stuffing
Option
+5V
GND
GND
+5V
GND
R477
100R
B426
MCB1608S121G
1
2
S404
HEADER 12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C496
0.1uF
B422
MCB1608S121G
1
2
B427
MCB1608S121G
1
2
C504
0.1uF
B428
MCB1608S121G
1
2
C500
0.1uF
C497
0.1uF
B429
MCB1608S121G
1
2
C505
0.1uF
C499
0.1uF
B430
MCB1608S121G
1
2
C503
0.1uF
B431
MCB1608S121G
1
2
R475
4.
7K
R474
4.
7K
R485
10K
C502
0.1uF
R484
10K
Q404
DTC114TKA
U408
AT24C16
1
2
3
4
5
6
7
8
A0
A1
A2
VSS
SDA
SCL
WP
VCC
R479
10K
Q403
DTC114TKA
R481
10K
R480
10K
R478
150R
R483
150R
R486
10K
B423
MCB1608S121G
1
2
C498
0.1uF
C501
0.1uF
R487
10K
C495
0.
1uF
B424
MCB1608S121G
1
2
R482
10K
R476
100R
B425
MCB1608S121G
1
2
EXIT
2
PLUS
2
MINUS
2
POWER_ON 2
LED_AMBER 2
SCL
2
SDA
2
LED_GREEN 2
RESET
2
LEFT
2
RIGHT
2
SELECT
2
MODEL LCD1970
NX
(
B
)
/(C)
SCHEMATIC DIAGRAM MAIN BOARD (
Key Pad EEPROM
) (
4
/
4
)
10-
4