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Modding Futaba 9C Super Timer Volume

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Old 01-20-2007, 10:09 AM
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bmizes
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Default Modding Futaba 9C Super Timer Volume

I know that the time volume beeps are not adjustable via programming in the 9C Super (or any Futaba radio other than the 14mhz). My hearing is excellent, and there is a definite flaw in this particular feature that will hopefully be addressed in the future either with new programming or with a different beeper. For those of us with current Futaba radios, does anyone know of a mod that would work to fix this problem? Is there a different beeper that could be soldered on or some other fix here that might solve the problem? I know there are lots of electrical engineers on these forums, so I'm sure there is a relatively simple fix for this (although it might void one's warranty). If anyone has any suggestions, I'd like to hear them.

Thanks.

Barry
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Old 01-20-2007, 11:40 AM
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Default RE: Modding Futaba 9C Super Timer Volume

I know there are lots of electrical engineers on these forums, so I'm sure there is a relatively simple fix for this (although it might void one's warranty). If anyone has any suggestions, I'd like to hear them.
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Old 01-21-2007, 10:09 AM
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Default RE: Modding Futaba 9C Super Timer Volume

On my 8U, I drilled a 1/8" diameter hole in the faceplate, glued the soundmaker to the faceplate just behind the hole, and wired in extensions from the board to the soundmaker.

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Old 01-21-2007, 11:43 AM
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Default RE: Modding Futaba 9C Super Timer Volume

I agree the volume of the 9C is too quiet. I was adjusting trims yesterday and couldn't hear the beep. Never was a problem with my 8U. I'll take it apart and see what can be done.
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Old 01-21-2007, 04:05 PM
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Default RE: Modding Futaba 9C Super Timer Volume

bmizes,
My 8UAP has four small holes just behind the antenna. I wonder if the 9C has this. My 9C won't be here until Tuesday. I'll have to check on this.

Dave
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Old 01-21-2007, 04:45 PM
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Default RE: Modding Futaba 9C Super Timer Volume

Dave,

The 9C does not have any holes near the antenna, or anywhere for that matter. That is probably the problem - the sound has nowhere to escape.
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Old 01-22-2007, 12:39 PM
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Default RE: Modding Futaba 9C Super Timer Volume

Hi All,
New 9C owner here.
This is one of the few "quibbles" I have with the "9Charlie". I opened up the case, it appears that the beeper thingy is on the lower main board, I would have turned over the board, but the knob for the "dial n' key" has to come off and I didn't want to pull up too hard on the board to pop it off (chicken). With the back off the volume of the beeper is still way too low so a component replacement may be the only real fix, I doubt that drilling holes will be of much help based on what I heard with the back off.
Maybe we will hear from someone with more experience with working inside the 9C, and who isn't afraid to blow up his nice new toy.
Regards to All,
Pete
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Old 01-22-2007, 09:16 PM
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Default RE: Modding Futaba 9C Super Timer Volume

I simply drilled a 3mm hole in the TX case to let the sound out. Simple and fast. BTW....I don't fly in the rain.

Dave.
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Old 01-22-2007, 10:28 PM
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Default RE: Modding Futaba 9C Super Timer Volume

Dave,

Where did you drill the hole? Could you post a pic of the Tx with the hole drilled in it?

Thanks.

Barry
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