KENWOOD KMFX9000 Service Manual

Cover page of KENWOOD KMFX9000 Service Manual

Service Manual for KENWOOD KMFX9000, downloadable as a PDF file.

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background image
STEREO POWER AMPLIFIER
KMF-X9000/X9000-S
MX-5000
SERVICE MANUAL
© 2001-10 PRINTED IN KOREA
B51-5760-00 (K/K) 3119
BRIDGEABLE
POWER AMPLIFIER
Panel *
(A60-)
Badge
(B43-0322-04)
Slide switch
(S62-0099-08)
Cabinet *
(A01-)
* Refer to parts list on page 10.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
Window
(B03-3905-08)
Button
(K29-8144-08)
Terminal RCA
(E63-1263-08)
Stopper
(J42-0354-08)
AC power Cord ass'y *
(E30-)
Terminal board
(E70-0162-08)
Terminal RCA
(E63-1262-08)
Slide switch
(S62-0069-08)
Jack
(E11-0952-08)
70%
background image
STEREO POWER AMPLIFIER
KMF-X9000/X9000-S
MX-5000
SERVICE MANUAL
© 2001-10 PRINTED IN KOREA
B51-5760-00 (K/K) 3119
BRIDGEABLE
POWER AMPLIFIER
Panel *
(A60-)
Badge
(B43-0322-04)
Slide switch
(S62-0099-08)
Cabinet *
(A01-)
* Refer to parts list on page 10.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
Window
(B03-3905-08)
Button
(K29-8144-08)
Terminal RCA
(E63-1263-08)
Stopper
(J42-0354-08)
AC power Cord ass'y *
(E30-)
Terminal board
(E70-0162-08)
Terminal RCA
(E63-1262-08)
Slide switch
(S62-0069-08)
Jack
(E11-0952-08)
70%
background image
KMF-X9000/MX-5000
2
Audio cord (1)
(E30-0505-05)
Stereo mini-plug cord (1)
(E30-2733-05)
Speaker terminal cover (1)
(A09-1247-08)
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES .................................. 2
ADJUSTMENT ............................................................2
PC BOARD ................................................................ 3
SCHEMATIC DIAGRAM ............................................ 7
EXPLODED VIEW ......................................................9
PARTS LIST..............................................................10
SPECIFICATIONS ......................................Back cover
Contents
Accessories
ADJUSTMENT
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
AMPLIFIER
SETTINGS
ALIGNMENT
POINT
ALIGN FOR
FIG.
1
IDLE CURRENT
­
Connect a DC voltmeter
between pin 1 and pin 2
of connectors.
CN107 (Lch)
CN106 (Rch)
No signal input
VR107(L)
VR106(R)
20 mV
Unless otherwise specified, the individual switches should be set as following:
POWER: ON
background image
ACE
G
I
BD
F
H
J
2
1
3
5
7
4
6
J140
J233
J232
J230
J103
J132
J126
J243
J205
J223
J130
J172
J174
J153
J104
J105
J1
10
J101
