Morgan3820
En-Route
Background;
I purchased a PA-28-151with a PS engineering 1000II intercom. I went to my local avionics installer (30 yrs. experience) and asked him to add a second ptt switch on the right side yoke.
After laboring on it for a while he couldn't get it to work. Plug into the right side jacks, press the button and the transmit light on the radio (Mitchell MX170) and the intercom indicate transmission but nothing goes out and I do not hear any carrier in my headset. Installer guy says that the relay in the intercom that switches between right and left mike jacks is faulty.
I call PS engineering support. They say that they have never seen such a fault...ever. After doing some mike swapping and testing he feels that the installer has it wired up wrong. That it is wired in parallel. While common for other intercoms, they wire theirs individually to the intercom. Ask the installer to talk with tech support, which he does.
Back to the installer for a second look at the wiring. Installer says that it is wired correctly. Suggests sending unit to PS engineering support. $100 service fee to find out that the unit is working fine. They replace the suspect relay anyway. Back in the airplane, nothing has changed, still showing as transmitting on the radio and intercom but nothing out and no carrier in the headset.
Personally, I like the installer because he will do small jobs and doesn't push $30K full panel upgrades, but I am beginning to doubt his abilities.
Thanks in advance for any ideas.
I purchased a PA-28-151with a PS engineering 1000II intercom. I went to my local avionics installer (30 yrs. experience) and asked him to add a second ptt switch on the right side yoke.
After laboring on it for a while he couldn't get it to work. Plug into the right side jacks, press the button and the transmit light on the radio (Mitchell MX170) and the intercom indicate transmission but nothing goes out and I do not hear any carrier in my headset. Installer guy says that the relay in the intercom that switches between right and left mike jacks is faulty.
I call PS engineering support. They say that they have never seen such a fault...ever. After doing some mike swapping and testing he feels that the installer has it wired up wrong. That it is wired in parallel. While common for other intercoms, they wire theirs individually to the intercom. Ask the installer to talk with tech support, which he does.
Back to the installer for a second look at the wiring. Installer says that it is wired correctly. Suggests sending unit to PS engineering support. $100 service fee to find out that the unit is working fine. They replace the suspect relay anyway. Back in the airplane, nothing has changed, still showing as transmitting on the radio and intercom but nothing out and no carrier in the headset.
Personally, I like the installer because he will do small jobs and doesn't push $30K full panel upgrades, but I am beginning to doubt his abilities.
Thanks in advance for any ideas.