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Yamaha CR840 problems; when adjusting volume there's a lot…

Customer Question
Yamaha CR840 problems; when...

Yamaha CR840 problems; when adjusting volume there's a lot of static and often one of the speakers there is less volume. Also, one of the speakers always seems to have background static; very faint but constant.

Technician's Assistant: When did this audio problem start with your CR840?

Many years ago. i have not used the system in a while. just pulled out for the holidays and thought i'd try to resolve these issues so that we'll be able to have some music

Technician's Assistant: Is the audio working with headphones or external speakers?

External speakers

Submitted: 7 months ago.Category: Electronic Musical Instruments
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Answered in 33 minutes by:
11/27/2017
Electronic Musical Instrument Expert: Ron Winston, Owner of Winston Electronics, Servicing music electronics for over 50 years replied 7 months ago
Ron Winston
Ron Winston, Owner of Winston Electronics, Servicing music electronics for over 50 years
Category: Electronic Musical Instruments
Satisfied Customers: 486
Experience: Factory Certified Technician
Verified

Hello my name is ***** ***** I am a Yamaha certified technician. The problem you are having is common for older units of any brand. The most common cause is dirty/tarnished controls or switches. I would start by cleaning all the controls and switches with spray contact cleaner. )not wd-40) you will have to open the unit up and spray in from the back. Let me know what you find?

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Customer reply replied 7 months ago
wd-40 makes a contact cleaner. why not them?
Electronic Musical Instrument Expert: Ron Winston, Owner of Winston Electronics, Servicing music electronics for over 50 years replied 7 months ago

I am referring to the actual wd-40 not there contact cleaner.

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Electronic Musical Instrument Expert: Ron Winston, Owner of Winston Electronics, Servicing music electronics for over 50 years replied 7 months ago

Did you have time to try cleaning those controls yet?

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