NAD electronics (tm)

NAD 3140 repair
NAD 3140 service

NAD 3140 no sound
NAD 3140 one channel dead

 NAD 3140 dead no power
NAD 3140 distorted sound
NAD 3140 thumping
NAD 3140 loud hum

NAD 3140 input jack not working
NAD 3140 low volume
NAD 3140 intermittent audio


This Page helps support the repair of the NAD 3140 120VAC  40 Watt per channel stereo power amplifier, manufactured in 1980.

Contact us for more info.

We are an non-authorized NAD electronic repair center, capable of repairing nearly any issue with this product and incorporating
many manufacturer released service bulletins to improve functionality.

NAD 3140 Stereo amplifier 

Picture of the 40W per channel amplifier, front view.



If the unit has been previously worked on by another facility or has been modified, please inform us when requesting a repair.


All logos and trademarks shown on this page are the property of NAD Corp.

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 Document edited and fine tuned with KompoZer