Tandy CM-1: A high-end 400 line 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 640x400 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:    • Fixing a rare and broken high-res video ca...   Vwestlife's channel and video:    / @vwestlife      • Tandy's graphic-less graphics card: the De...   Service manual: https://github.com/Tandy2K/Tandy2000/... https://colorcomputerarchive.com/repo... https://colorcomputerarchive.com/repo... https://colorcomputerarchive.com/repo... Adrian's Digital Basement Merch store: https://my-store-c82bd2-2.creator-spr... Adrian's Digital Basement ][ (Second Channel)    / @adriansdigitalbasement2   Support the channel on Patreon:   / adriansdigitalbasement   My GitHub repository: https://github.com/misterblack1?tab=r... -- Tools Deoxit D5: https://amzn.to/2VvOKy1 http://store.caig.com/s.nl/it.A/id.16... O-Ring Pick Set: (I use these to lift chips off boards) https://amzn.to/3a9x54J Elenco Electronics LP-560 Logic Probe: https://amzn.to/2VrT5lW Hakko FR301 Desoldering Iron: https://amzn.to/2ye6xC0 Rigol DS1054Z Four Channel Oscilloscope: https://www.rigolna.com/products/digi... Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier: https://amzn.to/3adRbuy TL866II Plus Chip Tester and EPROM Programmer: (The MiniPro) https://amzn.to/2wG4tlP https://www.aliexpress.com/item/33000... TS100 Soldering Iron: https://amzn.to/2K36dJ5 https://www.ebay.com/itm/TS100-65W-MI... EEVBlog 121GW Multimeter: https://www.eevblog.com/product/121gw/ DSLogic Basic Logic Analyzer: https://amzn.to/2RDSDQw https://www.ebay.com/itm/USB-Logic-DS... Magnetic Screw Holder: https://amzn.to/3b8LOhG https://www.harborfreight.com/4-inch-... Universal ZIP sockets: (clones, used on my ZIF-64 test machine) https://www.ebay.com/itm/14-16-18-20-... RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI) http://www.retrotink.com/ Plato (Clone) Side Cutters: (Order Five) https://www.ebay.com/itm/1-2-5-10PCS-... Heat Sinks: https://www.aliexpress.com/item/32537... Little squeezy bottles: (available elsewhere too) https://amzn.to/3b8LOOI --- Instructional videos My video on chip removal without damage:    • How to remove chips without damaging the c...   --- Music Intro music and other tracks by: Nathan Divino @itsnathandivino