The 1SS53 or 1SS97 switching diodes in the RF front-end are notorious for failing or becoming "leaky" over time.
However, time has not been kind to the FT-757GX. Today, it is a classic "project rig." If you own one, or are thinking of buying one used, you will eventually confront the infamous litany of . This guide details every major fault, from the dreaded "VCO unlock" to the capacitor plague, and offers practical solutions. ft-757gx problems
Sometimes the physical "ATT" (Attenuator) switch on the front panel develops oxidation, causing intermittent signal loss. A quick spray of contact cleaner often resolves this. 5. PA Stage and Final Transistor Failure The 1SS53 or 1SS97 switching diodes in the