Kenwood KAC-7204 Service manual

POWER AMPLIFIER
KAC-7204
SERVICE MANUAL
© 2008-1 PRINTED IN JAPAN
B53-0612-00 (N) 519
Dressing Panel
(A21-6640-01): (E,K type)
(A21-6641-01): (M type)
E,K type
Stereo/Bridgeable
Power Amplifier
M type
Stereo/Bridgeable Power Amplifier
Fuse (40A)
(F52-0016-05)
FUSE[40A]
P.CON
LEFT
LPF OFF HPF
RIGHT
FILTER
[MIN]
BRIDGED
POWER IN
Accessories
(W01-1606-05)
BASS BOOST
LEVEL[dB]
[MAX]
INPUT
SENSITIVITY[V]
LPF
FREQUENCY[Hz]
HPF
FREQUENCY[Hz]
LINE IN
SPEAKER OUTPUT
Screw & wrench key set
(N99-1820-05)
LINE OUT
SP LEVEL INPUT
SIGNAL SENSING
TURN-ON
Connecting cord assy
(E30-6145-05)
19cm
This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
KAC-7204
BLOCK DIAGRAM
L
-0.5dB_ATT
+16.4dB_AMP
40Hz=18dB
=15.9dB
IC10
LPF/OFF/HPF
IC7
ISO-AMP
IC8
FREQ
(50~200Hz)
IC12
R
SENS.
VOL
LINE OUT
L.P.F
L
IC1
R
FREQ
(50~200Hz)
IC7
ISO-AMP
FREQ
(40Hz)
+15.8dB
IC11
IC8
H.P.F
Bass
Boost
FREQ
(50~200Hz)
-0.83dB_ATT
+6.85dB_AMP
=6.0dB
L+
LRR+
Bass
Boost
H.P.F
40Hz=18dB
Q281,283
ATT
MUTE
Q282,284
Q242
ATT
Q215-218,610
Q611,612
OVERLOAD
DET
DC-OFFSET
DET
POWER AMP
Q241
POWER AMP
MUTE
Q201...229
Q202...226
L
SP
OUTPUT
LINE IN
(0.2~5V)
-0.83dB_ATT
+6.85dB_AMP
IC2 =6.0dB
R
(INV)
TH601,602,605
THERMAL
DET
FAN
Q609, 699
P-CON
FAN
AVR
Q1,2
D5,6
±15V
AVR
Q50,D50,52
SIGNAL
DETECTOR
IC5
±B
Q605
P-CON
PRIORITY
DC/DC
CON
40A x1
LC FILTER
BATT.
Q604
GND
POWER
ON/OFF
COMPONENTS DESCRIPTION
● AUDIO UNIT (X09-8760-10)
Ref. No.
2
Application / Function
IC1,2
Isolation circuit
IC5
DC/DC converter
IC6
Temperature ATT control
IC7
HPF
IC8
Buffer amplifier, Rch inversion amplifier
IC10,11
bass-boost
IC12
LPF
Q1,16
+15V power supply
Q2,17
-15V power supply
Q3~8
DC/DC switching FET
Q9~14
DC/DC switching FET drive Tr
Q15
Temperature ATT reference power supply
Q50,51
auto_pcon_off
Operation / Condition / Compatibility
ATT2=on by pin1=H, ATT1=on by pin7=H
Disables operation of the auto_pcon circuit when the pcon_ is connected
KAC-7204
COMPONENTS DESCRIPTION
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q201~204
Differential first stage amplifier
Q205~208
Differential second stage amplifier
Q209,210
Differential second stage current mirror
Q211,213
Temperature compensation Tr
Q215~218
Current limiter
Q220,222~227,229
Power amplifier final Tr
Q241,242
mute_Tr
Q251~258
Power amplifier driver
Q281,282
ATT2_Tr
Q283,284
ATT1_Tr
The signal level becomes -1.5dB when is ON
Q602
Mute control
ON when is pcon_off
Q603,698
Power supply for the mute_Tr
Q604
SW14V
Power supply for DC/DC_IC
Q605
Pcon control
ON by pcon=H
Q606
Over voltage detection
Turn off Q605 when over voltage is detected
Q609
Power supply for FAN
Q610
Over current protection
Q611,612
DC protection
Q613,614
Latch circuit for DC protection
Q615,616
Shock noise prevention circuit
Q617,618
Shock noise prevention circuit control
Mute_on when is ON
The signal level becomes -3dB when is ON
Hold the protection operation while the DC protection is being operational
ADJUSTMENT
NO.
ITEM
ALIGNMENT POINT
METHOD
ALIGN FOR
NOTE
1
IDLE
CURRENT
VR5 (Lch)
VR6 (Rch)
Connect a DC voltmeter between check land.
Lch: Q223_emitter ↔ W148
Rch: Q224_emitter ↔ W21
2.5mV
after 5minutes from power on
Q227
Q223
Lch 2.5mV
R245
Rch
Q224
DC voltmeter
Q220
DC voltmeter
VR5
VR6
W21 R243
+
-
-
W148
Lch
Rch 2.5mV
+
X09-876
3
A
1
B
C
D
E
KAC-7204
PC BOARD (FOIL SIDE VIEW)
AUDIO UNIT X09-8760-10 (J76-0476-11)
E
B
W147
W183
+B
W149
1
TH605
W156
W161
W134
R290
R289
S
R7
W15
W428
W16
E Q604
W131
W
C50
W288
R691
W291
W154
D50
C129
1
W123
C20
R29
2
C51
W145
C52
R62
W151
Q51
Q50
R60
W152
W155
R58
R609
SP-GND
3
W27
SP-R
R610
W157 SP-L
R693
R608
C699
4
E B
W292
W153
C19
D606
R613
R614
5
BE
R61
W143
R147
J3
7
4
C121
6
W14
W125
7
R28
BE
D607
C1
Q606
W332
R616
D611
W298
W296
W300
EB
R615
W425
Q605
D602
D605
C603
R692
W301
W426
D1
D699
C601
W5
D2
W4
W174
Q602
B E W297
W166
R604
R695
C621
R606
R603
W141
W1
R621
R620
R59
R605 B E
W294 W293
R694
BE
Q698
B
R607
R699
Q603
W173
C602
D604
W424
W423
W165
R627
BATT
W431
D603 R612
D7
W181
R611
W421
W422
D
S
W420
L1
L2
P1
W295
W418
W419
D
W417
S
Q5
W331
6
W136
D601
Q3
5
R72
W133
Q7
G
R11
W132
4.5V
W160
C11
G
R54
+15V
R626
W1
W159
W163
C8
C18
R30
W416
W415
W414
G
-15V
W158
Q4
D
SW14V
C9
W412
W411
S
D
W410
G
W162
B
R640
R8
Q6
W413
4
Q609
E
W409
W408
W182
C10
S
D
W407
G
L3
R56
W117
W120
W135
W129
W192
R55
R12
W124
W128
W137
W140
W430
W150
C617
D600
C24
W306
W144
R5
R6
-15V
C6
W122
W429
TH-GND
SP-R
W170
W175
W180
2
W178
W179
W148
CN2
SP-L
-B
W184
W185
W186
W187
W188
W189
D9
W302
W164
W190
C7
R18
R20
+B
W138
C15
W304
W169
W139
W303
R19 R23
W305
R25
R26
W168
W177
R27
BE
16
R17
R650
9
R35
W176
D609
W118
W119
W146
-B
D8
W307
C16
C17
Q8
1
IC5
Q15
3
8
BE
R10
R16
R14
W311
W406
S
D
W405
G
Q12
Q13
Q9
BE
R21
C13
BE
BE
D10
EB EB
Q14
Q11 Q10
W195
R9
R15
R13
W312 W310 R49
W427
R57
W308
R24
W313
W309
C14
R22
R34
W404
R53
W194
W193
W191
D5
B
R245
W172
W403
E
R275
W12
W171
W402
Q223
E
C600
Q227
W401
W11
W167
2
B
W93
E
R273
D6
R155
Q211
X09-8760-10
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC1
5H
IC8
5G
Q2
2F
Q7
4B
Q12
3C
Q17
2F
Q203
4H
Q208
4H
Q215
2H
IC2
5H
IC10
6F
Q3
5B
Q8
3B
Q13
3C
Q50
5E
Q204
4H
Q209
3H
Q216
5I
IC5
3C
IC11
6F
Q4
4B
Q9
3C
Q14
3C
Q51
5E
Q205
4G
Q210
3H
Q217
3H
IC6
4F
IC12
6H
Q5
4B
Q10
3B
Q15
3C
Q201
4H
Q206
3H
Q211
2D
Q218
2H
IC7
5G
Q1
2F
Q6
4B
Q11
3B
Q16
2F
Q202
4H
Q207
4G
Q213
3I
Q220
5I
F
G
H
I
J
KAC-7204
BB-G
B
C232
E
Q218
E
B
E
R216
Q222
Q226
W31
E
R274
B
W33
W24
W29
W32
Q213
R240
E
Q224
B
D204
Q216
E
B
W21
R230
R246
R282
E
W228
Q220
W202
C109
R50
W326
D52
R122
C110
R127
R129 C112
R128
D101
W201
C104
C102
R102
R121
L
R
J1
C103
R169
D102
R123
R109
C133
C149
W204
L
C111
B
D103
C101
R
W26
W211
C124
L
D104
C135
R
W203
W205
1
4
R107 C105
R103
W28
W200
R120
9
10
J2
1
2
6
R100
8
C145
C698
C140
5
IC1
R105
W245
C137 R156
4
1
R125 C113
8
5
R113
R104
HPF
R108
R106
VR1
C131
C36
R124
C134
4
C34
C106 R114
5
C115
R171 R111
W37 PIN-G
IC2
1
R153
W38
W42
R126 R170
8
5
R154
C146
W231
W62
LPF-F
C233
R238
W58
W327
W53
R168
W56
W227
W234 LPF
R160
R162
C141
R161
W282
W60
W64
W218
W223
C150 R152 R110
W285 R112
C132 C114
IC12
H/OFF/L
W208
R262
R228
C139 R158 R157
W235
C143
R258
E
Q256
W23
E
W25
B
C202
R116
C108
W226
C116
R118
C107
C117
R115
R119
4
W55
C120
R131
W241
R134
R133
W328 R132
W199
5
S6
W35
Q258
R204
C204
4
TH602
R234
R101
C223
R130
C126
C118
W69
VR2
+B
SP-R
W36
C216
C220
C206 R210
B
E
R227
R243
R211
R242
C227
W209
W212
W213
W214 R272
E
B
E
VR6
W210
C218
Q202
C201
IC7
R117
W246
W22
E
W216
R236
W219
R264
C214
B
R226
W30
W230
Q201
W34
C207
Q208
R
Q206
R206
R260
E W206
W207
B
C228
C205
R208
W40
MAX
E
W41
R212
Q204
R209
E
B
B
W196
1
3
C212
R278
C226
W59
E
W54
8
W20
R248
B
R276
W315
Q217 W215
B
C231
R231
D255
R235
D254
D260
R219
R217
B
E
W61
W232
W233
R241
E
C208
W50
W324
D295
C221
D205
B
E
R279
B
E
Q255
Q257
R223
R281
B
AGND
W330
W67
C119
W250
B
L-NF
W240
W273
R266
R265
R915
R916
D229
+15V W63
W10 R201
SENS
R218
Q210
B
W66
R151
R145
R143
R141
R139
Q252
C264
R263
R203
D296
R135
R137
E
R222
W39
C203
R163
W253
B
D261
W43
Q203
W65
4
E
C210
D152
W236
R287 R202
W249
R914
Q205
C211
BE
IC8
B
W44
W225
R224
C263
C122
1
-B
C209
E
R221
W244
W90
SENS.
