Hiss with 5G when using SoundDock or similar ONLY when Backlight OFF

I've found this problem on two 30gig 5G iPods and I think it may be present on all.
-If battery is full (completely)
-If backlight is OFF
-iPod connected to a set of speakers via dock connecter AND the speakers control the volume, not the wheel on the iPod
Then, in quiet sections of music there is a noticable hiss from the speakers. This disappears as soon as the backlight goes on. Also not present if the iPod is charging (rather than charged already).
It happens on my Bose SoundDock and Belkin Auto Kit.
Also tried it on Kensington SX 2000 in an Apple Store - Same problem.
As a consequence the Apple store replaced my iPod. Now I've worked out about the battery, I think it is prenent on all 5G iPods, as it started on the replacement iPod as soon as it was fully charged.
Thoughts.....
AMD-PC   Windows XP Pro  

Hmmm, interesting thought Jon,
In my case it would be 50Hz Hum as I'm on the other side on the Atlantic.
Would you get such interference in a car though? I get the same problem with my Belkin Auto kit. This is basically a cig power adaptor with a small preamp in it. It connects to the dock connector and takes the line level audio, and preamps it and sends it to a 3.5mm jack that you connect your audio tape adaptor to. Same issue - hum/hiss with backlight OFF only when unit fully charged.
I've just taken to leaving my iPod not to turn off the screen, as I most use it powered.
Submitted the feedback as you suggested.

Similar Messages

  • When using my ipad air it keeps coming off the page I'm on or app and going back to the home screen. Also when using my ipad the screen will go white with a black apple icon in the middle for about 20 seconds then it makes a ping

    When using my ipad air it keeps coming off the page I'm on or app I am using and going back to the home screen. Also when using my ipad the screen will go white with a black apple icon in the middle for about 20 seconds then it makes a ping sound and goes to the home screen. Could anyone help please. Thank you :-)

    Read here:
    http://help.apple.com/ipad/8/#/iPad9a245e3e

  • On G71-340US: very low volume when using DVD player, but OK when using Windows Media Player.

    Just purchased new laptop G71-340US.  Volume (at full tilt) is decent when using Windows Media Player, but when using DVD player, volume is so low I can't really hear volume on a movie unless room is completely quiet, and I am right in front of laptop. Any suggestions, or is it really this bad?

    I don't have the answer, but I certainly agree. The G71-340us is severly under powered in the audio department. You would think with the extra room in the 17in. chasis they could have put a sound system with a lot more power. Other than that it's a great machine.

  • If i dont use the display when using the GPS and only listen to the voice instructions can that also makes the iphone overheat even if you dont use the display

    because when i use the gps app in my iphone 4s in the car my iphone gets overheat so
    if i dont use the display when using the GPS and only listen to the voice instructions can that also makes the iphone overheat even if you dont use the display
    will that help?

    When you use your GPS does your iPhone get hot enough to shutdown?  The reason I ask is that I have run my GPS app with the screen brightness set to near max connected to power for hours.  My iPhone got hot, but didn't shutdown.

  • My iTunes songs won't drag when using wacom tablet mouse.  When is Apple going to fix this?

    My iTunes songs won't drag when using wacom tablet mouse.  When is Apple going to fix this?  Wacom says apple was made aware of this as long ago as July 2011.

    no one in here knows when Apple is going to fix it.  We are just users like you and have no more access to information than anyone else, including you.

  • TS4268 Does Iphone4 support Facetime Audio/Video using 3G? Or only when using Wifi?

    Does Iphone4 support Facetime Audio/Video using 3G? Or only when using Wifi?

    iPhone 4 does not support FaceTime over cellular, only Wi-Fi.
    You need iPhone 4S or later and also only if the carrier supports it, 

  • HT4356 can i airprint to my airprint printer remotely, with ipad, from another wifi connection or only when i am within my own network?

    can i airprint to my airprint printer remotely, with ipad, from another wifi connection or only when i am within my own network?

    Air print, and the normal hp airprint set up requires that the pad and the printer be on the same wifi net work.  The 'connecting' is done by your router.  That means remote printing wont work with the out of the box stuff.  I think you might find some 3rd party apps that do support remote  printing, but i have not seen any reports from users that found a really good solution.  Print n share reads like it might work, i am sure some users will chime in.

  • The column browser is no longer available when trying to view music in iTunes. I'm only able to use the column browser only when viewing playlists. Why?

    I noticed that after one of the recent updates to iTunes, I am unable to view my music using the column browser type view. Only when I select one of my playlists is the music displayed with the column browser. When I select Music to view the contents of my library, only the album covers are displayed on the right side. The old column browser type display is not available any more - it is grayed out. I do have "show list views for all media" checked in my Preferences / General tab.
    Did Apple screw up or is it me?

    You're welcome.
    tt2

  • Using black ink cartrige only when receiving faxes

    I have an HP 6600 Deskjet printer in my office.  it is used primarily as fax machine.  I go through quite a few color cartridges.  Have found this puzzling since faxes are black and white.  Was told by rep a Office Depot that is was because all color cartridges are being used to make the black ink for faxes.
    Is there any way to set fax option to use black ink cartridge only?  Thank you.

