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2 Schematic Diagram
2.1.
A-Board (1/10)
A-BOARD (1/10)
A
MTK
TO 10/10
MTK_SCL
IIC_0
MTK_SDA
B
C
DMD_SDA
IIC_DMD
D
DMD_SCL
E
FACT_MODE_SCL
IIC_STM
FACT_MODE_SDA
F
SOFT_SDA
TO 10/10
SOFT_SCL
1
2
SUFFIX: UD
R077
R068
0
U
0
D
SUB3.3V
R0900
R0901
2.7k
2.7k
R0934
P
P
R0935
PF5H
TEMP SENSOR
R0921
R0920
R0919
R0918
TO 3/10
TO 7/10
P3V_SCL02
P3V_SDA02
STB3.3V
R0906
R0907
2.7k
2.7k
R0998
P
R0999
P
R0985
R0986
STB3.3V
R0983
R0984
2.7k
2.7k
R0908
P
P
R0909
SUB3.3V
R0981
R0982
3.3k
3.3k
R0979
MA_TER_TUNER_SDA
S
TO 2/10
MA_TER_TUNER_SCL
S
R0980
3
4
BE_SCL3
BE_SDA3
R0962
68
STM E2PROM
TO 7/10
STM-EEP_SCL
STM-EEP_SDA
5
6
3
FOR
FACTORY
USE
R0949
1k
R_LED
14
R0948
TP0903
1k
USBBOOT
13
TP0920
EEP_WP
12
TP0900
SBO
11
TP0901
SBI
10
Normal SDA
R0947
68
9
Normal SCL
8
TP0904
Standby SDA
7
TP0905
Standby SCL
6
FACT MODE SDA
5
FACT MODE SCL
4
TP0908
GND
3
SUB5V
TP0909
STM_SRQ
2
TP0910
1
CN0100
7
8
STB3.3V
SUB3.3V
R0974
R0975
R0970
47k
47k
47k
TO 6/10
SG_FACT
R0978
68
EEP_WP
TO 7,10/10
TO 10/10
SG_BOOT
UART_TX
TO 10/10
UART_RX
9
9
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