Kenwood CT--401 Service Manual page 7

K L
MAIN PCB
19.4V
R167
+12V
IC103
9.6V
(1/2)
R145 C147 9.7V
C153 R159
10K 2.2u50 5 8
7 1u50 1K
+
6
+
9.7V
R217
5.6K
Q115 Q117
C149 R155 43K
R161
220P
C195 100P
5.6K
LINE
C151
LINE
MUTING 100u16
MUTING
+
PRE AMP
Q118
C196 100P
R162
R218 C150 R156 43K
5.6K
5.6K
Q116 220P
C154 R160
9.7V 2
R146 C148
1 1u50 1K
10K 2.2u50 3
+
+ 9.7V
4
9.6V
REC/PLAY : 0V
IC103
STOP :3.7V
(2/2)
2 1
21.6V
+21.6V
+12V
+5V
5.1V
R347
22K
J003
CF301
6.0MHz
R342
10K
R341 1
AC-CHK
10K
2
VSS
3
VSS
4
SYS-DATA
5
5 SYS-BUSY
6
6 DOLBY-NR-OUT
IC302
7
METER-GAIN
8
u-COM
8 REC/PB
9
B-REC-REV-SW
9 PB-EQ/NORMAL
10
B-REC-FWD-SW
10 REC-EQ-TAPE1
11
11 REC-EQ-TAPE2
12
12 SYS-DO
13
13 LED-A-FWD
14
14 LED-A-REV
15
15 LED-B-REV
16
0
R393
47K
M N
JK101
R165
100
L
PLAY
R
R179
Q111
33K
L
REC
R180
Q112
33K
R
VR101
50K(A) L-REC
LEVEL
INPUT CN108 CN108
R166
L IN
100 MUTING
VR101
5 5
R IN 50K(A) R-REC
4 4
LEVEL
GND
3 3
L-REC-LEVEL
2 2
R-REC-LEVEL
1 1
+21.6V
+12V
+5V
+5V
RESET
5.1V
5.1V
5.1V
IC303
R349 C310
D315 D318
1K 1u50
OUT IN
+
12.1V
GND
Q302
RESET
IC
C312 0.022
+5V
IC304
1 8
2 7
R354
3 6
4 5 22K
E2 PROM
5.1V
48
EE-PROM-SCL
47
EE-PROM-SDA
46
0
45
2099-DE 45
44
2099-LCK 44
43
2099-CLK 43
42
SI
41
2099-DO 41
40
40
39
39 5.1V
38
B-MODE-SW 38
37
B-HALF-SW 37
36
B-RELL 36
35
A-MODE SW 35
34
HALF-SW 34
33
A-REEL 33
CN603 1 2
1 2 3 4 5
CN602
O P
Q306
12.0V
12.1V
11.3V
0V R362
2.2K
+B CONT.
25
(MECHA)
Q307
Q308
SOL.B
R364
CONT.
2.2K
12.1V
22
Q309
40
R371 4.7K
1
39
R366 4.7K
63
R367 4.7K
3
+12V
36
R368 22K
5
38
R389 4.7K
7
R379 4.3K
37
R365 4.7K SFR301 2K
9
62
R370 4.7K TAPE SPEED
+12V 10
33
11
R369 22K
Q310
12
+12V 13
R373
14
2.2K
Q311 15
16
21 SOL.A
12.0V
CONT.
35
34
+21.6V
+12.0V
IC305
12.1V 21.6V
AVR
1 3
+21.6V
2
+12.0V
IC306
AVR
1 3
CN606
3 3
2
2 2
1 1
+21.6V
+12V
4.5V
+12V
D321 D322
+5.0V
IC307
11.3V
AVR
R378
1 3 10 1/2W
2
3.9V
+5V
R301
D303
330
R303 100K
12
R304 100K
5
D304
R302
330
1 2 3 4 5 6 7 8 9
CN601
Q R
FRONT PCB
CN607 R628 R627 R626 R625
12K 5.6K 3.3K 2.2K
B REC REV
2 B REC FWD
B CRO2
4 B SOL
CT-403/
KXF-W3030/
B PHOTO
E/-S only
6 B MODE SW
R631 R630 R629
B HALF 3.3K 2.2K 1.5K
8 MOTOR L
MOTOR H
MOT 12V
A CRO2
CT-401/ CT-403/
GND
KXF-W1030/-S KXF-W3030/
A SOL
only E/-S only
A PHOTO
A MODE SW
A HALF
CT-401/
KXF-W1030/-S only
R623 R622 R621 R620
5.6K 3.3K 2.2K 1.5K
CT-403/
KXF-W3030/
*
CN603
E/-S only
* CN602
FR01
0.56 1/2W CN301 TRANS PT301A
3
3 3
2
2 2
FR02
D311 0.56 1/2W
1
1 1
PT301B
CN301B TRANS
3
JK301
3
BUSY
DATA
2
2
1
BUSY 1
DATA
SYSTEM
CONTROL
S402
AC SELECT SW
S T
+5V
DUBB:
0.6V
R624
1.5K
3
2
CT-403/
KXF-W3030/E/-S only
5.1V
1 2
1 2 3 4 5 1 2 3 4 5
AC CORD
AC 120V/230V/240V
J002
4 H1
B1 B
5
6 J001 A1 A
POWER SW
J002
4 H1 A
B1
6 J001
B
7
POWER SW
AC COAD
KXF-W3030