Q215 W320
R247
R277
E
B
Q251
Q253
L-
D253
W68
R629
W239
Q615 R617
R667 B
W248
Q241
D203
E
B
C215
C225
W70
E
D613
Q610
E Q613
B
R662
Q209
W76
L+
8
B
W237
W260
IC11
5
8
R213
Q207
R205
W72
R142
C130
R140
W272 R146 C138
4
1
W220
IC10
5
R167
R159
C129
C127
C125
1
E
R280
R136
Q254
W49
D251
R207
W252
R165
4
W13
W73
W79 +B
W259
AMP-IN-R
W89
W91
W269
W318
BB
R147
W270
R150 R148
C121
R149
W123
W287
VR3
B
2
R220
C213
W197
C128
R423
W317
C50
W276
W283
C611
R144
W77
VR4
W257
R636
R422
C136
W288
C123
W104
BE
BE
R138
8
5
C147 C148
W100
W131
W121
BE
R600
W75
W281
W130
W88
W238
W198
W142
BE
W243
D206
R214
Q284 Q282
-15V W261
W400
W95
W262
C58
W97
Q242
R638
C615
W78
IC6
W127
W141 W286 W280
C51
R633
Q611
5
1
4
R647 R618
R602 R649 R624
C614
R646
W431
W125
C612
AMP-IN-L
W74
W268
43
Q612
R632
B
R634
B
D614
8
W314
R52
BE
R283
R648
R51
W101
R651
R652
C57
W321
C217
W242
C606
BE
R665
R643
R656
R653
W247
BE
R639
W256
R663
R659
R658
C616
W99
D612
D610
D616
Q618
D615
W254 R630
Q616
B E Q617
BE
R696
D601
R664
E
W265
Q614
R635
C609
C610
R660
C607
E
R698
R628
C618
C604
C605
R631
R661
W284 W279
W136
W258
W92
W94
D624
D617
C613
C620
C2
W96
C5
C3
W106
W105
W107
W116
R697
Q699
FAN+B
LED+B
W122
W120
Q609
R619
R622
W263
R215
W325
C608
R249
W221
R261
W71
W255 R251
1
C619
E
B
R626
D608
B
E
2
BE
W133
W134
VR5
R225
CN1
R625
W278 W277 W271
W132
R271
R668
R666
R72
+15V
R239
L
MAX
W14
R290
W87
W267
W117
-15V
W128
W124
W135
W129
R640
SP-R
R250
W52
W85
W86
SP-L
W274
+B
W51
Q283
W115
W47
R237
W84
SP-R
R232
C222
W266
-B
C230
W48
W83
R71
49
R4
R2
R74
W82
W112
R229
C219
W46
W224
D3
TH601
R3
W81
W323
W113
W114
W93
39
48
B
Q225
W45
Q281
W111
E
W80
W109
38
B
R286
R285
W110
7
Q229
E
W217
W299
W229
R233
9
6
R73
Q16
D4
W108
W275
E
Q17
R1
R275
D609
C600
B
E
B
R257
E Q1 B
E Q2 B
8
C4
1
W322
HPF-F
IN
OUT
Refer to the schematic diagram for the values of resistors and capacitors.
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
Q222
2I
Q227
2D
Q252
3H
Q257
2G
Q284
4G
Q606
6D
Q613
3G
Q618
4F
Q223
2E
Q229
2G
Q253
3G
Q258
4H
Q602
5D
Q609
3F
Q614
4F
Q698
5E
Q224
4I
Q241
4G
Q254
3H
Q281
4G
Q603
5D
Q610
3G
Q615
4G
Q225
2H
Q242
4G
Q255
2H
Q282
4G
Q604
5D
Q611
4F
Q616
4G
Q226
3I
Q251
3G
Q256
5H
Q283
4G
Q605
6D
Q612
4G
Q617
4F
7
5
A
B
C
KAC-7204
D
E
(X09-8760-10)
+15V
5 6
RR- 3 4
TP14
R128
100K
FRTP12
RR+
1 2
FR+
3
R121
2.2K
SP
INPUT
FL-
R120
2.2K
TP11
RL- 7 8
R129
100K
C111
10u50
+
C112
10u50
+
C115
10u50
+
7
4
R125 10K
C131
L
20K
R111
10K
C113
15P
C149
10K
TP22
IC2
(2/2)
10
8
4
2
+15V
C116
10u50
+
7
4
10K
100
R152
8
5
C120
6
15P
C114
R110
R124 10K
R126 10K
1
R168
C36
0.01
C132 100P
C135
10K
20K
R112
100
C150
10K
R170
TP29
C34
0.01
R100
1K
C134 100P
R105
R106
10K
TP20
IC2
(1/2)
TP18
R122 C109
100K 10u50
10
+
R127 C110
100K 10u50
8
+
FL+
2
3
4.7K
D102
TP13
J2
6
R171
100
R108
12K
TP17
R114
RL+ 9 10
10K
ISO
TP8
D103 D104
100
-15.0V
8
100P
15P
R103
C104
10u50
+
12K
C106
TP6
C103
10u50
+
10K
C124
0.01
2
R102
1K
C101
L
LINE
IN
AR AL
1000P
R
TP7
C102
LINE
OUT
1000P
R101
1K
R104
C698
0.01
5
R107
TP16
J1
R109
R123 10K
2
R169
C133 100P
1
15.0V
IC1
(2/2)
TP21
4700P
3
R153
IC1
(1/2) TP19
C140
1000P
C105
R113 TP15
4.7K
4700P
D101
15P
1
15V
3
3
4
2
15.0V
+15V
+1
R59 100K
C51
10u50
+
D203
4.7K
R239
C219
C221
C215
10u50
+
22P
22P
1.3K
C217
C213
R225
D205
D253
470P
C226
D254
R2
D25
R236
100
22P
2
D206
470P
C
Q213
C222
100
10P
Q218
Q216
C220
R290
22K
C210
VR6
470
R214
C216
10u50
+
10
R226
C214
220P
10
4
1
22P
R224
Q217
C
Q208
6.2K
C2
+B
D204
Q210
R240
R220
R289
100
6.2K
R222
1.5K 220P
C212
R212 C208
1K 47u25
+
R264 C264
C206
4700P
22K
R210
100
10K
D295
47P
R242
-13.9V
1K
1K
R208
R206
220P
22K
C204
R228
R204
10K
30K
C228
1
2
3
X09-8760-10 (1/3)
Q204
Q202
100
R235
C223
100u63
+
C202
10u50
+
150
TP3
R266
10K
11K
2
6
R265
10K
R915
24K
R280
R216 D261
D296
Q206
C2
Q215
100
C225
TP10
TP5
R
R914
TP2
10K
R916
10K
R286
R285
10K
R287
6
Q242
Q284
100
1.3K
R223
1K
D251
D152
Q282
VR5
470
6.2K
6.2K
R221
220P
1.5K
220P
C211
C207 R211
47u25 1K
+
C263 R263
100
4700P
C205 R209
1K
R207
R205
220P
C203
Q241
R233
33
Q207
C218
Q283
R213
Q205
22K
Q281
TP9
R227
TP4
30K
R283
TP1
MUTE
24K
R281
ATT
Q203
R251
Q211
C209
10P
22K
22K
11K
R203
5
Q201
C201
10u50
+
R201
L
R219
47P
3
150
Q209
C227
+
4.7K
10K
R241
2
7
10K
0.047
2
R217
2
100
3
100
FAN
1
150
1
3
R218
GND
1
FAN+B
150
2
C52
FAN+B
CN2
+B
2
-15.0V
D260 R215
1
Q51
R62
R58
10K
C50
10u50
+
R691
10K
2
C620
0.01
+B
GND
D624
4
1
2
3
1
TP78
1K
2
15V
12.5V
CN1
TP79
Q50
R60
TP51
FAN
1
R61
4.7K
D50
C611
10u50
+
R636 18K
AUTO P CON
R50
2.2K
+B
D52
R260
R234
33
100
10
F
G
H
I
J
KAC-7204
+15V
+15V
-15V
-15V
15.0V
6
+15V
2
Q224
47.3V
R147
150K
R25
6.8K
10K
C15
47u25
+
R26
150
1K
10K
R35
TP82
TP87
33K
R20
10K
0.1
R22 100K
D9
R18
1.5K
D7
R15
R16
TP66
47
R14
1.5K
TP71
4.7K
4.7K
47
R9
R10
R57
SW14.1V
TP68
47
R13
47
R56
R54
47
47
R55
47
R12
B14.4V
10K
R695
D605
4.7K
10.1V
Q605
D604
C621
0.01
R610
30K
R605
10K
33K
10K C602
10u50
+
R603
33K
18K
R608 R609
Q602
C601
33u35
+
47K
D603
D601
1K
R699
18K
R693
10K
D699
S
Q604
Q603
R627
R607
D608
C604
10u50
+
C605
10u50
+
R694
22K
R658
0.1
C616
5.6K
R659
R692
C699
1u50
+
R661
43K
D615
36K
Q698
13.4V
10
Q618
Q617
TP62
TP59
POP
NOISE MUTE
TP46
TP45
SW14.1V
R626
680
D609
R640
1.5K
R625
620
D617
C600 0.01
C613
0.01
C617
0.01 TP50
D600
TP49
4.7
R606
D614
C610
0.01
6.2K
C608
100u10
+
R633
FAN+B
MUTE
P-C
R663
Q615
TP33
+B
2.2K
10K
TP38
TP41
47K
2.2
Q258
36K
2W
R278
10K
R665
2W
R258
0.1
2W
Q220
Q616
TP37
TP42
R662
R660
Q256
1
