Classic intermittent "popping" noise from this Presonos Eris 5 studio monitor speaker. Electrolytic Capacitors are suspect number one.00:00 - Faulty Presonos Eris 5 speaker. Classic "popping" sound.03:48 - Teardown07:16 - Testing for popping again07:36 - Testing for hiss08:32 - Rectified voltage testing09:34 - Woah, that's that?10:26 - Getting the PCB out10:55 - A look at the PCB under the microscopeTAD7294:https://www.st.com/resource/en/datasheet/tda7294.pdf13:15 - Missing parts14:39 - Removing the capacitors16:00 - Measuring the main filter capacitors17:14 - The Preamp PCB18:08 - What is the most likely culprit?20:21 - In-circuit ESR testing21:32 - All new capacitors24:15 - Soldering in new caps and testing25:38 - What did I goof?27:57 - ConclusionForum: https://www.eevblog.com/forum/blog/eevblog-1714-presonos-eris-speaker-repair-(capacitor-pop)/Web Site: http://www.eevblog.comHardware Store: https://eevblog.store/Merch Store: https://eevblog.dashery.com/If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblogOther channels:EEVblog2: http://www.youtube.com/EEVblog2EEVdiscover: https://www.youtube.com/eevdiscover#ElectronicsCreators...https://www.youtube.com/watch?v=xVp7yund84w

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