COPYRIGHT
©
1983
BY
ATARI, INC.
ALL RIGHTS
RESERVED.
part
No
electronic
retrieval
a
permission from ATARI, Inc.
of this
publication may be reproduced by
or
process,
system,
the
in
transmitted,
form of a
otherwise copied for public or private
or
any mechanical, photographic,
phonographic recording, nor
may it
be stored
without
use,
or
in
Published By:
ATARI, INC.
1265 Borregas Avenue
P.O.
Sunnyvale, California
Box
427
940S6
ATARI,
INC.
Consumer Product Service
845 W. Maude Avenue
A.
Sunnyvale, CA 94041
ATARI
IA
m?iSSo
DESCRIPTION OF CHANGE:
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003ft
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DATE
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SECTION 3A, 2-PORT MODEL
SECTION
SECTION
SECTION
cover.
the
Table of
the
Introduction, page vi.
the
pages 1-1, 1-3,
3-1.
folded, oversize 2-PORT 5200 Schematics and Silkscreen,
3.
4-1.
5-1.
page
SECTION 6
Contents, pages Iii
1-7.
SECTION
4A, 2-PORT
2-PORT 5200 SYMPTOM CHECKLIST,
5A,
with pages
2.
5200
DIAGNOSTIC FLOWCHART,
6-1
and
5200
through
v.
TESTING,
6-13.
pages
pages 3A-1, through
pages
page
4A-1 through
5A-1.
2-19
3A-9,
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MATERIALS MGR
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•
ATARI
ADVANCED VIDEO ENTERTAINMENT SYSTEM
MODEL 520
FIELD SERVICE MANUAL
0™
Atari believes
and much
otherwise,
or
material. Information contained
advise
to
that the
care
has
shall
of such changes and/or
information described in
been
taken in its
be
accepted for any consequences
this
preparation. However,
herein
additions.
subject
is
manual is
arising
to change.
accurate
responsibility, financial
no
and reliable,
out of the use of this
Revisions
may
be
issued
Correspondence
Support, Consumer
California 94086.
regarding this document should be forwarded
Product
Service,
Atari
Incorporated,
Manager of Technical
to
1272
Borregas,
Sunnyvale,
TABLE OF CONTENTS
Section
1
2
3
Title
Page
INTRODUCTION vii
THEORY
OPERATION
OF
Overview
Model
5200 Console
Four-Port Universal PCB differences
Two-Port Universal PCB differences
Outer Case
RF Shield
1-1
1-1
1-1
1-1
1-2
1-3
1-4
PC Board 1
-
Microprocessor Chip
MPU
Alphanumeric Television Interface
Controller (ANTIC)
Graphic
Pot Keyboard Integrated
Television Interface Adaptor (GTIA)
Circuit
(POKEY)
Switchbox 1
Game Controller
SILKSCREENS AND
4-PORT MODEL
Equipment
Testing with
Cartridge (Version
Overview of Tests
Initialization
Power-up
Solid (Black) Colored Screen or
Vertically
Screen
Snowy Screen
Warped-Ragged Picture
Color
Bar Test
Gray Bar Test
Any Video Screen
Pokey Adjust 3-7
Error Summary
SCHEMATICS
TESTING
5200
Requirements
the Diagnostic
1.1)
Lined
Screen
1-4
1-5
1-6
1-6
1-8
2-1
3-1
3-1
3-1
3-1
3-1
3-3
3-3
RAM Test 3-10
Verify
Port Test
Tone Test 3-10
ROM
-4
-7
3-4
3-4
3-4
3-5
3-6
3-8
3-10
3-10
TABLE OF CONTENTS
(Continued)
Section
3 A
4
Title
2-PORT
MODEL 5200
Equipment
Testing
(Version
with the
1.1)
Overview of
Initialization
Requirements
Tests
TESTING
Diagnostic Cartridge
Power-Up Screen
Solid
Colored
Vertically Lined Screen
(Black) Screen
or
Snowy Screen 3A-3
Warped-Ragged Picture 3A-3
Color
Gray
Bar Test 3A-4
Bar Test
Any Video Screen
Verify OS ROM 3A-7
Tone Test 3A-7
POKEY (Port) Test
RAM Test 3A-8
POKEY Adjust Test
POKEY Softfire Test
4-PORT
DIAGNOSTIC FLOWCHART 4-1
5200
Page
3A-1
3A-1
3A-1
3A-1
3A-1
3A-2
3A-3
A-5
3
3A-6
A-8
3
3A-9
3A-10
Overview
The Swap-out Procedure
Replace in Order
ATARI
4
A
2-PORT
Repair
5200
Hotline
DIAGNOSTIC FLOWCHART 4A-1
Swapout Procedure
Replace
In Order
4-1
4-1
4-1
4-1
4A-1
4A-1
ATARI Repair Hotline 4A-1
5
A
5
6
4-PORT 5200 SYMPTOM CHECKLIST
2-PORT
SYMPTOM CHECKLIST
5200
GAME CONTROLLERS
Overview
Joystick
Key Pad
Fire Buttons
Select Buttons
5-1
5A-1
6-1
6-1
6-2
6-2
6-2
6-2
TABLE OF CONTENTS
Section
Controller Testing
Controller Testing without
Failures
POT Arm Alignment Procedure
Controller Disassembly/Assembly
CX52 Game Controller
7 CX53
8
9
PARTS LIST 8-1
SERVICE BULLETINS 9-1
Figure
1-1
1-2
Model 5200 Console
Channel
Development
1-3 MPU Pin Assignments 1-4
1-4 ANTIC
1-5
1-6 POKEY Pin Assignments
GTIA Pin Assignments
Trakball
2-3 Switch
Pin
Title Page
Model 5200 Console
a
Schematic 6-13
LIST
Title Page
ILLUSTRATIONS
OF
Future
and
Access
Assignments
6-3
6-5
6-6
6-8
6-10
7-1
1-2
1-3
1-5
1-6
1-7
2-1
2-2A
5200 Motherboard
5200 Motherboard Schematic
(A)
2-2B 5200 Motherboard Schematic (B)
2-2C
2-3
2-4
2-4
2-4
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
5200 Motherboard Schematic
4
-Port Silkscreen
4
-Port Schematic
4-Port Schematic
4-Port Schematic
4-Port Schematic
Trakball Silkscreen 2-15
Trakball
Keypad Schematic
(1 of 4)
(2 of 4)
(3 of 4)
(4 of 4)
(C)
Trakball Schematic 2-17
5200 2-Port Schematic
5200 2-Port Schematic
5200 2-Port Schematic
5200 2-Port Schematic
5200 2-Port Schematic
(1 of 5)
(2 of 5)
(3 of 5)
(4 of 5)
(5 of 5)
5200 2-Port Silkscreen
2-3
2-4
2-4A
2-4B
2-5
2-7
2-9
2-11
2-13
2-15
2-19
2-21
2-23
2-25
2-27
2-29
TABLE OF CONTENTS
LIST OF ILLUSTRATIONS
|
SEEKS
mu
SESESIEEE
Title
Color
Gray
Any
Bars
Screen 3-5
Bar Screen 3-6
Video Screen 3-7
Page
Pokey Adjust Test Screen 3-8
Error Summary 3-8
Color
Gray
Any Video Test Screen
POKEY
CX52 Game
Joystick Positions 1
Cable
Pot & Arm Assembly 6-8
Controller Top
Select Switch Bezel Removal 6-10
Controller Knob
Pot Arm Positions
CX52 Game
Top Cover
Trakball Block
Bars Screen
Bar Screen
RAM Test Screen
Adjust
Connector
Bottom
Diagonal
Cue
Cover Assembly
Ball Support 7-27
Test Screen
Controller
2 6-3
<5c
Pins
(End
(Underside)
Removal 6-11
Assembly
for
Controller Schematic
Assembly
Diagram
or Circular Motion
View) 6-6
3A-4
3A-5
3A-6
3A-9
3A-9
6-1
6-9
6-11
6-13
7-2
7-3
7-6
7-8
Top Cover (Underside) 7-28
PC Board
Main
7-29
Table
3-1
6-1
7-1 Keyboard Test
Title
Diagnostic Error Codes
Game
Controller
LIST
OF
Continuity Check
Display
TABLES
Page
3-9
6-7
7-7
INTRODUCTION
The Atari Advanced Video
reference
This Field Service Manual
guide for you, the
THEORY OF OPERATION
•
its basic
SILKSCREENS
•
the
4-PORT 5200 TESTING
•
4-Port
2-PORT 5200 TESTING
•
2-Port Model
4-PORT 5200 DIAGNOSTIC FLOWCHART
•
Port Model
2-PORT 5200 DIAGNOSTIC FLOWCHART
•
Port Model 5200.
