Atari 800XL Technical Service Data

MISCELLANEOUS ADJUSTMENTS
COLOR
Turn the Computer On and adjust the Color Control (R38) for
a blue screen on the Monitor.
RF MODULATOR
CHANNEL ADJUST
Set TV on channel 2 or 3 with the AFC off.Set the Computer
Channel Switch (S2) to the same channel and adjust the
Channel Coil <L201) for the best picture.
SOUND ADJUST
Type in and run the following program in Basic.
10 SOUND 0, 100, 10, 15: GOTO 10
Adjust the Sound Coil (L202) for maximum sound with
minimum noise.
Alignment Tools
L201, L202
GC ELECTRONICS
9440

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