Uploaded June 2025 | Updated September 2026, 2 weeks ago

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This is the Sony KV-27HS420 Trinitron CRT TV. This one supports HDMI, but how does it perform? Let's dive deep into this WEGA Trinitron.

For more information on repairs, diagnostics and to connect with me, please visit: patreon.com/retrotechUSA

Testing Software for checking CRT displays: artemiourbina.itch.io/240p-test-suite

Capacitor Kit list for this TV: docs.google.com/document/d/1AIQnhVc6xPH4Z9_fahZ9xY0ADTsKnHPCTaqp8ioWjvQ/edit?usp=sharing

#retro #retrotech #crt

0:00 - Intro to the Sony KV 27HS420
7:00 - Inspecting the hardware for problems
13:42 - Repairing & Servicing the circuit boards
19:56 - Testing the restored TV
22:18 - Checking the calibrations & convergence problems
27:25 - Why HDMI CRTs are pretty bad for gaming