Semoic 4 Pin Short Wave Radio Power Supply Socket Cable Cord Connector for ICOM IC-7000 IC-7600/FT-450 TS-480

hi friends and greetings from tear expand today I have again Icom IC thousand solvent here this guy and this radio will not any longer trigger an external power amplifier so hmm let's see what has happened and let's see if we can fix his radio and for triggering an external power amplifier we have here this AC socket which is an accessory socket and as you might certainly no we need a pin which goes to ground to be able to trigger the a let me call it PTT in the power amplifier so that the power amplifier goes into transmit after the radio has keet so that is how it works and one of this pins here have to go to ground if we trigger or if they key our PTT and then you know we should see this pin going to ground and that is as well as the first we gonna test here with this radio to see what's happening and the owner of this radio has this little ya inline relay which it's really very ofte