FeedbackLoop | #122 - Tektronix TDS5054B-NV-AV oscilloscope repair @feedback-loop | Uploaded 3 years ago | Updated 1 day ago
This scope stopped powering up at some point. The motherboard was found to be at fault. After some attempts to troubleshoot the motherboard, a similar board was picked up on eBay for a reasonable price, which brought the scope back to life.

Forum: https://www.eevblog.com/forum/repair/tektronix-tds5054b-nv-av-oscilloscope-repair/