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Resetting the digital tuner - Samsung LN40A550 LCD TV

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Have the same problem it is the main board but no one will post the fix. It can't be that hard to fix! Have a BN94-022079A its similar to your board looks the same and has the same problems. Anyone willing to post the fix for this baord.

Posted on Mar 16, 2014

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Posted on Jan 02, 2017

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Hi, my name is Milan. I have a sony Bravia 55 w950b TV that has lost antenna signal


Sounds like defect is with its tuner itself, as you suspected. Contact any service technician.
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Toshiba 32C100U, won't pick up digital signals


The tuner can fail. Did you have a surge come through cable line? I have had tuners damaged after a lightning strike near an OTA antenna. (It took out the amplifier/splitter and the tuners on 2 TVs and a digital-to-analog OTA converter box. Oddly, it didn't destroy the tuner on a second converter box.)

Before you assume that the tuner is bad, try resetting the TV to the factory default. Press Menu and select Setup. Highlight Installation and press Enter. Then use the left and right arrows to get to Factory Defaults. Press Enter and then highlight Yes and press Enter. (Enter your PIN if you have set one.) Then use the left or right arrows to select Done and press Enter again. After the TV turns off, unplug it for several seconds. Plug the power cord back in and try to scan for channels again.

I hope this helps.

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We can't set up our 32 inch insignia 120Hz tv. It keeps saying "no signal." We have been on the phone to both Insignia and Comcast with each essentially blaming the other. We have a digital cable box...


Tries unplug tv and cable box replug both back about an hours.The tv now,it resetting itself back to the factory setting.The cable box is now resetting and it upgrading it softwares.The tv should work now.Not,tell the cable company sent u another box,still have same problems,the tv board call the Tuner signal board have problems,must be replace.This Tuner signal board,that the board,where the tv incomming broadcasting signal cable plug into it.If the tv is out of warrenty,tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner signal board for the replacement.

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1 Answer

Sony bravia kdl-46z4100 is 18 months old. TV speakers quit working. can they be replaced easily, or does a repairman have to be called.


Try the tv unplug,replug it back an hour later.The tv now,resetting back to factory setting.Go to tv Menu.Goto AUDIO setting,go down to reset,the Tuner board is now resetting.The tv should have sound now.Not than,the Tuner board have problems.Not the speakers,yes call the repairman.It'll cost half the price of a new tv.

Sep 07, 2010 | Sony Bravia KDL-46Z4100 46 in. LCD HDTV

1 Answer

The signal does not pick up


Tries unplug the tv for an hour,replug it back in.Go to tv Menu,go to PICTURE,go down to resetting.The tv Tuner board should resetting it back to Factorry setting.All the HDMI setting should work now.Not,than than the Tuner board is dead.Tries websites like Shopjimmy.com Ebay.com to buy a refurbish Tuner board for the replacement.

Jul 17, 2010 | LG 37LP1D 37 in. LCD Television

1 Answer

My sound just went on my sanyo televison. It is model dp19649


Unplug the tv about hour,replug it back in.Goto tv menu go to AUDIO.Go down to resetting.Tv Tuner board will go back factory setting.The audio will,retrun.Not,than the Tuner board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacement.

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Sound fine with HDMI input and DVD input. No sound with TV input. Mute is not engaged on either TV or Cable remote. Solutions anyone? Thanks


Unplug the tv about an hour,replug it back in,now ur tv it resetting it back to factory setting.Go into the tv menu,go into the AUDIO setting.Go down to reset,press it,now ur Tuner board it resetting,the sound should come back an work now.Not then ur Tuner board it defective,must be replaced.

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1 Answer

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If you have the unit set to cable/antenna and the channels are not locking in you may have a bad solder connections where the tuner mounts to the main circuit board, in the tuner or the tuner itself is bad. Without certain in shop tests its hard to pin point tuner problems. Depending on the age of the set a tuner may be hard to find.

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1 Answer

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Do you have a Dual tuner DVR? If so, verify that you have 2 cables from the dish plugged into the back, one into each tuner.

If thats not the problem, go into your settings and verify that you do not have one tuner disabled. If both tuners are enabled, check the signal strength. If its good on both tuners and resetting the receiver doesn't fix it, its probably time to call DTV to discuss a new receiver.

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