#Mark levinson no 334 repair manual manual#
Download MARK LEVINSON NO380 service manual & repair info for electronics experts.
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I ended up trying most of the ML equipment. I have a long history of tests with solid. No information is available for this page.Learn why. For 30 years of amp restoration and repair and build, I have not worked on any Mark. This is my first Mark Levinson amp that I worked on. Any transformer you will find in this amp is a toroidal one (marked Mark Levinson). I wrapped (and labeled) all of the nice anodized components to not mar them and aid on re-assembly. Mark the order and location of everything you take off, and mind your good practices for static electricity control. This thing is a maze of boards and components. This entire amplifier is built about the SIGNAL PATH, not assembly or repair. It makes you wonder what it would take to 'upgrade' this thing to a 333. Dis assembly Here is an image showing the output devices, with wired sockets for more transistors. I believe the failed capacitor was conducting to the opposite rail and over drawing one of the MASSIVE toroidal transformers, thereby causing enough heat to melt the rubber material and have it drip out of the machine.
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The 'leak' was actually a dyna-mat type rubber sound dampener material stuck to the walls of the amp. It is important to replace the capacitors immediately as there is a chance that the failing cap may explode or REALLY leak.įurther, you don't want your mega buck amp to loose its peaks and raise its noise floor, you can get that anywhere! I'll save you the save you the suspense. When the filter and supply caps start to go, you will, most obviously, start to hear the 60Hz hum from the mains. Even better news, is that you can replace these caps with super nice, USA made Cornell Dubilier ones. However considering this is now a 20 year old, high power, ferrari-of-amps, machine this is still pretty good.
#Mark levinson no 334 repair manual series#
Replacing the Capacitors in a Mark Levinson 332 Power Amplifier - Replacing the Capacitors in a Mark Levinson 332 Power Amplifier The Amp Made in USA! The Problem The Mark Levinsons in the 33x series are known to be plagued by bad Phillips capacitors.