    Hello!
    Welcome to the forums @carperwm 
    I understand you are looking to see if you can use black ink only when printing out faxes, with your Officejet 6600.
    Unfortunately you cannot, as the ink system will continue to work all together to print out the faxes.
    However, you can choose to print in black ink only from your computer, check out these guides for help on changing the settings:
    Changing Print Settings in Mac OS X
    Changing Print Settings in Windows 7
    I hope the information helps, have a great day
    R a i n b o w 7000I work on behalf of HP
    Click the “Kudos Thumbs Up" at the bottom of this post to say
    “Thanks” for helping!
    Click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution!

  • When using online coupon printers only prints in color

    I have researched all over the internet for an answer on how to change the print settings when using an online coupon printer. Nowhere can I find an answer. I have the coupon printer installed on my computer but there is nowhere to change the settings there either.
    My printer settings for my computer are always on grayscale as a default.
    Does anyone know how I can adjust this as I'm getting taken to the bank for the amount of money I'm spending on ink cartridges, slightly defeating the purpose of printing coupons?

    If your printer has the usual options available and prints in color with other applications, I think you will need to contact their support - it seems that this would be a limitation in their software.

  • MBP suddenly shuts down when using the superdriveP shuts down when u

    Randomly my husband:s MBP shuts down when using the super drive. What could be the cause of this?
    Appreciatte your Help

    Yeah, I hope it is just a firmware-problem. AND that Nokia will release an update soon. The version on my phone now is 021.013, and it is from July. A firmware update is long overdue now, especially after all the other problems reported with this phone. And btw I have turned the phone on and off several times without this helping to fix the radio-issue...
    I guess I will have to return the phone soon, if Nokia is unable to release a fixed firmware.

  • HT201401 When using facetime my camera flashes on and off

    When using factime on my iphone 4s the camera starts flashing on and off and then eventually goes black. The only way to get the picture back is to switch to the rear camera and then back to the front camera and then it starts working again and then after a while it starts flashing again!

    I think you're full of manure because it is not widespread.
    It is not all over the news and it is not all over the Internet.
    No one here is an employee of Apple, even if they were, they are not speaking for Apple.
    Your options are:
    Do the basic troubleshooting as outlined in the User's Guide.
    If that fails to resolve you can either take it to Apple for evaluation or simply live with it.
    Making up stories about how some minor issue is widespread does nothing to further your purpose.

  • Lion quites when using excessive CPU, Lion quites when using excessive CPU

    When using my computer and have several programs open and reach around 60-80% cpu usage.. my computer will just quite and boot me to the log on page. This is quite a pain since I lose oeverything I was currently working on. Is this a known issue and is apple looking for a partch?

    When using my computer and have several programs open and reach around 60-80% cpu usage.. my computer will just quite and boot me to the log on page. This is quite a pain since I lose oeverything I was currently working on. Is this a known issue and is apple looking for a partch?

  • -5010F when using internet recovery option, -5010F when using internet recovery option

    I have tried to do clean instal of Lion OS but contantly hit an eror saying "Unable to Download components" then I tried using the internet -5010F when using internet recovery option but I am getting "apple.com/support -5010F error. I am a new bee to Apple and would appreciate any help provided.

    Please see Re: 5010F (3) error while attempting Internet Recovery

  • When using Maps as GPS,  screen keeps going off - iPhone 3G

    When I use maps as a gps, how do I stop the screen from going off?

    But, that makes the auto-lock feature be turned off for all usages. What about if you only want the screen to stay on while you're using Maps? I have to turn off the auto-lock every time and then go back and turn it back on? It seems like this should be a setting in the Maps app instead of having to change the master settings.

Maybe you are looking for

  • Playback controls and Internet Explorer

    Ok - so having made a .mov file and embedded it into my html page. Is there any way of stopping that annoying explorer security option where you have to click to activate/use this control? Thanks in advance

  • Issue in custom component in custom timecard layout-OTL

    Hi, I have created a custom layout based on seeded layout.Added new custom component Dept reference field to the sedded layout. When trying to save the timecard template including dept reference field completed.The saved timecard template is dropping

  • How can I remove my email address from the lock screen?

    How do I remove my email address from the lock screen? My dad bought me a new laptop after mine was stolen from my house on New Year's Eve. I'm a little tighter on my security now and when I turn on my laptop the lock screen shows me my name and my e

  • Disc Images to FCP?

    If I have a disc image of a movie, can I create a Quicktime movie from that to edit in FCP? Thanks.

  • Multiple JRE's running on end user computer IE6

    Hi - First time poster... I was reading the other topic on the Citrix server and JRE's, so I wanted to ask if it was the same for end user computers. We have an upgrade that will be performed that will use JRE 1.4.2_06. Currently, we have 1.4.1_05 on