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YouTube

Marshall JCM800 Lead Series Repair - Major Power Supply Issues

Retro Tech & Electronics via YouTube

Overview

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Dive into a detailed repair process of a Marshall JCM800 Lead Series amplifier experiencing cutout issues and blown fuses. Begin with a thorough visual inspection, identifying expanding electrolytic capacitors and oxidation in tube sockets. Discover capacitor leakage on the underside and uncover the owner's misguided attempt to use higher-rated fuses. Learn how to properly clean and test tube sockets, identifying a shorted finals tube. Follow along as the technician strategically deflects the circuit board to access and replace all capacitors, addressing major power supply issues in this first part of a two-part repair video.

Syllabus

Marshall JCM800 Lead Series Repair - Major Power Supply Issues 1 of 2

Taught by

Retro Tech & Electronics

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