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13
KX-HDV230 Series
4.2.7.
Key Circuit
The key data is under the matrix control by IC101.
The key information output from KEY_OUT is input into KEY_IN, when the key is pressed.
The HOOK key is independent from Key Scan Matrix and taken into the port singularly.
The key information output from KEY_OUT is input into KEY_IN, when the key is pressed.
The HOOK key is independent from Key Scan Matrix and taken into the port singularly.
1. Main Key Circuit
2. Self-Label Key Circuit
IC101
J18
J17
V11
H17
U9
T8
R19
U8
W8
V8
R9
KEY_IN[0]
KEY_OUT[3]
KEY_OUT[4]
KEY_IN[1]
KEY_OUT[0]
KEY_OUT[2]
KEY_IN[5]
KEY_OUT[1]
KEY_IN[2]
KEY_IN[3]
KEY_IN[3]
KEY_OUT[5]
KEY_IN[4]
SW501
1
2
SW502
1
2
SW503
1
2
SW504
1
2
SW505
1
2
SW506
1
2
SW507
1
2
SW508
1
2
SW509
1
2
SW510
1
2
SW511
1
2
SW512
1
2
SW513
1
2
SW514
1
2
SW515
1
2
SW516
1
2
SW517
1
2
SW518
1
2
SW519
1
2
SW520
1
2
SW521
1
2
SW522
1
2
SW524
1
2
SW529
1
2
SW523
1
2
SW525
1
2
SW526
1
2
SW531
1
2
SW530
1
2
SW528
1
2
SW527
1
2
SOFT1
SOFT2
ENTER
SOFT3
1
2
3
MESSAGE
REDIAL
4
5
6
CONF
7
8
9
*
0
#
SPHONE
MUTE
HEAD
R
E
F
S
N
A
R
T
+
l
o
V
-
l
o
V
DOWN
UP
HOLD
CANCEL
LEFT
RIGHT
HOOK SW
IC101
T8
V8
R9
U8
W8
W10
H19
J16
KEY_IN[8]
KEY_IN[7]
KEY_IN[6]
KEY_OUT[4]
KEY_OUT[3]
KEY_OUT[2]
KEY_OUT[1]
KEY_OUT[0]
SW613
1
2
SW601
1
2
SW602
1
2
SW603
1
2
SW604
1
2
SW605
1
2
SW606
1
2
SW607
1
2
SW608
1
2
SW609
1
2
SW610
1
2
SW611
1
2
SW612
1
2
CO11
CO3
CO12
CO4
CO5
CO6
CO7
CO8
CO9
CO10
CO1
CO2
PAGE
CN501
Self-Label BOARD
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