I use onida ky2 21" My brightness is full (up to optimum ) but I am getting dark display If if give punch to tv sometimes its brightness is normal else again it goes black please help Vinod Sardeshmukh 9270571589
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There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
Check its 'S' correction setting. You have to enter its service mode to do this adjustment. If you wish to get more details, surf this link.
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Assuming the Recovery Partition hasn't been disturbed, boot the machine and press ALT + F10 at the same time. You will enter a recovery phase that will give you the option of restoring to factory settings. If the Recovery Partition HAS been either disturbed or wiped out, you will not be able to restore to Factory Settings without a set of disks from Acer.
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.
BSC25-NO347 E1MWFL21017 , i have onida black 300 21" tv - in that LOT no is given as shown above - iam babu , computer hardware engineer, from bangalore,9986222774, - i have replaced LOT in my tv - please cal me immediately - i also need very big help from you