Atari 800XL Technical Service Data

DISASSEMBLY INSTRUCTIONS
CABINET REMOVAL
Remove six screws from cabinet bottom. Lift cabinet top
up and disconnect keyboard cable. Cabinet top may now be
removed.
MAIN BOARD REMOVAL
Remove four screws holding PC board to cabinet bottom.
Lift PC board and metal shield from cabinet bottom. To
remove shield, remove ten screws holding shield together
and remove shield from main board.
GENERAL OPERATING INSTRUCTIONS
POWER UP
TheComputer will come up ready to program in Basic when
the Computer is turned On.
For instructions on loading and saving programs with an
Atari Recorder see the "Cassette Operation" section.
To run a program type RUN and press the RETURN key. To
stop a program, press the BREAK key or press the system
RESET key.
CASSETTE OPERATION
Connect the Atari Program Recorder to the connector on
the right side of the Computer. NOTE: A standard tape
recorder will not work with this Computer.
To load a program, type CLOAD and press the RETURN key.
The speaker will beep once. After the speaker beeps, push
the PLAY button on the Recorder and press the RETURN
key again. The program will then load. The word READY on
the screen indicates the loading is completed. The Re¬
corder will shut-off automatically.
To save a program, type CSAVE and press the RETURN key.
The speaker will beep twice. After the speaker beeps, press
the PLAY and RECORD buttons on the Recorder and then
press the RETURN key. The program will then save. The
word READY on the screen indicates the program has been
saved. The Recorder will shut-off automatically.

Atari 800XL Specifications

General

Manufacturer	Atari
Type	Home computer
Release year	1983
CPU	MOS Technology 6502C
RAM	64 KB
ROM	24 KB
Operating System	Atari OS
CPU Speed	1.79 MHz (NTSC) / 1.77 MHz (PAL)
Graphics	ANTIC and GTIA chips
Display resolution	160×192 to 320×192 pixels
Sound	POKEY chip
Storage	Cassette tape, floppy disk
Ports	Serial, parallel, monitor, joystick ports