4-PORT 5200 SYMPTOM CHECKLIST
•
experienced
problems.
assemblies look
Model
5200
Model 5200
5200.
5200
technician arrive at a rapid diagnosis of
Entertainment System
service
organized
is
technician.
twelve
in
-
Overview of how the
like.
AND SCHEMATICS
printed
problems.
problems.
circuit
-
-
boards.
Review of Diagnostic
Review of Diagnostic
(Model
sections:
5200)
Model
-
Electrical drawings
Tests available
Tests available
-
Aids for
-
Aids
-
Failure information to
Field Service Manual
works
5200
and
troubleshooting
troubleshooting
for
layouts of all of
and
for diagnosing
for diagnosing
assist
4-Port Model
what
the
the
is a
4-
2-
the
5200
2-PORT 5200 SYMPTOM CHECKLIST
•
experienced technician arrive at a rapid diagnosis of
problems.
GAME CONTROLLERS
•
electrical
TRAKBALL CONTROLLER
•
electrical
PARTS LIST
•
models.
SERVICE BULLETINS
•
Upgrade Bulletins
manual
This
technician.
for
technicians
(Sections 5 and
The
-
-
Overview of
Failure information
2-Port Model
hand
controller
to assist the
construction
schematics and recommended test and repair procedures.
-
Overview of
schematics and recommended test and repair
-
Detailed
and
is designed for use by both the
Diagnostic Flowcharts (Sections 4 and 4 A) provide detailed procedures
not
completely familiar with
5A) provide
a
breakdown
-
Section to
Tech Tips.
rapid reference
all
of
be
experienced
the 5200
for the
parts used in the
used to
more experienced
trakbail
models.
construction
procedures.
hold Field
inexperienced
and
4-Port
and
Change
The Symptom Checklists
technician.
5200
with
with
2-Port
Orders,
service
Overview
SECTION
1
THEORY OF OPERATION
The ATARI Advanced Video
Entertainment System
microcomputer. It receives input from the game
(ROM) cartridges and other peripherals, and displays this input on a
maximum
of four
The Model
following paragraphs provide a general discussion of each
players
5200 is composed of the
may play at one time.
console, switchbox and game controllers.
component parts. For a detailed discussion of the Game
(Model
controllers,
Controller
5200) is an
of
advanced
Read-Only-Memory
T.V.
screen. A
The
these items and their
SECTION
see
6.
Model 5200 CONSOLE
The Model 5200 console
board
and its
RF
Shield.
is composed of an outer plastic
Figure 1-1 shows
the
console
There are currently three different PC Boards being
which
case
and its parts.
used
in Model 5200 consoles.
houses the
PC
Some models contain the original 4-port PC Board, number CA01 8087. Other consoles
contain
4-port universal PC Board, number CA020108. A third PC
a
Board
with only
two player ports, number CA021374, is also available. Unless otherwise specified, the
references in this manual pertain to
specific differences of the 4-port universal PCB and the 2-port universal PCB are
called
Four-Port Universal
External
out below.
PCB
differences:
original 4-port PCB, number CA018087. The
the
The ATARI serial
designator. For example:
Internal
The chip designators
1)
instead of U.
Two 74LS244 ICs
2)
Two 74LS244 ICs
3)
number on the bottom of the unit
74LS51 (A15).
Provisional
4)
accommodate the
CITE CODE
have been
(U4 and U15)
(U14 and U28)
circuitry for
VCS^M
DATE
A T
2 1 3
|
4-PORT
DESIGNATOR
changed.
were
removed from the
were replaced with
future expansion
cartridge adaptor.
will
have a
All chips are
+
as its third
designated A
PC Board.
a 74LS125 (A14) and a
has been added in order to
Two-Port Universal
PCB differences:
All of the 4-port universal
1)
2-port universal PCB.
the
Ports
2)
3)
4)
5)
3 and 4 and their associated discrete components
ICs
A12 and
The
automatic
the RF cable
A13
has
The power adaptor plugs
plugging into the
board
have been
switchbox
removed.
has been
been replaced with
directly into the
switchbox.
differences listed
replaced
the
with a manual switchbox and
standard RF cable.
rear
of the console instead of
above
have been
are included on
removed.
Figure
I
1-1.
Model 5200 Console (4-PORT)
Outer
Case
The outer
Phillips-head
five
At the
In the
rear
a) an
b) a
base is a
case consists of a bottom and a top
screws.
bottom
the
of
opening for
plastic
access to the
removable door which allows
cable wrap
post for
cover (Figure 1-2)
channel
access
RF cable storage.
plastic
cover which are
is:
2-3
switch
for future development.
held
together by
Channel
2-3
The
top plastic
1)
2)
3)
4)
RF
Shield
aluminum shield covers
An
interference on the
Future Development Access
1-2.
Figure
Channel 2-3 Switch
Future
Development
cover provides:
openings
the power switch
the
at the
power
front for
/OFF switch
ON
cover
four player ports
the
a storage area at the rear for two
this area comes
T.V.
screen.
off as a
the
separate piece when the
PC Board
and
game
controllers.
prevents
and
Access
The
hinged cover for
top cover is
PC Board from generating
the
disassembled.