R664
2.2
4
2W
R248
0.1
TP28
R282
TP34
R243
0.1
3.6K
B14.4V
+B
TP27
R246
0.1
470
470
R272
R262
5.1K
R232
R230
5.1K
C222
1000P
C220
1000P
R238
47K
Q222
3.6K
Q14
TP39
R666
2.2
Q611
R667
47
R276
R250
R621
2.2
Q613
Q612
R668
47
R274
100P
Q218
47
R11
Q610
R620 47K
Q226
LATCH
R634
2.2K
R630
47K
TP40
C606
100u10
+
R629
10K
R617
12K
D255
Q252
20K
C1
10u
D10
R619 Q609
R635
10K
C607
0.01
C609
0.01
+B
4
Q614
TP44
D613
-47.3V
C232
R2
R622
10.0V
Q225
Q254
C1
1000
FAN+B
Q229
4
TP88
1
R631
12K
Q255
R236
1/2W
1
Q257
R202
10
Q8
SW14.1V
43K
2.2
2.2
R235
2200P
R30
10
C18
R155
0.1
R257
0.1
TP25
R277
R279
100P
Q6
Q11
TP63
B
2W
2W
3.6K
C231
Q4
Q10
2W
R245
0.1
R247
0.1
470
R249
C10
3900u16
+
C11
3900u16
+
Q12
TP26
470
R271
5.1K
5.1K
Q217
R261
R229
R231
C221 C219
1000P 1000P
3.6K
Q227
Q223
R237
TP70
B14.4V
2.2
TP64
10K
C14
Q9
1K
R23
330K
C13
10u50
Q13
R19
Q7
8.2K
Q5
TP73
DC/DC
R632
12K
2.2
-2.1V
TP83
R34
0.01
TH601
4.7K
R17
D616
TRANS
D612
R648
R53
3.9K
C24
10u50
+
R650
100K
200
4.3K
R21
R656
R696
6 2.8V
TP80
D610
R624
5 1.7V
IC6
(2/2)
2.7K
R649
TP55
R652
4.3K
4.7K
220K
7
14.2V
5.0V
R651
TH605
2.8V
TP81
R653
4.3K
2
R643
TP54
Q3
1
B
47.3V
R275
C230
Q215
D205
IC11
(2/2)
R27
2W
Q251
100P
D206
5
TP57
Q15
4.3V
TH602
1.6V
-47.3V
R273
D203
R233
D204
R140
150K
C148
0.01
TP58
3
-15.0V
THERMAL
ATT
Q253
100
6
2.2
R52
2.2
ATT2=-1.5dB
R51
IC6 4
(1/2)
C57
10u50
+
C58
10u50
+
R7
10
C8
33K
1000P 1/2W
1/2W 1000P
C9
33K
R8
10
C7
3300u63
+
R6
1
8
100
10
POWER AMP
R234
TP
B.B 0+18d
D602 R604
R2
Q2
TP53
-13.6V
D6
+B
100P
TP76
7
C128 15P
L3
C233
6
TP
(2/2)
R138 62K
5
TP56
10K
R143
8
9
8
6
R618
4.3K
C614
R72
2.2
R647
220K
15.0V
-13.6V
FAN+B
Q216
C121
0.1
R141
10K
6
R137
430
5
10K
5
IC10
(2/2)
15V
R646 3K
R4
Q17
16K
R74
100
D4
C5
47u25
+
D3
C4
47u25
+
100
R5
R73
C3
47u25
+
C612
10u50
+
R638 22K
C6
3300u63
+
Q16
C2
47u25
+
R639
10K
R602
10K
R3
10
16K
R1
2.2
C615
10u50
+
R600 22K
ATT1=-1.5dB
D5
Q1
R71
+15V
15V
100
56K
15V
+-B=47.3V(BATT=14.4V)
52.6V(BATT=16V)
100
TP43
R145
3
+B
100
1
4 IC8
Rch : PHASE
INVERTER
15V
7
1
4
R135
430
5
4
2
3
7
(2/2)
+15V
3
6
7
8
9
10
1
2
3
C122
10u50
+
4 IC7
R130
8.2K
0.01
C120
8
2
C130
0.1
5
0.1
C611
10u50
+
R636 18K
9
8
C118
0.22
R136
TP31
C108
620
VR3 10K(A)
TP75
ISO-L
9.1K
3
47K
56K
C147
0.01
C116
10u50
+
HPF
TP35
R118 R132
HPF/OFF
/LPF
R134
4
R133
47K
R119
9.1K
6
3
47K
R115
7
R139
INPUT SENS.
VR1 50K(C)
7
5
R131 56K
5
100K
GND
C143 R163
10u50 47K
+
-15.0V
8
1
0.033
6
IC7
(1/2)
S6
C126
0.01
TP36
IC12
(1/2)
R161
IC12
(2/2)
2
R160
9.1K
0.01
47K
R158
7.5K
1
C146
0.01
R116
0.033
0.15
3
180K
C139
2
10K
C145
C119
10u50
+
1
3
4
9
5
8
4
2
7
C141
C137
0.15
C135
20K
R152
R162
7.5K
TP47
R156
R154 R157
TP30
15.0V
2
C117 TP32
0.22
C107
0.1
VR2 50K(C)
6
1
3
20K
R153
R117 8.2K
10K
15.0V
IC8
(1/2)
ISO-R
LPF
TP29
HPF 12dB/OCT,F=VR CONT (50-200Hz)
LPF 50-200Hz 24dB/OCT
C115
10u50
+
B
X09-8760-10 (2/3)
7
K
L
M
N
O
KAC-7204
+15V
1
-15V
IC10
(1/2)
TP67
6
C138
100P
2
R167 47K
R
1K
8
1
3
4 IC11
2.2K
+15V
R423
B
3
2
R144
B.B 0+18dB (VR) F=40Hz
EC
R148
2.2K
R146
10K
C136
4.7u50
+
2SA965-F
2SA992-A
2SC1845-A
2SC2235-F
L
C127
0.01
9
BASS
BOOST
R142
240
IC11
(2/2)
C129 0.01
C125 100P
7
5
1K
R150
47K
TP61
8
6
7
2
1
TP60
R422
1
4
VR4 10K(C)
5
150K
3
7
6
150K
2
8
R165 2.2K
4
5
0.1
2.2K
R149
240
0.1
IC10
(2/2)
3
R159
10K
C123
4.7u50
+
R151
(1/2)
2SA1576A
15V
3
IC1,2,6-8,10-12
: BA4560RF
IC5
: TL494IDR
14.2V
SW14.1V-1
: 2SC4883ANF
Q1
: 2SA1859ANF
Q2
Q3-8
: STP60NF06FP
: 2SC4097
Q9,12
: 2SA1577
Q10,11
: DTA114EUA
Q13,14
Q15,51,241,242,
281-284,602,605,606,
: 2SC4081
616,618
Q16,215,216 : 2SC1845-A(F,E)
Q17,201-204,217,218
: 2SA992-A(F,E)
Q50,603,614,615,
617,698
: 2SA1576A
Q205-208
: 2SC3478AA(L,K)
Q209,210
: 2SA1376AA(L,K)
: KTC3114-PH(A)
Q211,213
Q220,223,224,227
: 2SC4468NF
Q222,225,226,229
: 2SA1695NF
Q251,253,256,258
: 2SC2235-F
Q252,254,255,257
: 2SA965-F
Q604
: 2SB1241
Q609
: 2SD1863
Q610-613
: 2SC945AA(Q,P)
TP89
100K
D8
R25
6.8K
10K
C15
47u25
+
R26
5.0V
DC/DC CONTROL
IC5
150
1
4.5V
2
0V
3
0.1V
4
C17
5
1000P TP86
R24
6
20K
0V
7
C16
10u50
+
IN1FBACK
DTC
CT
RT
12V
0V
3.7V
GND
16
IN2+
2.8V
15
IN25.0V
14
REF
13
OUTCTRL
3.3V
12 14.2V
VCC
0V
11 14.2V
C2
10
E2
14.2V
C1
9
E1
D1,2
: 1N5406-TSC
D3,4
: UDZS16B
D5
: FCH10A20
D6
: FRH10A20
D7,50,152,203-206,251,
260,261,601-603,
605,610-613,615,616,
624,699
: 1SS133
D8,9
: 1SS355
D10,52,101,253,255
: LM1MA142WK-G
D102,254,295,296
: LM1MA142WA-G
D103,104
: UDZS6.8B
D600,617
: B30-1770-05
D604,614
: UDZS10B
D606
: UDZS15B
D607
: UDZS6.2B
D608
: UDZS13B
D609
: B30-1743-05
SW14.1V-1
TP90
1
R49
8
-1.0V
IN1+ -1.0V
TP91
R34
-2.1V
P83
B14.4V
1
L1
21uH
D1
W4
C1
10u25
W5
R616
TP48
3.9K
TP84
R29
10
1/2W
0.047
C20
1/2W
C19
0.047
R28
10
TP85
7
BATT 14.4V
6
GND
5
P-CON
4
LCH+
3
LCH-
2
RCH-
1
RCH+
DTA114EUA
5
CAUTION : For continued safety, replace safety critical components
only with manufacturer’s recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric
shock, leakage-current or resistance measurements shall be carried
out (exposed parts are acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
P1
SIGNAL LINE
GND LINE
B LINE
B LINE
KAC-7204
X09-8760-10 (3/3)
4
6
SP
OUT
P-CON
8
2SC4081
FUSE=40A
1
2
D607 D611
R614 6.8K
TP72
R613
1.5K
D604
Q606
C603
10u50
+
R615 3.9K
R612
3.6K
TP69
Q605
D606
10.1V
R611
3.6K
D605
R610
30K
Q604
1
D2
SW
14V
J3
TP74
L2
21uH
3
• DC voltages are as measured with a high impedance voltmeter.
Values may vary slightly due to variations between individual instruments or/and units.
