Erase a 40-Pin AM27C400 Programmable EPROM With Ultraviolet Light for Upgrading the ROMs of Retro Computers Such as the Amiga 600 and 1200 (30-60 mins)

Hardware, Modification

Task: Erase a 40-Pin AM27C400 Programmable EPROM With Ultraviolet Light Needed: AM27C400 EPROM, UV light source, TL866 universal programmer Time: 30-60 minutes Introduction I have previously posted about burning 40-pin AM27C400 EPROM chips for upgrading the ROM of an Amiga 1200. Unfortunately, several of my EPROMs were not fully blank

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Upgrade the Kickstart ROM on an Amiga 500 Revision 5 Motherboard Using an EPROM and Socket Adapter (30-60 mins)

Hardware, Modification, Software

Task: Upgrade the Kickstart ROM on an Amiga 500 Revision 5 Motherboard Using an EPROM and Socket Adapter Needed: Amiga 500 With Revision 5 Motherboard, EPROM, EPROM Programmer, EPROM Programmer Adapter, Kickstart ROM Socket Adapter Time: 30-60 minutes Introduction I purchased a stock Amiga 500 computer online within the last

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Create a Diagnostic ROM Chip for Your Amiga Computer Using a 27C400 EPROM and a TL866 Programmer with Adapter (30-60 mins)

Hardware, Repair

Task: Create a Diagnostic ROM Chip for Your Amiga Computer Using a 27C400 EPROM and a TL866 Programmer with Adapter Needed: 27C400 EPROM, TL866 Programmer, EPROM adapter, Diagnostic ROM file Time: 30-60 minutes Introduction I have previously posted about building a diagnostic cartridge for diagnosing problematic Commodore 64s. A similar

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Assemble a 27C322/160/800/400 EPROM Programming Adapter for Creating New ROM Chips for Retro Computers Such as the Amigas and Classic Macs (30-60 mins)

Hardware

Task: Assemble a 27C322/160/800/400 EPROM Programming Adapter for Creating New ROM Chips for Retro Computers Such as the Amigas and Classic Macs Needed: 27C322/160/800/400 EPROM Programming Adapter or kit requiring soldering Time: 30-60 minutes Disclosure: Note that as an eBay Partner Network Affiliate, I may earn from qualifying purchases Introduction

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Build a 2-in-1 Dead and Diagnostic Test Cartridge for Diagnosing Non-Working Commodore 64s (1-2 hrs)

Hardware, Software, Utilities

Task: Build a 2-in-1 Dead and Diagnostic Test Cartridge for Diagnosing Non-Working Commodore 64s Needed: 2-in-1 circuit board, two EEPROM chips, an EEPROM programmer, two 100 nF capacitors, soldering iron, cartridge case and screw(s) Time: 1-2 hours Disclosure: Note that as an eBay Partner Network Affiliate, I may earn from

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Test Integrated Circuits Using a TL866 Universal Programmer (10-15 mins)

Hardware, Repair, Software

Task: Test Integrated Circuits Using a TL866 Universal Programmer Needed: Web browser, TL866 Universal Programmer, Compatible IC to Test Time: 10-15 minutes Introduction Troubleshooting a failed retrocomputer can often come down to determining whether any of the integrated circuits (ICs) have shorted and failed. There are several options for testing

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