Atari 2600 Field Service Manual

Defective Switch Troubleshooting Procedure
With inqxrative
switcb ,in position
(open). u +Y: prnmt
at 3201 pin for that
switch?(See Chart)
bdvnotwpresent
at
the RAM pin
for that switch?
(see chart)
Yes
h there an open - Repair open trace. - Does switch
Yes
No
ktareen 1201 and Yes now chnge
RAM pin? ~rm
on screen?
b
No I
b
Yes
fhes ~witCfi now work? I
i
Pg. 4-7
and White
Lait Difficulty
Right Difficulty
kkt
Rest t
CONNECflON CHART
2600/2600A Domestic VC

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