Proview UK513 - MCU SCHEMATIC; MCU and Keypad Interface Circuitry

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
RS232 debug
to KEY PAD
NC
CHECK BY PREPARE BYAPPROVE BY
MCU(SYNC&MYSON 512&MX) A
MSTAR COSTDWON(DVI_I PIGTAIL) LVDS&RSDS OUT
Custom
67Wednesday, December 01, 2004
Title
Size Document Number Rev
Date: Sheet
of
UP
DOWN
POWER
SDA1
MENU
SCL1
AUTO
LEDO
LED_G
LED_O
LEDG
SCL1
SDA1
AUTO
LEDG
LEDO
DOWN
UP
POWER
MENU
INT4
DDC_DAT 3
MUTE7
PANELVCC_EN2
HWRESET 4
ALE 4
RDZ 4
WRZ 4
AD3 4
AD2 4
AD1 4
AD0 4
BKLT_EN2
DDC_CLK 3
PANEL12V_EN2
DDC_WP3
DDC_DAT13
DDC_CLK13
ST_DET1 4
MCU
MCU
VCC3V3
MCU MCU
MCU
MCU
MCU
VCC5V
VCC5V
VCC5V
VCC5V
MCU
MCU
MCU
R74
8.2K
RN13
10K
1 2 3 45
6 7 8
R70 1K
D33
ESD
R72
10K
RN6
10K
1 2 3 45
6 7 8
C66 22pF
RN5
10K
1 2 3 45
6 7 8
R68
10K
D34
ESD
D31
ESD
D10
1N4148
Y111.0592MHZ
RN10
22
1
2
3
4 5
6
7
8
C68 22pF
R66 100
R62
330
U4
24C16
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
R63
330
C65
.1u
R67
100
C69
.1u(NC)
U5
8051-PLCC
35
21
20
10
14
15
16
17
2
3
4
5
6
7
8
9
43
42
41
40
39
38
37
36
24
25
26
27
28
29
30
31
19
18
32
33
13
11
22 44
12
EA/VP
XTAL1
XTAL2
RESET
INT0/P3.2
INT1/P3.3
T0/P3.4
T1/P3.5
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.7/RD
P3.6/WR
PSEN
ALE/P
P3.1/TXD
P3.0/RXD
VSS VCC
NC
D35
ESD
Q6
MMBT3904
1
2 3
Q7
MMBT3904
1
2 3
R64
10K
D32
ESD
RN11
22
1
2
3
4 5
6
7
8
R65
10K
RN15
10K
1 2 3 45
6 7 8
S9
2 1
RN14
10K
1 2 3 45
6 7 8
C64
.1u
RN12
10K
1 2 3 45
6 7 8
TC14
10u/16V
CON1
1
2
3
4
5
6
7
8
R69 1K
CON2
1
2
3
4
S10
2 1