Question about Bose SoundDock Portable Music Pack Docking Station for iPod Black (309220-1100)

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I have had the Bose Portable Sounddock Station and the 1st Gen iphone for a little over 3 years, took it all over Europe and played it 24/7 almost the ENTIRE time I travelled with it without a single problem! day last month I woke up and my iphone was dead in the Sounddock station, so I figured the battery finally died in my 2G, so I put my name on the list for the new iphone 4. I have now been using the iphone 4 on my docking station for almost a month now with no problems. But now yesterday, I'm getting distorted clicking sounds from it while I play music. I have tried a few troubleshooting techniques, and at first I thought maybe it wasn't making good contact with the new iphone with the new rubber case on the iphone, so I took the case off....still does it. It will do it at any volume level, although I'm still trying to determine if pushing down with slight pressure on the iphone will stop this occasional popping sound, but no clear opinion on this yet. Another point, when I removed it from the docking station earlier today, the iphone was unusually hot where the battery is located. My concern is, maybe my first iphone battery didn't die, maybe the Bose killed it? Is this possible? I don't really relish the idea of it killing my new iphone and has it already caused damage with this new popping sound do you think? Sorry for the long winded explanation, but I figured all the facts would make it easier to diagnose. Thanks,

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Your explanation helped me to analyze the issue pretty well. When the iPhone is being used excessively the iPhone case tends to get hotter. Sometimes the iPhone also gets hot due to the casing being used. The issue with your iPhone may or may not be due to your Bose Sounddock Station.
The interference/noise you are getting while using Soundock with iPhone is due to Phone's network Interference with the music. To hear without interference put the iPhone in Airplane Mode and then you'll be able to hear the music without any interference or noise.

Hope this resolves the issue, else post back for assistance.


Posted on Jul 15, 2010

  • airforce1eng
    airforce1eng Jul 15, 2010


    I probably should have clarified things even better for you, as I had a feeling you would suggest the "Network interference" issue. Having the Sounddocking station for over 3 years, I'm very well aware of what the networking interference sounds like. In fact, I count myself rather fortunate, as the network interference I get is rather minimal compared to other folks. Network interference is more like a repeatative blurping noise that follows a random set of tones grouped together. I am aware of the sucseptable noise with keeping the iphone in normal transmission mode while in the docking station and I've disabled it to verify the problem continues.

    The noise I'm getting is definitely more an actual "break" in the music, causing a destinctive break in the song and the break is consideraly louder than any kind of interference, with a distinctive "crackling" sound, consistent with a voltage induced peak to peak spike or runaway sine wave. Unfortunately it's not a break long enough to cause the ipod portion to shut off (like when you unplug it from the docking station manually or from a headset). That would be too easy.

    I am trying to duplicate the noise by holding the base of the Bose and gently wiggling the iphone without much success in duplicating. As well as applying gentle but consistent pressure on the top of the iphone while in the docking station, to see if it suddenly stops, has proven not to be producible on each occasion. There are times when it will silence when I apply pressure, then there are times when it will not.

    I'm in the Electronics field myself and very competent in Consumer Electronics, so I was hoping to get some expert advice on this issue on a deeper level that may help me understand if I may need to send this Bose in for service. Your suggestion on it being Network Interference is something I expect my Cell phone carrier to come up with, not an expert on Consumer Electronics. Please don't take offense, but your suggestion is somewhat kneejerk.

    If you are more experienced in the connections of this kind of equipment, the stability of the battery upon a possible short circuit across two voltage pins of the Bose, or able to provide additional "real" technical advice, I would be very much appreciative.



  • Daniel Scott
    Daniel Scott Jul 17, 2010

    Hi David,

    I didn't give much of technical stuff as I was unaware of your expertise in this field. This kind of noise usually happens due to increase in capacitance value of a component beyond its threshold value. This component (transistor,IC,etc) will be present in voice processing or amplifying circuit of the Bose SoundDock Station.

    And other thing you are correct about is that this may also happen due to an internal short circuit between the Bose Dock's Pins. I wont suggest you to mess with Bose SoundDock Station instead you should ask Bose guys to service it. Before, going to Bose service center I'll suggest you to check your SoundDock with an ipod iPhone from one of your friend.

    Please let me know in case of any concerns or query.





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