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If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/Pull up older posts. Power supply schematics to many popular brand TVs are given. Sharp itself uses many STRs. You can compare the schematics and can get the details.
Check this site for more details. It has power supply section schematics to many brand TVs, including Sharp.http://electronicshelponline.blogspot.com/ Pull up previous posts, either by type in
the Brand name to your set in its search box, or view it in Mosaic /
Timeslide / Flipcard option.
If your SMPS IC is getting damaged all the time , you can easily source an universal SMPS unit with the required + B voltages to power your TV and this will be more reliable and will not fail as the circuit is much stable.
The failure of the STR is due to poor feedback, poor components int this section or the SM oscillations, or a faulty SM transformer.
Solution #1 has it backward..
(tax rate), STR, TAX+ (or TAX-)
Example- San Francisco sales tax = 9.5%
9.5, STR, TAX+.
now it functions as (amount entered) plus tax.
Example- find the total with tax for a purchase of $14.99
Calculator will show 16.41