J106
31
3
1
J109
J175
J120
J173
J226
J221
J119
J124
J125
J121
J131
J142
J107
J228
J220
J235
J182
J217
J163
J191
J214
J159
J216
J213
J199
J196
J219
J234
J215
J201
J209
J242
J108
J218
J207
J206
J208
J150
J197
J190
J192
J204
J184
J183
J193
J200
J198
J210
J224
J186
J165
J185
J187
J141
J143
J222
J166
J170
J168
J169
J241
J177
J154
J102
J180
J178
J181
J240
J236
J238
J149
J164
J237
J229
J147
J151
J148
J1
17
J146
J1
13
J
111
J231
J1
15
J188
J129
J161
J21
1
J123
J135
J136
J138
J212
J139
J137
J162
J156
J227
J160
J239
J157
J203
J134
J127
J133
J155
J152
J176
J171
J225
J1
18
J250
J244
J245
R193
C143
C179
C180
R134
C124
C125
R260
R261
R263
R262
C169
C185
R264
R265
R209
R191
R259
RY103
R178
C171
C142
C174
C140
C141
R252
R251
R189
R250
R190
R176
R248
R240
R245
R249
R247
C181
R246
R183
R181
R180
R185
C187
R184
C145
C144
R179
R253
R242
R241
R192
R174
R177
R170
R172
R254
R148
R150
R152
R154
R156
VR102
C136
R164
R160
L104
R166
R162
R175
R173
R171
R168
C137
VR101
R155
R161
R165
R159
R163
R151
R153
R147
R149
RY102
C150
R142
R232
C182
R221
R222
R186
C146
C165
C166
R223
R224
C168
C167
R226
R225
R133
C1
13
R117
R1
19
R237
R235
C1
15
R121
C117
R123
R131
C1
19
R129
R135
C121
R127
R125
C123
C173
R169
R146
R139
R137
C129
C131
C139
R255
C133
R143
C127
R157
C135
R167
L103
C170
C172
R230
C160
R204
R202
R203
R207
R212
R210
R145
R205
C155
C156
R208
C159
R258
R211
R206
R194
R213
R216
R215
C161
C162
R244
R201
C154
C153
R198
R200
C148
C149
C147
R231
BD101
C183
C177
R196
R195
C152
R243
C164
C163
R219
R220
R188
C158
R234
R233
R1
16
R1
15
C176
C134
R158
C126
R228
R144
C132
R141
C138
C130
C128
R138
R140
C157
C178
R197
C122
R126
R128
C120
R136
R130
R229
C1
18
R132
R124
C116
R122
C1
14
R236
R238
R120
R118
C1
12
C151
R
Y101
R109
R110
14
85
C108
C102
C101
C109
R106
C106
R108
C107
C175
R107
C105
R103
R101
R102
C103
C104
R105
R104
R239
R256
C184
C186
R257
R268
A
A
B
E
B
BB
C
E
EE
BB
C
EE
B
B
C
E
1
2
E
BB
C
E
E
12
1
2
1
1
9
2
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
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
E
B
E
B
E
B
E
B
E
B
E
Q126
D107
D105
Q149
Q148
ZD1
13
ZD1
14
CP103
CN107
Q120
Q117
Q116
D106
D133
D1
13
D
111
Q1
19
Q115
CN106
Q118
BTL
STEREO
6
OVER
THX
2
NON
THX
SPEAKERS
MONO/BTL
INPUT
R
L
D115
D1
10
D109
D1
14
D1
12
Q122
Q121
D136
Q150
Q146
Q147
Q151
D132
D108
Q125
Q127
D129
D1
18
D117
D116
D130
Q137
ZD123
ZD105
D124
Q152
ZD130
Q129
ZD121
ZD127
ZD103
Q153
Q131
ZD1
19
D104
Q114
Q155
Q123
Q110
Q109
Q111
Q113
D103
D101
ZD115
CP101
Q154
Q135
