Tuning problem KV-21CL10

the Heaviest string of each string pair is placed at the top (closest to your nose). In fact, if you look at the nut, (the notched thingy that spaces and holds the strings at the right spacing up by the tuning pegs) the notches in nut are wider than the paired string for this reason. That may not be true on all 12 strings but it is on mine. So the typical arrangement is heavy string, matching string. Heavy String, matching string. Except on the bottom 3 pairs where the actual string thickness can be the same. One caution note here....when tuning a 12 string, tune it a whole step lower. So rather than tuning it at EADGBE, tune it at DGCFAD then use a capo on the 2nd fret to bring the tuning up to EADGBE.
The reason for tuning a whole step lower is because on the top 3 pairs of strings you normally tune the thinner string an octave higher to give that 12 string sound. So if you start tuning at EADGBE, those thinner strings for the top EAD strings are going to be pretty tight and they will snap. So much safer to tune a whole step lower and just use a capo!!! Good Luck

Possible that the TUNER is faulty and so the AUTO SCAN will not memorise the frequency to be SET. You will need to check if there is picure on the A/V aux inputs. If so the tuner/VIF/SIF sections is faulty. Also channel skipping can be due to fault in the memory or the processor or poor gain the VIF section/TUNER section.
You need to check for voltages and also need to inject signal to trace and confirm.

1. Press and hold down the [White Arrow Up] 'shift' button.
2. While held down press the UHF tuning button (symbol for button is ->).
3. Press + or - to tune up or down the UHF band as required, until the required station is reached.
4. Select a spare Channel Position.
5. Press [Arrow Up] & [UHF Tuning ->] buttons again to store and exit tuning.
You must use the remote control. No tuning is available on TV.

Yes it does have a headphone jack. Lift the plastic door at bottom front center of TV to expose jack.

You can use a VCR as a tuner if you tune the TV to the VCR. for instance channel three or four, however you have the switch set on the back of the VCR. Then of course you would connect any antenna or cable into the VCR and use that exclusively to tune your TV. Better yet, if you have a line level input to your TV you could connect the VCR with RCA jacks (the red, white, and yellow) and then you would enjoy a sharper picture.

My Tv is locked and cannot start. it asks for password.
how to open it?

The retuning process is as follows:

1. Press the [i+] button on the remote control to display the DIGITAL INFO menu.
2. Press the BLUE button to display the MAIN MENU.
3. Press the UP or DOWN buttons to highlight AUTO TUNING then press the OK button to display the AUTO TUNING MENU.
4. Press the RED button to start the auto tuning process for all available digital channels.
5. Wait for the process to complete.

If you wish to CANCEL the auto tuning process whilst it is processing then press the BLUE button at any time.

You may lose some channels when you retune the TV as the channels have been rearranged. To locate them look at the EPG although you may still find that some channels are no longer available on FREEVIEW. See the following link for additional information

http://www.freeview.co.uk/_retuneinfo/

Please resold all pins of IC001 in main board of TV. Problem will be solved.

You must get a proper replacement remote control, once you can access the menu and find you cannot store above 13, place another post and i will help you further.

Do you mean frequencies above channel 30? Otherwise perhaps the set cannot store more than 30 channels? More info required to be certain.