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.
SOURCE: Sansui Chic Classic 250 TV
Before entering service mode, be sure that the entire button on the remote control will work properly, if anyone found inoperative, do not use it to enter the service mode. If it is a universal remote control; check it well. With most universal remote controls, sometimes, all the button functions might not work as it should be. If so, try to set it with another set-up code said for your device, and then make sure about its working. I strongly recommend you to use the original remote control to enter service mode.
This is because;
Suppose you have to enter the service mode to adjust certain parameter. You haven't made sure that all the function of the remote control will work properly with your set or not. After entering the service mode, as you know, limited buttons on the remote control will be active. For example, in service mode, channel Up, Channel Dn, Volume Up and Volume down, and the OK button, Power button and Numerical buttons are used to adjust the data parameter. After adjusting all these parameters; you have to come out from the service mode to Normal mode. Otherwise, you can't operate the set. Suppose, the service mode procedure tells you that, you should press the Power button on the remote control to Power Off the set, to come out from service mode to normal mode. Power down the set by its main power button won't make it to normal mode. If the power button on the remote conrol does not work, how can we come out from service mode to normal mode? In fact, you can't come out of service mode.
The most important thing to note is this. Before you attempt to enter the service mode option, read and understand all the instructions. Be sure that there is enough detail to Exit from the service mode. If it is not there, never enter the service mode. For some sets, there will be no Exit option. To such sets, Power it OFF by the main power switch will do the same. But you should make it sure by reading the instructions.
For your information, I've included some set-up codes too here, to check with your universal remote control, if the present set-up do not work with all the functions it supposed to be. Set-up a universal remote control is a trial and error procedure. You might have to check with many set-up codes, before you get a proper code to your remote control to work properly with your set. The included codes are the common codes works for your brand. If you wish to get more set-up codes and set-up procedure, visit the sites linked here.
http://electrohelponline.blogspot.com/
http://remotesearch.blogspot.com/
You can get more details by this site too.
http://electro-medical.blogspot.com/
After enter the site, just type in the brand name to your set; in the search box, at the top right of the display window; to get gathered the related pages that contains details. Please do not press the 'Enter' button, after type in the brand name into the search box. The search will start automatically, as you type in the brand name into the search box, and will list related pages.
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