D135
D102
Q104
Q108
Q107
Q103
ZD106
ZD1
16
Q140
Q128
Q139
Q138
Q133
Z
D
111
ZD1
12
ZD102
ZD101
ZD1
10
ZD109
D128
D127
Q132
Q130
ZD107
ZD108
ZD124
ZD126
ZD104
Q145
Q106
Q136
Q134
ZD125
Q143
Q141
Q101
D131
Q105
Q102
IC101
CN105
SW101
SW102
JACK102
JACK101
JACK103
D137
Q124
CP102
Q112
ZD120
CN104
Q142
MAIN BOARD
7020-06136-001-0
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
E
B
E
B
E
B
E
B
E
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
3
4
background image
K
LN
P
R
T
MO
Q
S
2
1
3
5
7
4
6
C31
1
LED304
LED301
R326
R323
R324
R321
R322
LED302
LED303
7020-06137-001-0
POWER SEL BOARD
SW303
SW304
CP301
7020-06137-001-0
POWER SW BOARD
SW301
CP303
7020-06137-001-0
LED BOARD
CN302
W309
W308
W306
W307
F303
F302
W305
110-120V
110-120V
220-240V
220-240V
T8AL
250V
RD
WH
BL
BK
BK
WH
T5AL
250V
J503
J504
J501
J502
ZD302
ZD301
Q304
Q306
7020-06137-001-0
u-COM BOARD
JACK301
POWER SW
AC CORD
D305
Q301
D303
D301
D302
D304
Q302
D306
IC302
Q308
Q307
Q305
CN301
CP302
Q303
IC301
D309
D308
CONTROL
RELAY
LED306
STANDBY BOARD
7020-06137-001-0
CN303
L
R329
R336
R335
R314
R327
C313
R319
R302
R301
F301
W31
1
W301
W303
W310
RY301
T501
C303
C301
C302
R303
C304
1
19
12
12
6
R304
R305
C305
C308
R315
W302
12
12
C310
C309
R309
X301
R334
R318
R317
R320
R31
1
W304
R333
C312
C327
28
15
1
14
C325
C324
C328
C323
C326
R328
ZD303
CLAMP
UNI
RIS
4.19MH
NEUTRAL
LIVE
S8A 250V
Y
TYPE
ONL
Y
Y
TYPE
ONL
Y
TRANS
T503
TRANS
T502
J304
J306
J318
J308
J301
J321
J302
J303
J305
J310
J31
1
J307
J309
J314
J316
J317
B
E
1
6
B
E
B
E
B
E
B
E
B
E
B
E
B
E
GO
I
J313
J315
J323
J319
J322
D307
J350
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
5
6
background image
ACE
G
I
BD
F
H
J
2
1
3
5
7
4
6
KMF-X9000/MX-5000
Y08-5790-10
Rch
Lch
JACK102
CP101
CN104
CN105
CP302
CP302
IC101
(2/2)
(1/2)
IC101
D131
Q143
MONO/BTL
INPUT
D135
ZD1
16
MUTE
Q101
Q103
Q105
Q107
1st
D101
Q113
D103
Q109
Q111
2nd
Q121
D107
Q119
D105
D109
Q115
Q117
D133
D113
D111
R
L
SPEAKERS
Q110
Q102
MUTE
D102
1st
Q106
Q108
Q104
D104
D108
Q118
2nd
Q112
D132
Q114
Q116
Q122
D114
D112
Q120
D106
D110
CN107
Q145
CN106
Q124
Q125
Q123
CN103 CP103
M
ZD1
14
Q126
Q142
CONT.
MUTE
Q141
Q153
SEL SW
2.6 HM
ZD1
15
ZD1
10
ZD109
Q139
Q140
Q149
Q150
ZD1
10
ZD1
12
Q137
ZD119
ZD106
Q152
Q154
Q138
D129
ZD104
ZD120
ZD103
D124 ZD127
ZD121
ZD123
ZD108
ZD107
D128
ZD105
D127
ZD126
ZD125
ZD124
Q135
Q134
Q132
Q131
Q133
Q136
Q129
Q146
Q147
Q148
D137
Q151
Q127
D1
15
JACK103
ZD1
13
SW101
BD101
D1
16
D117
D118
Q128
ZD101
ZD102
Q130
POWER AMP
CONT.
