My sony triniton tv won't turn on. The standby red

HI. this may be a fly back situation. this is a transformer that is located on the power board section of your set. This device stores and, distributes the necessary AC current needed for proper CRT performance. There is also a horizontal deflection chip that will shut off the transformer if it becomes unstable as well.

I recommend checking the Horizontal deflection chip for damage. if this chip is in good condition, replace the HV Fly back transformer.