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Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
There are two problems occurs on your TV, one is the line down the screen because of faulty horizontal deflection or faulty horizontal yoke winding. 2nd is...color of the screen are not balanced, check the RGB transistors in CRT board circuit.
remove the rear cover to access the main board, then you can do first with re soldering cold soldered component parts at video section which get loose contact to the pcb ( printed circuit board ).just let me know if it works good luck.
no ur tv must be had loose contact in video board section...or..driver transitor or driver ic may be failed in the vedio board section..if the tube is gone then there will be several horizontal retrace line will be found with red color, and they will not shake.. have a good day..
I am sure you had some strong static electricity. The static spark arced to inside of the TV in to the circuit board. Many of the low cost TV sets have poor static electricity protection.
In most cases there is damaged caused by static shock to electronic devices.
Just for curiosity, you can try unplugging the set from the AC mins and plugging it back in to do a simple reset, in case there is no damage and some logic device became hung up.
Last year I picked up my mobile phone and got a static shock from it. I had to get a new phone. This phone never worked again!
This sounds like a problem with the power supply. Usually capacitors on the power supply board tend to dome, bulge or dry up. The damaged ones can be seen on the power supply circuit board when the back is removed. The dry ones have to be removed and tested. The caps can be replaced at a repair shop for around $200, but if the power supply board has to be replaced it can cost a little more. It all depends on the shops repair fees.
so i had the same problem. red light came on, but no blue light or anything on the screen. it turns out that there were some capaciters blown on the circuit power board. unless you have a good understanding of circuit boards, its not a quick fix. but for someone who knows their electronics, its not too hard, and its not expensive to fix, unless you bring it into a store. but the supplies needed arent expensive. good luck