Board
PC
The console you are servicing
contain either the original PC Board Number
may
CA018087 or the newer PC Boards Numbers CA020108
this manual for an explanation
The PC Board
•
• a
• an
• various discrete
The
major chips on the
Microprocessor
The
consists of:
28 Integrated
Circuit
on
cartridge
Chips on
PC Board
RF
module
socket
PC Board
Chip
microprocessor
Circuit
Number
-
(MPU)
based on information from the ROM cartridge and the Random
Figure
1-3
ROY
shows
the pin
h
I5q
the three board's differences.
of
Chips
PC Board Number CAQ18087; 26 Integrated
on
PC Board Number CA020108; 24 Integrated
CA021374.
components
are:
MPU
is the brain
assignments
of
the 5200. It
for the
MPU.
39
38
37
36
CAQ21374. See Page
or
makes
the major decisions
Access Memory.
RES
h
SO
*0 UN)
B/W
Circuit
1-1
Chips
of
YNC
VCC
10
12 29
13 28
1»
13
17
18
19
20
Figure 1-3.
6502
MPU Pin Assignments
33
O
3#
3
33
3
32
3
31
30
3
3
27
3
26
3
23
3
2*
3
23
3
22
3
21
3
HALT
B/W
>
01
02
03
0»
03
06
07
A16
A14
A13
A12
vss
Alphanumeric
Televison Interface
Controller
(ANTIC)
The
primary function of the Alphanumeric
chip is to
video
Figure
screen.
1-4
GROUND
GTIA DATA
GT1A DATA
Pen
Light
GTIA DATA
Hot Connected
Interrupt
Refresh
HALT
Address Bus
Address Bus
Address Bus
Address Bus
Read/Write
Ready
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Output
get data from
shows
the pin assignments for the
VS5
AN0
ANt
LF
AN2
RNM1
NM1
REF—
HALT
A3
A2
A1
A0
R/'V
RDY
A10
A12
A13
A14
A15
Television Interface
memory, independent
ANTIC.
1
2 39
3
4
5
6 35
7
8 33
9
10 ANTIC
11
12
13
14 27
15
16
17
18
19
20
of
the processor,
40
38
37
36
34
32
31
30
29
28
26
25
24
23
22
21
(ANTIC)
D4
Controller
for
display on the
Data Bus
D5 Data Bus
D6 Data Bus
D7 Data Bus
RE.S
Reset
FPh# Fast Phase 0 Clock
Ph#
Phase 0 Clock
D3 Data Bus
D2
D1 Data Bus
Dd
Ph2 Phase
Data Bus
Data Bus
2
Clock
A4 Address Bus
A
A
5
6
Address Bus
Address Bus
A7 Address Bus
A8 Address Bus
A9 Address Bus
All
VCC
Address Bus
5V
Power
Figure 1-4.
ANTIC Pin
Assignments
Graphic
Television Interface Adaptor (GTIA)
The Graphic
memory via
registers. Figure
Televison Interface
the
Address Bus A1
Address Bus
Ground
A)3
vss
Data Bus D3
Data Bus
Bus
Data
Data Bus
Trigger
Trigger
Trigger
Trigger
Port
0
1
2
3
Select
Port Select
+CAV Control
Not Used
D2
D1
D
Tfi
Tl
T2
T3
S
SI
S2
S3
Not Connected
Color
Alphanum.
Alphanum. Data
Alphanum. Data 2
Delay
Data
DEL
0
A
AN1
1
AN2
Adaptor
ANTIC
1-5
$
$
NO
DMA process.
shows the pin assignments
1
2 39
3
4 37
5
6
7
8
9 32
10
11
12
13
14 27
15 26
16
17
18 23
19
20 21
This
GTIA
(GTIA)
data is
for the GTIA.
chip
40
38
36
35
34
33
31
30
29
28
25
24
22
retrieves
routed
A2
A3
A4
D4
graphics data from
to the
GTIA
Address Bus
Address Bus
Address Bus
Data Bus
D5 Data Bus
D6
Data Bus
D7 Data Bus
R/W
CS1
LUM 0
J02
P^O
OSC
VCC
halt
CSYNC
LUM
LUM
LUM
Read/Write
Chip
Luminance
Phase
Clock
Oscillator Input
Power
HALT
Output
3
Luminance
•
2
Luminance 2 Output
1
Luminance
COL Color
graphics
Select
Input
2
Out
Sync
1
Output
o
3
Output
Output
1
Figure 1-5. GTIA Pin Assignments
POT Keyboard Integrated Circuit (POKEY
Pot Keyboard Integrated
The
game ports and the
channels,
the pin
each with its own
assignments of
Circuit
microprocessor.
frequency, noise,
POKEY.
the
(POKEY)
It also
)
chip provides the
contains
volume control.
and
interface between
semi-independent audio
four
Figure
1-6
the
shows
Ground
VSS
Data Bus D3
Data
Bus
D4 3 38
Data Bus D5
Data Bus
Bus D7 6 35
Data
D6 5 36
Phase 2 Clock 02 7
Pot Scan
Pot Scan
Pot Scan
Pot Scan
Pot Scan
Pot Scan
Pot Scan
Pot Scan PI
Softfire
V Power
5
Not Connected
P6 8
P7
P4
P5
P2
P3
P0
KR2
vcc
K5
Keyboard Scan K4
Keyboard Scan
K3
1
2
40
39 D1
D2 Data Bus
DO
4 37
AUDIO
A0 Address Bus
A1
34 A2 Address Bus
33
9
10 POKEY 31
11
12
13
14 27 OCLK
15 26 BCLK
16 25 KR1
17 24 SID
18 23 K0
19
20
32 R/W
30 c5o ChiD Select
29 IRQ
28 SOD
22 Kl Keyboard Scan
21
A3
CSl
K2 Keyboard Scan
Data Bus
Data Bus
Audio Out
Address Bus
Address Bus
Read/Write Control
Chip Select
InterruDt Request
Serial Output Data
Serial Output Clock
Bidirectional Clock
Keyboard Bead
Serial Input Data
Not Connected
SWITCHBOX
switchbox
A
switchbox
that is used
manufactured by
power for the Model
1)
two Select Switch
2)
NORMAL
television and the
STANDBY
CX5200
Field Service
Figure
is connected and mounted to the
with
Atari
and from the
-
Allows
-
Enables
Manual
1-6.
POKEY Pin Assignments
4-Port Models
the
2-Port Model 5200. These differences include:
5200
supplied
functions.
the
game
television viewing
The two
Model 5200
when the
1-7
through
to
Model
back of
is different from
the
functions
the television set.
other switchboxes
switchbox
are:
automatically switch between
ON/OFF
5200
while
the Model
switch is pressed.
5200
is turned
Changed
The
the
on.
by
GAME CONTROLLER
The game
12
-key Keypad, two
game
controller supplied
controller
separate
is discussed in
with the Model
Fire Buttons
detail
in
5200
on each side,
Section
6.
SUMMARY
The Model
Controllers, Read-Only-Memory (ROM) cartridges,
5200
PC Board is housed
interaction
Alphanumeric Television
the
Interface
The console, switchbox,
is addressed in the remainder of this manual.
between
Adaptor (GTIA),
is an
within
the game
advanced
an outer case
and the
microcomputer
and
and
the player.
