Atari 2600 Field Service Manual page 53

Black or Solid Colored Screen Troubleshooting (Continued)
a
I
I s 4-5v p-p
d
.
No
Open trace
d2 signal
I
between
pin 26
present on.
A201 and pin 39
pin
26 A201? A202.
L
b
Yes
I s there +5v and
No
ground
on
all of
Open on
line
I
I
AZOO, A201, A202, to +5
or
ground.
t
A203?
I
I
Reset and ready
lines good?
Open or shorted line.
t
Swapout
1) A200
2) A202
Does unit
operate
Pg*
4-45
properly?
Repair
n
Pg.
4-2
2600/2600A Domestic VCS