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Miller and Kreisel MK MX-100 Very low audio - M & K - Miller & Kreisel M&K MX100



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A Miller and Kreisel sent to me with the complaint of very low audio. I should have just tested the ESR of the caps first because you guessed it. Someone had replaced one of he caps with a cheap generic cap and that was the issue. It got all of the amp board caps replaced with good quality Panasonic caps.
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Thank you to these people that have supported my channel by making a donation or by having me repair their unit.
Rudy Kraker Dan Latorre Jim Louderback Philip Brown (Thank you for monthly support) Justin Tuhua Cynthia Adams John Roach John Quinn Ashley Silas Sherri Parsons Jim McCarthy David Arballo Steve Navarro Keith Claro Frank Conlon Graham Foral Bob Hendrix Jim Meschler David Jacobson Randy Fink Scott Kullen Obaid Khan Robert Brothers Timothy Edds Brian Gay Owen Flint Dana Dainels Tyler Bridge Dena Hamilton Paul Agbuya Samuel & Nancy Guich Dot Morgan Timothy Ritchel William Holloman Cynthia Adams Andrew Oros George Savage Graham Foral Paul Agbuya Scott DuVall Christian Brenzel Russell Houtz Philip Brown Michael King Erick Pastor Robert Ettinger Christopher Cicero Heath Lasswell Timothy Ritchel Benjamin Rubio Michael Dukes Dot Morgan Casey Cane Teri DeLeo Kelly Knutson Howard Goble Diana Williams Reed Graham Christopher Wang David Ammerlaan John Johnson Shaheed Amirkhan Brett Sherry Joseph L Ozvold Sweidan Omar John Eggers Linda Kuo Daniel Pyles Melanie Branton Lisa Sklar Barry Marchant John Harper Larry Mcdonald Annette Lewis Howard Goble Hugo Tajimaroa M R Rajesh Uri Cohen


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00:00 Intro and tests
01:34 Power supply tests
03:33 I should have looked at the oddball cap
04:02 Capacitor ESR tests
05:05 Mark the polarity of the old capacitors
05:29 Unsoldering capacitors
06:38 Negative feedback loop and schematic
07:37 New capacitors and installing them
08:31 Retensioning molex connectors
08:58 After repair tests
10:14 Wattmeter test
10:43 Infrared camera readings
12:27 Final thoughts
12:59 Closing words
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