Interface Controller
POT Keyboard
and Game Controllers
contains four major chips
make
is composed of an analog joystick, a
and
three
which receives
and other peripherals.
They
are: the
(ANTIC),
Integrated Circuit
up the
Select Buttons. The
input from the Game
The
console
which
allow for
Microprocessor (MPU),
the Graphic
Television
(POKEY).
Model 5200 System which
SECTION 2
SILKSCREENS AND SCHEMATICS
the following
On
5200.
of
understanding of all Model
Minor variations in design may be
the
unit,
pages are
but these
representative silkscreens and
encountered depending
schematics for
on the production date
the Model
schematics provide all details required for an in-depth
5200
units.
Make
pen
and ink
corrections
to schematics on pages
2-4
and
2-4B
as directed
below.
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:
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NOTES.
UNLESS
OTHERWISE
SPECIFIED:
SWTTCHED
pin game
15
cable
connector
Jt
Note:
sockets or
If
replaced,
are
shaded
in
PC Board as
to
components
trim leads
areas
as
possible.
2-5.
close
Figure
2-6. Keypad Schematic
SWITCHED
UNREG
4
of
5
Figure
2-11.
5200
2-PORT
18
SECTION 3
4-PORT MODEL 5200 TESTING
EQUIPMENT
You require six
5200. These
•
15
Diagnostic Cartridge (version
•
Model
•
• CX5200
• color
voltmeter
•
REQUIREMENTS
basic pieces of equipment
items include:
MHz
oscilloscope
1.1)
5200 Port Board (Loop Back Board)
Field Service Manual
T.V.
set (properly adjusted)
in
order
to analyze
TESTING WITH THE DIAGNOSTIC CARTRIDGE (VERSION
All tests are
given. If a failure occurs, go to
troubleshooting.
reviewed
in this section. If
applicable,
the
flowchart indicated and continue
a
OVERVIEW OF TESTS
The Diagnostic
Cartridge
you in identifying the source of problems in the
used in conjunction with the
tests available in the
• Color
• Gray
• Any
Pokey
•
RAM
•
Verify
•
• Port
Tone
•
Bar
Bar
V
ideo
Adjust
OS
ROM
(Version
cartridge
1.1) contains a
equipment
are:
listed at
variety
Model
the
5200.
beginning of this section.
failures
1.1)
Flowchart
of test routines to assist
The
test cartridge is
in
Entry
the Model
Point
The
is
INITIALIZATION
To
prepare the
given:
• Connect the
Plug the power adaptor into
•
Plug
•
the
marked Game.
NORMAL position.
Plug
Insert
the Model
the
on
•
•
• Turn
Model 5200
switchbox
RF
cable from the console into the opening on the switchbox
5200 Port Board
Diagnostic Cartridge (Version
the T.V.
for testing, perform the following steps in the order
to the
Be
sure the select switch on the switchbox is set to the
Set and the
VHF terminal(s)
the opening on the
into the player ports.
Model 5200.
1.1)
on the
back
of the
T.V.
switchbox marked Power.
Set.
The
Model 5200 tests are run using the
automatically cycles through
the Port
select
Board,
plug a game controller into Port
any of the tests
manually
all
Port Board
of the tests. If a test fails: turn the unit off,
and turn the unit back on. You can
1
,
by pressing the proper
(Loop Back Board) which
key followed
by the start key.
remove
NOTE: The Diagnostic Cartridge will cycle automatically only
is inserted before
Press
*
the
l=Any
2=Color
3=Gray
or
Video
Bars
Bars
# key
followed
4=Port Test
5=Pokey Adjust
6=Tone Test
Options 9 and
The following
If a test fails, go to the
troubleshooting.
0
are not used at this time.
pages
show
unit is turned
the
on.
by the start key to print this menu on the screen.
7=Ram Test
8=Verify
9=Display Options
0=Examine
the tests as they appear
Flowchart
OS
ROM
Entry
Point
with
the Port Board
indicated for that test and begin
the Port Board
if
plugged
in.
POWER-UP SCREEN
The Power-up
screen appears in a few seconds.
It displays
workings of the unit. This screen shows:
The
•
•
After
the initial
One of the
•
•
•
Solid Colored (Black) Screen or Vertically Lined Screen
If a solid colored
catastrophic failure.
put up a simple
Diagnostic
type of
for that unit. If
The
rev of
power-up,
following
Solid
Colored
Snowy
Screen
WARPED
display.
Flowchart
TIA
in the unit.
PAL
appears, replace
ROM
in the unit. (Not important at this time.)
this screen does not
indicates a failure.
(Black)
-
Ragged Picture
(Black)
or
This means
Entry
Screen or
vertically
Point: Pg.
NTSC
lined screen appears, the unit is suffering
that the unit is not functioning
4-2.
appears if the
with
automatically
Vertically
information about the
GTIA
GTIA
a
Lined Screen
from your kit.
appear again.
well
inner
is the proper one
enough to
even
a
Snowy
If, when
Screen
turned on the unit displays no modulation on the screen, the failure is
probably in the power circuitry. However, first
Diagnostic
Check
•
position.
• Check
Flowchart
that the select
power
the
Entry
adaptor using a standard
Point: Pg.
switch
4-9.
on the
check
switchbox
the following:
is set to the
voltmeter.
NORMAL
Warped
-
Ragged
Picture
In this
picture may
signal broadcast
that
the flowcharts.
Diagnostic
failure, the power-up
roll
or
the unit is not set on the
Flowchart
COLOR BAR TEST
Purpose:
•
operation.
Format:
•
screen should be steady and
reference
This
adjusted
within
being
by
entire span of each
color
order to catch any intermittent
changing
bent
left of the screen.
not functioning. Another possible
chip and associated
slide
down and to
by the GTIA
Entry
To
test the
A screen of
screen appears
the
probably
is
same
channel as the
Point: Pg. 4-13.
GTIA
horizontal
unchanging.
line runs across the screen about three bars from its
reference line is
the
so
bars
thinner
than
immediately above
one shade of each other.
able to make this adjustment and
bar
on the screen. Minor
bars are acceptable.
colors or
blanking
Leave
out.
to one
T.V.
set. Check this
bars displays
color
the bars around
and
Proper
operation of the unit is indicated
this test on
problems,
side with
A
below
a ragged edge.
This
means that the sync,
color
circuitry for correct
(see
gray or
the reference line are
by consistent
glitches
for
at
on the
least
such as a
before
Figure 3-1).
blue
horizontal
R8
it.
color
edges
ten seconds in
bar
momentarily
The
cause
going to
is
The
bottom.
should be
within the
of the
NOTE: This figure is a black and white representation of a color
television
screen.
REFERENCE
Diagnostic
Flowchart
GRAY BAR TEST
Purpose: To
from the
Format:
top to white at the bottom in
should be steady and unchanging.
their edges. A thin
bar. No
top
the test.
that there is no "flashing" of any color or shifting of the gray bars.
