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YOUR RESEARCHAnyone have a "touchy" volume control?
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just dirty/oxidized contacts
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If the issue is just dirty/oxidized contacts, this _might_ be sufficient without having to perform surgery on the radio.
Leading evidence: 'just dirty/oxidized contacts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'just dirty/oxidized contacts' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Run =schizophrenic volume' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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I have a BE6634 radio/nav in my 05 TTS and the volume is all over the place; touch it just a bit and it goes from 40db to 140 in one click and vice-versa.
I've researched for hours and found nothing much. I've learned what a potentiometer is......that was interesting. That would be a physical failure..as that is the physical back part of the volume dial riding along essentially a circuit. It's not that....b/c the volume works fine with the vehicle off.
So it's programming. I turned the "Audio Pilot" off and it improves it but in no way resolves it.
1. this ever happen to anyone?
2. if the "audio pilot" is off (or even if it's left on really) why would the stereo care if the vehicle is running or not?
So essentially: vehicle off =works perfect, turn ignition on=schizophrenic
At a loss.
Thanks
Joe
I think it probably had a rotary encoder rather a potentiometer. If it turns 360 degrees, it is a rotary encoder. You can clean it although how you get at it is something I can't help you with. There's a guide that shows how to clean them here:
http://theartofsound.net/forum/showt...volume-control
You might also want to look at
http://beckerautosound.com/porsche/2865218
If there's any gap at all between the shaft and the faceplate with the **** removed, you could try shooting some electrical contact cleaner in while turning the **** back and forth. If the issue is just dirty/oxidized contacts, this _might_ be sufficient without having to perform surgery on the radio.
This is the case with nearly all of the rotary controls in my wife's Murano, and it's maddening - turning the fan down slightly often as not results in turning it up some random amount. It's really frustrating, but not to the point that I've bothered trying to fix it yet.
Lazy has a lot of inertia, it turns out.
Oh, crap, I missed that small but seemingly important clause: "b/c the volume works fine with the vehicle off."
Reading is hard.
Wow, what a mind screw.
Is the issue present in any key positions when the car is off? Since the 996 radio will work with no key at all, is the radio consistently normal when working with no key vs. when the key is in the "on" position but acts up when the engine is started?
What's the voltage look like when the engine is running? Maybe the voltage regulator is failing and you're putting too much (or maybe too little?) power through the system when the car is running, and the volume circuit is especially sensitive to the incorrect voltage...
That wasn't really clear, sorry. I meant to ask if the volume control has "hard stops" at each end, or is it one that can just spin and spin. If it is the former, then it is a potentiometer. If it is the latter, it is a rotary encoder.
Not sure what to say about it working with the ignition off. I'd still try to clean it though.
How do I measure that? I have a digital multimeter that I can't use to save my life.
-car off no key= works perfect
-car ignition one click (not turning engine over) =works perfect
-engine running=schizophrenic volume
-there is a speed and ambient noise sensitive software called "Audio Pilot" with this unit. Turning this off helps but in no way resolves the issue.
schizophrenic volume is described as barley touch **** and volume jumps 100db either way up or down, unpredictable. That's not even one click of the volume **** and it jumps like that. Then in the next moment one can spin the same **** 360 degrees and it ignores you.
Thanks again
Joe
This is a source reference. Confirm exact model applicability in the original material.
