SECTION
3A
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:
a
15
MHz
oscilloscope
a
Diagnostic Cartridge (version 1.1)
5200 Port Board (Loop Back Board)
0
CX5200
Field Service Manual
0
Color T.V. set (properly adjusted)
Volt-ohmmeter
0
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 flow chart 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:
a
Color Bar
0
Gray Bar
Any Video
0
Verify
OS
ROM
a
Tone
0
RAM
0
Pokey Adjust
INITIALIZATION
To prepare the 5200 for testing, perform the following steps in the order given:
a
Connect the switchbox to the
VHF
terminah) on the back of the
T.V.
set.
Plug the power adaptor into the console.
0
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
Changed
by
ECN
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