I Fixed Two Broken Zoom SampleTrak ST-224 Samplers for $15 (Teardown & Pad Repair)

Picked up two broken Zoom SampleTrak ST-224 samplers off Facebook Marketplace for $150, seller said the pads were "hard." Turned out to be dead carbon contacts, a liquid spill, and a busted tact switch. Both units are now fully working and the whole repair cost about $15. If you've got an ST-224 with unresponsive pads, sticky pots, or dead buttons, this video covers everything you need to fix it yourself. Timestamps: 0:00 — Intro & new sample pack drop 1:00 — What I bought and why (Facebook Marketplace find) 2:15 — Full teardown walkthrough 3:21 — Pad contacts and carbon grid explained 4:06 — Cleaning the PCB with 99% ISO 4:52 — DeoxIT on inputs, pots, and jog wheel 6:15 — Cleaning pads — Windex first, then ISO 8:57 — Applying KEYPADFIX conductive carbon paint 11:24 — Reassembly tips 15:17 — Revision differences between the two units 16:31 — Rubber feet upgrade 16:45 — First power-on 18:08 — Second teardown (residue stuck to PCB contacts) 23:45 — Final test — everything working Products used: KEYPADFIX conductive carbon paint (~$15) DeoxIT D5 (audio inputs) DeoxIT Fader (pots & jog wheel) 99% Isopropyl Alcohol Standard blue Windex (pad cleaning — not ISO, it dries out rubber) New sample pack and everything else at re-sampled.com https://re-sampled.com/exclusive-merc... https://www.discogs.com/seller/re-sam... https://re-sampled.bandcamp.com/ Discord → [link] | Contact → [email]