ON/OFF
FAN
CURRENT
ADJ.(Rch)
BIAS
ADJ.(Lch)
CURRENT
BIAS
D136
JACK301
RELAY
CONTROL
Q305
Q304
Q306
Q307
Q308
Q303
D306
ZD301
ZD302
Q302
D305
Q301
D301
D303
D304
D302
CP104
CP105
W304
W303
SW301
W301
A
B
A
B
(K,P,E,T)TYPE
W305
W306
CP104
CP105
SW303
W301
W302
(Y)TYPE
SW304
W302
CP303
LED301
LED302
LED303
LED304
LED306
CN303
B LINE
B LINE
GND LINE
SIGNAL LINE
IC301
: HD404341RD34S
(u-COM BOARD)
Q303
: DTC124ES
Q304~308 : DTC114ES
D301~304 : 1N4007
D305-309 : 1SS133
ZD302
ZD301
: MTZJ5.1
: MTZJ6.2
Q302
: KSC2316-Y
Q301
: 2SC1740SR
: NJM4565DD
(MAIN BOARD)
IC101
: KSA992F-X
: KTC2874B
Q101,102
Q103-108,113,114,121-123,128,
: KSC1845F
: TRAIT5N
: TRAIT5P
Q115,116
Q117,118
Q109-112,119,120,124,125,
: DTC124ES
: 2SC2026
: 2SC1740SR
: DTA143TS
Q127,143,145,149-152
Q135,141,146-148,153
Q134
Q126,130,137,139
131,133
: KTA1046Y
: DTA114ES
Q142
Q138,140
D101-115,124,127-129,131-133,
: 1SS133
D116-118,130
: 1N4007
135-137
: MTZJ11B
ZD101,104,106,119,120
ZD102,114
: MTZJ13B
: RD22ES(B)
: MTZ15B
ZD105,107
ZD108
ZD109-112
ZD113
: MTZJ8.2B
: MTZJ15B
: MTZJ15B
ZD103
: MTZJ5.1B
ZD115,116,123,125
IC302
: KIA7042P
POWER
CN301
AC IN
CP301
+15V
AVR
BIAS CURRENT
(Lch)
(Rch)
BIAS CURRENT
-15V
AVR
+23V
AVR
SW102
JACK101
Q155
ZD130
POWER SW BOARD
D130
D307
ZD303
POWER SW BOARD
SW301
POWER
CP301
D309
D308
ZD121,124
: MTZJ6.2B
ZD303
: MTZJ2.7
ZD126,127
: MTZJ12B
ZD130
BD101
: MTZJ2.7B
: D5SB20
129,155
Q132,136,154 : 2SA933S
1
2
3
4
5
6
7
8
9
FAIL ON/OFF
FAN H/L
10W
1W
MUTE
RELAY POWER
GND
PROTECTION
SP RELAY
3
2
1
1
2
3
9
8
7
6
5
4
3
2
1
SP RELAY
PROTECTION
GND
RELAY POWER
MUTE
1W
10W
FAN H/L
FAN ON/OFF
1
2
3
4
5
6
BLUE LED
BLUE LED
BLUE LED
BLUE LED
STAND BY
VCC
1
2
3
4
5
6
BLUE LED
BLUE LED
BLUE LED
BLUE LED
STAND BY
VCC
1
2
100
R101
R102
100
3.3u50
+
C175
1K
R103
100P
C103
100K
R105
100K
R104
100P
C104
6
5
8
7
2
3
4
1
4P
C106
4.7K
R108
100P
C102
100P
C101
4P
C107
270K
R107
100P
C105
C108
100P
C109
100P
R109
470
470
R110
4.7K
R106
47K
R233
4.7K
R234
3.3K
+
C176
47u35
R116
470
47K
4.7K
R237
47K
R235
2.2K
R119
R115
3.3u50
+
C115
1K
R127
2.2K
R125
R123
100
R121
43K
C1
17
68P
C121
5P
2200P
C119
220
R131
1.2K
R129
1.2K
R135
100P
C127
100P
C173
68P
C123
R1
17
220u10
+
C125
1.2K
R133
100P
C179
22P
C183
R139
5.6K
2K
R137
C129
0.01
220
R141
1/4W
+
C139
47u50
220
R143
220P
C133
220
R145
1/4W
C131
22P
3.3K
R159
R161
750
750
150
R155
100(B)
VR101
