These touch screen terminals are built like absolute tanks (Lucas Deeco ST3220) @adriansdigitalbasement
These touch screen terminals are built like absolute tanks (Lucas Deeco ST3220)  @adriansdigitalbasement
Uploaded April 2025 | Updated September 2026, 2 weeks ago
I had never heard of Lucas Deeco until working on these terminals. These two terminals are fascinating IP65 touch screen terminals for use in hostile environments. (Hostile to computers) Let's dig into what makes these tick and see if I can figure out why one of them is not working.

Part 1: This part!
Part 2: youtu.be/VXDWrebmlNg

-- Links

Manual:
archive.org/details/lucas-deeco-sealtouch-graphics-terminal-applications-manual

Photos and ROM dumps:
archive.org/details/lucas-deeco-seal-touch

Historical copy of Lucas Deeco's website:
web.archive.org/web/19980130115145/http://www.deeco.com

Patents:
patents.google.com/patent/US4812830A/en
patents.google.com/patent/US4893120A/en

Some linux support exists for Lucas Deeco monitors:
linuxdoc.org/HOWTO/Hardware-HOWTO/other.html

SCADA system integrators used these:
controlsystemsintegration.com/projects.htm

Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com

Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
patreon.com/adriansdigitalbasement

My GitHub repository:
github.com/misterblack1?tab=repositories

-- Tools

Deoxit D5:
amzn.to/2VvOKy1
store.caig.com/s.nl/it.A/id.1602/.f

O-Ring Pick Set: (I use these to lift chips off boards)
amzn.to/3a9x54J

Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW

Hakko FR301 Desoldering Iron:
amzn.to/2ye6xC0

Rigol DS1054Z Four Channel Oscilloscope:
rigolna.com/products/digital-oscilloscopes/1000z

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
amzn.to/3adRbuy

TL866II Plus Chip Tester and EPROM Programmer: (The MiniPro)
amzn.to/2wG4tlP
aliexpress.com/item/33000308958.html

TS100 Soldering Iron:
amzn.to/2K36dJ5
ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853

EEVBlog 121GW Multimeter:
eevblog.com/product/121gw

DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672

Magnetic Screw Holder:
amzn.to/3b8LOhG
harborfreight.com/4-inch-magnetic-parts-tray-90566.html

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971

RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
retrotink.com

Plato (Clone) Side Cutters: (Order Five)
ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

Heat Sinks:
aliexpress.com/item/32537183709.html

Little squeezy bottles: (available elsewhere too)
amzn.to/3b8LOOI

--- Instructional videos

My video on chip removal without damage:
youtube.com/watch?v=XQVjwPsVFd8

--- Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino
These touch screen terminals are built like absolute tanks (Lucas Deeco ST3220)Lava RSC: A great NES clone with RGB outputRepair of a very broken Mac SE/30 motherboardI tried to fix a cursed Nintendo Famicom. It broke me.Interfacing NES/SNES controllers directly to the Apple IIApple IIgs: A very satisfying repairA very rotten Macintosh PlusBrand new motherboard for my original FamicomA very broken Brazillian Apple ][+ clone (MILMAR Part 1)Repairing a sad and expanded Mac 512k (Reed College, Macs-a-Million)PC Archeology: The Altima One laptop (Altima Systems)What have I done? I hope I made the right decision!
Adrians Digital Basement |

These touch screen terminals are built like absolute tanks (Lucas Deeco ST3220)

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