Atari 2600 Field Service Manual

blatr ix Test Procedure
I
Initialize switches,
the? push "left"
difficuity swltCh
down.
I
Does screen
match Figure 4-6?
Put in shorting
plugs.
Does screen
match Figure 4-7?
Pg. 4-23
Push down
"Game Select"
switch (5 106).
..
I
Did lower middle
block on screen
turn bia& in center?
"Reset"
switch (SlOS)
Does lo wet middle
block turn black on
left and right ends?
Yes
Pg. 4-7
Pg. 4-24
2600/2600A Domestic VCS

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