# Check the power socket and the power cord. Connect a known working appliance to the socket to check if the socket is indeed live. If your TV has a detachable power cord, make sure plugs at ''both'' ends are fully seated.
# If you're positively sure that the socket is live and the power cord is OK, '''unplug''' the power cord and leave it unplugged for half an hour before plugging it back in. Certain recent TVs are fitted with self-resetting fuses, and unplugging the power cord will allow a tripped fuse to reset.
# If you're still not getting the red '''Standby''' light, the circuit that powers your TV is defective. Such defects are often banal and easily repaired, but this should be done by a qualified technician because the power supply circuitry is ''safety critical'' and faulty repairs may constitute a fire or electrocution hazard.