Atari TT030 Computer Field Service Manual
The Atari TT030 Computer Field Service Manual is Atari Corporation's service manual for the Atari TT030, part number C302483-001, dated August 1991. The hosted scan has 129 PDF pages and a searchable text layer. Its first page is a German cover ("ATARI Service-Manual TT030, Copyright 1991 ATARI Computer GmbH"); the English title page follows. Printed page numbers start at the introduction, so PDF page = printed page + 7 for sections 1 to 6.
Contents
[edit | edit source]| Section | Content | Printed pages | PDF pages |
|---|---|---|---|
| 1 | Introduction: overview, main components, case design (front, left side and rear views), power supply rating | 1–3 | 8–10 |
| 2 | Theory of operation: processor, coprocessor, ROM, RAM and memory map, SCU, DMA, MCU, real-time clock, video and monitor connector, sound, MIDI, SCSI, floppy, SCC and MFP serial ports, parallel port, keyboard, mouse and joystick, cartridge, VMEbus, start-up sequence, bombs, block diagram | 4–28 | 11–35 |
| 3 | Testing: test equipment and set-up, troubleshooting a dead unit, TT030 diagnostic cartridge (revision 1.4) and its tests, error codes quick reference | 29–66 | 36–73 |
| 4 | Disassembly and reassembly | 67–71 | 74–78 |
| 5 | Symptom checklist | 72–74 | 79–81 |
| 6 | Diagnostic flowcharts | 75–78 | 82–85 |
| 7 | Parts lists: TT RAM and ST RAM daughterboards and their shipping kits, the 32 MHz main board sub-assembly by country, TOS ROM sets, and main assembly CA400416 with its ECO history | – | 86–101 |
| 8 | Drawings: exploded assembly (p. 103), RAM daughterboard assembly drawings and schematics including TT RAM board CA401058 and its jumper table (pp. 104–111), main board assembly drawing CA400961 with rework procedures and jumper settings (p. 112), PCB silkscreen (p. 113), main board schematic C301762-001, sheets 1–12, dated 1 July 1991 (pp. 114–125) | – | 102–125 |
| 9 | Glossary | – | 127–129 |
What it does not contain
[edit | edit source]- No component-level parts list for the main board or the power supply. The main board appears in the parts list as a sub-assembly, and the supply as a single Phihong part. The ST RAM daughterboard is the only board listed component by component.
- No schematic of the power supply, and no voltage tolerances for its outputs.
- The parts-list pages are faint in the scan, and some are hard to read.
What it settles
[edit | edit source]- The supply has four outputs, including −5 V, and is a Phihong PSM 5341 (C302074-001), rated 64 W.
- The clock battery is a 3.6 V 400 mAh lithium cell, C301020-001.
- Atari's text describes the coprocessor as a socketed MC68881, replaceable by an MC68882; the July 1991 schematic shows an MC68882 at U101.
- The factory rework for ECO 1323 insulates fuse F61 and ferrite bead L601 from the supply's mounting foot.
- Its schematic is a later issue than the separately hosted Atari TT030 Schematic, and gives a value at every capacitor position.
Pages that cite this document
[edit | edit source]- Atari TT030: specifications, memory, ports, power supply, rework procedures
- Atari TT General Maintenance: disassembly, supply rating, battery, jumpers and switches
- Atari TT Troubleshooting Guide: dead-unit procedure, diagnostic cartridge error codes, symptom checklist, bombs
- Atari TT Capacitor Replacement Guide: capacitor list from the schematic, ST RAM board electrolytics
- Atari Mega STE, Atari Mega STE General Maintenance, Atari Mega STE Troubleshooting Guide, Atari Mega STE Capacitor Replacement Guide: rating of the Phihong PSM-5341 supply
- Battery Refurbishment: TT030 clock battery
Related documents
[edit | edit source]- Atari TT030 Hardware Reference Manual
- Atari TT030 Schematic
- Atari TT030 1.44MB Floppy Disk Drive Installation Manual
Download: Atari TT030 Computer Field Service Manual.pdf (4.3 MB)