Read Panasonic KX-NT511ARUW / KX-NT511ARUB Service Manual online
7
KX-NT511ARUW/KX-NT511ARUB
4.2.
Circuit Operations
4.2.1.
LCD Circuit
LCD data are output from pin 66 of IC101 to LCD module.
LCD contrast is set by electronic volume(pin H18,H19).
LCD contrast is set by electronic volume(pin H18,H19).
4.2.2.
Reset Circuit
Reset Signal is output from IC301 and input into IC101-pin V12.
LCD_A0
LCD_CS
LCD_D0
LCD_CLK
LCD_RST
R144
C133
C132
C131
C130
DGND
C129
CN2
1
Vss
2
ResetB
3
V0
4
V1
5
V2
6
V3
7
V4
8
Vss
9
Vdd
10
SCL
11
SI
12
CSB
13
RS
14
Vss
R145
C134
DGND
3.3V
DGND
R141
C135
DGND
R140
R143
R142
Q106
1
2
3
4
5
DGND
1
8
2
7
RA110
3
6
4
5
LCD_5V
L103
5V
To LCD
IC101
F14
E17
G14
E15
H18
H19
H17
TEST_ANA
C329
AGND
VDD1.2V
PWR_RST
C328
C330
P13
TPX2
R18
TPY1
T18
TPY2
P18
TPS
V12
RSTN
T12
TEST_ANA
L16
IF_CLK_IF
P14
VREF
D12
VDD0
E5
VDD1
E6
VDD2
E8
VDD3
H5
VDD4
R305
R306
C326
C327
DGND
DGND
R304
5V
DGND
DGND
VDD3.3V
IC301
1 VSS
2 VDD
3
CD
4
OUT
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