BAR
(black)
line
Bars
even
These
always
Screen
steps (see
lines may have minor glitches on
Figure 3-2). The
appears just
bar
are of no importance to
Figure 3-1 Color
Entry
GTIA
Eight
Point: Pg.
test the function of the luminescence lines (LMO
chip.
horizontal
4-14.
gray bars are displayed, going from black at the
white
should
color
bar and
This
appear anywhere on the screen.
below
test should be left on for at least ten seconds to ensure
the bottom (white)
over
The
LM1, LM2)
,
the top
areas
SAME
screen
(black)
above
COU3R
the
Figure
3-2.
Gray
Bar
Screen
Diagnostic
Flowchart
ANYVIDEO SCREEN
Purpose:
•
Format: The
•
bars. Half
wider.
left to right, the shade of color on the horizontal
the right of the bar,
Entry
Point: Pg. 4-16.
To
test the
screen
of the
vertical bars
A horizontal
video
should have
bar
two Vs should
generation of the
a
should
should appear across
be
GTIA
black background with
be narrow,
displayed,
and the other half much
the
right side up.
ANTIC
and
of
top
the screen.
bar
should change.
chips.
eight
vertical
From
On
NOTE: Figure 3-3
is a
black
white representation of
and
a colored screen.
If the Any
Video
POKEY ADJUST
Purpose: To
•
Format: Adjust
•
test
+
Figure
swapout
fails,
check the
R132 to make the
1. All other
3-3. Any Video Test
U3, U5.
value
of the pot line
value
values
should read between
Screen
for the
Port
in
controller ports.
HOR
1,
position read 112
100
and
124.
NOTE: Figure
may differ from those shown in Figure
3-4
shows a sample
Pokey
Adjust screen. The values on your screen
3-4.
HOR VERT
1 112
2 no 115
3 no 118
4 no no
3-4.
Figure
Diagnostic Flowchart Entry Point: (Refer
Pokey
ERROR SUMMARY
Errors
shown in
during the
Figure 3-5.
RAM, PORT,
verify OS ROM Test
and
107
Adjust Screen.
Table
to
3-1,
KB
0
0
0
0
Diagnostic Error
are displayed on the
Codes).
matrix
Table 3-1 shows
corresponds to the
(Max.
99)
Figure 3-5. Error Summary.
the defective component and/or the
Failure
Code
number
on the
Error
Summary.
flowchart
entry point
which
Table
3-1
lilure Code
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Diagnostic Error
Failure
-
RAM
RAM
RAM
RAM
RAM
RAM
RAM
RAM
Port
Port
Port
Port
Trigger
Trigger
Trigger
Trigger
Chip 1
-
Chip 2
-
Chip 3
-
Chip 4
-
Chip 5
-
Chip
-
Chip 7
-
Chip 8
-
1
Data
-
Data
2
-
Data-Keyboard
3
-
Data
4
0
1
2
3
-
U25
-
U24
-
U23
-
U22
-
U21
-
6
U20
-
U19
-
U18
-
Keyboard
-
Keyboard
-
Keyboard
Codes
Reference Page ii
Test, Pg. 3-10
RAM
Keyboard Troubleshooting
Pg.4-21
Trigger
shooting,
Line
Pg.
Trouble-
4-19
16
17
18 Soft Fire
19
20
21 Serial
22
23
24
25
Soft Fire
Soft Fire
Soft Fire 3
Serial Port 0
Port
Pot
Line 0
Pot Line
Pot Line 2
Pot Line
26 Pot Line 4
27 Pot Line
28
29
30 O.S.
Pot Line 6
Pot
Line 7
ROM
0
1
2
1
Softfire Troubleshooting
Pg. 4-20
Not
Used
Not
Used
Pot Line Troubleshooting
Pgs.
1
3
5
-
U8
Verify OS ROM, Pg. 3-10
4-17,
4-18
RAM TEST
Purpose: To
•
Format: This
•
is solid black. At the end of this time period, if the test has failed, a
Failure
defective. Swap
(Table 3-1). If
U16, U17, and U28 for
A14, A15, A16 and
No
Diagnostic Flowchart
VERIFY OS ROM
Purpose: To
•
Format: If error code 30 appears on the Error Summary (Figure 3-5) the
•
ROM
OS
Diagnostic Flowchart
No
test the 16K
test takes approximately 10 seconds during
RAM
chips for proper functioning.
which
the screen
Code number appears on the screen to signify which chip is
out the chip corresponding to the Diagnostic Error Code
the
problem,
For PCB
defective
swapout the chips U15,
#CA020108,
chip and restart the test.
swapout
Entry Point
test the OS
chip is
Entry
this does not solve the
PCB
//CA018087.
A17.
ROM
(U8) for proper functioning.
defective. Replace
Point
PORT TEST
Purpose: This
•
associated
Format: The
•
PORT
test is done internally with failures appearing on the Error
Summary (Figure 3-5).
Diagnostic Flowchart Entry Point: (Refer
checks
test
circuitry.
TONE TEST
•
• Format: The
Diagnostic Flowchart
CX5200 Field
Purpose: To
(Register
two
first
Service
check the audio generation section of the
screen prints at the
A
4,
2,1).
3,
tones may
Entry
series of eight tones
be
inaudible
Point: Pg. 4-27.
Manual
the functions of the
to
3-10
Table
bottom
but
you can hear the
Diagnostic
3-1,
which register
will
sound on each register.
POKEY, GTIA
Error Codes).
POKEY
speaker click.
(U7).
is
being tested
and
The
2-PORT MODEL 5200 TESTING
EQUIPMENT REQUIREMENTS
SECTION
A
3
require seven basic pieces
You
5200 2-port. These
•
•
•
• CX5200
•
•
•
TESTING
All of the tests
diagnostic
15 MHz oscilloscope
Diagnostic Cartridge
5200 Port Board (Loop Back Board)
Color T.V.
Volt-ohm meter
Known-good
WITH
flowchart where
items include:
Field Service
(properly
set
5200
THE DIAGNOSTIC CARTRIDGE (VERSION
are reviewed
OVERVIEW OF TESTS
The
Diagnostic Cartridge
in identifying the source of
conjunction
available
•
•
•
•
•
•
• Pokey Adjust
with
in the
Color
Gray
Any Video
Verify
Tone
RAM
the
cartridge are:
Bar
Bar
OS
(Version
equipment
ROM
equipment
of
(version 1.1)
in
Manual
adjusted)
controller
in this
indicated and continue
problems
section. If
1.1) contains a
in the 5200. The test
listed at the
order
to analyze
1.1)
a test failure occurs,
troubleshooting.
variety
beginning
of test
of this
failures
routines
cartridge
section. The
in the
to assist you
Model
enter
is used in
the
tests
INITIALIZATION
To
prepare the
•
Connect the
Plug
•
Plug
•
marked GAME.
GAME/COMPUTER
5200
for
the power
RF
the
testing,
switchbox
cable from the console into the opening on the
perform the following steps in the
to the
adaptor
Be
into the console.
sure the select
position.
