Kenwood CT-401 Service Manual page 7

K L
Q Q
3 7 6 3 1 5 1 5 0
MAIN PCB
R167
+12V
1/4W
IC103
9.6V
(1/2)
R145 C147 9.7V
C153 R159
10K 2.2u50 8
5
1u50 1K
7
+
6
+
9.7V
Q117
C149 R155 56K
R161
220P
C195 100P
5.6K
C151
LINE
100u16
MUTING
+
PRE AMP
Q118
C196 100P
R162
C150 R156 56K
5.6K
220P
C154 R160
9.7V 2
R146 C148
1 1u50 1K
10K 2.2u50 3
+
+ 4 9.7V
9.6V
IC103
(2/2)
+12V
T E
L 1 3 9 4 2 2 9 6 5 1 3
C335
100u16
+
+5V
R347
22K
J347
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
9 PB-EQ/NORMAL
10
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
w w w
16
0
.
M N
JK101
R159A R165
1.5K 100
L
PLAY
R
R179
Q111
R217
39K
5.6K
L
Q115
REC
R180
Q112
39K
R
R218
5.6K
INPUT CN104 CN108
R160A Q116 R166
L IN
1.5K 100 MUTING
5 5
R IN
4 4
GND
3 3
2 1
L-REC-LEVEL L OUT
2 2
R-REC-LEVEL
R OUT
1 1
+12V
+5V
5.1V
RESET
5.1V
5.1V
5.1V IC303
R349 C310
D315 D318
1K 1u50
OUT IN
+
GND
Q302
RESET
IC
C312 0.022
+5V
IC304
1 8
2 7
3 6 R354
4 5
22K
EEP ROM
48
EE-PROM-SCL
47
EE-PROM-SDA
46
45
2099-DE 45
44
2099-LCK 44
43
2099-CLK 43
42
SI
41
2099-DO 41
40
B-REC-REV-SW 40
39
B-REC-FWD-SW 39
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
x a o
R393
y
47K
i
1 2
CN603
O P
Q306
12.0V
12.1V
8
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
39
R366 4.7K
63
R367 4.7K
36
R368 22K
VR101
50K(A) 38
L-REC
R389 4.7K
LEVEL
37
VR101
R365 4.7K SFR301 2K(B)
50K(A) R-REC
LEVEL
62
R370 4.7K
TAPE SPEED
33
R369 22K
Q310
R373
2.2K
Q311
21
SOL.A
12.0V
CONT.
35
34
+5V
Q Q
3 7 6 3
+12.0V
IC305
12.1V 21.6V
AVR
1 3
OUT IN +21.6V
GND
2
IC306
12.1V 1 3
+12V OUT IN
GND
+12.0V
AVR
2
+12V
+21.6V
4.5V
D321 D322
+5.0V
IC307 11.3V
AVR
R378
1 1/2W
1 3
OUT IN
5.1V
GND
2
3.9V
+5V
R301
D303
5.1V 330
R303 100K
12
R304 100K
5
D304
R302
330
u 1 6 3
.
1 2 3 4 5 1 2 3 4 5 6 7 8 9
CN601
CN602
Q R
FRONT PCB
2 4
9 9 8
KXF-W1030
CT-401 ONLY
R628 R627 R626
12K 5.6K 3.3K
CN607
16 B-REC REV
15 B-REC FWD
14 B-CRO2
+12V 13 B-SOL KXF-W3030/E/-S
12 B-PHOTO
11 B-MODE SW R631
3.3K
10 B-HALF
R379 3.9K
9 MOT L
8 MOT H
+12V 7 12V
6 A-CRO2
5 GND
KXF-W3030/E/-S KXF-W1030
+12V 4 A-SOL CT-403 ONLY CT-401 ONLY
3 A-PHOTO
2 A-MODE SW
1 A-HALF
KXF-W1030
CT-401 ONLY
R623 R622 R621
5.6K 3.3K 2.2K
1 5 1 5 0 8 9 2 4
KXF-W3030/E/-S
CT-403 ONLY
CN603
EXCEPT
(M) TYPE
CN301 CN302
R01
0.47 1/2W
1
2
D311
R02
0.47 1/2W
3
CN302
JK301
m
SYSTEM
c o
CONTROL
AC SELECT SW
(M) TYPE
ONLY
S T
2
9 9
+5V
DUBB:
0.6V
R625 R624
2.2K 1.5K
3
CT-403 ONLY
R630 R629
2.2K 1.5K
2
KXF-W3030/E/-S
CT-403 ONLY
KXF-W3030/E/-S
CT-403 ONLY
R620
1.5K
5.1V
9 8 2 9 9
1 2 1 2 3 4 5 1 2 3
CN602
CN304
1 (T,E) : AC230V~ 50Hz
(K,P) : AC120V 60Hz
2
1
CN303
1 1
2
J326 J329
3 2 2
POWER SW
CN401
CN304
1
AC110-120V/220-240V~
50/60Hz
2
1
CN303
1 1
2
F301
1200mAL/250V
J327
3 2 2
FC302 FC301
POWER SW
CN401
S402