How To Restore Vintage Marantz

This is it! The most complete Marantz restoration how-to video on YouTube! Please read this. Only use this video to help you restore your Marantz or other receiver if you're very confident in your abilities. I'm not responsible if you damage something or hurt yourself. Most importantly, understand that this is MY take on doing a restoration. Others might have different ways of doing things, others may also think things in this video are just plain wrong. This is a long video, but there's probably things that I forgot to mention in places. The 2215B was not a good choice for this video in some ways since it has some pretty unique differences compared to the majority of vintage Marantz receivers. I have restored a 2250B video by video in the past, so I'll link those board-specific videos here: Preamplifier: https://www.youtube.com/watch?v=bjVJCFh_phM Power Amplifier: https://www.youtube.com/watch?v=fL10NePuFgs Power supply: https://www.youtube.com/watch?v=Grjbinduclw Filter capacitors (chassis mount): https://www.youtube.com/watch?v=qO6PqvzH3jQ If you have questions, you can leave them in the comments or send me an email. You can find my email in this channel's "about" section. Links: Right tools for the job: https://www.youtube.com/watch?v=MLK649c1_fM Another "how it works" video: https://www.youtube.com/watch?v=Wbj20sR5cJk How to find parts: https://www.youtube.com/watch?v=p9cRi99sM-g Don't blindly substitute transistors: https://youtu.be/OiH6FLiF7wI Lamp and vellum paper replacement: https://www.youtube.com/watch?v=E5aA1gia0vo Power switch replacement: https://www.youtube.com/watch?v=356LK540TVA Transistor substitutions (use with caution): https://audiokarma.org/forums/index.php?threads/transistor-substitutions.688515/ Service manuals: www.hifiengine.com 0:00 - Introduction 1:48 - Why Restore? 4:20 - What To Know 5:38 - How It Works 13:24 - How To Use Service Manual 20:32 - Parts To Buy 35:12 - Disassembly 41:08 - Preamp Detailed Restoration 42:46 - Using The Service Manual 50:23 - Desoldering 1:00:12 - Glue Removal 1:03:28 - Soldering 1:15:50 - Cleaning Controls 1:21:36 - Power Supply Detailed Restoration 1:49:42 - Phono Preamp Restoration 1:52:18 - Power Amplifier Restoration 2:13:15 - Tuner Board Restoration 2:18:07 - Conclusion