Power Amp - Kenwood KVT-727DVD Service Manual

BX
4V
4V
8V
IC200
1 AOUT
0V AIN-
2
0V 3 AIN+
4
V-
-9.2V
5V
5V
5V
10
25

POWER AMP

IC100
13.8V
+9V
0V
-9V
D101 D100
1
2
3
SURGE
PROTECT
Q152
R171
4.7
R159
390
1
2
3
4
5
503
BY
FRONT
L
PRE OUT
R
+9V
5V AMP
IC201
0V 9.4V 0V
8
V+ 1 AOUT
BOUT 7 0V
0V AIN-
2
0V 3 AIN+
BIN- 6 0V
4
0V 0V
V-
BIN+
5
-9.2V
-9V
R205 R209 R217
22K 22K 22K
Q200 Q201 Q202
D212 D213
Q203
MUTE
R219
47K
BU5V
6.6V 6.6V
6.6V
4.0V
R110 10K
R105 10K
SVR+B
PWR-IC SVR EXTERNAL
REGULATE CIRCUIT
AUDIO REF. 4V
R160 R168
2.4K 1K
R166
100 IC150
D151
Q151
C175
1000P
R173
100
3.1V
R162 R167
5.1K 1K
C177
100u16
BZ
REAR
L CENTER
R SW
J200
5V AMP 5V AMP
IC202
9.4V 0V
8
V+ 1 AOUT
BOUT 7 0V
0V AIN-
2
0V 3 AIN+
BIN- 6 0V
4
0V
V- V-
BIN+
5
-9.2V
R220 R231 R232
22K 22K
Q204 Q205
D214
MUTE
R218 MUTE
47K
D200
10
R118
W100 1K
R104
10K
R113
R102
100K
10K
C101
1
C172
1000P
6.6V
A3.3V
R176
10
+
CA
KVT-727DVD/727DVDY
AV OUT
J202
C235 C236
1000P 1000P
C234 C237
2200P 2200P
R241 R242
22K 22K
9.4V
8
V+
BOUT 7 0V
Q207
BIN- 6 0V
D216
BIN+
5
47K
47K
D203
Q208
22K
8
Q206
27
26
C150
47u16 C152
+
1500P
R151
R
C151
1500P
R152
L
C199
1500P
R153
35
100
C198
1500P
R154
36
100
C197
1500P
R155
37
100
C196
1500P
R156
38
100
C195
1500P
R157
39
C164
100
0.01 C194
1500P
R158
40
100
8
1
2
3
4
5
X34-3552-71 (2/6)
CB
L CAMERA IN
R VIDEO
CN150
1
R267
75
D201
D218
Q209
8
10
C154 33
ACIN3R
1K 1
C155
34
ACIN3L
1K 1
C156
3.3u25
35
ACIN2R
C157
3.3u25
36
ACIN2L
3.0V
C158
3.3u25
37
ACIN1R
C159
3.3u25
38
ACIN1L
C160
3.3u25
39
ACIN0R
C161
3.3u25
40
ACIN0L
41
VCC 7.8V
0V 42
GND
43
SW LDOUT2R
44
3.8V
C LDOUT2L
45
RR LDOUT1R
3.8V
46
RL LDOUT1L
0V 47
PGND
C165
10u35
48
PREF
+
3.8V
73