LG tv ultra slim XD 21FU6RG-T4

[ZaneM]

Good day Peeps

My LG tv Ultra Slim XD model 21FU6RG-T4 doesn't turn On when i try to turn it On it promise but 2to3 seconds as waiting for pictures then Standby indicator blinking any Help what might be the problem

 

[BigBoss]

Check the SMPS first standalone and verify all voltages are there.
If any component draws overcurrent from the SMPS, it will protect itself and therefore SBY led blinks.

 

[sawwa7]

this TV is built on Chassis CW81B and the schematic diagram will be attached on this post , your TV in protection mode and you have to check the power supply rails first and get sure that the power supply is working correctly specially the +B supply = 115V that go to the collector of HOT through the primary of the FBT , you can disconnect the HOT terminals to check if the protection caused by Power supply or Horizontal output stage , also check Vertical output , it sometimes cause the same problem !

--- Updated Feb 9, 2024 ---

LG_21FU6RG_Ch_CW81B Schematic