Reciever get louder in one channel then static then goes back to normal

http://www.buy-remote-control.com/

send me your e-mail at [email protected]. I have a pdf in English

electric pulse. Make sure you are grounded to the same source you recieve audio from. hum eliminator switch from radio shack

Red left to Red left speaker
Black left to Black left speaker

then repeat for right speaker

turn on amp play somthing quite to start, check all is working. To check speakers are in phase play a bit louder and stand exactly in middle, bass should be defined and central, it helps to close eyes and listen. If not central and defined change over Red and Black on one side only then listen again with the same test.

Start flat with eq section adjust as you like when listening to something you know and like.

After all is working ok then make it louder.

Sorted!

I once had the same problem with a philips deck, except that both meters were twitching and both channels were distorted.

And guess what - it started happening when i reassembled it after i oiled the motor axis as it was a bit noisy.

No, that doesn't mean this had anything to do with the motor, but i had to disassemble the deck once more, i moved the wires and connectors a bit and the meters and outputs returned to normal functioning, so my guess is that there is a bad connection somewhere.

Try disconnecting the connectors inside the deck, see if the contact pins are dirty or oxydized, if so, clean them and reconnect - this might help.

Also check for any broken or shorted wires, broken insulation on wires and bad solder contacts.

I don't know if this will help, it sure did in my case, but i guess it's worth trying.

good luck

3rq8 (Triarcuate)

Hi,\

Its an issue with the tone switch activate and reactivate it to get back to normal volume on both speakers, and would suggest you to clean the switch with WD40 and it should resolve the issue

I don't know the design of this reciever, and do not have any schematics or engineering information to know the design.

This is a general comment:
In many of these recievers at this level they don't have very good muting designed in to their system. When switching sources, the audio is not being muted.

This is a theory of why the noise is not on the main speakers, but present on the sub woofer. Because the switching noise is of very low frequency, this is why the sub woofer is making noise. The main speakers lack the low frequency sensitivity that the sub woofer has. This is one way of looking at it. It is also possible that there is muting for the main speakers, and none for the sub woofer.

If the reciever does have muting in to its design that is supposed to mute when switching modes, then there is an obvious defect. When a source is switched, or a mode is changed, the output would mute for the duration of the switching interval. This is usually for a period of about 100 ms.

Your best bet is to contact the service rep for nakamichi and ask the question there.

I have serviced many recievers made by other manufactures. The higher end models all had muting in their design. This way, the output was muted when the source was changed, and when the reciever was turned off or on.


Jerry G.

This noise is normal with the cable box unless you set the cable box on HDMI sound

The contacts in the switch are probably oxidized or warn out. More than likely it is oxidized.

You can get some switch and control cleaner from most any electronics poarts supplier.

You have to open the reciever to get access to the noisy switch. You would then spray a little of this cleaner in to the switch. Then work the switch back and forth rapidly to clean it.

If this does not work, then the switch would have to be changed.

If you don't feel confortable to do this procedure, you can bring the receiver to a service shop. They would be doing this type of service routinely.


Jerry G.

You may be confusing +/- power supply rail fuses with left and right speaker fuses.