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Kenwood Manuals
Amplifier
KAC-PS4D/X4R
Service manual
Kenwood KAC-PS4D/X4R Service Manual page 19
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Z
PWM DRIVER
4
IC101
1
R129
NC1
0
2
INA
3
GND
R130
4
INB
0
00
.1
4
D111
14
VCC
13
12
11
PWM DRIVER
10
IC102
9
1
R132
NC1
0
8
2
INA
3
GND
R131
4
INB
0
200
0.1
D211
14
VCC
13
12
4
11
10
PWM DRIVER
9
IC201
8
1
R229
NC1
0
2
INA
3
GND
R230
4
INB
0
PWM DRIVER
IC202
1
R231
NC1
0
2
INA
3
GND
R232
4
INB
0
5
4
5
5
1
AA
SW TR for
SP OUTPUT
+HV
TP184
8
D105
NC8
C101
7
OUTA
R105 4.7
0.1
6
VCC
D107
C103
5
OUTB
R107
0.1
33
TP185
HV
SW TR for
SP OUTPUT
+HV
TP186
8
D106
NC8
C102
7
OUTA
R106 4.7
0.1
6
VCC
D108
C104
5
OUTB
R108
0.1
33
TP187
HV
SW TR for
SP OUTPUT
+HV
TP188
8
D205
NC8
C201
7
OUTA
R205 4.7
0.1
6
VCC
D207
C203
5
OUTB
R207
0.1
33
TP189
HV
SW TR for
SP OUTPUT
+HV
TP190
8
D206
NC8
C202
7
OUTA
R206 4.7
0.1
6
VCC
D208
C204
5
OUTB
R208
0.1
33
TP191
HV
+15V-1
R371
C366
680
10u16
L
+
R372
10K
C363
0.1
Q301
IC309
D308
Q302
LPF
D309
R320
R471
C466
Q303
10K
680
10u16
R
+
R472
10K
Q401
15V-1
12
AB
39.7V
+HV
+3.3V
HV
-39.7V
C107
220u50
+
L103
R127
120nH
82
C109
1/2W
R147 39
0.47
Q101
1/2W
R145 39
TP180
1/2W
Q103
R128
82
1/2W
L104
R227
120nH
82
1/2W
R148 39
Q102
1/2W
R146 39
C108
TP181
220u50
1/2W
+
Q104
C110
R228
82
0.47
1/2W
-39.7V
39.7V
C207
220u50
+
L203
R135
120nH
82
C209
1/2W
R247 39
0.47
Q201
1/2W
R245 39
TP182
1/2W
Q203
R136
82
1/2W
L204
R235
120nH
82
1/2W
R248 39
Q202
1/2W
R246 39
C208
TP183
220u50
1/2W
+
Q204
C210
R236
82
0.47
1/2W
5
4
R366 6.8K
R364
C360
C362
R365
6.8K
22u6.3
+
470P
3.9K
C364
0.1
R386
C352
0
10u16
+
C460
22u6.3
C462
R465
+
470P
3.9K
R464
R466 6.8K
6.8K
+5VA
12
AC
KAC-PS4D/X4R
+HV
+3.3V
TP172
L101
TP171
15uH
R109
R149
0.022
0.027
1W
1W
R111
C117
Q105
390
4700P
R151
TH103
22K
TH101
R117
390
Q107
R119 4.7K
CURRENT PROTECTION
Q109
HV
+HV
+3.3V
TP174
L102
TP173
15uH
R110
R150
0.022
0.027
1W
1W
R112
C118
390
4700P
Q106
R152
TH104
22K
TH102
R118
390
Q108
R120 4.7K
CURRENT PROTECTION
Q110
HV
+HV
+3.3V
TP176
L201
TP175
15uH
R209
R249
0.022
0.027
1W
1W
R211
C217
Q205
390
4700P
R251
TH203
22K
TH201
R217
390
Q207
R219 4.7K
CURRENT PROTECTION
Q209
HV
+HV
+3.3V
TP178
L202
TP177
15uH
R210
R250
0.022
0.027
1W
1W
R212 C218
390 4700P
Q206
R252
TH204
22K
TH202
R218
390
Q208
R220 4.7K
CURRENT PROTECTION
Q210
HV
IC310
D/A CONVERTER
28
R358 120
1
ML
117
LRCIN
27
R356 120
2
MC
120
DIN
26
R357 120
3
MD
121
BCKIN
25
4
MUTEB
CLKO
R359 120
5
24
11
XTI
MODE
6
23
XTO
CSBIWO
7
DGND
22
8
RSTB
DVDD
21
9
ZERO
AVDDR
20
10
C369
AVDDL
AGNDR
0.1
19
C353
AGNDL
10u16
11
VMIDR
+
18
C367
VMIDL
10u16
C350
+
0.1
R368
12
17
MODE8X
DIFFHW
10K
13
16
VOUTR
VOUTL
14
15
AGND
AVDD
X09-8620-10 (6/7)
AD
Q111,112
SPEAKE
Q
MUTE
R137
DRIVER
47K
Q113
Q
R139
10K
Q114,115
SPEAKE
Q
MUTE
R141
DRIVER
47K
Q116
Q
R143
10K
Q211,212
SPEAKE
Q
MUTE
R237
DRIVER
47K
Q213
Q
R239
10K
Q214,215
SPEAKE
Q
MUTE
R241
DRIVER
47K
Q216
Q
R243
10K
R369 10K
R370 10K
R380 10K
R381 10K
R382 10K
R383 10K
R391 100
R384 10K
C368
10u16
C354
+
0.1
C334
R385
10K
0.1
19
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