Atari 400 Service Manual

• Remove the plastic Cartridge Guide by unhooking the four
latches from bottom side of Motherboard.
Figure 5-25. 800 Console, Module Assembly Removal
5.7 ASSEMBLY, 400 COMPUTER CONSOLE
The following paragraphs outline the steps required to re-assemble
the 400 Computer Console and its related printed Circuit boards.
1. Module Assembly re-assembly, refer to Figure 5-21
• Snap Cartridge Guide into Motherboard (only goes one
way)
• Insert RAM Memory bQard and CPU printed circuit board
into Motherboard with compQnent side of PCB to the rear.
Before re-assembling PCBs be sure that they have been
cleaned and lubricatedr refer to paragraph 5.2.1.
CAUTION
Do not allow tip of screwdriver to damage traces
ATARI Personal Computers 5-40

Atari 400 Specifications

General

Manufacturer	Atari
Model	400
Type	Home Computer
Release Year	1979
CPU	MOS Technology 6502
CPU Speed	1.79 MHz
ROM	10 KB
Operating System	Atari OS
Keyboard	Membrane keyboard
RAM	8 KB (expandable to 48 KB)
Graphics	ANTIC and GTIA chips
Sound	4 channels
Display	RF output for connection to TV
Storage	Optional cassette tape drive or floppy disk drive
Ports	Cartridge
Display Resolution	320x192 (16 colors)