View Full Version : Does your DX7 buzz when its on, i figured out y
hello, while experimenting with modifying my DX7 i found out that annoying buzz is actually coming from the speaker, not a chip or transformer. (disclaimer: use at your own risk. I'm sure it will void your warranty) my simple solution was a piece of electrical tape.
http://helifreak.com/attachment.php?attachmentid=29214&stc=1&d=1193198262
My Quik Fix
http://helifreak.com/attachment.php?attachmentid=29215&stc=1&d=1193198262
it quiets it so you don't hear the buzz, but still hear all the warning beeps like from you leaving a flight mode switch on during power up of the radio.
Hope this helps ya :thumbup:
joehelicopter
10-24-2007, 01:59 PM
hello, while experimenting with modifying my DX7 i found out that annoying buzz is actually coming from the speaker, not a chip or transformer. (disclaimer: use at your own risk. I'm sure it will void your warranty) my simple solution was a piece of electrical tape.
http://helifreak.com/attachment.php?attachmentid=29214&stc=1&d=1193198262
My Quik Fix
http://helifreak.com/attachment.php?attachmentid=29215&stc=1&d=1193198262
it quiets it so you don't hear the buzz, but still hear all the warning beeps like from you leaving a flight mode switch on during power up of the radio.
Hope this helps ya :thumbup:
I BUZZ WHEN MY DX7 IS ON..............:nanabobo:smokin:
kamtsa
10-24-2007, 07:20 PM
I BUZZ WHEN MY DX7 IS ON..............:nanabobo:smokin:
Mine too but not in Simulator mode (when the transmitter is off).
Kam
gadge
12-15-2007, 02:00 PM
i took this mod a step further. take a screw with a thread big enough to fit the hole on the speaker and slowly screw it in until the beep reaches your desired volume. if you screw it all the way very tightly you will probably damage the speaker. i screwed it in until i could hardly hear it then screwed it out a bit and its nice and quiet now.
kamtsa
12-16-2007, 12:21 AM
Another solution that may work (though I did not try it yet) is to connect back to back parallel diodes in series to the speaker. Small signal will be cut off by the diodes (need 0.5V or so to start conducting) while the loud signal will pass through with little attenuation.
Anybody wants to comment on this approach?
Kam