7
KAC-7204
EXPLODED VIEW
A
B
Bx2
20
12
1
21
1
A
B
C
D
E
F
G
Y
Z
F2.6x13
M4x8
F3x10
F3x6
F3x8
F3x16
F3x10
M6 AU
M4 AU
:
:
:
:
:
:
:
:
:
6
N09-6365-05
N09-6726-05
N80-3010-43
N89-3006-43
N89-3008-48
N89-3016-48
N09-6447-05
N07-0003-08
N09-4214-08
6
714
5
8
F
719
D
9
10
2
Bundled to the
transistor.
E
E
Bundled to the
transistor.
Ax5
F
16
E
715
Ex2
(X09-876)
J2
723
Zx5
Gx2
Yx2
Ex2
Ax7
J3
E
J1
3
C
E
C
Ex2
719
E
F1
Ax8
F
VR1
VR2
VR3
VR4
C
C
F
718
E
16
E
715
702
3
Ex2
E
Ex4
E
E
E
E
Parts with the exploded numbers larger than 700 are not supplied.
9
KAC-7204
PARTS LIST
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
A N
DestiRef. No. d e
Parts No.
Description
nation
d w
KAC-7204
Ref. No.
A
d
d
N
e
w
Parts No.
Destination
Description
C113,114
C115,116
C117,118
C119
C120
CC73GCH1H150J
CD04BJ1H100M
CK73FB1H224K
CD04BJ1H100M
CK73GB1H103K
CHIP C
ELECTRO
CHIP C
ELECTRO
CHIP C
15PF
10UF
0.22UF
10UF
0.010UF
J
50WV
K
50WV
K
1
1
3
1B ✽ A21-6640-01
1B ✽ A21-6641-01
2B ✽ A64-4421-02
DRESSING PANEL
DRESSING PANEL
PANEL
5
6
8
9
10
2B
1A
2A
2A
2A
ESCUTCHEON
ESCUTCHEON
LIGHTING BOARD
LIGHTING BOARD
LIGHTING BOARD
C121
C122
C123
C124
C125
CK73GB1H104K
CD04BJ1H100M
CD04BJ1H4R7M
CK73GB1H103K
CC73GCH1H101J
CHIP C
ELECTRO
ELECTRO
CHIP C
CHIP C
0.10UF
10UF
4.7UF
0.010UF
100PF
K
50WV
50WV
K
J
INSTRUCTION MANUAL (ENG.FRE.SPA KE1
INSTRUCTION MANUAL (GE.DU.IT.PO E1
INSTRUCTION MANUAL (ENG.S-CHI) M1
C126,127
C128
C129
C130
C131-134
CK73GB1H103K
CC73GCH1H150J
CK73GB1H103K
CK73GB1H104K
CC73GCH1H101J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
15PF
0.010UF
0.10UF
100PF
K
J
K
K
J
C135
C136
C137
C138
C139
CK73FB1E154K
CD04BJ1H4R7M
CK73GB1H333K
CC73GCH1H101J
CK73FB1E154K
CHIP C
ELECTRO
CHIP C
CHIP C
CHIP C
0.15UF
4.7UF
0.033UF
100PF
0.15UF
K
50WV
K
J
K
-
B07-3231-03
B07-3232-02
B19-2324-03
B19-2468-03
B19-2502-03
✽ B64-3928-00
✽ B64-3929-00
✽ B64-3930-00
KE1
M1
12
1A
E30-6145-05
CONNECTING CORD ASSY
16
F1
3A
3B
F09-2974-05
F52-0016-05
FAN
FUSE (BLADE TYPE) 40A
-
✽ H54-4231-03
✽ H54-4233-03
ITEM CARTON CASE
ITEM CARTON CASE
KE1
M1
20
A
B
C
D
1A
2A
1B
3B
2A
N99-1820-05
N09-6365-05
N09-6726-05
N80-3010-43
N89-3006-43
SCREW & WRENCH KEY SET
SEMS (TAPTITE SCREW)(2.6X13)
DRESSED SCREW (M4X8)
PAN HEAD TAPTITE SCREW
BINDING HEAD TAPTITE SCREW
C140
C141
C143
C145-148
C149,150
CQ93FMG1H102J
CK73GB1H333K
CD04BJ1H100M
CK73GB1H103K
CK73GB1H472K
MYLAR
CHIP C
ELECTRO
CHIP C
CHIP C
1000PF
0.033UF
10UF
0.010UF
4700PF
J
K
50WV
K
K
E
F
Y
Z
3B
3A
2B
2B
N89-3008-48
N89-3016-48
N07-0003-08
N09-4214-08
BINDING HEAD TAPTITE SCREW
BINDING HEAD TAPTITE SCREW
TERMINAL SCREW (M6 AU)
TERMINAL SCREW (M4 AU)
21
1A
W01-1606-05
ACCESSORIES
C201,202
C203,204
C205,206
C207,208
C209,210
CD04BJ1H100M
CC45FCH1H221J
CK73GB1H472K
CD04BJ1E470M
CC45FCH1H100D
ELECTRO
CERAMIC
CHIP C
ELECTRO
CERAMIC
10UF
220PF
4700PF
47UF
10PF
50WV
J
K
25WV
D
C211,212
C213,214
C215,216
C217,218
C219-222
CC45FCH1H221J
CC45FCH1H220J
CD04BJ1H100M
CC45FCH1H220J
CK73GB1H102K
CERAMIC
CERAMIC
ELECTRO
CERAMIC
CHIP C
220PF
22PF
10UF
22PF
1000PF
J
J
50WV
J
K
C223
C225,226
C227,228
C230-233
C263,264
CD04BJ1J101M
CC45FSL1H471J
CC73GCH1H470J
CC73GCH1H101J
CC45FCH1H221J
ELECTRO
CERAMIC
CHIP C
CHIP C
CERAMIC
100UF
470PF
47PF
100PF
220PF
63WV
J
J
J
J
C600
C601
C602-605
C606
C607
CK73GB1H103K
CD04BJ1V330M
CD04BJ1H100M
CD04BJ1A101M
CK73GB1H103K
CHIP C
ELECTRO
ELECTRO
ELECTRO
CHIP C
0.010UF
33UF
10UF
100UF
0.010UF
K
35WV
50WV
10WV
K
C608
C609,610
C611,612
C613,614
C615
CD04BJ1A101M
CK73GB1H103K
CD04BJ1H100M
CK73GB1H103K
CD04BJ1H100M
ELECTRO
CHIP C
ELECTRO
CHIP C
ELECTRO
100UF
0.010UF
10UF
0.010UF
10UF
10WV
K
50WV
K
50WV
C616
C617
C620,621
C698
C699
CK73GB1H104K
CK73GB1H103K
CK73GB1H103K
CK73GB1H103K
CD04BJ1H010M
CHIP C
CHIP C
CHIP C
CHIP C
ELECTRO
0.10UF
0.010UF
0.010UF
0.010UF
1.0UF
K
K
K
K
50WV
AUDIO UNIT (X09-8760-10)
C1
C2-5
C6,7
C8,9
C10,11
C90-5557-05
CD04BJ1E470M
✽ C90-5546-05
C91-2293-05
CD04BC1C392M
ELECTRO
ELECTRO
ELECTRO
MPFC
ELECTRO
10UF
47UF
3300UF
1000PF
3900UF
25WV
25WV
63WV
200WV
16WV
C13
C14
C15
C16
C17
C90-5557-05
CK73GB1H104K
CD04BJ1E470M
CD04BJ1H100M
CQ93FMG1H102J
ELECTRO
CHIP C
ELECTRO
ELECTRO
MYLAR
10UF
0.10UF
47UF
10UF
1000PF
25WV
K
25WV
50WV
J
C18
C19,20
C24
C34
C36
CK45FB1H222K
CQ93FMG1H473J
CD04BJ1H100M
CK73GB1H103K
CK73GB1H103K
CERAMIC
MYLAR
ELECTRO
CHIP C
CHIP C
2200PF
0.047UF
10UF
0.010UF
0.010UF
K
J
50WV
K
K
C50,51
C52
C57,58
C101,102
C103,104
CD04BJ1H100M
CK73GB1H473K
CD04BJ1H100M
CK73GB1H102K
CD04BJ1H100M
ELECTRO
CHIP C
ELECTRO
CHIP C
ELECTRO
10UF
0.047UF
10UF
1000PF
10UF
50WV
K
50WV
K
50WV
C105,106
C107,108
C109-112
CC73GCH1H150J
CK73GB1H104K
CD04BJ1H100M
CHIP C
CHIP C
ELECTRO
15PF
0.10UF
10UF
J
K
50WV
E1 : KAC-7204 (Europe) K : KAC-7204 (North America)
M1 : KAC-7204 (Other Areas)
10
Indicates safety critical components.
KAC-7204
PARTS LIST
AUDIO UNIT (X09-8760-10)
Ref. No.
A
d
d
CN1,2
J1
J2
J3
R1,2
R3,4
R5,6
R7,8
R9,10
Parts No.
E41-1682-05
E63-0947-05
E58-1031-05
E70-0832-15
L1,2
L3
G
N
e
w
✽ L33-2444-05
L19-0771-05
2B
N09-6447-05
RK73EB2E100J
✽ RK73EB2E163J
RK73EB2E333J
RD14DB2H100J
RK73GB2A472J
Destination
Description
PIN ASSY
PIN JACK
RECTANGULAR RECEPTACLE
SCREW TERMINAL BOARD
CHOKE COIL 21UH
TRANSFORMER FOR CONVERTER
TAPTITE SCREW
CHIP R
CHIP R
CHIP R
SMALL-RD
CHIP R
10
16K
33K
10
4.7K
J
J
J
J
J
1/4W
1/4W
1/4W
1/2W
1/10W
R11-14
R15,16
R17
R18
R19
RK73GB2A470J
RK73GB2A152J
RK73GB2A333J
RK73GB2A822J
RK73GB2A103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47
1.5K
33K
8.2K
10K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R20
R21
R22
R23
R24
RK73GB2A334J
RK73GB2A103J
RK73GB2A104J
RK73GB2A103J
RK73GB2A203J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
330K
10K
100K
10K
20K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R25
R26
R27
R28-30
R34
RK73GB2A682J
RK73GB2A104J
RK73GB2A102J
RD14DB2H100J
RK73GB2A151J
CHIP R
CHIP R
CHIP R
SMALL-RD
CHIP R
6.8K
100K
1.0K
10
150
J
J
J
J
J
1/10W
1/10W
1/10W
1/2W
1/10W
R35
R49
R50
R51,52
R53
RK73GB2A103J
RK73GB2A1R0J
RK73EB2E222J
RK73GB2A2R2J
RK73GB2A102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
1.0
2.2K
2.2
1.0K
J
J
J
J
J
1/10W
1/10W
1/4W
1/10W
1/10W
R54-57
R58
R59
R60
R61
RK73GB2A470J
RK73GB2A103J
RK73GB2A104J
RK73GB2A103J
RK73GB2A472J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47
10K
100K
10K
4.7K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R62
R71,72
R73,74
R100
R101,102
RK73GB2A102J
RK73EB2E2R2J
RK73GB2A101J
RK73EB2E102J
RD14BB2C102J
CHIP R
CHIP R
CHIP R
CHIP R
RD
1.0K
2.2
100
1.0K
1.0K
J
J
J
J
J
1/10W
1/4W
1/10W
1/4W
1/6W
R103-106
R107,108
R109-112
R113,114
R115,116
RK73GB2A103J
RK73GB2A123J
✽ RN73GE1J103D
RK73GB2A472J
RK73GB2A473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
12K
10K
4.7K
47K
J
J
D
J
J
1/10W
1/10W
1/16W
1/10W
1/10W
R117
R118
R119
R120,121
R122
RK73GB2A822J
RK73GB2A563J
RK73GB2A912J
RK73EB2E222J
RK73EB2E104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
8.2K
56K
9.1K
2.2K
100K
J
J
J
J
J
1/10W
1/10W
1/10W
1/4W
1/4W
R123-126
✽ RN73GE1J103D
CHIP R
10K
D 1/16W
E1 : KAC-7204 (Europe) K : KAC-7204 (North America)
M1 : KAC-7204 (Other Areas)
Ref. No.
