The TV tuner doesnt pick up the channels

Ur tv is hook up to a antena and getting free AIR DTV broadcasting signal?Yes,tv have lost channel 7 tunning in frequencies.Go into ur tv menu goto SETUP and pick EZ or Wizard scannning might get it back,not must go into Ch. pick AIR not Cable to rescan the whole thing for picking up all free AIR DTV channels again.If tv it is getting pay Cable do the same thing,pick CABLE for channels scanning not AIR.

To get HD channel form your cable TV without using the cable provider HD tuner box but using your TV Clear QAM tuner (your TV has Clear QAM tuner, my TV also has QAM tuner so I do not have to use the cabel box, but my COMCAST does not provide may Clear QAM signals like they use to) to get the unscrambled HD, the cable provider must provide those unscrambled Clear QAMsignals for your TV to pick up the signalS.
Learn more about Clear QAM cable signals:
http://en.wikipedia.org/wiki/QAM_(television)
Did you use the correct setup during the tuner setup to scan the availabel cable channel per user manual?

Hello

You just do autotune to receive all channels. In this mode TV will tune through the entire channel band automatically, and finally will stop tuneing, and will show the first channel receved. You must be patient for these time. about two or three minutes, without disturbing is process. The tuning process follows.

Auto Tuner Setup

In Auto Tuner Setup, the TV automatically scans

t h rough all available channels, memorizing the active

ones and skipping over blank ones or channels with

weak signals. This means when you scan (using the

CH A N N E L +/- b u t t o n s ) you will receive only clear,
active channels
P ress the ME N U b u t t o n
Press UP or DOWN buttonTo AUTO TUNER SETUP
Press Right or Left button to operate
Press Vol+ or Vol (--) to choose CABLE or AIR
Press UP or DOWN button to move to START
Press Right or Left Button to start Auto Tuner Setup

Tv will show "NOW PROGAMMING" display.
Programming will take approximately 1 to 2 minutes.
After all it will show
PROGRAMMING OVER

Some cable systems experience interference from radio frequencies on cable Channel 95. You may delete this channel from
your scan by removing the "X" next to it on the Channel Summary screen.

Most HDTVs have ATSC, QAM and NTSC (analog) tuners. It sounds like yours does not have an NTSC (analog) tuner. QAM tuners only pick up digital cable channels. You may need to switch to your cable company's digital service if your not already on it. Call your cable company for further info

OK. This should be simple. If you are using a TV with a built in digital tuner like all the HDMI ( High Defintition Media Interface) flatscreens then you probably need to go through your set up menu on your Digital TV and select Initial Setup / Channel Input / Cable / Satellite if coming directly from a dish on 75 Ohm Coax / or Cable if coming directly from the outside 75 Ohm coax with analog signal. ( When I say DIRECTLY, I mean you are not going through any boxes and changing or passing the signal). All satellite direct connects are digital and all satellite converter boxes have multiple out puts these days. There is an HDMI output for high def and low def analogl to digital (A/D) signals coverted within the TV, sometimes there is a DVI or even a USB out put connector...and there is a 75 Ohm coaxial RF cable connection for all the old schoolers who do not have a widescreen digital TV. RF means Radio Frequency and uses Radio Frequency Channels 3 and 4 at the bottom of the RF band around 56 MHz to which any TV with an Analog Tuner can use. In the old days this is what was used for the connection to the TV from the cable boxes because our TVs did not have the capability of decoding analog pay channel signals, hence the little black boxes sold and used ONLY by cable thieves and not any of us here on fixya. For starters, let's make sure you are using your high def, dvi. or some format of digital It sounds like your TV is set up to search and code digital signals but is looking for the wrong carrier frequencies, meaning it is either looking for decoded digital satellite box signals, digital broadcast ( New Digital TV received via an Antenna). Once your TV scans for channels in the cable mode they will be memorized and available on your channel up / down keys and Favorites. (FYI t will scan for both digital and analog channels on antenna mode). Repost if you have troubles or refer to your users manual.

cable or Ant.. ? after the scan if there is no channels found (0 digital, 0 analog) then try with cable or Ant to see if any of them work.. if they still don't pick up any channels and the whole yellow progress line goes across.. then it sounds like the tuner on the tv is bad.. and the tuner is part of the main-board so the whole main-board will have to be exchange or repair.. contact Amergence technology they are a 3rd party repair center that service Olevia TV's and they will be able to give you an idea on the repair cost..

<<< Amergence Technology number is 866-965-3842 >>

In order for the TV to work with the cable box by using a piece of coax and tuning the TV to channel 3, you must make sure the TV is in "Cable" mode on the tuner and not "AIR or Antenna" the frequency maps are different between these types of service and channel 3 cable will not be the same as channel 3 on Air or UHF/VHF.

Often there is an auto program feature on TV's that will "scan" for all available channels, and this should select the proper input type.

Hope this helps!

YOU HAVE A BAD TUNER OR RF INPUT. IF YOU CONNECT THE CABLE TO THE VCR AND THEN USE THE VIDEO OUTPUT OF THE VCR TO THE VIDEO INPUT OF THE TV YOU CAN USE THE TUNER IN THE VCR TO CHANGE CHANNELS.

Intermittent loss of lower frequency channels ie Ch:36, higher channels ok
Dry joints in UHF tuner, resolder the PCB to casing earth connections inside tuner

Do you mean the channels from the internal tuner which would be channels 22 to 68, or do you mean satelite channels, as I do not know whether this set has a built in satelite receiver? Satelite broadcasters are often changing frequencies or satelites.- Programs come and go!