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Atari 400 Service Manual

Atari 400
129 pages
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Figures also appear one time after their first reference in text,
unless repeating the figure is easier than having the reader refer
back.
1.3.1 General Information
This chapter contains a general description of the ATARI 400/800 Com-
puter Consoles, a physical description of the system (dimensions,
weights, and operating specifications), and a summary of the periph-
eral equipment used with the system. All system operating features
and options are described.
This chapter also contains general information such as the scope of
the manual and how to use the information in it. Also, it provides
safety precautions unique to the ATARI 400/800 Computer Systems and a
listing of related documents.
1.3.2 Installation
Chapter 2 contains detailed procedures for unpacking, system setup
and initialization, checkout and repacking.
1.3.3 System Operation
Chapter 3 contains procedures for system power-up, using the keyboard
and screen editor functions, using program cartridge system keys, and
controllers and operating the program cassette recorder.
1.3.4 Functional Description
Chapter 4 provides a functional description of the ATARI 400/800 Com-
puter Console systems. The functional description will be presented
using a functional block diagram discussion to the integrated circuit
level. This information is presented to familiarize the service tech-
nician with the ATARI 400/800 Computer Console as a system, thereby
providing him/her with a basis for troubleshooting system faults.
1.3.5 Maintenance
Chapter 5 presents preventive maintenance, troubleshooting, and
repair instructions. Preventive maintenance includes instructions for
normal cleaning and inspection tasks. The troubleshooting portion of
the chapter presents symptom probable-cause corrective action types
of tables. The repair portion of the chapter provides instructions
for replacing printed circuit assemblies, whole assemblies, and
specific integrated circuits in keeping with the ATARI maintenance
philosophy.
ATARI Personal Computers 1-3
1.3.6 Spare Parts List and Ordering/Reporting Information

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Atari 400 Specifications

General IconGeneral
ManufacturerAtari
Model400
TypeHome Computer
Release Year1979
CPUMOS Technology 6502
CPU Speed1.79 MHz
ROM10 KB
Operating SystemAtari OS
KeyboardMembrane keyboard
RAM8 KB (expandable to 48 KB)
GraphicsANTIC and GTIA chips
Sound4 channels
DisplayRF output for connection to TV
StorageOptional cassette tape drive or floppy disk drive
PortsCartridge
Display Resolution320x192 (16 colors)

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