A
d
d
N
e
w
Parts No.
Destination
Description
R127-129
R130
R131
R132
R133,134
RK73EB2E104J
RK73GB2A822J
RK73GB2A563J
RK73GB2A912J
RK73GB2A473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
8.2K
56K
9.1K
47K
J
J
J
J
J
1/4W
1/10W
1/10W
1/10W
1/10W
R135
R136
R137
R138
R139
RK73GB2A431J
RK73GB2A103J
RK73GB2A431J
RK73GB2A623J
RK73GB2A621J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
430
10K
430
62K
620
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R140
R141
R142
R143
R144
RK73GB2A154J
RK73GB2A103J
RK73GB2A241J
RK73GB2A103J
RK73GB2A222J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
150K
10K
240
10K
2.2K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R145
R146
R147
R148
R149
RK73GB2A563J
RK73GB2A103J
RK73GB2A154J
RK73GB2A222J
RK73GB2A241J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
56K
10K
150K
2.2K
240
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R150
R151
R152,153
R154
R155
RK73GB2A473J
RK73GB2A222J
RK73GB2A203J
RK73GB2A103J
R92-0205-05
CHIP R
CHIP R
CHIP R
CHIP R
METAL-PLATE
47K
2.2K
20K
10K
0.1
J
J
J
J
K
1/10W
1/10W
1/10W
1/10W
2W
R156
R157
R158
R159
R160
RK73GB2A103J
RK73GB2A184J
RK73GB2A752J
RK73GB2A103J
RK73GB2A912J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
180K
7.5K
10K
9.1K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R161
R162
R163
R165
R167
RK73GB2A104J
RK73GB2A752J
RK73GB2A473J
RK73GB2A222J
RK73GB2A473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
7.5K
47K
2.2K
47K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R168-171
R201
R202
R203,204
R205-208
✽ RN73GE1J101D
RK73GB2A113J
RD14NB2E100J
RD14BB2C223J
RK73GB2A102J
MF R
CHIP R
RD
RD
CHIP R
100
11K
10
22K
1.0K
D
J
J
J
J
1/16W
1/10W
1/4W
1/6W
1/10W
R209,210
R211,212
R213,214
R215-218
R219-222
RK73GB2A101J
RD14BB2C102J
RD14BB2C223J
RK73GB2A151J
RD14BB2C622J
CHIP R
RD
RD
CHIP R
RD
100
1.0K
22K
150
6.2K
J
J
J
J
J
1/10W
1/6W
1/6W
1/10W
1/6W
R223,224
R225,226
R227,228
R229-232
R233-236
RK73GB2A101J
RK73GB2A132J
RK73GB2A223J
RK73GB2A512J
RD14NB2E101J
CHIP R
CHIP R
CHIP R
CHIP R
RD
100
1.3K
22K
5.1K
100
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/4W
R237,238
R239,240
R241,242
R243
R245-248
RK73GB2A362J
RK73GB2A472J
RK73GB2A103J
R92-0205-05
R92-0205-05
CHIP R
CHIP R
CHIP R
METAL-PLATE
METAL-PLATE
3.6K
4.7K
10K
0.1
0.1
J
J
J
K
K
1/10W
1/10W
1/10W
2W
2W
Indicates safety critical components.
11
KAC-7204
PARTS LIST
AUDIO UNIT (X09-8760-10)
Ref. No.
A
d
d
N
e
w
Parts No.
Destination
Description
Ref. No.
A
d
d
N
e
w
Parts No.
Destination
Description
R249,250
R251
R257,258
R260
R261,262
RK73GB2A362J
RK73GB2A330J
R92-0205-05
RK73GB2A330J
RD14NB2E471J
CHIP R
CHIP R
METAL-PLATE
CHIP R
RD
3.6K
33
0.1
33
470
J
J
K
J
J
1/10W
1/10W
2W
1/10W
1/4W
R649
R650
R651
R652,653
R656
RK73GB2A272J
RK73GB2A104J
RK73GB2A472J
RK73GB2A432J
RK73GB2A392J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
2.7K
100K
4.7K
4.3K
3.9K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R263,264
R265,266
R271,272
R273-279
R280
RK73GB2A152J
RK73GB2A103J
RD14NB2E471J
RD14NB2E2R2J
RK73GB2A113J
CHIP R
CHIP R
RD
RD
CHIP R
1.5K
10K
470
2.2
11K
J
J
J
J
J
1/10W
1/10W
1/4W
1/4W
1/10W
R658
R659
R660
R661
R662,663
RK73GB2A473J
RK73GB2A562J
RK73GB2A473J
RK73GB2A433J
RK73GB2A103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
5.6K
47K
43K
10K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R281
R282
R283
R285,286
R287
RK73GB2A243J
RD14NB2E2R2J
RK73GB2A303J
RK73GB2A103J
RK73GB2A243J
CHIP R
RD
CHIP R
CHIP R
CHIP R
24K
2.2
30K
10K
24K
J
J
J
J
J
1/10W
1/4W
1/10W
1/10W
1/10W
R664
R665,666
R667,668
R691
R692
RK73GB2A433J
RK73GB2A363J
RK73GB2A470J
RK73GB2A103J
RK73GB2A100J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
43K
36K
47
10K
10
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R289,290
R422,423
R600
R602
R603
RK73GB2A101J
RK73GB2A102J
RK73GB2A223J
RK73GB2A103J
RK73GB2A101J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100
1.0K
22K
10K
100
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
R693
R694
R695
R696
R699
RK73GB2A103J
RK73GB2A223J
RK73GB2A103J
RK73GB2A201J
RK73EB2E183J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
22K
10K
200
18K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/4W
R604
R605
R606
R607
R608
RK73GB2A103J
RK73GB2A333J
RK73GB2A103J
RK73GB2A472J
RK73EB2E183J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
33K
10K
4.7K
18K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/4W
R914
R915,916
VR1,2
VR3
VR4
RK73GB2A303J
RK73GB2A103J
R31-0255-05
R31-0253-05
R31-0254-05
CHIP R
30K
CHIP R
10K
VARIABLE RESISTOR
VARIABLE RESISTOR
VARIABLE RESISTOR
R609
R610
R611,612
R613
R614
RK73GB2A333J
RK73GB2A303J
RK73GB2A362J
RK73GB2A152J
RK73GB2A682J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
33K
30K
3.6K
1.5K
6.8K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
VR5 ,6
W200
W201
W202,203
W204-217
R32-0151-05
R92-2053-05
RK73GB2A000J
R92-2053-05
RK73GB2A000J
SEMI FIXED VARIABLE R 470
CHIP R
0 OHM J 1/8W
CHIP R
0.0
J 1/10W
CHIP R
0 OHM J 1/8W
CHIP R
0.0
J 1/10W
R615
R616
R617
R618
R619
RK73GB2A392J
RD14BB2C392J
RK73GB2A123J
RK73GB2A432J
RD14BB2C4R7J
CHIP R
RD
CHIP R
CHIP R
RD
3.9K
3.9K
12K
4.3K
4.7
J
J
J
J
J
1/10W
1/6W
1/10W
1/10W
1/6W
W218
W219
W220
W221
W223
R92-2053-05
RK73GB2A000J
R92-2053-05
RK73GB2A000J
RK73GB2A000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM
0.0
0 OHM
0.0
0.0
J
J
J
J
J
1/8W
1/10W
1/8W
1/10W
1/10W
R620,621
R622
R624
R625
R626
RK73GB2A473J
RD14BB2C222J
RK73GB2A432J
RK73EB2E621J
RK73GB2A681J
CHIP R
RD
CHIP R
CHIP R
CHIP R
47K
2.2K
4.3K
620
680
J
J
J
J
J
1/10W
1/6W
1/10W
1/4W
1/10W
W224
W225-231
W232,233
W234-237
W238
R92-2053-05
RK73GB2A000J
R92-2053-05
RK73GB2A000J
R92-2053-05
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM
0.0
0 OHM
0.0
0 OHM
J
J
J
J
J
1/8W
1/10W
1/8W
1/10W
1/8W
R627
R629
R630
R631,632
R633
RK73GB2A102J
RK73GB2A103J
RK73GB2A473J
RK73GB2A123J
RK73GB2A622J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
10K
47K
12K
6.2K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
W239-242
W243,244
W245
W246
W247-250
RK73GB2A000J
R92-2053-05
RK73GB2A000J
R92-2053-05
RK73GB2A000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0 OHM
0.0
0 OHM
0.0
J
J
J
J
J
1/10W
1/8W
1/10W
1/8W
1/10W
R634
R635
R636
R638
R639
RK73GB2A222J
RK73GB2A103J
RK73GB2A183J
RK73GB2A223J
RK73GB2A103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
2.2K
10K
18K
22K
10K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
W252
W253-257
W258
W259-263
W265-269
R92-2053-05
RK73GB2A000J
R92-2053-05
RK73GB2A000J
RK73GB2A000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM
0.0
0 OHM
0.0
0.0
J
J
J
J
J
1/8W
1/10W
1/8W
1/10W
1/10W
R640
R643
R646
R647
R648
RK73EB2E152J
RK73GB2A224J
RK73GB2A302J
RK73GB2A224J
RK73GB2A472J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.5K
220K
3.0K
220K
4.7K
J
J
J
J
J
1/4W
1/10W
1/10W
1/10W
1/10W
W270
W271-273
W274,275
W276-282
W283
R92-2053-05
RK73GB2A000J
R92-2053-05
RK73GB2A000J
R92-2053-05
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM
0.0
0 OHM
0.0
0 OHM
J
J
J
J
J
1/8W
1/10W
1/8W
1/10W
1/8W
E1 : KAC-7204 (Europe) K : KAC-7204 (North America)
M1 : KAC-7204 (Other Areas)
12
J 1/10W
J 1/10W
50K, C
10K, A
10K, C
Indicates safety critical components.
