Check all the other components in the power supply section.
SOURCE: Onida TV service code needed
press disp+vsm together here it opens service menu at last of that menu there is restore option press 1 to INT . press 1 and your tv will restore.
SOURCE: onida ky oxygen thunder (DVMC) service menu code
to open service mode press vsm and display from remote.
SOURCE: the tv is completely dead.
there may be some bad capacitors in the primary of the power supply. do you get any led lights the front? most polaroids will have a red led on the front if the standby supply is good. there will most likely be some smaller caps 47mf@50v 10mf@50v probably that value that are bad.
SOURCE: my onida 21" black color
Possible there is a fault in soldering. Poor joints in the CRT base circuit of the CRT tube will result in poor connection after some use due to the fact the heating and cooling will detach off the leads. So use a good soldering iron to touch up all the points in your main board and the CRT board and it must work provided your tube is not faulty.
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