Today I continued to work on the electrical
challenges. I removed the master switch
module from the instrument panel so I could get to the trim tab pot. I also removed the SkyView screen.
I
discovered that the major problem with the trim tab was the pot was turned
completely off. Yesterday I turned the
trim pot clock wise but nothing happened.
Today I turned it CCW and viola, it works. By turning the pot CCW I was able to get the
trim to function properly. It now moves
up and down and the travel time is 25 seconds.
After working on the potentiometers for a while I decided to cut the pot
adjusting tool in half so I could more easily get to the adjustment
screws. It worked well. With only half the tool length I was able to
do the adjustments on the side of the Control Module. Next I decided to work on
the sound. I plugged in an MP3 player
and put some musing into the system. I
plugged in the pilot headset. I had the
volume on the head set maxed and the volume on the MP3 player maxed. After turning the Aux 1(L) and Aux (R) pots
25 turns CCW I was able to finally hear some music. It is not very loud but it is there. I worked on adjusting the EFIS levels. I don't think I did a very good job. On Monday when I am back out to the airport I
will work on them again. I entered the
Audio Setup menu in SkyView and set the Volume Control / Test to 100%. I turned on the radio and tuned to the AWOS
frequency 134.425 and there it was.
Because the input from the MP3 player is fairly quiet I am not sure I
was able to accomplish anything in the way of improving distortion. I will work on that again on Monday. I am happy that some of my electrical/audio
problems are being corrected. I still
have a ways to go. I took some photos of
the switches showing what happens when they are activated. For now the problem centers on the NAV/STROBE
– NAV switch. Again, when I turn on the
NAV/STROBE switch the cockpit light and the AP disconnect light illuminate. I also discovered that both the top and
bottom green lights of the switch illuminate.
When I put the switch in the off position both lights go out but the top
and bottom green lights in the switch continue to glow for 1-2 seconds. When I turn on the NAV switch there is not
cockpit light and no AP disconnect button light, but again, both the top and
bottom green lights in the switch illuminate.
When turned off the continue to glow for 1-2 seconds.
This is what happens with the NAV/STROBE switch
activated. Both green lights in the
switch glow and the AP disconnect button (and the cockpit light) illuminates.