KAC-7204
PARTS LIST
AUDIO UNIT (X09-8760-10)
Ref. No.
A
d
d
N
e
w
Parts No.
Destination
Description
Ref. No.
A
d
d
N
e
w
Parts No.
Description
W284-288
W291-299
W300
W301-304
W305
RK73GB2A000J
RK73GB2A000J
R92-2053-05
RK73GB2A000J
R92-2053-05
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0.0
0 OHM
0.0
0 OHM
J
J
J
J
J
1/10W
1/10W
1/8W
1/10W
1/8W
Q3-8
Q9
Q10,11
Q12
Q13,14
STP60NF06FP
2SC4097
2SA1577
2SC4097
DTA114EUA
FET
TRANSISTOR
TRANSISTOR
TRANSISTOR
DIGITAL TRANSISTOR
W306-308
W309
W310-315
W317,318
W320,321
RK73GB2A000J
R92-2053-05
RK73GB2A000J
RK73GB2A000J
RK73GB2A000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0 OHM
0.0
0.0
0.0
J
J
J
J
J
1/10W
1/8W
1/10W
1/10W
1/10W
Q15
Q16
Q17
Q50
Q51
2SC4081
2SC1845-A (F,E)
2SA992-A (F,E)
2SA1576A
2SC4081
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
W322-325
W326-328
R92-2053-05
RK73GB2A000J
CHIP R
CHIP R
0 OHM J 1/8W
0.0
J 1/10W
S6
S31-2630-05
SLIDE SWITCH
D1,2
D3,4
D5
D6
D7
1N5406-TSC
UDZS16B
FCH10A20
FRH10A20
1SS133
DIODE
ZENER DIODE
DIODE
DIODE
DIODE
Q201-204
Q205-208
Q209,210
Q211
Q213
2SA992-A (F,E)
2SC3478AA (L,K)
2SA1376AA (L,K)
✽ KTC3114-PH (A)
✽ KTC3114-PH (A)
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
D8,9
D10
D50
D52
D101
1SS355
LM1MA142WK-G
1SS133
LM1MA142WK-G
LM1MA142WK-G
DIODE
DIODE
DIODE
DIODE
DIODE
Q215,216
Q217,218
Q220
Q222
Q223,224
2SC1845-A (F,E)
2SA992-A (F,E)
2SC4468NF
2SA1695NF
2SC4468NF
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
D102
D103,104
D152
D203-206
D251
LM1MA142WA-G
UDZS6.8B
1SS133
1SS133
1SS133
DIODE
ZENER DIODE
DIODE
DIODE
DIODE
Q225,226
Q227
Q229
Q241,242
Q251
2SA1695NF
2SC4468NF
2SA1695NF
2SC4081
2SC2235-F
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
D253
D254
D255
D260,261
D295,296
LM1MA142WK-G
LM1MA142WA-G
LM1MA142WK-G
1SS133
LM1MA142WA-G
DIODE
DIODE
DIODE
DIODE
DIODE
Q252
Q253
Q254,255
Q256
Q257
2SA965-F
2SC2235-F
2SA965-F
2SC2235-F
2SA965-F
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
D600
D601-603
D604
D605
D606
B30-1770-05
1SS133
UDZS10B
1SS133
UDZS15B
LED
DIODE
ZENER DIODE
DIODE
ZENER DIODE
Q258
Q281-284
Q602
Q603
Q604
2SC2235-F
2SC4081
2SC4081
2SA1576A
2SB1241
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
D607
D608
D609
D610-613
D614
UDZS6.2B
UDZS13B
B30-1743-05
1SS133
UDZS10B
ZENER DIODE
ZENER DIODE
LED (RED)
DIODE
ZENER DIODE
Q605,606
Q609
Q610-613
Q614,615
Q616
2SC4081
2SD1863
2SC945AA (Q,P)
2SA1576A
2SC4081
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
D615,616
D617
D624
D699
IC1,2
1SS133
B30-1770-05
1SS133
1SS133
BA4560RF
DIODE
LED (BLUE)
DIODE
DIODE
ANALOGUE IC
Q617
Q618
Q698
TH601,602
TH605
2SA1576A
2SC4081
2SA1576A
NCP18XH103J0S
NCP18XH103J0S
TRANSISTOR
TRANSISTOR
TRANSISTOR
THERMISTOR
THERMISTOR
IC5
IC6-8
IC10-12
Q1
Q2
TL494IDR
BA4560RF
BA4560RF
2SC4883ANF
2SA1859ANF
ANALOGUE IC
ANALOGUE IC
ANALOGUE IC
TRANSISTOR
TRANSISTOR
E1 : KAC-7204 (Europe) K : KAC-7204 (North America)
M1 : KAC-7204 (Other Areas)
Destination
Indicates safety critical components.
13
KAC-7204
SPECIFICATIONS
KAC-7204 (K, E type)
KAC-7204 (M type)
CEA-2006
Audio Section
Primary Power Output Ratings
(RMS Watts per channel @ 4 ohms, 1 % THD+N)
.......................................................................... 170 W × 2
Signal to Noise Ratio (Reference: 1Watt into 4 ohms)
...............................................................................83 dBA
Max Power Output .................................1000 W (500 W × 2)
Rated Power Output (+B = 14.4 V)
Normal (4 Ω) (20 Hz – 20 kHz, 0.08 % THD) ..... 170 W × 2
Normal (2 Ω) (1 kHz, 0.8 % THD) ...................... 250 W × 2
Bridged (4 Ω) (1 kHz, 0.8 % THD) ..................... 500 W × 1
Frequency Response (+0, –3 dB) .................... 5 Hz – 50 kHz
Sensitivity (rated output).................................... 0.2 V – 5.0 V
Input Impedance ..........................................................10 kΩ
Signal to Noise Ratio ..................................................100 dB
Low Pass Filter Frequency (-24 dB/oct.)
........................................................ 50 – 200 Hz (variable)
High Pass Filter Frequency (-12 dB/oct.)
........................................................ 50 – 200 Hz (variable)
Bass Boost Circuit (40 Hz) ....................0 – +18 dB (variable)
Max Power Output .................................1000 W (500 W × 2)
Rated Power Output (+B = 14.4 V)
Normal (4 Ω) (20 Hz – 20 kHz, 0.08 % THD) ..... 170 W × 2
Normal (4 Ω) (DIN : 45324 , +B = 14.4V) ........... 170 W × 2
Normal (2 Ω) (1 kHz, 0.8 % THD) ...................... 250 W × 2
Bridged (4 Ω) (1 kHz, 0.8 % THD) ..................... 500 W × 1
Frequency Response (+0, –3 dB) .................... 5 Hz – 50 kHz
Sensitivity (rated output).................................... 0.2 V – 5.0 V
Input Impedance ..........................................................10 kΩ
Signal to Noise Ratio ..................................................100 dB
Low Pass Filter Frequency (-24 dB/oct.)
........................................................ 50 – 200 Hz (variable)
High Pass Filter Frequency (-12 dB/oct.)
........................................................ 50 – 200 Hz (variable)
Bass Boost Circuit (40 Hz) ....................0 – +18 dB (variable)
General
General
Operating Voltage ...................... 14.4 V (11 – 16 V allowable)
Current Consumption ..................................................... 40 A
Installation Size (W × H × D) ................... 350 × 59 × 238 mm
Weight ..........................................................................3.2 kg
KENWOOD follows a policy of continuous advancements
in development. For this reason specifications may be
changed without notice.
Operating Voltage ...................... 14.4 V (11 – 16 V allowable)
Current Consumption ..................................................... 40 A
Installation Size (W × H × D)
............350 × 59 × 238 mm (13 3/4 × 2 5/16 × 9 3/8 inch)
Weight ............................................................ 3.2 kg (7.0 lbs)
KENWOOD follows a policy of continuous advancements
in development. For this reason specifications may be
changed without notice.
INSTALLATION
Ø4.6
350 mm
312 mm
212.5 mm
238 mm
Audio Section
325.5 mm
3
2
1
J3
5
BB-G
C125
4
1
IC10
8
5
IC11
8
W272 R146 C138
4
1
SENS.
