speaker buzzing?

jackalope · Post by **jackalope** » Mon Nov 17, 2014 5:03 pm

Hey guys so I'm working on my King Tiger and when ever I change the throttle from stop to forward ir reverse the speaker makes this horrible buzz sound. It did it when I first installed the 4.1 gearboxes and I found the little diodes had come unsoldered from the one motor so I fixed it but the buzz is back and the diodes are all soldered to the motors. If I un plug either motor from the board if doesn't do it only when they're both plugged in. Any ideas ca use I'm kinda stumped? I'm thinking of getting a noise filter like you'd put in an old car to stop it's radio from whining or should I replace tge diodes on both motors?

ALPHA · Post by **ALPHA** » Mon Nov 17, 2014 5:07 pm

jackalope wrote:Hey guys so I'm working on my King Tiger and when ever I change the throttle from stop to forward ir reverse the speaker makes this horrible buzz sound. It did it when I first installed the 4.1 gearboxes and I found the little diodes had come unsoldered from the one motor so I fixed it but the buzz is back and the diodes are all soldered to the motors. If I un plug either motor from the board if doesn't do it only when they're both plugged in. Any ideas ca use I'm kinda stumped? I'm thinking of getting a noise filter like you'd put in an old car to stop it's radio from whining or should I replace tge diodes on both motors?

Try charging your battery Jack...or check the batteries in the TX... sometimes a weak signal will cause the speaker to do funky things

ALPHA

jackalope · Post by **jackalope** » Mon Nov 17, 2014 8:36 pm

Freshly charged battery and it does it with either one I try.

Post by **dgsselkirk** » Mon Nov 17, 2014 8:41 pm

Try moving your trims on the radio slightly

jackalope · Post by **jackalope** » Mon Nov 17, 2014 10:51 pm

dgsselkirk wrote:Try moving your trims on the radio slightly

Hmmmmm. Worth a try I'll see what happens when I get home from work.

ALPHA · Post by **ALPHA** » Tue Nov 18, 2014 2:35 am

So where are you now Jack? you must have completed these two troubleshoots ....the next would be to check your speaker wire

ALPHA

Post by **dgsselkirk** » Tue Nov 18, 2014 4:24 am

I had this issue with my Sherman. It would sort pitch and squeal when I moved the turret or hit drive. MichaelC suggested I move my right stick trim slightly and poof! it went away. He is such a smart boy...

ALPHA · Post by **ALPHA** » Tue Nov 18, 2014 4:37 am

dgsselkirk wrote:I had this issue with my Sherman. It would sort pitch and squeal when I moved the turret or hit drive. MichaelC suggested I move my right stick trim slightly and poof! it went away. He is such a smart boy...

I actually forgot about how the trim affects the sound...glad you brought that one up ....because there is a point where the trim activates something in the RX ..puts in into micro drive or something ...leaving a mur mur of a sound

ALPHA

MichaelC · Post by **MichaelC** » Tue Nov 18, 2014 5:18 am

dgsselkirk wrote:I had this issue with my Sherman. It would sort pitch and squeal when I moved the turret or hit drive. MichaelC suggested I move my right stick trim slightly and poof! it went away. He is such a smart boy...

Did someone say smart boy ?....... Is the sound part of the sound effect or is it interference ? Sounds like interference to me, pun intended.

MichaelC.

jackalope · Post by **jackalope** » Tue Nov 18, 2014 11:00 am

Sorry busy day yesterday, went to work at 5am didn't get off till 4pm then it was drive home get a shower and be at the Dr's by 6pm didn't get out of there till almost 7 got home, ate dinner and went to bed. No tank time yesterday. Today should be a better day at work if so I'll check out the trim tabs.

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speaker buzzing?

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