Tandy CM-1: A broken high-end 26khz monitor from 1984

#repair On a recent VWestlife video, the Tandy CM-1 monitor was mentioned. This monitor was paired with the high-end Tandy 2000 computer which was released in 1984. What made this monitor special is that it runs at 26khz which provides a 640×400 native non-interlaced video signal.

I picked up this monitor mentioned in VWestlife’s video and it’s going to need some repair, so let’s figure out what’s wrong with this and get it working.

— Links

STB Super Res 400 repair:

Vwestlife’s channel and video:

Service manual:

Adrian’s Digital Basement Merch store:

Adrian’s Digital Basement ][ (Second Channel)

Support the channel on Patreon:

My GitHub repository:

— Tools

Deoxit D5:

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

Elenco Electronics LP-560 Logic Probe:

Hakko FR301 Desoldering Iron:

Rigol DS1054Z Four Channel Oscilloscope:

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

TL866II Plus Chip Tester and EPROM Programmer: (The MiniPro)

TS100 Soldering Iron:

EEVBlog 121GW Multimeter:

DSLogic Basic Logic Analyzer:

Magnetic Screw Holder:

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

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

Plato (Clone) Side Cutters: (Order Five)

Heat Sinks:

Little squeezy bottles: (available elsewhere too)

— Instructional videos

My video on chip removal without damage:

— Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino

source

#Tandy #CM1 #broken #highend #26khz #monitor