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Only for training and service purposes
3. BB Circuit Technical brief
3.7 LCD Display
LCD module include:
- Main LCD: 1.43" ,128X160 qqVGA, 262K , color TFT , TF
- Backlight : 3 pieces of white LED
[Figure3.7-1] LCD connector circuit diagram
LCD CON
C269 1u
_DIF_WR
C249
2.2K
R216
1u
1uC263
C250 1u
_DIF_CS1
LCD_RS
C267 1u
DIF_VSYNC
2V62_VIO
C268 1u
1uC258
DIF_D0
DIF_D7
1uC261
2V62_VIO
1u
C262
C266
1u
9
27
28
29
3
30
31
32
33
34
35
36
4
5
6
7
8
13
14
15
16
17
18 19
2
20
21
22
23
24
25
26
CN203
AXT536124
G1 G2
G3 G4
1
10
11
12
C252 1u
_DIF_RESET
2V85_VLCD
MLED2
VDD
GVDD
VCL
C21-
C22-
VGH
_DIF_CS1
LCD_RS
C21+
C11-
C11+
AVDD
MLED1
DIF_D7
DIF_D5
DIF_D3
DIF_D2
DIF_D0
MLED_OUT
DIF_D1
DIF_D4
DIF_D6
_DIF_RD
C21-
C21+
C11-
C11+
VGL
AVDD
VDD
VGH
VCL
GVDD
MLED3
_DIF_WR
_DIF_RESET
DIF_VSYNC
VGL
C22+
C22-
C22+