Citizen CL-E720DT, Technical Manual

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Chapter 6. Circuit Diagrams
CL-E720DT
6-12
SA Main PCB (10/12) [USB I/F & DAC]
1 2 3 4 5
6 7 8
A
B
C
D
8 7 6 5 4 3 2 1
D
C
B
A
Title
Number Revision Size
A4
Date: Sheet of
File: Drawn By:
A
MAIN PCB / USB INF, DAC (10/12)
0 S U B V
0 R 5 V 0 R 5 V 0 R 5 V
0 R 5 V
0 R 5 V
0 S U B V
0 R 4 2 V
0 R 5 V
3 R 3 V
3 R 3 V
0 R 5 V
F F O C G L V 5
0 M D B S U 3
0 P D B S U 3
3 0 S U B V B S U
1 1 E C 3 V
K C S C A D 5
T A D C A D 5
D C C A D 5
7 R _ T M B R A D
9 S N E S A D
8 T M F P A D
1 8 3 T
3 4 1 C
6 1 B / u 1 . 0
7 1 1 R
% 1 / k 0 2
9 0 1 R
k 7 4
C 7 1 U
" ) A N ( "
- V
4
+ V
8
B 5 1 U
M V F S 3 0 9 2 A B
0 0 1 1 2 1 R
6 D
B 8 . 6 S Z D U
7 L
1 7 4 G K 8 1 M L B
4 4 1 C
6 1 B / u 1 . 0
0 2 1 R
k 1
2 1 1 R
% 1 / k 0 3
6 L
0 0 9 N S N 0 P L D
1 2
3 4
6 4 1 C
6 1 B / u 1 . 0
7 9 3 T
4 1 1 R
% 1 / k 0 1
0 9 3 T
5 L
1 7 4 G K 8 1 M L B
2 9 3 T
5 9 3 T
9 3 1 C
0 5 B / p 0 0 0 1
5 1 1 R
% 1 / k 0 3
7 D
1 0 0 1 P B X
1 2 3
4 5 6
6 6 1 R
k 1
0 4 1 C
0 5 B / p 0 0 0 1
4 8 3 T
7 0 1 R
% 1 / k 0 2
6 8 3 T
4 9 3 T
2 1 J
0 0 4 0 0 - 0 2 1 5 1
S U B V
1
- D
2
+ D
3
D N G
4
D L H S
5
8 0 1 R
k 7 4
6 3 1 C
0 1 B / u 1
6 9 3 T
9 8 3 T
6 1 1 R
k 0 0 1
C 5 1 U
M V F S 3 0 9 2 A B
- V
4
+ V
8
7 4 3 1 1 R
9 9 3 T
8 1 1 R
% 1 / k 0 3
3 1 Q
M T 5 1 1 C T D
2 4 1 C
0 5 B / p 0 0 0 1
6 1 U
A S 4 6 1 0 2 A 2 R
1 l f e r V
1
3 O A
6
D N G
9
O D
4 1
1 O A
2
2 u f e r V
5
I D
2 1
D L
1 1
1 C N
0 1
K L C
3 1
2 O A
3
1 u f e r V
4
4 O A
7
2 l f e r V
8
C C V
5 1
2 C N
6 1
7 3 1 C
0 1 B / u 1
2 1 Q
M T 5 1 1 C T D
0 0 1 9 1 1 R
3 8 3 T
5 3 1 C
0 5 B / p 0 0 0 1
3 9 3 T
A 7 1 U
" ) A N ( "
4 1 Q
M E 5 1 1 C T D
8 3 1 C
0 5 B / p 0 0 0 1
4 3 1 C
0 5 B / p 0 0 0 1
1 4 1 C
6 1 B / u 1 . 0
2 8 3 T
B 7 1 U
" ) A N ( "
1 9 3 T
0 1 1 R
% 1 / k 0 0 1
A 5 1 U
M V F S 3 0 9 2 A B
5 8 3 T
H→L: 3.15[V](4.2[V])
L →H: 2.67[V](3.56[V])
(L/H: USB connected/disconnected)
100k
100k
100k
100k
+3
-2
1
+5
-6
7
+3
-2
1
+5
-6
7
1 2
3 4
PPS00152-**, PPS00218-**