Atari 2600 Field Service Manual page 108

2600A Solid Colored Screen Troubleshooting (Continued)
I
Is
4-5v
p-p
@2
signal
Open t r a c e between pin
present on
A201 pin 26?
26 A201 and pin 39 A202.
t
Y e s
+
J
Is there
+5v
and ground
NO
Open on Line to +5v or
on a l l of A200, A201,
'
ground, or bad regulator.
A202, A203?
1
L
r
No
Reset
ready
Lines good?
Open or shorted l i n e .
Swapout
I
l i A Z 0 0
I
Does unit
operate proper fy
?
I
yes
pg. 4-45
Repair
r
260012600A Domestic
V C S