Overview; Model 5200 Console; Four-Port Universal Pcb Differences - Atari CX 5200 Field Service Manual

Overview

The A T A RI Advanced Video Entertainment System (Model 5200) is an advanced
microcomputer. It receives input from the game controllers, Read-Only-Memory
(ROM) cartridges and other peripherals, and displays this input on a T. V. screen.
maximum of four players may play at one time.
The Model 5200 is composed of the console, switchbox and game controllers.
following paragraphs provide a general discussion of each of these items and their
component parts. For a detailed discussion of the Game Controller see SECTION 6.

Model 5200 CONSOLE

The Model 5200 console is composed of
board and its RF Shield. Figure 1- 1 shows the console and its parts.
three
There are currently
Some models contain the original "--port PC Board, number CAO 18087. Other consoles
contain a 4-port universal PC Board, number CA020108.
two player ports, number CA021374,
manual
references in this
specific differences of the "--port universal PCB and the 2-port universal PCB are
called out below.

Four-Port Universal PCB differences:

External
The ATARI serial number on the bottom of the unit will have a + as its third
designator. For example:
Internal
The chip designators have been changed.
1)
instead of U.
2) Two 74LS244 ICs (U4 and U 15) were removed from the PC Board.
3 ) Two 74LS244 ICs (U 14 and U28) were replaced with a 7 4LS125 (A14) and a
74LS51 (Al 5).
4) Provisional circuitry for future expansion has been added in order to
accommodate the VCS TM cartridge adaptor.
CX5200 Field Service Manual
SECTION 1
THEORY OF OPERATION
an outer plastic case which houses the PC
different PC Boards being used
is
also available.
the
pertain to original 4-port PCB, number CA018087.
CITE CODE
DA TE
,-L--.
A T + 2 1 3
+
4-PORT
DESIGNATO(l.
1- 1
in
Model 5200 consoles.
A third PC Board with only
Unless otherwise specified, the
All chips are designated A
Changed by
ECN 110036
6/21/83
A
The
The