Atari 2600

Defective Switch Troubleshooting Procedure
Put inoper-
ative switch in
up (open)
position.
I
Is trace
3201 pin for that switch
line
shorted
(see connection chart)? to groud?
Yes
Repair
P
b dv now
present on
J2Ol pin for
that switch
(see chart)?
Does panun
on Screen
change when
switch
b
flipped?
I
Is on side of
switch tied ,to
ground as Shown
in schematic?
CONNECTION CHART
Switch
11 0 1 Pin No.
lad< h White 4
Left Difficulty S
Right Difficulty 7
select 9
Reset 8
2600/2600A Domestic VCS
2'
Replace switch
i