EEVblog 1657 – DUMPSTER Samsung 75″ QLED One Connect TV – EEVblog


Almost 30 minutes of tearing down a Samsung 75″ QLED One Connect dumpster TV and trying to power it up to see if it’s busted or not. QA75Q7FNA

00:00 Dumpster Samsung QLED 75″
04:46 – Teardown wasn’t easy as expected…
08:11 – What is this cable retention BS?
11:26 – I’m still at it…
14:22 – Where’s Wally? Follow the voltage.
17:26 – Where do I get 350V DC at a few hundred watts?
21:21 – DIY 350V DC power supply
22:52 – 350V DC right up the clacker
24:19 – I need MORE voltage

Forum:

Elecami Wolf videos:
https://www.youtube.com/watch?v=NF-MVDc1K9Y
https://www.youtube.com/watch?v=w_39JC2Dkdc
Trolley Riding videos:
https://www.youtube.com/watch?v=g3A1XNfDxe0
https://www.youtube.com/watch?v=MC_xeEKd5t4
https://www.youtube.com/watch?v=H9erf8rt54s





Check Also



DC Constant Current sources explained and demonstrated. Forum: Voltage and Current Source Theory: …

Self-oscillating sawtooth generator spans 5 decades of frequencies

There are many ways of generating analog sawtooth waveforms with oscillating circuits. Here’s a method…

Access to this page has been denied.

Access to this page has been denied either because we believe you are using…

Reducing Certification Risk at the Design Stage Hazardous Environments

Hazardous-area electronics demand high reliability, but traditional wired approaches often deliver it at significant cost…

Simplifying inductive wireless charging

What do e-bikes and laptops have in common? Both can be wirelessly charged by induction.…