2-Port Model Testing; Equipment Requirements 3A-1; Testing With The Diagnostic Cartridge 3A-1; Overview Of Tests 3A-1 - Atari CX 5200 Field Service Manual

SECTION
3
A
2-PORT
MODEL
5200
TESTING
EQUIPMENT REQUIREMENTS
You require seven basic pieces of equipment
in
order
to
analyze failures
in
the
Model
5200
2-port.
These items
include:
•
15
MHz
oscilloscope
•
Diagnostic Cartridge
(version
1.1)
•
5200 Port Board (Loop Back
Board)
•
CX5200
Field
Service Manual
•
Color T.V.
set
(properly adjusted)
•
Volt-ohm meter
•
Known-good
5200 controller
TESTING WITH
THE
DIAGNOSTIC
CARTRIDGE
(VERSION
1.1)
All
of
the
tests
are
reviewed
in this
section.
If
a test failure
occurs, enter the
diagnostic flowchart
where
indicated
and continue troubleshooting.
OVERVIEW
OF
TESTS
The
Diagnostic Cartridge (Version
1.1)
contains a variety
of test
routines
to assist
you
in
identifying
the source
of
problems
in
the 5200.
The test cartridge
is
used
in
conjunction with the equipment
listed
at the beginning
of this
section.
The
tests
available
in
the cartridge
are:
•
Color Bar
•
Gray Bar
•
Any Video
•
Verify
OS
ROM
•
Tone
•
RAM
•
Pokey
Adjust
INITIALIZATION
To
prepare the
5200
for testing,
perform
the following steps
in
the order
given:
•
Connect
the
switchbox
to the
VHF
terminal(s) on the
back
of
the T.V.
set.
•
Plug the power adaptor
into
the console.
•
Plug
the
RF
cable
from
the
console
into
the opening
on
the
switchbox
marked
GAME.
Be
sure the select
switch on the switchbox
is
set to
the
GAME/COMPUTER
position.
CX5200
Field
Service
Manual 3A-1
Changed
by
ECN
#0036
6/21/83