Atari 2600 Field Service Manual

Audio Test Procedure (Continued)
Are the two
I
patterns in
Figure 4-9
alternating on
the screen?
Pg. 4-28
I Yes Pn. 4-24
Do the patterns
alternate with
the tones?
1 yes I
Are both colors
and tones con-
sisten t each
cycle?
I Yes
1
-
Put switches
back
to initialized
positions.
b
VCS will go
through om last
cycle before changing
to
color bar test.
Pg. 4-30
A J
2600/2600A Domestic VCS
Changed per
ECN #0021
1/29/83
b
I
Are patterns
now correct?
(As in Figure 4-9)
No
Swapout
I) A201
2) A200
3) A202
I

Atari 2600 Specifications

General

Manufacturer	Atari, Inc.
Release Date	September 11, 1977
CPU	MOS Technology 6507
CPU Speed	1.19 MHz
RAM	128 bytes
Graphics	Television Interface Adaptor (TIA)
Media	ROM cartridge
Successor	Atari 5200
Colors	128
Sound	2 channels
ROM	4 KB
Controller Input	Joystick