W253
W252
H/OFF/L
LPF-F
VR2
W237
W282
R163
S6
C143
W235
W72
C146
5
C137 R156
4
1
8
C145
W228
R108
W227
R106
VR1
IC12
R104
C139 R158 R157
B
Q256
E
R262
R153
R
IN
W208
C233
R238
W196
R171 R111
C131
R125 C113
8
5
IC1
1
4
R107 C105
R105
R103
L
J1
W28
W205
W203
R
C101
L
R
L
W202
HPF-F
OUT
9
10
R121
J2
W322
1
2
C109
C204
C110
Q258
E
E
D204
R234
Q216
B
B
Q224
E
W24
R226
W200
D52
4
C34
C106 R114
C216
C220
W213
W214 R272
E
Q213
R240
R
R127
R228
MAX
B
C202
Q206
C111
E
Q202
D101
W218
W223
C150 R152 R110
W285 R112
C132 C114
Q220
W209
W21
W210
C218
R129 C112
IC2
W212
R230
C208
R243
C214
W23
C264
R206
R260
E W206
W207
W29
C212
R122
1
Q208
B
R219
D254
D260
W219
B
R216
R274
W31
W33
W35
W36
R236
D255
W216
R235
R217
B
E
R258
SP-R
+B
Q226
B
E
Q255
Q257
C221
W20
W22
E
B
C231
R231
R248
B
R276
W315
Q217 W215
D205
R279
B
E
R277
D609
C600
D4
TH601
D3
R3
R1
W275
Q222
R250
R128
R126 R170
8
5
R208
B
R227
W41
C103
R204
E
W201
W54
B
W32
W43
W34
C210
W25
C206 R210
B
E
C228
C226
R214
E
R246
C201
B
B
R169
C203
Q210
W30
R209
W44
C104
4
E
Q204
D261
R278
R203
Q201
R212
E
R123
R109
AGND
R282
W50
D206
C102
IC7
R263
W39
R264
C209
B
C133
C118
D152
W40
E
C149
B
W225
R224
Q252
B
D102
5
E
-B
C36
BE
W49
W38
Q284 Q282
W230
Q209
E
E
R261
R124
Q203
B
SP-R
R249
R102
W69
C263
+B
W204
1
W59
W325
W224
W236
R211
E
C227
R205
R242
Q205
C207
L-NF
B
D203
Q251
W51
R237
R232
C222
W266
W26
W246
W61
L-
W52
W47
R101
C119
C211
W221
-B
R113
W67
8
R213
W58
R221
W232
W68
W84
C134
R280
D251
W327
C122
R118
W197
Q207
R116
C108
W226
C116
+15V W63
W10 R201
W233
W240
E
W48
C230
D103
W66
C205
W239
R207
W328 R132
W199
D296
C223
R223
B
W83
W46
D104
W65
R241
Q281
Q253
W82
E
R229
C219
W37 PIN-G
IC8
R281
D253
R233
C215
W81
W211
4
R629
C225
R155
R273
W45
W42
R136
E
W53
R138
8
5
W244
C213
HPF
1
BE
C217
R168
R144
W243
R215
W56
C128
W71
W55
C611
BE
B
W324
BE
BE
B
C107
Q242
R668
R666
L+
W255 R251
C117
R636
BE
R115
R283
R130
R600
BE
Q283
BE
W242
C606
R119
R638
C615
W247
R117
R648
Q615 R617
W70
R271
R131
C612
E
D613
Q610
C608
R287 R202
R665
W248
Q616
W254 R630
R667 B
R4
R2
W80
R275
R247
R257
B
E
C232
B
Q218
Q215 W320
E
C4
W217
C124
R165
Q241
W76
W86
B
C135
W270
R150 R148
W13
W85
Q225
W245
R423
E Q613
W258
R239
E
R154
VR3
W73
W79 +B
W87
W234 LPF
R160
R162
C141
R161
W77
B
R634
R633
1
VR5
C126
W400
L
R286
R285
R651
B
C120
W130
W321
W241
R134
R133
IC6
E
CN1
W249
R914
B E Q617
R225
D295
5
R662
B
W267
R639
W256
R663
R632
MAX
W330
W97
1
4
R647 R618
R602 R649 R624
C614
R646
Q612
W92
W94
W96
C2
SP-L
W273
R266
R265
R915
R916
R643
B
C620
D624
D617
C613
R71
W323
R74
W112
W250
W268
Q611
R664
E
W265
R698
R628
C5
SP-R
D229
8
SENS
R52
D614
R635
C609
C610
Q614
C604
C618
W105
C3
W109
W257
R51
AMP-IN-L
W74
R652
W259
Q618
-15V W261
R696
R653
W78
W127
W262
C57
AMP-IN-R
W89
BE
Q229
W299
C698
C140
W283
C607
W263
W75
W431
R631
R151
R145
R143
R141
R139
W104
D615
C619
R135
W121
2
W88
R661
R660
R622
R656
W14
W314
W278 W277 W271
W95
BE
E
W60
W287
R625
R137
W281
R659
C605
W274
W91
W141 W286 W280
C58
D601
W198
W284 W279
R658
C616
W106
1
W99
FAN+B
W117
W115
R73
W64
VR4
D612
W107
LED+B
W114
W149
R422
W142
R619
W120
W148
W317
W143
W116
R72
W113
C147 C148
W136
R697
+15V
W93
W139
W269
W16
W101
W134
Q699
W122
-15V
SP-R
SP-L
+B
W111
W238
W161
W100
W133
E
Q609
W128
W137
W140
W144
W124
W135
W430
W150
W167
W170
W175
-B
W183
W184
W185
W186
W187
W188
W189
W110
W147
E
W90
R29
W132
C136
W160
B
E
W182
D610
W158
D608
SW14V
D616
4.5V
B
R640
C123
-15V
R626
W129
L3
W131
R55
W288
C11
R290
C617
D600
C6
W276
E B
C51
R289
Q7
W119
W146
W318
W292
W27
W156
R691
SP-R
W159
W145
W162
C52
R62
W151
W163
W429
TH-GND
C50
BE
Q51
R610
W178
D9
W302
W164
W190
CN2
W108
Q16
R142
C130
R140
W153
W152
R621
W291
Q50
W155
R620
R60
Q698
R5
D50
R61
W154
R58
W157 SP-L
R609
W180
W179
C15
W304
C14
R22
R34
W138
B
W229
R100
4
2
BB
R28
+B
E
W220
W300
R59
R605 B E
-B
Q17
R167
BE
SP-GND
BE
D603 R612
R607
W294 W293
E Q604
Q4
W118
E Q1 B
W231
5
R694
R245
B
R159
EB
B
R8
W303
W307
C17
C7
B
E Q2 B
W62
6
W169
E
W260
7
R19 R23
W305
R25
R26
C16
W191
W172
Q223
C129
C127
D611
R692
Q603
R627
P1
E
W123
W425
W168
W177
R699
Q602
W11
C121
R149
C1
W301
W165
W12
R147
W332
D8
Q13
R24
W194
W193
B
C20
W426
W171
W174
W4
W176
W173
B E W297
W166
R604
R695
C621
R606
R603
R693
W15
C9
D10
Q9
R9
R15
R13
W313
Q211
W125
W331
D7
C8
R27
R53
R17
R650
Q11 Q10
W427
W195
W402
R608
BATT
C699
W181
R611
R7
R6
C19
Q3
C602
R18
W295
Q6
W192
C24
Q14
R10
R16
R14
BE
16
W298
W296
C601
R30
9
1
W306
W406
G
BE
C13
R20
Q15
D
W405
W311
S
W404
R615
W409
W408
Q8
IC5
D606
G
W407
D
C10
TH605
S
Q12
8
D607
G
BE
C18
W412
W411
W410
D
W403
Q605
D604
W416
W415
W414
S
W401
D602
G
W413
D
BE
BE
B
D699
S
EB EB
R21
R35
D605
W418
W419
G
R57
W312 W310 R49
L1
L2
Q5
W428
D
W417
S
W309
W308
Q227
R613
W421
R11
W422
G
R54
E
R614
W5
D
R56
W424
S
R12
W420
D6
Q606
C603
D2
W423
D5
R616
D1
KAC-7204
PC BOARD (FOIL SIDE VIEW)
AUDIO UNIT X09-8760-10 (J76-0476-11)
Q254
R218
R222
R220
B
VR6
E
TH602
C115
R120
R50
W326
(X09-8760-10)
+15V
TP75
R159
10K
8
1
3
4 IC11
2.2K
(1/2)
15V
2.2
Q258
2
Q224
47.3V
R53
1K
10K
100K
D8
R25
6.8K
10K
C15
47u25
+
R26
150
R34
2
0V
3
0.1V
4
0.1
C17
5
1000P TP86
R24
6
20K
0V
7
C16
10u50
+
IN1FBACK
DTC
CT
RT
12V
0V
3.7V
GND
16
IN2+
2.8V
15
IN25.0V
14
REF
13
OUTCTRL
3.3V
12 14.2V
VCC
0V
11 14.2V
C2
10
E2
14.2V
C1
9
E1
D1,2
: 1N5406-TSC
D3,4
: UDZS16B
D5
: FCH10A20
D6
: FRH10A20
D7,50,152,203-206,251,
260,261,601-603,
605,610-613,615,616,
624,699
: 1SS133
D8,9
: 1SS355
D10,52,101,253,255
: LM1MA142WK-G
D102,254,295,296
: LM1MA142WA-G
D103,104
: UDZS6.8B
D600,617
: B30-1770-05
D604,614
: UDZS10B
D606
: UDZS15B
D607
: UDZS6.2B
D608
: UDZS13B
D609
: B30-1743-05
SW14.1V-1
TP90
1
R49
8
-1.0V
IN1+ -1.0V
TP91
R35
TP82
TP87
33K
R17
R20
330K
4.5V
TP88
R22 100K
1
10K
D9
R18
1.5K
IC5
1K
R23
D7
R16
DC/DC CONTROL
-2.1V
TP66
47
R14
1.5K
TP71
R15
4.7K
4.7K
47
R9
R10
R57
SW14.1V
TP68
47
R13
47
R56
R54
47
47
R55
47
: 2SC4883ANF
Q1
: 2SA1859ANF
Q2
Q3-8
: STP60NF06FP
Q9,12
: 2SC4097
Q10,11
: 2SA1577
Q13,14
: DTA114EUA
Q15,51,241,242,
281-284,602,605,606,
616,618
: 2SC4081
Q16,215,216 : 2SC1845-A(F,E)
Q17,201-204,217,218
: 2SA992-A(F,E)
Q50,603,614,615,
617,698
: 2SA1576A
Q205-208
: 2SC3478AA(L,K)
Q209,210
: 2SA1376AA(L,K)
Q211,213
: KTC3114-PH(A)
Q220,223,224,227
: 2SC4468NF
Q222,225,226,229
: 2SA1695NF
