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Schematics for Yamama EM-200 with S0140H restoration project
Old 14th September 2018
Here for the gear

Schematics for Yamama EM-200 with S0140H restoration project

Hi All,

I've inherited an old school Yamaha EM-200 with a pair of S0140H cabinets.

Looks SUPER cool. I've reached out to Yamaha, they're extremely responsive and dug out an explosion diagram for the cabs in like 24 hours. Wow. What a great company. Parts are in Kanji / Katakana though.

Does anyone happen to have ANY schematics or other documents specifically for the EM-200 mixer?

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Schematics for Yamama EM-200 with S0140H restoration project-unnamed.jpg  
Old 14th September 2018
Here for the gear

It's been quite a while since I've worked on analog gear.

Just a brainstorm for a realistic process here.

1) Go through all solder joints and clean up any cold solder joints
2) Replace ALL electrolytic capacitors
3) Detach power supply, power it on, test power supply in isolation

Originally I thought it might be cool to replace the power supply entirely but Yamaha advised that it might be cooler to refurb the existing one since it has a big badass transformer that will contribute to the sound.

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