Cannot connect samsung 7500 hdtv to imac

hi can anyone help me cannot connect samsung 7500 hd tv to imac. Have already tried switching them both off starting tv fist and all three hdmi ports just getting no signal on the tv. also tried detecting the tv in the display in preferences but the mac cannot detect the tv help please?

OK. Through some non-intuitive forum labeling on Apple's part, you found the forum for pre-2006 iMacs. I'll ask the Hosts to move it for your to the Intel iMac section.

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Cannot connect samsung hdtv to imac

Hi Accidently posted this on intel forum but someone suggested this is correct place.
Have 2.7ghz I5 21 inch Mac with OSX with 10.7.4 version. Have purchased new Samsung 7500 HDTV and cannot connect the two. Have purchased Thunderbolt to HDMI converter cable all in one. All the TV says is no signal.
Have tried
1. All three HDMI ports on the TV
2. Each combination of turning each device on including another thread suggesting turn TV on first with cable connected then turn Mac on
3. Forcing computer in displays to detect TV but it does not
Any suggestions greatfullly recieved, many thnaks

An Update
After trying to solve this for a few days took the Mac into the TV shop. Mac worked with Panasonic, LG and Sony and even worked with Samsung Series 5 & 6 but not with Samsung series 7 or 8.
Hence have returned Samsung and now have a Panasonic.
Not sure if other Apple products are affected but a Mac and Samsung Series 7 & 8 are not compatible, surely this will be a big issue??

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sry, but you posted this in the wrong forum
this is the PowerPC forum, which is for machines built before about 2001.
post it in the INTEL forum

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Hi!
Im sorry for my english! Is very poor...
I recommend you this things:
1. Check "Time and Date" from "System Preferences" (Click the apple in the status bar, and go to it) and be sure is in automatic location everything.
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Go to "Disk Utility in Applications> Utilities, select your Hard Disk, and chose "Repair Disk Permissions" from the "First Aid" tab
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Open terminal, and write directly:
"sudo pico /private/etc/hosts" and press INTRO key
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Welcome to the Support Communities!
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I see you're running into printing issues. I would like to help.
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Good luck and please let me know the results of your troubleshooting steps. Thank you for posting on the HP Forums!
Please click “Accept as Solution " if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks" for helping!
Jamieson
I work on behalf of HP
"Remember, I'm pulling for you, we're all in this together!" - Red Green.

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Cannot connect samsung 7500 hdtv to imac

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