Atari 800

400 COLOR
BAR
TROUBLESHOOTING
STAR
Swap-out
A301
and
A302.
on CPU
Board
Oo«9
screen look
like Figure 3-4
NO
Swap
CPU
Board
Does
screen look
Uke Figure
3-1
NO
Swap-out
Alll,
Q107
on
Motherboard
Does
screen
look
like
Figure 3-4
YES
Go to
TIA, Page
5-13
YES
Trace
color
circuitry
on CPU
Board.
Make
cetain
to
check
color
delay
circuit
and
R3Q9
YES
Go
to
TIA.
Page 5-13
NO
Go
Co next
page
ATARI
Home
Computer
5-10