
W271
W229
Q103
3X
Q209
1W
R119
W126
Q11
W266
W307
E
B
Q207 Q203
Q107
W228
W270
W224
Q104
5X
Q210
4W
W164
W98
Q9
W237
W236
3
EB
Q105
2X
Q211
3W
W9
R25
W22
W23
W67
W120
W121
C17
Q106
4X
Q212
5W
Q107
3Y
Q213
2W
W27
W181
W256
D14
W204
R18
Q108
5Y
Q214
4W
W30
B
E
W31
Q10
Q210
Q109
2Y
D10
T1
W182
D9
C15
W255
W212
Q106
Q110
W175
4
W176
W265
Q206
W173
W218
W178
W190
C202
C16
R17
IDLE
A-R
D12
Q8
VR202
W171
W258
E
B
W254
W199
B
E
W203
Q104
VR102
Q7
W235
IDLE B-R
C11
R12
W264
T2
C12
W225
W187
D20
Q204
W303
W174
W207
C3
W210
5
Q108
C2
W119
C113
Q208
W97
C114
B-ch
W41
R128
W195
IDLE
W305
R
L
R129
L
D15
2
1
R127
R 21
R24
CN3
W162
W211
R229
CN7
A-ch
C1
1
7
IDLE
D17
CN1
CN8
CN2
R227
1
7
1
7
R228
2
8
C9
W257
D16
W140
W269
2
8
2
8
W141
D1
C214
D18
W124
W150
W125
W151
C19
W302
J5
8
5
J4
10
8
7
6
5
J1
W202
CN9
CN10
6
4
1
9
4
3
2
1
1
2
3
W246
W179
GND
BATT
P.CON
R
L
SUB
R
L
X09 B/2
WH1
D209
7
Refer to the schematic diagram for the value of resistors and capacitors.
7
8
708538962.005.png 708538962.006.png 708538962.007.png 708538962.008.png 708538962.009.png 708538962.010.png 708538962.012.png 708538962.013.png 708538962.014.png 708538962.015.png 708538962.016.png 708538962.017.png 708538962.018.png 708538962.019.png 708538962.020.png
 

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