100 1/4W
R147
47 1/4W
R149
47 1/4W
R151
100 1/4W
R153
R157 36K
C135 4P
R253 1K
R163
R165
3.3K
C137
0.01
R241 39K
47K
R167
47K
R169
47K
R171
33K
R173
4700P
C171
4700P
C174
R144
+
C112
3.3u50
2200P
220
22P
C184
R130
47K
R238
R236
4.7K
R1
18
47K
C1
16
68P
R122
43K
1.2K
100P
C180
220u10 1.2K
+
C124
R136
1.2K
R134
C118
R128
+
C114
3.3u50
R120
2.2K
R124
100
1K
R126
2.2K
R138
5P
R132
68P
C120 C122
5.6K
R140
2K
0.01
C128
C126
100P
100P
C178
R142
220
1/4W
R162
3.3K
VR102
C130
22P
R254 1K
C134 4P
R158 36K
100 1/4W
R154
47 1/4W
R152
R174
33K
R160
100(B)
47u50
C138
+
150
R156
100 1/4W
R148
47 1/4W
R150
220P
C132
1/4W
220
R168
R166
750
C136
0.01
750
47K
R172
47K
R170
47K
3.3K
R164
1
2
2
1
1
2
100
R230
18K
R229
+
C170
4.7u50
22 1/4W
R228
C172 5P
1
2
R242 39K
1
1
22
0.1
C143
0.1
C141
10 1W
R177
L103 0.8uH
R175 10 1/4W
10 1W
0.1
0.1
C140
C142
R178
R176 10 1/4W
L104 0.8uH
47K
R181
39K
R183
+
C144
4.7u50
+
C145
220u10
8.2K
R184
2.2K
R179
4.7K
R185
1
2
1
2
+
C146
47u35
+
C182
22u35
560
R221
560
R222
+
1u50
C166
4.7u50
+
10K
R223
1K
R224
C165
R239
820
1W
1/4W
R146
220
1/4W
8
9
1
2
R231
100K
+
C164
10u35
+
C163
10u35
100
R243
R219
22K
2.2K
R220
R246
10K
R245
10K
R240
4.7K
R249
+
C181
47u35
R247 33K
10K
R248
2.7K
+
C162
10u35
C161
+
10u35
R244
100
2.2K
R216
R215 22K
R21
1
5.6K
R212
390
R210
390
R209
5.6K
+
C159
47u100
+
C157
47u100
+
C160
47u100
+
C158
47u100
100
R259
100
R258
+
C156
47u35
C155
47u35
+
100
R213
R255
10K
36K
R208
36K
R205
2K
R204
10K
R203
R206
47 1/4W
47 1/4W
R207
R202
43K
2
R
Y
103
4.7K
R250
47K
R251
4.7K
R190
47K
R189
R
Y
102
R188 220
R252 220 1/4W
FAN101
1W
1W
47K
R232
1
R186
1/4W
47
R194
0.01
1
9
8
0.01
C149
0.01
C148
C177 10u100
+
R196
15K
R195
4.7K
47K
R197
+
C151
10000u
+
C150
R192
100K
R193
100K
10K
R191
R200
3.9K
0.22
R198
+
C152
220u63
+
C153
470u25
10u35
C154
+
100
R201
C147
Q115-118
VR102
VR101
R
Y
101
22K
R225
100K
R226
2.2u50
+
C168
+
C167
10u35
R256
47K
1/4W
1/4W
1/4W
1W
1W
1/4W
1/4W
BTL
STEREO
1W
15
16
17
18
19
20
21
22
23
24
25
26
27
28
R33/AN3
VCC
TEST/VPP
RESET
R00/SCK
R00/S1
R01
R02
D0
D1
D2
D3
D4
D5
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R32/AN2
R31/AN1
R30/AN0
GND
OSC2
OSC1
R23
R22
R21
R20
R13
R12
R11
R10
25
22
19
15
14
21
20
R335 1K
R336 1K
1M
R311
10
R320
R334 1K
R318 1K
R317 1K
R333 1K
R314 1K
14
15
19
20
21
22
25
1
2
3
4
5
4
5
2
3
1
+
C310
100u16
R328
10
0.01
C328
IN
2.2K
