Atari 2600 Field Service Manual

2600A FAILURES
LOGIC F.ULURES (2600A)
DIAGNOSTIC
FLOWCHART
POSSIBLE CAUSE ENTRY POINT
SYMPTOM
Solid colored
screen
A200, A202, A20 1, I, pg. 6-10
X200, 4200,
RF Module
Vertical lines
A200, A201, A202, I, pg. 6-10
3200, open or
shorted
Address or
Data
line
VIDEO FAILURES (2600A)
DIAGNOSTIC
FLOWCHART
ENTRY POINT
POSSIBLE CAUSE
SYMPTOM
Snowy screen
A203,
5201,
RF Vodule, L205
K, pg. 6-12
K, pg. 6-12
M, pg. 6-14
RF Module, RF Cable
Weak picture
Vrong Gray Bars
Revisions 1
-1 3
N, pg. 6-15
Wrong Gray Bars
Revision 14
C, pg. 6-4
Cl, pg. 6-5
Warped picture
Revisions 1-13
Warped picture
Revision 14
.. 2600j2600A 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