VHF terminal(s)
switch
on the
on the
order given:
back
of the
switchbox
T.V.
set.
switchbox
is set to the
•
Plug
• Insert the Diagnostic Cartridge
Turn on the
•
a
game
controller into port 1 of the 5200.
T.V.
(Select Channel 2 or
(Version
1.1).
and the
3)
5200.
Press
*
the
l=Any
2=Color
3=Gray
or # key followed by the start key to display this menu on the screen.
Video
Bars
Bars
4=Port Test
5=Pokey
Adjust
7= Ram Test
8=Verify OS ROM
9= Display Options
0=Examine
6=Tone Test
Test
#4 and
To
run the tests press the proper
START. To
press the
The following
If a test indicates a failure, go to the
and begin
0
are not used.
escape a test (except
bottom
troubleshooting.
fire button.
pages
show
the tests as they appear with the
numerical key
#5),
POWER-UP SCREEN
The
power-up screen displays information
shows:
press any
Flowchart
about
on the
key. To
5200 controller
escape
#5,
Port Board plugged
Entry
the internal status of the unit. It
Point
indicated for that test
and then press
POKEY ADJUST,
in.
•
•
power-up
If at
•
•
•
Proceed
The
type of
NTSC
The
Solid Colored
appears. If
revision
this screen does not appear, one of the
TIA
in the unit. If the
PAL
appears, replace the
level
of the
(Black) Screen
ROM
GTIA
in the unit. (Not important at this time.)
following
Vertically Lined
or
Snowy Screen
Warped
to the description of that failure which follows.
-
Ragged Picture
is the proper one for the unit,
GTIA with
one from your
kit.
screens appears:
Screen
Solid Colored (Black) Screen or Vertically Lined Screen
If a solid
catastrophic
return
Diagnostic
Snowy
If the screen displays no modulation, the
However, first
Diagnostic
Warped
In this failure, the
picture may roll
signal
that the unit is not set on the same channel
the flowchart.
colored (Black) or
failure. This means
a simple display.
Flowchart
Entry
Screen
following:
that the
•
do the
Check
GAME/COMPUTER
Check that the
•
• Check the power
Flowchart
-
Ragged
broadcast
Entry
Picture
power-up screen
or
slide
by the
vertically lined screen
the
that
Point: Pg.
4A-2.
Select Switch
position.
T.V.
is set to Channel 2 or 3.
adaptor
Point: Pg.
using a standard
4A-10.
appears
down
and to the left of the screen.
GTIA
probably
is
appears,
unit is not functioning
failure
probably
is
on the
the unit is suffering a
in
switchbox
voltmeter.
bent
to one side
not functioning.
as
the
T.V.
set. Check this
with
This
Another possible
well
enough to
power
the
is set to the
ragged
a
even
circuitry.
edge.
The
means that the sync,
cause is
before
going to
Flowchart Entry Point: Pg. 4A-13.
If the
Diagnostic
Diagnostic
CX5200
will
unit
not select a test
Flowchart.
Flowchart
Field Service
Entry
Point: Pg. 4A-13.
Manual 3A-3
when
using a
known-good controller,
proceed to the
Changed
by
COLOR BAR TEST
Purpose:
•
operation.
Procedure: Press key
•
Format:
•
screen should be steady and unchanging. A gray or blue
reference
screen.
be adjusted so the
are within one shade of each other.
indicated by being able to make this adjustment and by consistent
within
To test the
A screen of horizontal color
line runs across the screen
This
the entire span of each bar on the screen. Minor glitches on the
edges of the color
seconds in order to catch any intermittent problems, such
momentarily changing colors or blanking out.
Diagnostic Flowchart Entry
NOTE:
This figure
is
a black and white representation of a color
GTIA
2
chip and associated color circuitry for correct
followed
by
START.
bars
two
displays (see
bars from the
Figure
bottom
reference line is thinner than the bars around it.
bars immediately above
bars
Point: Pg. 4A-14.
acceptable. Leave
are
Proper
below
and
the reference line
operation of the unit is
this test on
television
for
3A-1). The
horizontal
of the
R8
should
color
at least ten
as
a bar
screen.
Figure 3A-1.
Color
Bars
Screen
GRAY BAR TEST
Diagnostic
Purpose: To
•
LM3) from the
• Procedure: Press key
Format: Eight horizontal
•
top
to white at the
should
their edges. A
bar.
top (black)
the test. This test should be left on for at least ten seconds to ensure
that there is no flashing of any color or shifting of the gray
Flowchart
be
No
test the functioning of the luminescence lines (LM1, LM2,
GTIA
chip.
followed
3
gray
bottom
in
steady and unchanging.
thin white
color should appear anywhere on the screen.
bar
and below the
Entry
Point: Pg.
line
4A-16.
START.
by
bars
even
always
displayed,
are
steps (see
These
appears just
lines may
bottom (white)
going from
Figure
bar are of no importance to
3A-2).
have
minor glitches on
over
the top (black)
The
areas
bars.
black
The
above
at the
screen
the
Figure
3A-2. Gray
Bar Screen
ANY VIDEO SCREEN
Purpose:
•
Procedure: Press
•
Format: The
•
bars. Half
wider.
left to right the shade of color on the horizontal
the right of the bar
If the Any
Video
NOTE: Figure 3-3
To test the
of the
A
horizontal bar should appear across the top of the screen.
tests fails,
black
is a
video
key 1
screen
followed
should have
vertical
two V's
swapout A3
white
and
generation of the GTIA and
START.
by
black background with
a
should
bars
should
and
representation of a
be
A5,
and restart the test.
narrow and
be
displayed, right side up.
colored
ANTIC
chips.
eight
vertical
the other half much
bar
should change. On
screen.
From
Figure 3A-3. Any Video Test
Screen
VERIFY OS ROM
•
•
•
Flowchart
No
TONE TEST
•
•
•
Diagnostic
Purpose: To
test the OS
Procedure: Press key
Format: If
3-8)
the OS
restart the test.
Entry
Purpose: To check
error code
ROM
Point.
Procedure: Press
Format: The
followed
1
The
first
Repeat
for
Flowchart
screen prints at
START.
by
two
tones may be
registers
Entry
Point: Pg. 4A-17.
ROM
(A8) for proper
followed
8
30
appears on the Error Summary
chip is defective.
audio generation
the
key 6 followed
the bottom: Register
A
series
inaudible but
2,3,4.
functioning.
START.
by
(Figure
Replace
section of the
the
defective
POKEY
(A7).
by START.
to
^1
of
eight tones sounds on each register.
4)
?
you can hear the speaker click.
3-1,
pg.
chip and
Press key
POKEY (PORT) TEST
Purpose: To determine
•
operation of the
Procedure: Press key
•
Format: When
•
numbers and letters
KB
the
KEY
1
2 2
3 3
4
5
6 6
7 7
8
9 9
column:
KB
Readings
1
4
5
8
# D
0 0
*
E
START A
PAUSE B
RESET
C
any port line failures and confirm the correct
POKEY
chip.
followed by START.
