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Tube TVs
Sansumg 21 inch Conventional TV Chassis KS9A
hace 5 años
hace 5 años
GOOD DAY FRIENDS I HAVE A CONVENTIONAL SANSUMG BRAND TELEVISION OF 21 INCHES, KS9A CHASSIS, THERE WAS A LOW DOWN, AND I DISCONTINUED OFF, I CONNECT IT TO THE POWER SUPPLY NETWORK AND THE ONLY THING IT DOES IS MISSING INTERMITTENTLY, AND THE LIGHT IT DOES NOT TURN ON AND IT SMELLS BURNED I NEED TO HELP ME LOOK FOR A SOLUTION
9.501
hace 5 años
hello friend: you have knowledge in electronics ... if you have comments q, have you checked or q, measurements do echo ... ok ..
hace 5 años
I am not only an electronic learner but I have been able to reach solutions thanks to your comments
9.501
hace 5 años
If you have little knowledge, it is dangerous to get your hands on the board with the TV turned on ... or ... take the necessary precautions xq, inside the equipment there are voltages of thousands of volts ... especially in the fli-bak area. ... to begin, remove the trans, salt-hor- from the plate ... and then measure at C812 if the 125v of the + b are present ... measure at C801 in the primary of the source q, what tension do you have. .
look with the smell where the burning smell comes from ... ok ..
30.814
hace 5 años
hace 5 años
Hello Friend. In addition to what they tell you check from the entry ac. After the fuse rectifier diodes, the bridge diode, and the main filter open if it is not undervalued, then check the source resistors, zener diodes and rectifiers, and if all is well change the regulator and the opto coupler and check the tsh. It may be short. Cheers
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