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KX-T7730CA
13 Exploded View and Replacement Parts List
13.1. IC1
Pin No.
1
RE0
2
TEST
3
OSC1
4
OSC2
5
RESET
6
X1
7
X2
8
GND
9
D0
10
D1
11
D2
12
D3
13
D4
14
D5
15
D9
16
D10
17
D11
18
D12
19
D13
20
R00
21
R01
22
R02
23
R03
24
R10
25
R11
26
R12
27
R13
28
R20
29
R21
30
R22
31
R23
32
R30
33
R33
34
R32
35
R31
36
R40
37
R41
38
R42
39
R43
40
R60
41
R61
Terminal Name
I/O Function
I
I
I
O
I
I
O
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O Setting
I
LCD linage H:3line Model L:Other
-
Vcc Connection
-
4MHz
-
4MHz
-
-
Not used Vcc Connection
-
Open
-
O
HS SM mute
O
HF MM mute
O( I )
HF SM mute(This is also model code.)
O
HF Relay
O
HS power on
O
HF power on (CS)
I
HOLD Key L:Key press
O
DO
O
DCLR
I
DI
I
DI_INT
I
KEY-IN0
I
KEY-IN1
I
KEY-IN2
I
KEY-IN3
I
KEY-IN4
I
KEY-IN5
I
KEY-IN6
I
Hook-SW
O
KEY/LED-COM0
O
KEY/LED-COM1
O
KEY/LED-COM2
O
KEY/LED-COM3
I/O
KEY-COM4
O( I )
LCD_Contrast1(This is also model code.)
O
*LCD_Contrast0
I/O
KEY-COM5
I
Ring vol off
O
LCD_CLK
O( I )
LCD_STB/(Model Code)
O
LCD_DO
O
LED0
O
LED1
28
Description
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