5
you press the keys listed in the first column
in
the second column
NOTE: When using
Cartridge
KB Readings
should
to test the
appear on the screen in
1.1 Diagnostic
the
2-PORT
may appear to the
any of the four ports listed on the screen,
besides the port you are testing. They
must, however, appear to the right of the
port
valid.
you are
testing
for the test to be
below,
5200, the
right of
the
If the keys do not register cc
TROUBLESHOOTING,
Press
If it doesn't proceed to page 3A-9.
Press key
to the screen. Unplug the controller from
Repeat
the
page 4A-22.
bottom
5
fire button.
followed by START,
Step 2.
RAM TEST
Initialization for RAM Test
Purpose: To
•
A25).
Procedure: Press key 9 followed by START.
•
set the 5200 up for a
Then
press
key
Again press key 2 followed by
DISPLAY ERRORS CONTINUOUS TEST
RAM Test Procedure
Purpose: To
•
test the functioning
:orrectly
The POKEY ADJUST
followed
2
when
again bringing the
pressed, proceed to
Port
loop
test to fully check the
START.
by
START.
appears in the green band on the
of
the
16K RAM
KEYBOARD
screen
should disappear.
POKEY ADJUST
1 and insert it into
RAM
chips.
pattern
Port
2.
(A18-
Procedure: Press key
•
followed
7
START.
by
•
Format:
appears.
determine
Each
test
If
an error is listed on the screen, refer to
which
POKEY AD3UST TEST
lasts approximately
chip has
4.
failed.
(Max. 99)
Figure 3A-4. RAM Test
ten seconds.
Screen
The
screen illustrated
Table
3-1,
below
page 3-9, to
Purpose: To
•
Procedure:
•
test the
functioning.
Remove
1.
Turn
2.
Plug
3.
not plug into anything).
Adjust
The values
100 and
have
1
2 110
3 110
4 110
+CAV
circuit output to the controller for proper pot
PCB assembly
the
from its plastic housing.
on the unit and press key 5
in the loop
R132 to
124,
bearing
no
HOR
110
back board
make
VERT, 4 HOR and 4 VER
on 1
as illustrated
(note that connectors 2 and 3
value
the
below
on the test for the 2-port 5200.)
VERT
107 0
115 0
118
110
KB
0
0
followed by START.
Port
in
Figure 3A-5. (Ports
in
HOR
1,
should read
position 112
will
+1.
between
2 and
3
Figure
3A-5.
POKEY ADJUST Test Screen
If the unit cannot be adjusted or if
Entry Point: Pg. 4A-20.
POKEY SOFTF1RE TEST
values
are out of range,
proceed
to the
Flowchart
Connect the
•
Insert the controller into port 1
•
• Press
Press
•
A 5v
•
key 5
the top
p-p
oscilloscope
followed
fire button
to pin 16 of A7 (1
START.
by
(softfire).
square wave signal should appear. If it does not, proceed to the
SOFTFIRE TROUBLESHOOTING FLOWCHART,
Unplug the controller from port 1 and plug it into port
«
Repeat
•
the fourth and fifth steps for port 2.
v/division;10ms/div.).
4A-19.
page
2.
SECTION 4
4-PORT 5200 DIAGNOSTIC FLOWCHART
The Diagnostic Flowchart
troubleshooting
a question
condition. When that line terminates with a letter inside a circle, locate the letter
is asked, follow
on a different page and continue the
chance; it tells you
4-Port 5200. Follow
the
when
intended
is
the line
to perform a specific test and when to replace
be
to
easy to use
the prompts in the order
from
diagnosis. The flowchart leaves
the
box
best applies
that
and
primary
the
presented. When
aid
to your unit's
nothing to
when
components.
SWAPOUT PROCEDURE
At many places in the diagnostic flowchart, a
component, a chip, or a number
instruction means that you should replace the indicated components (one at a time)
with known-good components of the same type.
with the new,
problem being checked. If
the
chip in and
components. Once
determine which
to
known-good
swapout
the unit functions properly, reinstall the original IC's one by one
are
component(s) in place to see whether the swapout solved
the next.
actually defective.
of
swapout did
the
Repeat this
chips in a particular order. The
box
tells you to "swapout" a
The
unit should then
not fix the
problem, leave
procedure for the rest
"swapout"
be
tested
new
the
of
the
REPLACE IN ORDER
The
"replace in order" instruction means that you should replace the components
indicatedinthe order
obtained.
listed
until the result
called
out in
the previous block
is
-
F
Some
lines terminate
beginning
of the test sequence on page
N-Some lines
Atari Repair
Hotline.
terminate
with
an F inside a circle.
3-1.
with
an
Inside
(800)
N inside
Outside
(800)
(800)
a circle.
California
672-1466
California
538-1535
538-1536
When
this occurs, return to the
When
this occurs,
call
your
Black Screen
Troubleshooting
Black Screen
Troubleshooting
(Cont.)
been
changed
from
U to
A.
Black Screen
Troubleshooting (Cont.)
Slack Screen
Troubleshooting
(Cont.)
PCB CA020108, chip
designators have
been changed from U to A.
\5
A6
A8
A9
MO
A17
Mg
A19
A20
A21
A22
A23
A24
.A2J
A27
Black Screen
21
20
27
24
Troubleshooting
(Cont.)
A15
A26
Page
4-7
If you are
servicing
PCB CA020108, chip
been
changed from U to A.
unit containing
a
designators
have
CX5200
Field Service
Manual
4-6
Black Screen Troubleshooting (Cont.)
PCB CA020108,
been
changed from U to
chip designators have
A.
Black Screen
Troubleshooting
(Cont.)
***NOTE*»*
If you are
PCB
been
servicing
a unit containing
CA020108, chip designators
changed from U to A.
have
Snowy Screen Troubleshooting
Snowy
Screen
Troubleshooting
(cont.)
CX 5200
PCB
CA020108, chip
been
changed from U to A.
Field Service Manual 4-10
designators have
Snowy Screen
Troubleshooting
(cont.)
U29 is
on PCB #CA0 18087
chip designation
A26 is chip designation
on PCB #CA020108
NOTE***
If you are
PCB
been changed from U to A.
servicing
CA020108,
a unit containing
chip designators have
CX5200
Field Service Manual
4-11
Snowy
Screen Troubleshooting
one-by-one
chips
If modulation
been
located.
shorted, check for possible
trace
shorted on
and turn on unit. «
occurs,
If
bad
chips are not i
board.
(cont.)
chip has
CAP
or
I
I
NOTE***
If
you are
servicing
PCB CA020108,
been
changed from U to A.
a unit containing
chip designators have
Warped Ragged
Picture Troubleshooting
If you are
servicing
unit containing
a
PCB CA020108, chip designators have
changed from U to
been
A.
Color Troubleshooting
been
changed
from U to A.
Color
Troubleshooting
(cont.)
