Atari 2600

Paddle Lines Test
Put shorting
plugs
in. Put
VCS into
Diagnostic
Matrix mode.
Swapout
0 A201
2) A200
3) A202
1
J
I
Is there con-
tinuity between
the 1202 or 3203
pin
(see chart)
and the A20 I?
2
Checx 3202/3203 for RC
waveform (see Fig. 4-10).
Is waveform present on
each
of the pins shorn
I Yes
No
-
in char??
Check nace lines and
resistors for opens
.
rn
a
Repair
r
or shorted.
DO paddle lines now
work OK?
b
k RC waveform appear
on the appropriate J202
or J203 lie?
(Set Chart)
Yes
Line now work?
tiepav open
trace between
A201
and 12021
Yes
-
Yes
Connection Chart
pg. 4-2
b
3293.
Pin Pin Pi Cap
Plaver A201 3202 203
--
1 40
5 - CZ15
2 39 9 -
C216
3 38 - 5
C217
4 37 - 9 C218
I
b
#
2600/2600A Domestic VCS
'~c.~:~~~2~~~t
shown in the chart?
&