Atari 800 Service Manual

Figure 5-17. 400 Console, Bottom Cover Screw Location
2. Keyboard removal, refer to Figure 5-19
• Remove single Keyboard screw (no. 6 32x1/4)
• Raise left end of Keyboard and disconnect Keyboard Ribbon
Cable
3. Power Supply Removal, refer to Figure 5-20 o Disconnect RF Cable
from Power Supply
• Remove two screws (no. 6 32x3/8) from Power Supply
• Gently pull Power Supply away from casting 1/4 inch and lift
out the Interlock Switch plunger
• Lift Power Supply straight up off the Motherboard connector
pins.
Access to CPU, RAM, and Motherboard:
1. Module Assembly removal, refer to Figure 5-21
• Disconneet and remove Speaker assembly
• Lift Module Assembly out of Bottom Cover
2. CPU and RAM Printed Circuit Board Removal
5-31 System Service Manual

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