For a few months now, the backlight of our Icom Ic 746 has been turning on and off unexpectedly. This malfunction did not affect HF and VHF operation in any way. After extensive research on the Internet, our SWL Frank P. identified the faulty circuit. The problem often comes from transistor Q302 and the capacitors associated with it. This fault is well known on this type of device... SHTSF thanks to F4GYB for the info