Atari 2600

2600A Paddle Lines Test
4
7
I
Put snorting
?lugs in. Put
VCS into
Diagnostic
Mauix mode.
I
A
-
No
I
& there con-
tinuity between
Check trace lines and
resistors for
opens
- Repair
the 3202 or 3203
m
P I
pin (see chart)
1 and the A20 l?
Check '2°2/3203 for RC
waveform (see Fig. 4-10).
k waveform present on
each of the pins shown
in chart?
on the failed line.
Dges RC waveform appear yes
on the appropriatt 3202
'
or 3203 Line? (See Chart)
4
Line now work?
.
I
Repair
A
-
Connection Chart
Repar open
trace between
Do paddle lines now Yes
I
A20 1 and 12021
work
OK?
1203.
Pin Pin Pin Cap
Player A201 3202 203 No.
1 40 5 - C215
2399- C216
3 38 - 5 CZ17
u 37 - 9 C218
1
No
I
Yes
-
~oes waveform appear at
each of the ~201 pi,,s
shown in the chart?
b