Schematic of NES Breakout Controller
DOWN
LEFT
START
RIGHT
SELECT
A
UP
B
HOLES
HOLES
R3
Resistance
1kΩ
R9
Resistance
3.6kΩ
R2
Resistance
1kΩ
R11
Resistance
4.7kΩ
HOLES
R4
Resistance
1kΩ
HOLES
R6
Resistance
1kΩ
R7
Resistance
1kΩ
R1
Resistance
1kΩ
R5
Resistance
1kΩ
R10
Resistance
3.6kΩ
R8
Resistance
1kΩ
U1
R1
Resistance
1kΩ
R8
Resistance
1kΩ
R4
Resistance
1kΩ
L1
R10
Resistance
3.6kΩ
R6
Resistance
1kΩ
D1
R2
Resistance
1kΩ
R5
Resistance
1kΩ
D1
R3
Resistance
1kΩ
R7
Resistance
1kΩ
D2
NES OUT
R11
Resistance
4.7kΩ
NES IN
R9
Resistance
3.6kΩ
D2