Gray Bars Troubleshooting
Line #
Resistor 8
LM0 R23
LM1
LM2 R25
R24
Output U1
U1
Input Pullup
3
7
1 1
R18 31
R19 22
R20 23
U5 Pin 8
8
Pot
Control Line Troubleshooting
POT Line
Code Failure
Error
22
23
24
25
26 HOR 3
27
28 HOR
29
3-
4-
Pokey Adjust Port and
Pin
U
HOR 1
VERT
HOR 2
VERT
VERT
VERT 4
1
2
3
4
1-10
1-11
2-10
2-11
3-10
11
10
4-11
Pokey
U7
Pin it CAP #1 CAP
14 C98
15 C97
12 C96
13 C95
10 C94
11 C93
S
9 C91
C92
# 2 Resistor
Cl 06 R106
C105
04
Cl
C103
C102
C101 R
C100
R110
R107
Rill
R108
1 1
R109
C99 R113
Pot Control Line
Troubleshooting(Cont.)
Emitter
Base
Collector
13V 13V 3.2V OV
12V
4-6.4 V
13V
OV
4V OV
13V 13V 3.SV
0
0
0 3.2V OV
.7V
OV
3.8V OV
12V 13V
Trigger
Troubleshooting
Line
Bottom Fire Button
If
you are
PCB
servicing
CA020108, chip
a unit containing
designators
been changed from U to A.
have
Softfire (Top Fire Button) Troubleshooting
PCB CA020108,
been changed from U to A.
designators have
chip
Keyboard
Troubleshooting
Is the failure on
Manually
Are there
square
Are there
waves on Pin
select
Adjust Test.
waves
of U9
-
U12?
5v
U9-U12?
Port 1?
5v
p-p
on
p-p
&
9
Pokey
Pin
square
10 of
^o
Page
No
6
f \
KiJ
Page
±±2
4-26
Replace
U7.
KD
(
Page
—I
E2
'
4-23
"
>•
Which
Page
port
failed?
4-24
rori
If you are
PCB
CA020108,
been changed from U to
—
f E4
Page
servicing
I
J
4-25
a unit containing
chip designators
A.
have
Keyboard Troubleshooting (cont.)
Field Service Manual
PCB CA020108,
chip designators
been changed from U to A.
4-22
have
Keyboard Troubleshooting
(cont.)
**NOTE***
If you are
PCB CA020108,
been changed
servicing
from U to
a unit containing
designators have
chip
A.
Keyboard Troubleshooting
(cont.)
CX5200
Field Service Manual 4-24
NOTE***
If
you are
PCB CA020108,
been
servicing
changed from U to
a unit
chip
containing
designators have
A.
Keyboard Troubleshooting
(cont.)
NOTE***
If
you are
PCB CA020108,
been changed
servicing
chip
from
a unit
containing
designators have
U to A.
Keyboard
Troubleshooting (cont.)
If you are
CA020108,
PCB
changed
been
NOTE***
servicing
from U to A.
a
designators have
chip
unit
containing
CX5200
Field Service Manual
4-26
Audio
Troubleshooting
If you are servicing a unit containing
CA020108,
PCB
been changed
chip designators
from U to
A.
have
SECTION
4
A
2-PORT 5200 DIAGNOSTIC FLOWCHART
asked,
When
Flowchart
2-Port
the
follow the line from
that line terminates with a letter inside a circle, locate the letter
The Diagnostic
troubleshooting
a question is
condition.
on a different page and continue the
chance;
it tells
you
when
intended
is
5200.
to perform a specific test
to be
easy to
Follow
diagnosis. The flowchart leaves nothing
the
the
prompts
box
that
components.
SWAPOUT PROCEDURE
At
many
component, a chip, or a
instruction
with known-good components
the new,
problem being checked. If
in and
Once the unit functions properly, reinstall the original
which
places
means that you
known-good
swapout
are actually
the next.
in the diagnostic
number
should
of the same type. The unit should
flowchart,
chips
of
replace the
component(s) in place to see
swapout
the
Repeat
defective.
did not fix the problem,
this procedure for the rest
a box tells
in a particular order.
indicated components (one at a time)
whether
REPLACE IN ORDER
The "replace in order" instruction
indicated in the order listed until the
obtained.
means that you
result called
use
and the primary
in the
order presented.
best
applies to your unit's
and
you to
then
swapout
the
leave
of the
one
by
the
IC's
should replace
out in
when
aid
When
when
The
be
one to determine
the
previous block
replace
to
"swapout"
"swapout"
tested
the
with
solved the
new
chip
components.
components
to
a
is
-
F
Some lines terminate
beginning of
-
N
Some
Atari Repair Hotline.
CX5200
the test
lines terminate with
Field Service
with
sequence
F inside
an
on page
an N
Inside
(800)
3A-1.
inside a circle.
California
672-1466
Outside California
538-1535
(800)
538-1536
(800)
Manual 4A-1
a circle.
When
this occurs, return to the
When this occurs,
call your
Changed by
BLACK SCREEN TROUBLESHOOTING
IC #
A1
A2
A3
A5
A6
A7
A8
A9
A10
All
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A27
8
21
27
16
17
24
16
16
16
14
14
16
16
8
14
Gnd
8
1,21
1
3
8
1
12
8
8
16
16
16
16
16
16
16
16
BLACK SCREEN TROUBLESHOOTING (Continued)
BLACK SCREEN TROUBLESHOOTING (Continued)
IC #
A1
A2
A3
A5
A6
A7
+5
1 8
8
21
27 3
16
17 1
A8 24
A9
16
A10 16 8
All
A14
A15
A16
A17
A18
16 8
14
14 7
16 8
16 8
8 16
A19 8
A20
A21
8
8 16
A22 8
A23 8
A24 8
A25 8
A27
14 7
Gnd
1,21
1
8
12
8
7
16
16
16
16
16
16
Note: Some 5200 2-port boards
A7 jumpered together
of
PCB. Future PCB's will incorporate this
Do
not add
these
jumpers
pins
have
on
to the 5200 2-port
1,8,9,10
the solder side of the
and
jumper.
board.
11
BLACK SCREEN TROUBLESHOOTING (Continued)
CX5200 Field
Service
Manual 4A-5
Changed
by
BLACK SCREEN
TROUBLESHOOTING (Continued)
F
Whenever the
flowchart
procedure in Section
again
operational.
directed
to enter the
directs you to F, return to the beginning of the testing
3. Proceed
until another error is encountered and you are
flowchart
or
until
the unit has
proven
to be fully
CX5200
Field Service
Manual 4A-7 Changed by
BLACK SCREEN TROUBLESHOOTING (Continued)
BLACK SCREEN TROUBLESHOOTING (Continued)
CX5200
Field Service Manual
4A-9
SNOWY
SCREEN (POWER SUPPLY) TROUBLESHOOTING
SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING (Continued)
CX5200
Field Service Manual
4A-11 Changed
by
SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING (Continued)
WARPED, RAGGED PICTURE TROUBLESHOOTING
COLOR TROUBLESHOOTING
COLOR TROUBLESHOOTING (Continued)
by
GRAY BARS TROUBLESHOOTING
Line #
Resistor
LM1*
LM2
LM3 R26
•The
1.1
Diagnostic
R24
R25
# A1
Cartridge
Output A1 Input Puli
does not test
LMO.
up
# A5 Pin
R19
R20
R21 24
22
23
#
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