Hardware :: Magsafe Adapter Hissing Noise
Jan 26, 2010I have been noticing lately that there is a slight hissing noise on the magsafe adapter particularly when its plugged in to MBP in a quiet room.
View 4 RepliesI have been noticing lately that there is a slight hissing noise on the magsafe adapter particularly when its plugged in to MBP in a quiet room.
View 4 RepliesI am trying to hook up the digital audio output on my cable box to the digital in on my dual 2.0 G5 running 10.4.9, 1 gig RAM. I have HDMI and component video out to monitor, but I use JBL creature speakers and sub for audio.
I have the propper cables and routing, sounds prefs set to digital in, and line out, to go to JBL creatures and first I get no sound at all. If I start AudioHijack and use same input and output settings all I can get is a hissing/clicking sort of sound. Same with using Soundsource and LineIn.
Audio MIDI Setup only shows or giveds me Built-in Audio for selections under system settings and properties for. Ausio Input and output show Master stream grayed out and I selected digital in and Line out for my sources and no change. Both ar set to 441000.0 Hz 2ch-24bit as well.
Information:
Dual 2.0 G5
Mac OS X (10.4.9)
I've got the new i5 mbp which has the right angle magsafe plug. Can I use any older magsafe adapter on the machine?I need 2 more (one for work and one for home), i'm too lazy to take it out of the bag, or I always forget to put it back when I need it.
View 2 Replies View RelatedI just got my 2.0ghz Alu Macbook a few days ago and everything works perfectly well, the thing is that after day one the magsafe started to emit a low pitched electrical whistling noise. It tends to be there a few minutes after booting into the OS and then it turns down to almost unhearable, but I experienced it returning after a few hours of use and then disappearing again. If I move close to the escape key I can hear a crackling noise emitting from the magsafe.I'm not trying to be overly nitpicky or anything but I read somewhere that if it's doing that it would be a faulty Mag-Safe board or something.
Does any one you guys know anything about this? I have the 14 days to return it as I bought it online from the Apple Store so if it's a faulty part that might die/break/ cause problems later I might have to.
I have both a MacBook (personal) and MacBook Pro (work; provided by NASA). The MacBook has a 60W Magsafe Power Adapter; the MacBook Pro has a 75W power adapter. I am going on international travel for several weeks, do I need to bring both adapters with me? Would there be any problems caused by using a higher-power (75W) power adapter to charge a MacBook or vice versa?
View 7 Replies View RelatedI wonder if somebody has a similar problem. MacBook pro 2008 (15", 2.2 GHz, 2 GB RAM) has the Magsafe adapter light off when fully charged. When disconnected-reconnected, it starts glowing green again.
History: about 6 months ago, the screen wiring and video card were replaced by Apple. The battery was replaced a long time ago. Symptoms after card replacement (not necessarily related to it) included spontaneous wake from sleep when the lid was closed, although the "wake from sleep at Ethernet activity" was disabled. In the Apple store they reset the power management unit and the unwanted wake up stopped. The computer is always plugged into the wall outlet when at home but travels often during the day and is on battery power then.
Two other laptops (2007 and 2009) always have the adapter green light on when the battery is fully charged. The "abnormal" one now has a replacement adapter plugged in and for several days the light was on when charged. Today it turned off again. Apple does not list that option and only vaguely states that when fully charged, the adapter light is green. Anything to do with the power port contacts? If yes, how can one diagnose or repair it? Will Apple hardware test do it? Or is this within normal behavior? Also, I am not sure whether this is serious or not since the battery charges...
I did not find any answers on the web, so I am posting it here.
I saw over the last couple days some type of rubber/plastic (maybe even neoprene?) case/holder that you put the MBP magsafe adapter in and then you could wind the cord around it. I think it was orange in color. Does anyone know what this item is called? Added after about 20 minutes of searching the web: [URL]
View 4 Replies View Relatedive noticed that everytime i charge my macbook the block that connects to the wall gets very hot is this something common?
View 2 Replies View RelatedI have a Macbook that is nearly three years old, and I'm on my second power cord. The first time I had trouble, the casing had melted off right next to the MagSafe part that plugs into the computer. I got another, and now it seems it won't charge at all. There is no apparent physical damage. At first, I could do a little jiggery pokery and if I got it in just the right place, it would charge. It seems that now even that is gone. I'm wondering if: 1. There is some obvious fix that I am missing, or 2. Where I can get an affordable replacement. I realised this makes it sound as if my current cord is brand new, that is not the case. It is about a year old.
View 1 Replies View RelatedIt especially happens when I am watching videos. I bought a cooling pad to help with how hot the macbook gets, but the magsafe adapter is burning hot to the touch. It's making me nervous. Is this normal? Can it be replaced? My macbook was only purchased
Info:
MacBook Pro, Mac OS X (10.7.3), 15 inch
I just bought MacBook Air, because my MacBook Pro died... I need two magsafe power adapters (for work and home) and I was wondering whether I could use my old ones from my MacBook Pro? The watt is way off, though (85 W versus 45W).
Info:
MacBook Air (13-INCH, MID 2011), Mac OS X (10.7.4)
So there has been a kink in my magsafe adapter since I first got it. Today the cord just spit, has this happened to anyone else?
View 1 Replies View Relatedhas anyone tried a 3rd party power adapter? i have a MB alum and correct me if i'm wrong, but it needs 60w - right? is there a downside to this?
View 5 Replies View RelatedMy Magsafe adapter for my Macbook Pro all of a sudden stopped working. It's no longer charging my MBP. I've noticed usually when charging my MBP if i listen to the adapter it will give the sound like very small motor or gears are running. Now it just sounds like a long beeping sound. I was wondering if this is some known defect, because I made an appointment with the Genius bar for tomorrow and from what I have heard Apple is known for replacing defected parts even if they are out of warranty.
View 1 Replies View RelatedI had my original MBP charger replaced a while ago because the magsafe adapter light was not working. (but it charged the computer fine, weirdly enough) Then, about a month ago, the light on that one went out too. The apple store replaced it with one of the new MBA chargers style. That one worked for about a day, and now intermittently goes off. What is wrong here?
View 4 Replies View RelatedI was very surprised and scared at the same time when I see my magsafe power cable frayed badly at one of the connections to the magsafe unit. I was very lucky to notice before sleeping, or else I would have ended up in a fire at my home. I was planning keep MBP for charging and go to sleep when I noticed this. But luckily I smelled burning and noticed that the frayed had part started blackening due to burning. I immediately disconnected it. See the pic below.
I use the charger as it is expected. Remove it from the solid plug and not cable. Actually I use all apple products with care and respect and I love them. But this incident broke my heart. I have so many presentations to give this week, how I am going to survive without my laptop is a big question. I just saw many people have had such problems, and I am hoping Apple customer care helps me out tomorrow morning. Only 14 minutes left on charging before my MBP dies. Apple help.
Strange thing is my power charger was just replaced 6 months ago for a different problem(it just stopped charging without any reason or visible damage, no fall nothing). And now after 6 months the new charger gave up with a frayed cable. I work as a Teaching Assistant and have so many presentations every week, this is a unnecessary trouble for me.
Info:
Mac book Pro, Mac OS X (10.6.4)
Does the Apple MagSafe Airline Adapter charge your macbook pro in the car.
Info:
MacBook
Pro, operationg sistem is lion
The line just get ripped or teared even when carefully wrapped around the plastic corners. Apple won't replace it for it is considered "physical" issue. Yeah, you got it right, Apple. It is a physical design flaw! No wonder so many websites selling third-party Adapters. I know Apple's products are nice and beautiful, but they should not be encased in glass container to be admired! They are supposed to be used in the REAL WORLD! Come on, Apple. Fix your badly designed products, already!
Info:
MacBook Air, Mac OS X (10.7.2)
My MacBook Air 2011 can't be charged by MagSafe 45W power adapter after I charge it with 60W adapter, It happen few time, check the the system status, shows the AC charger not connected, I tried to plug and unplug serveral times, and keep the mag connector pluged for awhile, there's no light at all
Info:MacBook Air, Mac OS X (10.7.3)
I recently bought a new charger called the 60W MagSafe Power Adapter, for some reason for the first time when I plug it into my Leopard Macbook, it works. But when I take it out and plug it back in, it doesn't seem to charge. I would have to remove my battery and place it in again for the charger to charge my macbook. I don't think the charger is the problem because it charges on my macbook Tiger fine.
View 3 Replies View RelatedI have found the magnetic end on ebay to repair my power cord ( one of the pins doesnt spring out anymore) Does anyone know how to get the power brick apart without wrecking it?
View 2 Replies View Relatedis this covered by apple care? Do i have to get the 60W for my alum macbook or some people are saying that the 85w will work fine also.
View 7 Replies View RelatedThis may seem like a really simple question to someone who is familiar with Macs, but I am brand new. When I hibernated my old Vista laptop, I always unplugged the power adapter (it go too hot if I left it plugged in overnight). With the Macbook (Macbook Pro 13, mid-2009), should you leave the Magsafe Adapter plugged in, or is it OK to put the Macbook into sleep mode overnight, and leave the charger plugged in? I don't want to deplete the battery (that flashing LED makes me wonder what kind of battery draw there is in sleep) by putting my laptop into sleep mode for eight or so hours, and not have the charger plugged in.
View 5 Replies View RelatedFirstly i have a MacBook 10.4.11 that is somewhere between 2 and 3 years old. I have had no problems with the Mac up until yesterday. Yesterday i was charging my Mac and everything was fine but i noticed that the MagSafe Adapter was lit up Green, even when unplugged from my Mac. I shrugged it off until this morning when i realised that when i unplug my adapter the Mac just turns off and won't turn back on until i plug the adapter back in. I have seen different threads about it being a battery problem or a charger problem but i am not sure where to start as most of the threads say that their Battery Icon on the Mac screen has a black "X" through it. Mine just has the Forks in the battery icon and where it would have a Time or % of what is left in the Battery, it just has a (Calculating...) and when i click to see how much it has charged, it says 0%
I also downloaded Coconut Battery and here is what it says:
Current Battery Charge: 0 mAh
Maximum Battery Charge : 5093 mAh
0%
Current Battery Capacity: 5093 mAh
Original Battery Capacity: 5020 mAg
100%
My MacBook Pro 13" is 1 month old, but since the first week of use I noticed yellow stains on the corners of the MagSafe Power Adaper! Is this normal?
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
I'm traveling soon, so I'm wondering if it'll work in another country. You know, the voltage and the plug.
Info:
MacBook Pro, Mac OS X (10.7.3)
My battery doesn't last much more than a few hours during continuous web streaming, 2.) That my battery stopped charging to 100% two days ago..and 3.) Last night when I went to unplug it, the power adapter was very hot to the touch. Out of curiosity, I went and used my laser thermometer to get a temp reading of 120-128 degrees F.
Info:
MacBook Pro, Mac OS X (10.7.4)
so i freaked out when i tried to plug my magbook in and the magsafe adapter sparked! ya it was wierd. like when it touched the power port it sparked and i pulled it back immediatly.
I was wondering if the Magsafe power adapter that comes with the macbook pro has a built in surge protector?
View 4 Replies View RelatedFunny that most complaints about this issue are from people running ITunes through their PC's. I have the same problem through ITunes on my Mac. Play music through VLC player and it plays perfectly!!
Info:
MacBook Pro, Mac OS X (10.6.8)