Atari 2600

2600A Bad Video Troubleshooting (Loss of Sync.)
(Revisions 1-1 3)
R F module tuned to Can R F module be
61.25 MHz? (Channel 3) properly tuned? Replace R F module
a
I
3.5-5VP-Psignal Yesp
J
Rep lace
n
I
2600/2600A Domestic VCS
Yes
Defective R217 or
bad ,4201.
on A201 side of R217.
v'
a
Good video
Yes
I
Yes
1
Tune R F module
No
Defective
R22 1
I
I
b