EUROCOM M770CU, Service Manual

Page: 103 / 120

Schematic Diagrams
Power 3.3V/5V B - 39
B.Sch
e
m
a
tic D
iag
rams
Power 3.3V/5V
Z 3 6 1 4
Z 3 6 1 3
P C 1 6 0
*4
.7
U
_
2
5
V
_
0
8
Z 3 6 05
P J1 6
*O P E N -5 m m
1 2
P R 20 2 15 K _1 % _ 0 4
P C 1 7 9
. 1 U _ 16 V _ 0 4
P D 2 1 F M0 5 4 0 -N
A C
P R 2 01 1 1 3 K _ 0 4
P C 7 2
.
1U
_
50V
_0
6
P L 1 4
4 . 7 U H 5 . 5 A 6. 8 * 7 . 3 *3 . 5
1 2
+
P C 1 6 8
* 1 50 U _ 6. 3V _V
P C 1 8 7
. 1 U _ 5 0V _0 6
P C 1 7 0
1 U _ 1 0V _0 6
P R 1 89
1 0 _ 06
P C 1 8 1
. 0 1 U _ 5 0 V _ X 7 R _ 0 4
P C 1 80
2 2 00 P _5 0 V _ X 7 R _ 0 4
P R 1 9 2
1
37K
_
1%
_04
P R 1 8 6
10K
_
04
P C 16 3
1 0 0 0P _ 50 V _ X 7 R _0 4
P C 1 7 2
1U _ 2 5 V _ X5 R _ 0 8
P C 1 8 4
. 0 1 U _ 5 0 V _ X 7 R _ 0 4
P R 1 9 7
1 0 K _ 0 4
P R 20 8 1 5 K _ 1% _ 0 6
P C 1 5 7
2 . 2 U _6 . 3 V _ 0 6
P L1 3
4 . 7 U H 5 . 5 A 6. 8 * 7 . 3 *3 . 5
1 2
P D 2 3
F M 0 5 40 - N
A
C
P R 1 6 9 4 2 2 K _ 1 % _ 06
P R 1 8 7
2 0 K _ 0 4
P R 2 05
2 . 9 4 K _ 1 %_ 0 4
+
P C 1 7 3
1 5 0 U _ 6 . 3 V _ V
P C 1 7 1
1
0
0
0
P_
5
0
V_
X7
R
_
0
4
+
P C 1 9 0
1 5 0 U _6 . 3 V _ V
P J 19
* OP E N -5 m m
1 2
P R 2 2 8 * 9 . 1 K _ 0 4
P C 1 7 7
1 U _ 1 0 V _ 0 6
P Q 5 1
A O 4 4 6 8
4
6
2
5 7
3 1
8
P C 15 3
3 0P _ 50 V _ 0 4
+
P C 1 89
1 5 0U _ 6 . 3 V _ V
P R 1 8 2
*1 5 m i l_ s h o r t
P C 17 5
. 0 1 U _ 5 0 V _ X 7R _ 0 4
P Q 5 3
A O 4 4 6 8
4
6
2
5 7
3 1
8
P D 2 0 F M0 5 4 0 -N
A C
P C 1 6 7
*.
1U
_5
0
V
_0
6
P C 15 9
* 3 0 P _ 5 0V _0 4
P R 21 1
*1 5 m i l_ s h o rt
P R 1 99
1 0 K _ 1 % _0 4
P C 7 3
*
4.
7U
_
25V
_
08
P R 2 0 9
*1 5 m i l_ s h o rt
P C 1 7 6
3 0 P _ 5 0 V _ 0 4
P R 1 8 5
7 5 K _ 0 4
P R 16 8 1 0 _0 6
S Y S 5V
P U 1 1
S C 4 1 2 A
L X
1
B S T
2
V C C
3
D L
4
GN
D
5
RT
N
6
N.
C
7
N.
C
8
F B
9
V OU T
1 0
P GD
1 1
E N
1 2
IL
IM
13
N.
C
14
N.
C
15
DH
16
P A D
1 7
P C 16 9
.1
U
_
5
0
V
_
0
6
P Q 4 8
A O 4 4 6 8
4
6
2
5 7
3 1
8
P C 1 83
2 2 00 P _5 0 V _ X 7 R _ 0 4
P D 1 8 F M0 5 4 0 -N
A C
P R 1 7 4
9 1 K _ 1 % _ 0 6
P C 1 6 6
1 U _ 2 5 V _ 0 8
P Q 4 7
A O 4 4 6 8
4
6
2
5 7
3 1
8
P R 1 7 7
1 0 K _ 1 % _ 0 4
PU10
SC418
FB
1
FB
L
2
VD
D
A
3
VO
U
T
4
NC
5
V I N
6
V L D O
7
B S T
8
D H
9
L X
1 0
PG
N
D
11
DL
12
VD
D
P
13
RP
S
V
14
PG
O
O
D
15
I LI M
1 6
E N / P S V
1 7
A GN D
1 8
R T O N
1 9
E N L
2 0
PA
D
21
P C 1 7 4
. 01 U _ 50 V _X 7 R _0 4
P C 1 8 8
1 U _ 1 0V _0 6
P R 2 0 3
1 0 K _ 0 4
P D 1 9 F M0 5 4 0 -N
A C
P R 20 0 *1 0 0 K _ 0 4
P C 16 5
1U
_1
0V
_
06
P C 1 8 6
. 1U _ 1 6V _ 04
S G N D 6
S G N D 4
S G N D 6
S G N D 4
S Y S 5 V
S G N D 4
S G N D 6
S G N D 4
S G N D 6
V D D 5
I N T V C C 2
S GN D 4
S Y S 1 5 V
I N T V C C 2
S GN D 4
S Y S 5 V
V I N
S Y S 1 0 V
S G N D 4
S G N D 4 S G N D 4
V I N 1
V D D 3
I N TV C C 2
V I N
S G N D 6
S Y S 3 V
S Y S 1 5 V 1 2 , 1 9 , 3 7
V I N 1 3 7
V I N 1 2 , 3 3 , 3 7, 3 9 , 4 0 , 4 1 , 4 2 , 43 , 4 4 , 4 5
V D D 5 3 7
V D D 3 2 0 , 3 3 , 3 6, 3 7 , 4 5
S Y S 5 V 3 7 , 3 9 , 4 5
OCP
P D 2 4
F M 5 8 22
A
C
6 -1 3- 42 2 31 -2 8 B
Z 3 6 19
Z3
6
25
Z 3 6 20
Z 3 61 7
Z 3 61 6
Z 3 61 5
11/17
OCP
11/17
Z 36 1 0
Z 3 6 1 2
Z 3 60 3
Z 3 6 0 1
Z 3 6 1 1
Z 36 0 7
L G A T E 1
Z 3 6 0 6
Z 36 0 9
Z 3 6 22
Z 3 6 18
Z 36 0 8
Z 3 60 2
Ra
5A
5A
Z 3 6 21
L GA T E 1
Z 3 6 04
VDD5
P D 2 7 F M 05 4 0 - N
A C
P D 2 2
F M 5 8 22
A
C
P R 22 9
0_0
4
Rb
VDD3
P C 1 82
4.
7
U
_2
5V
_
08
P C 1 6 1
4.
7U
_2
5V
_
08
Sheet 38 of 55
Power 3.3V/5V