Q251,253,256,258
: 2SC2235-F
Q252,254,255,257
: 2SA965-F
Q604
: 2SB1241
Q609
: 2SD1863
Q610-613
: 2SC945AA(Q,P)
Q14
B14.4V
1
B14.4V
FAN+B
MUTE
D1
D2
FUSE=40A
W4
C1
10u25
W5
1
R616
TP48
3.9K
TP84
1/2W
R29
10
1/2W
C19
0.047
C20
0.047
TP85
R28
10
2
D607 D611
R614 6.8K
R613
1.5K
D604
10K C602
10u50
+
Q606
TP72
Q605
C603
10u50
+
TP69
D606
R615 3.9K
R612
3.6K
R610
30K
D605
4.7K
10.1V
1
R611
3.6K
10K
R695
R605
10K
Q602
C621
0.01
47K
R607
R603
33K
18K
R608 R609
R699
18K
R693
10K
D699
33K
D601
1K
J3
TP74
L2
21uH
SW
14V
Q604
Q603
R627
D603
D608
C604
10u50
+
R640
1.5K
C605
10u50
+
R694
22K
C601
33u35
+
0.1
C616
5.6K
R659
R692
C699
1u50
+
43K
Q617
Q698
13.4V
R658
Q618
L1
21uH
TP62
10
TP46
TP45
SW14.1V
R626
680
D609
D617
C600 0.01
D600
TP49
R625
620
C613
0.01
C617
0.01 TP50
6.2K
4.7
R606
D614
C610
0.01
R635
10K
R634
2.2K
C608
100u10
+
R633
2.2K
TP59
POP
NOISE MUTE
D615
R665
10K
R661
TP37
TP42
R662
7
BATT 14.4V
6
GND
5
P-CON
4
LCH+
3
LCH-
2
RCH-
1
RCH+
SP
OUT
P1
P-CON
R663
Q615
TP33
+B
47
R11
R278
Q616
R666
1
R667
47
4
R668
47
R258
0.1
Q220
Q11
SW14.1V-1
10K
TP38
TP41
SIGNAL LINE
GND LINE
B LINE
B LINE
47K
2.2
R167 47K
C129 0.01
C127
0.01
R150
47K
9
R146
10K
R140
150K
8
7
6
5
4
1
2
3
C121
0.1
R149
240
R142
240
3
2
R144
IC1,2,6-8,10-12
: BA4560RF
IC5
: TL494IDR
D10
+B
TP34
R243
0.1
TP28
Q256
Q8
Q10
TP39
36K
Q222
Q613
C609
0.01
R632
12K
Q611
TP27
R282
TP64
R21
3.9K
C24
10u50
+
R650
100K
200
Q13
R619 Q609
Q612
36K
47K
2W
470
R272
R262
5.1K
R232
R230
5.1K
3.6K
R621
2.2
3.6K
R238
1/2W
B14.4V
R630
47K
TP40
Q610
C606
100u10
+
R629
10K
R617
12K
L
R
1K
R622
LATCH
R660
100
2.2
R250
R12
C18
C607
0.01
R620 47K
Q226
R274
Q614
TP44
D613
R276
Q6
10.0V
Q225
Q254
R423
R148
2.2K
TP89
TP83
C14
Q7
TP63
B
Q229
-47.3V
C232
Q4
43K
33
C138
100P
FAN+B
R631
12K
Q255
Q252
C10
3900u16
+
C11
3900u16
+
R664
R234
C136
4.7u50
+
14.2V
R27
TP73
2W
R155
0.1
R257
0.1
2.2
2.2
R202
10
C222
1000P
D204
R260
BASS
BOOST
1
Q257
100P
VR4 10K(C)
5.0V
10K
TH601
4.7K
∗TRANS
D612
D616
R19
Q5
R656
4.3K
R648
C614
TP80
R696
6 2.8V
TH605
R624
5 1.7V
IC6
(2/2)
D610
0.01
220K
7
2.7K
R649
TP55
R643
TP54
R652
4.3K
4.7K
TP81
-15.0V
1
+B
100P
C233
1K
C125 100P
7
IC11
(2/2)
R422
1
4
5.0V
R651
R653
4.3K
2.8V
TH602
2
TP70
2200P
R30
10
1
2W
D206
Q216
C130
0.1
10K
R136
C147
0.01
1.6V
Q9
2W
2W
TP25
R277
R279
Q218
Q210
+B
2W
3.6K
C220
1000P
Q213
10P
R245
0.1
D203
D205
C216
10u50
+
1.3K
R226
VR6
470
100
10K
R143
C148
0.01
9
8
7
4
R137
430
5
1
R135
430
5
R141
10K
6
2
3
R134
C126
0.01
47K
3
Q15
4.3V
SW14.1V
4
22P
22P
R290
22K
C210
R247
0.1
R249
100P
R214
6
8
2.2
R52
R51
ATT2=-1.5dB
8
IC6 4
(1/2)
Q3
D255
100
2
B.B 0+18dB (VR) F=40Hz
R618
4.3K
Q12
TP26
470
R271
5.1K
5.1K
R261
R229
R231
VR5
470
C221 C219
1000P 1000P
C215
10u50
+
1.3K
R225
22P
22P
C217
C213
C214
C218
6.2K
6.2K
3.6K
R236
2
2.2K
+15V
TP58
DC/DC
Q227
4
D254
TP60
5
C128 15P
-47.3V
Q223
R237
Q217
1
470P
100
R224
470P
C226
Q208
220P
R222
1.5K 220P
C212
4.7K
R239
150
100
R223
1K
R212 C208
1K 47u25
+
R264 C264
D253
2.2
2.2
Q215
R289
R147
150K
6
7
8
4
1
2
3
9
8
5
7
9
10
R133
47K
R119
9.1K
6
3
1
2
R115
47K
47K
ATT1=-1.5dB
1
C57
10u50
+
C58
10u50
+
C8
1000P 1/2W
1/2W 1000P
C9
33K
33K
R7
10
16K
D6
B
47.3V
R275
C230
100P
100
R240
47P
10K
D295
R242
-13.9V
1K
R208
1K
C206
4700P
100
22K
C228
1
2
3
R217
6.2K
6.2K
R221
220P
1.5K
220P
C211
C207 R211
47u25 1K
+
C263 R263
100
C205 R209
1K
R207
R205
R206
220P
R204
10K
30K
R210
Q204
Q202
150
TP3
2
R220
11K
Q251
R235
C223
100u63
+
C202
10u50
+
R216 D261
R280
R266
R265
10K
10K
R915
Q206
TP10
TP5
R914
TP2
24K
R287
10K
R916
10K
R286
R285
10K
R
D296
Q242
Q284
100
7
6
TP57
(2/2)
R138 62K
C13
10u50
Q2
C231
C225
D152
Q282
6
8.2K
10
TP53
THERMAL
ATT
R273
100
150
Q241
D251
33
Q207
R218
Q283
R213
Q205
220P
C203
TP9
4700P
22K
R203
Q281
30K
R283
TP4
Q203
R233
Q211
C209
10P
22K
MUTE
24K
R281
TP1
R219
Q201
C201
10u50
+
R251
TP76
3
R165 2.2K
TP61
7
100
R2
R647
220K
15.0V
-13.6V
Q253
Q209
47P
ATT
8
5
15V
R646 3K
R72
2.2
+B
4.7K
10K
R241
150
D260 R215
2
C227
11K
5
IC10
(2/2)
TP56
4 IC8
Rch : PHASE
INVERTER
-13.6V
FAN+B
2
56K
C123
4.7u50
+
R151
3
1
3
L
C122
10u50
+
7
4 IC7
(2/2)
TP43
R145
VR3 10K(A)
L3
2
R201
2
D602 R604
15V
Q17
R8
10
D3
C5
47u25
+
-15.0V
R74
100
C6
3300u63
+
R5
100
C7
3300u63
+
R6
R73
C4
47u25
+
R639
10K
Q16
POWER AMP
3
R116
0.15
C139
R3
10
C612
10u50
+
R638 22K
2
0.047
C52
R58
10K
1K
R602
10K
Q51
R62
C615
10u50
+
R600 22K
1
TP78
8
620
IC10
(1/2)
TP67
1
15V
R1
2.2
1
2
3
C611
10u50
+
R636 18K
C51
10u50
+
C50
10u50
+
R691
10K
R60
TP79
Q50
3
FAN
4
9
8
Q1
R71
2
10K
D50
22K
1
1
R61
4.7K
5
6
D5
FAN+B
R227
GND
C108
C118
0.22
3
3
+15V
+B
R59 100K
15V
22K
C204
2
TP31
15V
16K
15.0V
+15V
R228
+B
9.1K
+-B=47.3V(BATT=14.4V)
52.6V(BATT=16V)
2
C620
0.01
CN2
56K
HPF/OFF
/LPF
HPF
TP35
R118 R132
R139
INPUT SENS.
VR1 50K(C)
3
FAN+B
D624
1
GND
C143 R163
10u50 47K
7
+
4 -15.0V
S6
+15V
+B
12.5V
GND
7
5
4
2
3
0.15
15V
TP51
2
100K
5
IC12
(2/2)
8
IC7
(1/2)
R131 56K
R130
8.2K
+15V
AUTO P CON
+B
0.033
6
C119
10u50
+
1
0.1
3
4
R161
ISO-L
3
R50
2.2K
CN1
TP36
IC12
(1/2)
D52
FAN
R160
9.1K
0.01
2
3
2.2
10
8
4
2
+15V
3
180K
R158
7.5K
1
C146
0.01
0.01
IC2
(2/2)
4
C135
R152
7
5
10K
0.033
C145
C116
10u50
+
C120
15P
10K
C114
R110
100
R124 10K
C134 100P
R168
8
20K
C140
1000P
C150
IC2
(1/2)
6
6
20K
R153
1
C113
15P
R123 10K
C149
10K
R105
R106
10K
3
2
D4
FR+
1
R154 R157
C141
R248
0.1
1 2
R126 10K
C137
R246
0.1
RR+
R129
100K
10K
R162
7.5K
TP47
10K
TP30
15.0V
R156
C36
0.01
C132 100P
VR2 50K(C)
R4
TP12
2
R112
100
TP29
C34
0.01
R100
1K
C117 TP32
0.22
C107
0.1
2W
FR-
C111
10u50
+
C112
10u50
+
LPF
2W
R128
100K
R117 8.2K
C2
47u25
+
RR- 3 4
TP14
C131
IC8
(1/2)
ISO-R
C3
47u25
+
5 6
4
R125 10K
TP22
-15V
HPF 12dB/OCT,F=VR CONT (50-200Hz)
LPF 50-200Hz 24dB/OCT
C115
10u50
+
7
470
SP
INPUT
FL-
R111
10K
8
470
RL- 7 8
R120
2.2K
TP11
TP20
R108
12K
TP18
R122 C109
100K 10u50
10
+
R127 C110
100K 10u50
8
+
FL+
R171
100
R170
4.7K
D102
R121
2.2K
J2
RL+ 9 10
6
+15V
-15V
-15.0V
100P
15P
R114
TP13
12K
10K
TP8
D103 D104
5
10K
R107
TP17
C106
TP6
C104
10u50
+
R109
100
ISO
10K
C124
0.01
R102
1K
R104
C101
TP7
L
LINE
IN
AR AL
C102
R
1000P
LINE
OUT
C103
10u50
+
1000P
R101
1K
R103
C698
0.01
R169
C133 100P
1
2
+15V
-15V
15.0V
IC1
(2/2)
TP21
4700P
3
TP16
J1
+15V
IC1
(1/2) TP19
15P
C105
R113 TP15
4.7K
4700P
D101
B
KAC-7204