Read Panasonic KX-NT511ARUW / KX-NT511ARUB (serv.man2) Service Manual Supplement online
4
KX-NT511ARUW/KX-NT511ARUB
1.2.2. Circuit Operations
1.2.2.1. LCD Circuit
LCD data are output from pin B9 of IC302 to LCD module.
LCD contrast is set by electronic volume(pin A13,C13).
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
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
R116
5V
To LCD
IC302
R1
B9
B10
A9
C13
A13
D13
1.2.2.2. Reset Circuit
Reset Signal is output from IC301 and input into IC302-pin L12.
C329
AGND
VDD1.2V
PWR_RST
C328
C330
L12 RSTN
M13 TEST_ANA
K12 VREF
E11 VDD0
G4 VDD1
K9 VDD2
K7 VDD3
K8 VDD4
R305
C326
C327
DGND
DGND
5V
DGND
DGND
VDD3.3V
IC301
1 VSS
2 VDD
3
CD
4
OUT
IC302
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