13
7 Schematic Diagram
7.1.
Main-1 Block
7231-02-11
CQ-RX400U MAIN 1/2
8.8
5.0
5.0
4.0
4.0
4.0
4.0
0
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
0
0
7.3
7.3
5.0
14.4
7.4
0
7.3
7.3
7.3
7.2
0
7.2
7.2
7.2
7.3
0
7.3
14.4
7.3
4.9
7.3
0
4.9
0
0
5.0
4.0
0
0
0
5.0
0
4.9
0
5.0
5.0
5.0
4.9
0
5.0
4.6
0
0
0
0
14.3
0
0
0
1.3
0
0
0
0
0
8.1
8.1
1.3
0
3.6
3.6
0
0
0
5.1
0
8.1
0
8.1
8.1
4.9
0
0
0
8.1
0
8.2
0
8.2
8.0
8.0
7.2
1.3
2.2
0
0
5.0
5.0
0
0
0
0
0
0
0
0
0
3.2
3.2
0
5.1
5.2
6.4
5.0
4.9
8.0
14.0
13.4
4.9
3.2
9.1
1.2
9.5
1.6
1.6
1.5
2.1
1.7
1.7
1.7
1.8
1.7
1.6
0
1.9
1.9
3.2
1.6
1.6
2.4
0
3.2
1.5
1.6
1.6
1.7
0
1.5
0
0
5.0
1.6
0
5.1
5.6
5.0
4.9
3.3
3.3
4.0
0
1.2
1.2
1.1
3.1
5.1
0
3.1
3.1
0
1.5
3.1
0
3.1
00
0.9
3.0
3.0
2.2
4.9
0
4.9
5.1
3.1
2.3
0
0
0
3.1
0
0
1.5
3.1
0
1.5
1.5
3.1
3.1
1.5
1.5
1.5
0
1.6
3.8
3.4
1.6
4.9
1.6
0
3.9
3.3
7.4
0
7.4
3.6
3.6
1.6
8.0
8.0
1.6
1.6
3.8
3.5
0
0.5V/DIV,10uS/DIV
1V/DIV,10uS/DIV
1V/DIV,20nS/DIV
2V/DIV,50mS/DIV
2V/DIV,10mS/DIV
3032-14-53
CN1
8V
8V
8V
9V
9V
9V
9V
9V
L
R
L
R
L
R
L
R
L
R
L
R
L
R
5V
5V
5V
5V
5V
5V
5V
5V
10V
10V
10V
10V
R
L
R
R
L
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
L
R
L
R
L
R
L
R
R
L
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
R
L
R
L
L
L
L
R
R
R
R
L
5V
8V
8V
8V
7231-05-11
CN901
YESAP387
YESAD155
YESAN154
YESAN152
YESAN154
YESAN152
YESAN149
YESAD188
YESAD191
YESAD191
YESAD155
YESAD155
YESAD149
YESAD150
YESAD189
B1CBGF000005
YESAD144
YESAM463
YESAM440
YESAM391
YESAM438
YESAM429
YESAM437
YESAM439
YESAM441
YESAN153
YESAN153
YESAN155
YESAN155
YESAD188
YESR
TD016
YESAD193
YESLT032
YESAM344
YESAD192
YESAD192
YESAN079
YESAM424
YESAD197
YESAD196
YESAD198
YESAN157
YESAD192
YESAD192
YESAD192
YESAD192
YESAD192
YESAD192
YESAD192
YESAD192
YESAN156
YESAD144
YESAD143
YESAD167
YESAD133
YESAD133
PIN49
PIN51,PIN52
Waveform
Pin No.
10
0.027
0.027
47K
47K
6.3V330
6.3V330
47K
50V2.2
16V22
9V
5V
1V/DIV,20nS/DIV
1V/DIV,10mS/DIV
1V/DIV,5uS/DIV
1V/DIV,5uS/DIV
YESAN155
YESAN155
YESAD143
1/4W
1/4W
YESAM400
YESAM426
YESAD195
YESAD192
YESAD192
YESAD192
YESAD192
0
0
0
0
0
0
0
AMP
,
ANT_CNT
0
5.0
0
5.0
11.0
5.0
5.0
5.2
0
5.0
47K
47K
YESAM436
1/4W
0
0
5.0
0
0
0
0
Summary of Contents for CQ-RX400U
Page 7: ...7 IC751 YESAM424 IC801 YESAM429 ...
Page 17: ...17 9 Printed Circuit Board 9 1 Main Block Top View ...
Page 18: ...18 9 2 Main Block Bottom View ...
Page 19: ...19 9 3 Display Block ...
Page 20: ...20 9 4 CD Interface Block ...