Question about Broan-NuTone RC515 Door Chime Remote Control

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Repair at home

I have 4 of your Broan RC515 since 2006 and they all work. One started making a buzzing sound from the speaker which means one of the filter capastors is geting weak and alowing 60HZ to go through. I took it apart and found nothing looking in bad shape. I have electronic understanding but instead of replacing one cap at a time I will just ask you which one would be the most likly one to do. If you can send me a schematic and I will find it my self. Thank you, Robert J Cavasos. rjcrepair@eartklink.net

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  • rjcrepair Aug 16, 2008

    using this esr tester while all caps are still connected to the CB won't work will it?

  • rjcrepair Aug 16, 2008

    Thank you for your info. I don't intend to buy a $200 ESR tester just to fix one door bell. I will just buy a new one when this one quits. However if you would send me the schmatic diagram I will be able to pinpoint the most likely and work my way through all one step at a time.

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You Need to Buy a ESR Electrolytic Capacitor Tester. Can get one on Ebay ( Affordable ) or Shop around. I Bought one New when I was a Troubleshooter & Making A Lot of Money for abt $200. Largest paper or Metal Electrolytic Capacitors are usually Your Main Problem. Elect Caps Dry out from Heat-age. Capacitor Testers DO NOT Find these Problems I Tried them. More Often I always find More than One Bad ESR Electrolytic Capacitors on All Audio, Intercom, Computer Monitors, Color Tvs I Service. The two leads You put across all Elect Caps on Motherboard or Chassis Instantly Tells if good-bad. I Make and Save Money on all Products I Often service with ESR Problems. Esr Tester Pays for itself Quickly. Takes Disassemly and time to Restore Service But I always Get the Job Done.

Posted on Aug 16, 2008

  • Jack Emery
    Jack Emery Aug 17, 2008

    The ESR Tester is Made and will work IN Circuit. No Unsoldering. It Finds all Bad ESR Caps. Don't have Circuit. I Fix almost everything without a Schematic when its Bad ESR Caps. Bending, Weaving, Hum are all the Symptons. OverHeating of Semiconductors & Tubes will Happen with this AC Ripple NOT Being Filtered. If You Locate the Low Voltage Power Diodes Look for a Large Electrolytic Cap Near them or trace wires. 2 Clip Leads and a Replacement Electrolytic Cap can Be Paralled across a Large Questionable Cap with the Same Value or Voltage or in the Ball-park on Capacity. Do this Unplugged. Lo & Behold when You Plug it back in Hum May be Gone. Then Unplug Mount and solder Replacement. I'm Sure You can get a ESR Tester Very affordable & Reasonable if You Shop Ebay-Ham Radio Clubs at the School.

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