Atari 2600

2600A Defective Switch Troubleshooting (Continued)
I
Is cap on that line shorted ,Yes
to ground? (See chart)
/Is there +5v on the RAM
Replace switch.
L
Is switch internally
shorted?
pin for that switch?
(See chart)
I
&
Yes
L
I
I
Open between RAM pin
and inoperative switch.
d A
Swapout
1) A202
2) A200
3) A201
Repair
0
CONNECTION CHART
A202
Switch Pin No.
lack and
White 2 1
Left Difficulty 17
Right Difficulty 16
Select 2 3
Reset 2 4
Pg. 6-2
2600/260014 Domestic VC: