Macbook (2010) to HDTV - not working

First of all I'd like to apologise since I know how many posts there are on TV connection troubles, but I'm finding it difficult to find a solution.
I bought a MiniDisplay port to HDMI adapter and then connected it to my HDTV via a HDMI cable, but all that happens when I go on the correct channel of my TV is the macbook screen flashes blue for a second and then nothing happens - the TV is still blank.
Maybe I'm missing something obvious since I'm new to Macs and I only got this one yesterday, but it would be greatly appreciated if someone could perhaps lend some insight to my predicament

I have a similar problem with a 37" Samsung LCD HDTV model number LNT3753HX.
I wrote a post about it...If you know anything that you can tell me I would be extremely extremely grateful. I have to fix it before Sunday morning.

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Macbook 6,1 charger not working

Macbook 6,1 charger not working A1344
The Macbook is a 6,1 purchased in 2010.
My friend has had a go at the shooting suggestions but nothing seems out of sorts beyond it not working properly.
No damage or signs of misuse.
Ordinarily I wouldn't have thought a warranty would still apply but this paragraph on Apple support page made me wonder.
--- Whether your product is in or out of warranty, you can take your adapter to an Apple Authorized Service Provider or Apple Retail Store for evaluation and replacement if necessary. Pending the results of the evaluation, you may or may not be eligible for a replacement adapter free of charge. Signs of accidental damage would negate any coverage. Be sure to bring in the computer used with the adapter; it is required to process potential adapter replacements.---
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http://support.apple.com/kb/TS1713
thanks
Jason

all sorted now - new charger given
turns out a bit of intelligent discussion yielded results
so .. if you have any problem with an older mac take it into an Apple Store
theres an excellent chance they will fix and replace even when the machine is out of warranty

Ive just upgraded my late 2009 macbook, and things are not working properly. First of all, when I started the computer first time after installing Mountain Lion, some message advised me that some files were impossible to install.

Ive just upgraded my late 2009 macbook, and things are not working properly. First of all, when I started the computer first time after installing Mountain Lion, some message advised me that some files were impossible to install. Once I wrote my password, and for now on, everytime I start the session, another window advise me that "Java SE 6" is missing, due that, the computer can't run some "CS5Service Manager". If I try to install it, the download ends with an error. If finally, you skip the istallation, you arrive to the dock, but the menu bar at the top of the screen doesn't show up.
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We're sorry.
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Sigh.

I have a Serial Number which worked fine on my MacBook Pro but does not work on my desktop PC (Win 7). What is the problem?

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You haven't identified the version so I can't tell if offering you contact options for Adobe Support will be of use to you. But they will likely be your only hope of getting resolution unless you just happen to be using the wrong number as the serial number.
For the link below click the Still Need Help? option in the blue area at the bottom and choose the chat option...
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Macbook early 2009 camera not working

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Gary Leung wrote:
I have the same problem as this person had with iSight. It happened 2 times, once in December 09 and once Feb 2010. Both times I was told to reset the SMC and the procedure worked. But I would like your opinion whether something insidiously wrong with the SMC or other hardwares in my MacBook 13-inch alum late 2008 model. Or do I need to re-install the OS, which I upgraded it from 10.5 to Snow leopard (10.6) back in Sept. 2009. Thanks.
Hello, Gary.
Twice since Sep 2009 would not be a problem to me, but if you only used it twice (or a few times), I suppose I might re-think that.
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If you experience problems in addition to iSight, http://support.apple.com/kb/TS1388 may help you.
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EZ Jim
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LED Cinema Display G4 PowerBook 1.67GHz (10.4.11) iBookSE 366MHz (10.3.9) External iSight

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Greetings obomb2000,
Thank you for visiting Apple Support Communities.
It sounds like your MacBook Air is not outputting video to your TVs using an HDMI adapter, and you've done a good job of isolating this behavior to either the adapter or laptop.
Here are a few additional steps you can try on your MacBook Air before trying another adapter:
Reset the system
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From:
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
All the best,
Jeremy

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Dear All,
My macbook pro (Retina, 13-inch, Late 2013) is not working, no light is appearing... What can i do now, Please any one help me.

Hello,
Please read this to troubleshoot your Mac or it's charger :
Apple Portables: Troubleshooting MagSafe adapters - Apple Support
If you are experiencing a hardware issue you better contact an apple store or get an appointment at the Apple Genius
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http://www.apple.com/retail/geniusbar/

Macbook (2010) to HDTV - not working

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