R315
C305
47u16
+
+
47u16
470
R304
R305
220
47
R303
RY301
10K
R329
X301
10K
R319
1/4W
3.3K
R302
33K
R301
R327
47
1000u25
C303
+
0.01
0.01
3
2
1
3
2
1
2
1
T502
T503
1
2
F301
4700P
C312
C301
C302
1
2
1
2
C311 4700P
2
1
3
T503
1
2
3
T502
T5AL 250V
F302
4700P
2
1
1
2
C312
1
3
2
1
2
3
F303
T8AL 250V
230V
110V
110V
230V
T501
T501
(K,P) S8A 250V
(E,T) T5A L 250V
1/4W
R326
47
+B
R321 1K
R322 1K
R323 1K
R324 1K
1
2
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
B
+B
1/4W
GND
OUT
21
C304
10000u80
80
R264
390
R265
390
3.3u50
C1
13
+
R263
220K
R261
10K
R260
2K
12K
R262
R257
10K
R268
10K
C187
1000P
C186
1000P
1/4W
C185
0.1
C169
0.1
C326
0.01
1u50
+
C309
10K
R309
C311 4700P
1
2
0.01
C325
0.01
C324
C327
0.01
0.01
C323
+B
+B
+B
+B
+B
B
+B
B
+B
B
+B
+B
+B
+B
+B
+B
B
+B
+B
+B
+B
+B
B
+B
+B
B
+B
+B
+B
B
+B
+B
B
+B
B
B
+B
B
+B
+B
B
+B
+B
+B
+B
+B
+B
B
+B
+B
+B
+B
+B
14.8V
-15.4V
23.4V
23.2V
14.9V
-2.5V
0V
0.6V
8.0V
8.6V
13.5V
-71.2V
8.6V
13.5V
14.2V
0V
0.6V
-71.2V
-71.2V
-2.5V
15.3V
74.0V
14.8V
14.8V
-2.7V
14.8V
0V
72.1V
72.6V
1.3V
-1.3V
48.5V
-72.2V
-71.2V
72.1V
72.6V
-1.3V
1.3V
48.5V
-72.2V
0V
73.2V
74.5V
73.8V
0V
75.0V
74.3V
0V
-1.2V
-75.0V
0V
39.5V
0V
0V
27.5V
75.0V
-0.6V
75.0V
74.7V
74.0V
0V
0V
0V
23.4V
FAN OFF : 0V
0V
19.9V
0V
19.9V
23.4V
FAN OFF : 4.7V
0V
0V
6.2V
6.2V
-16.1V
-15.4V
-73.8V
-72.2V
3.9V
14.8V
5.0V
5.0V
5.7V
6.3V
0.8V
14.5V
0.1V
12.8V
12.8V
-73.0V
-51.9V
0V
0V
0V
-25.1V
-73.8V
0.7V
75.0V
0V
50.0V
75.0V
23.4V
24.0V
51.6V
-39.6V
0.1V
0.6V
8.7V
73.2V
73.2V
-73.8V
-1.2V
-75.0V
0V
74.3V
75.0V
MAIN BOARD
IC301
u-COM BOARD
IC302
KMF-X9000
MX-5000
BOARD
STANDBY
BOARD
LED
CAUTION: For
continued
safety, replace
safety critical
components
only with man-
ufacturer's rec-
ommended
parts (refer to
parts list).
indicates safe-
ty critical com-
ponents. For
continued pro-
tection against
risk
of
fire,
replace only
with same type
and
rating
fuse(s).
To
reduce the risk
of
electric
shock,
leak-
age-current or
resistance
measurements
shall be car-
ried
out
(exposed parts
are acceptably
insulated from
the supply cir-
cuit) before the
appliance
is
returned to the
customer.
The DC voltage is an actual
reading measured with a
high impedance type volt-
meter with no signal input.
The measurement value
may vary depending on the
measuring
instruments
used or on the product.

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