77
SCHEMATIC DIAGRAM
NX-720H(G)/720H
X54-383 1/1
2
1
3
4
5
6
7
AY
AZ
BA
BB
BC
50C
SB
R 2 5
3 . 3 k
R 2
9
2 2 0
R 1 2
1 0 0
R 2 8
1 2 0
C P 1
1 0 0 X4
I C 1
L C 7 5 8 5 7 W - E
1
P1/S1
2
P2/S2
3
P3/S3
4
P4/S4
5
S5
6
S6
7
S7
8
S8
9
S
9
10
S10
11
S11
12
S12
13
S13
14
S14
15
S15
16
S16
1 7
S 1 7
1 8
S 1 8
1
9
S 1
9
2 0
S 2 0
2 1
S 2 1
2 2
S 2 2
2 3
S 2 3
2 4
S 2 4
2 5
S 2 5
2 6
S 2 6
2 7
S 2 7
2 8
S 2 8
2
9
S 2
9
3 0
S 3 0
3 1
S 3 1
3 2
S 3 2
33
S33
34
S34
35
S35
36
S36
37
S37
38
S38
3
9
CoM4/S3
9
40
CoM3
41
CoM2
42
CoM1
43
KS1/S40
44
KS2/S41
45
KS3/S42
46
KS4
47
KS5
48
KS6
4
9
K I 1
5 0
K I 2
5 1
K I 3
5 2
K I 4
5 3
K I 5
5 4
V D D
5 5
V L C D
5 6
V L C D 1
5 7
V L C D 2
5 8
V S S
5
9
T E S T
6 0
o S C
6 1
D o
6 2
C E
6 3
C L
6 4
D I
R 2 6
4 . 7 k
330
R1
9
D 2 3
B30-2151-05
R15
0
R20
0
D 2
D A 3 S 1 0 1 F
R 3 4
2 7 0
R 3 5
2 7 0
R 3 6
2 7 0
R 3 7
2 7 0
D1
DZ2J062(M)
J 1
100
R 2 4
3 . 3 k
R23
47k
R14
1.2k
R
9
0
R 1 7
0
R 7
0
R 3
1 0 k
R 2
1 0 k
R 4
1 0 k
R 5
1 k
D25
MINISMDC020F
K T C 4 0 7 5 E ( Y , G R )
Q 8
K T C 4 0 7 5 E ( Y , G R )
Q 6
K T C 4 0 7 5 E ( Y , G R )
Q 3
R40
4.7k
R 3 8
4 . 7 k
R 3
9
4 . 7 k
Q 1 0
LTC014EEBFS8
C13
0.01u
C1
100p
C15
1000p
C12
100p
C11
220p
C14
1000p
C2
220p
C5
220p
C3
C24
0.01u
C23
1000p
C4
100p
C7
1000p
C6
470p
C27
1u
C21
0.01u
C31
1000p
C32
0.047u
C33
0.047u
D 2 6
H N 2 S 0 3 F E
R41
100
C25
0.01u
C34
47p
C35
L2
D27
DZ2J062(M)
K T C 4 0 7 5 E ( Y , G R )
Q 1 1
R 4 2
2 . 7 k
R43
10k
R44
2.2k
R45
4.7k
L3
C36
220p
C N 1
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1
9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2
9
3 0
Q S T 7
Q
9
D 7
B 3 0 - 2 3 3 7 - 0 5
D 5
B 3 0 - 2 3 3 7 - 0 5
D
9
B 3 0 - 2 3 3 7 - 0 5
D 6
B 3 0 - 2 3 3 7 - 0 5
D 1 1
D 1 5
D 1
9
D 1 2
D 1 6
D 2 0
D 1 3
D 1 7
D 2 4
D 2 1
D 8
B 3 0 - 2 3 3 7 - 0 5
D 2 2
B30-2321-05
KEY BACKLIGHT
LCD BACKLIGHT
GND
PTT
HOOK
MIC
POWER
MKEY
LCDDI
LCDCL
LCDCE
50C
SB
ME
LCDDO
RLED
GLED
BLC
SP+
SP-
BLED
GND
GND
EMG
GND
NC
GND
MBL
GND
B30-2337-05
POWER
SP+
DISPLAY UNIT (X54-3830-10)
D 1 8
D 1 4
R22
0
L 1
MBL
SB
GND
PTT
ME
MIC
HOOK
DM
220p
R1
C10
1000p
R18
220
220p
KMI1
KMI2
KMI3
KMO3
B
KMO2
KMO1
C
S
A
LCD
SEG30
SEG2
9
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG21
SEG22
SEG17
SEG20
SEG18
SEG1
9
SEG16
SEG15
SEG14
SEG13
SEG11
SEG7
SEG
9
SEG12
SEG8
SEG10
COM1
SEG4
SEG42
SEG6
SEG1
SEG2
SEG3
SEG5
COM2
COM3
COM4
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG40
SEG41
INT SP
PROTECTION
VOLTAGE
PROTECTION
SURGE
D 1
D 2
TX/BUSY
INDICATION
SWITCH
TX LED
CONTROL
SWITCH
Q3
TX LED
SWITCH
Q6
BUSY LED
INDICATION
(BLUE)
D 2 2
LCD DRIVER
D 5-
9
D 1 1-21,24
SWITCH
LCD BACKLIGHT
SWITCH
KEY BACKLIGHT
SWITCH CONTROL
KEY BACKLIGHT
SP+
SP-
MIC
KMI1
KMI2
KMI3
KMO3
KMO2
KMO1
5.0V
HOOK:4.96V
PTT:4.62V
SB:13.53V
MBL:5.00V
3.27V
LED ON:2.26V
LED OFF:0V
LED ON:5.0V
LED OFF:0V
T:1.76V
R:0V
T:0V
R:2.06V
T:1.61V
R:5.0V
T:5.0V
R:2.13V
T:0V
R:4.95V
5.0V
5.0V
9.72V
12.93V
3.77V
3.77V
1.
8
9V
2.07V
4.
8
2V
4.62V
5.0V
13.5V
Summary of Contents for Nexedge NX-720H
Page 83: ...NX 720H G 720H 83 MEMO ...