#septandy #lowercasemod

In part 1, this machine was presenting with an odd video problem that really had me stumped. I also upgraded the video memory to 8-bits but that resulted in a different problem. In this video, I fix both of these issues and finally get this machine working with the expansion interface.

Part 0: [ Ссылка ]
Part 1: [ Ссылка ]
Part 2: This part!

Diagnostic ROM deep dive companion video:
[ Ссылка ]

--- Video Links

Here's where this machine came from! (and all of the TRS-80 machines Al Miner's grandfather had:)
[ Ссылка ]

TRS-80 Model 1 (and Model 3) diagnostic ROM:
[ Ссылка ]

2364 adapter PCB:
[ Ссылка ]

Frank IZ8DWF's channel: (for really amazing repairs)
[ Ссылка ]

When good caps go bad: (t-shirt donated by Jesse)
[ Ссылка ]

Adrian's Digital Basement Merch store:
[ Ссылка ]

Adrian's Digital Basement ][ (Second Channel)
[ Ссылка ]

Support the channel on Patreon:
[ Ссылка ]

-- Tools

Deoxit D5:
[ Ссылка ]
[ Ссылка ]

O-Ring Pick Set: (I use these to lift chips off boards)
[ Ссылка ]

Elenco Electronics LP-560 Logic Probe:
[ Ссылка ]

Hakko FR301 Desoldering Iron:
[ Ссылка ]

Rigol DS1054Z Four Channel Oscilloscope:
[ Ссылка ]

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
[ Ссылка ]

TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
[ Ссылка ]
[ Ссылка ]

TS100 Soldering Iron:
[ Ссылка ]
[ Ссылка ]

EEVBlog 121GW Multimeter:
[ Ссылка ]

DSLogic Basic Logic Analyzer:
[ Ссылка ]
[ Ссылка ]

Magnetic Screw Holder:
[ Ссылка ]
[ Ссылка ]

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
[ Ссылка ]

RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
[ Ссылка ]

Plato (Clone) Side Cutters: (order five)
[ Ссылка ]

Heat Sinks:
[ Ссылка ]

Little squeezy bottles: (available elsewhere too)
[ Ссылка ]

--- Links

My GitHub repository:
[ Ссылка ]

Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
[ Ссылка ]

--- Instructional videos

My video on damage-free chip removal:
[ Ссылка ]

--- Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino

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