• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

DISTORTION BOTH CHANNELS NAD MODEL 200

J

Joan Biel

New Member
First of all I wanted to thank the work done by all the members of the website, it really is very helpful for people like me who are just starting out in this world.

I hope someone can help me with my model 200 NAD amplifier.

The amplifier has distortion in the two channels, I changed 3 transistors 2sc1400 of the power board but it remains the same. I have seen that there is a 2sD438 with black legs.

Can anyone guide me a little where I should keep looking?

Thank you so much!

Best regards.
 
Register to hide this ad
You could try the simple easiest things first like look for cold solder joints on the circuit board on or around the power supply and the output transistors.
 
With the help of the coupler switch behind the amplifier, you could separate the pre-amplifier from the power amplifier. That way, you would see if the distortion takes its source in the pre-amplifier or the power amplifier section. You would need a second amplifier for testing.
 
Thanks for the replies, I tried the device again yesterday, adjusted it and now it works fine :banana:. It turned out that the problem was with my PC :(and not the amp.

Best regards Joan Biel
 
You must log in or register to reply here.
Back
Top Bottom