Vertical line coming in onida tv - NEC PlasmaSync 42MP3 42 in. Television

Where the diodeRH3G located please tell.is it for vertical IC supply? Plese reply

Vertical scan output section circuit has the fault. Check it. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

If the line displayed is a very thin one, and across the center of the screen, it is a problem with its vertical sweep. Check and replace the vertical output IC. If you wish to get more details, and schematic similar to LG, check the site linked here. Check what is the IC number used with your TV. Check for it. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the Brand name to your set in its search box, or view it in Mosaic /Timeslide option.

You should replace the vertical IC of the same number used with it. No substituiton will go on.

Horizontal line on screen denotes the absensce of vertical sweep itself. Check the vertical output section circuit to LA7840. Check for any loose solder terminals. It will be best to measure the input voltage to that IC from the LOT secondary supply. Try by replace the IC. If these do not help you, measure the frequency from the main IC. It should be at 50Hz. If this frequency is not present, the main IC is faulty. If you wish to get some more details about the circuit, check this link. http://electronicshelponline.blogspot.com/ Pull up older posts there, either by its left side bar, or see it in Timslide option. Schematic diagrams, that show vertical IC LA7840 is given. You can compare it.

sir i have onida 21'' tv thi tv vertical line smoll so i need adjest for v line. please tel me fectery setting code

needs a new vertical chip call your local tv repair men to get the job done cheap

sir my onida tv 21'' ineed un lock

my onida ky thunder giving fault led blinking after plugin and after 5 second goes to stopped mode