Atari 800

Table
5-1
CLOCK
CIRCUIT
PIN NUMBER
BOARD
CPU
FREQUENCY
1-789
SCOPE CHART #
21 of
JlOl
1
22 of
JlOl
CPU
1.739
2
3 of Z302
CPU 1,789
2
9
of Z302 CPU 1.789
1
10
of
Z302
CPU 1.789
2*
13 of
2302
CPU 1.789
3
37
of
A303
CPU
1.140
4
6
of Z301
CPU
1.789
3
34
of
A302
CPU
1.789
3
35 of A302
CPU 3.579
5
29
of A301
CPU 3.579
5
23
of A301
CPU 3-579
6
Collector of
Q102 300 Main
Board 3.579
6
Collector
of
Q104 400
Main Board 3.579
6
7
of AlOl
400/300 Main
Boaard 1.789
1
25 of A102
400/300 Main
Board 1,789
1
*
Use
Scope
Waveform
Legend
on next
page
to see
illustration
of waveform.
ATARI
Home
Computer
5-36