Atari 800 Service Manual

NOTE
Check spacebar and keys to make sure they are not binding before
proceeding to next step
2. Motherboard installation, refer to Figure 5-28
• Snap plastic Cartridge Guide into top side of
Motherboard
• With Motherboard right side up, snap onto four nylon
clips on Lower Shield. Make sure all four clips are
firmly seated.
3. CPU Printed Circuit board installationr refer to Figure 5-27
• Plug in CPU printed circuit board. Make sure component
side of board faces away from plastic Cartridge Guide
and is firmly seated.
• Set Aluminum Casting on its' back
• Turn Motherboard upside down, set Motherboard and Lower
Shield into Aluminum Casting
CAUTION
Ensure CPU printed circuit board sits in its slot in the
Aluminium Casting
• Install nine screws (no. 6 32x5/8) in Lower Shield
• Set system on its feet.
4. Power Supply installation, refer to Figure 5-26
• Carefully line up Motherboard pins to Power Supply
connector
• Set Power Supply over guide pins on Aluminum Casting and
gently press down
• Insert three screws (no. 6 32x5/16) in Power Supply
board
• Reconnect Power Supply harness
ATARI Personal Computers 5-44

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS