DU4 red x. Left AND right reversionary work. EIED left and right work. Left reversionary works.
3270 – 81 is “DU4 is not receiving the EFIS Graphics Bus Data”
3270 – 90 is “No reversion modes were active”
so the EDS Fault summary sees the problem as IAC2-DU4 interface problem.
Figure 8-14 shows ASCB , which is 3-254, near page 259
ASCB elead wire pulled free from pin 38.
The spade must be less that .020 inch thick.
Low pin tension on a relay base.
https://youtube.com/shorts/TsrWvsCJWD8?si=V4Mp6WVYzLdLKyb6
Here is a closeup of the green lights during a good antiskid test. Notice the lights stutter just a little as he lets his finger off the button.
I have seen a couple of failed antiskid boxes where the lights extinguished perfectly when the button was released. Not sure why that is?
Here is the voltage applied to the servo during a successful ground test. Starts at 3.5 and decays toward .9, untill the lights come back on.
Failed test. Only goes to 1.4vdc, and brakes never release. 1 second later, the menelco pops red, and the lights never come back until you release the pedals.
Here is a failed antiskid test with 1 open main gear transducer. Red menelco pops immediately when test button is released.
A !non-embedded! Falcon 50EX below serial number ____ has 9 pin DEEC download ports. Not the same as a F50…Not the same as a 900…not the same as a F50EX with embedded interface. and no, yo cannot just take the upper cowl off and download directly from the DEEC.
A decade ago, Honeywell was able to provide the 9 – pin adapter . for $1800.00 and 6 months lead. Good luck even getting the part number now.
Here is what we worked out after much trial and tribulation! Thanks Marcus!
CAUTION: pin 1 orientation on the RJ12 end is to the left when the tab is held down. You may have a similar !!!! or !!!! reverse cable end. WIre to the pin positions, not the colors.
Not for the faint harted, I had probably 100 hours and $600.00 in this by the time it was done. If you just need a Heater/AC control, this is WAY TOO MUCH trouble for that. I recommend the many websites that explain how to modify a Accord Heater/AC control panel. I approached it as a learning experience to push my knowledge of the Arduino farther along.
Auto reconnect after keyswitch is turned on.
1.The trick was to send data all the time from the arduino.
2. in AI, test the incoming data field to see if it is empty.
3.DISCONNECT the BT, even though it is already disconnected.
4. reconnect to same connection.
5. I error trapped the screen so that the nuisance errors would not take over the display.
Thanks Marty
Todd
This, if you are lucky
Before:
After:
The elevator servo is also used in the stall warning system as a stick pusher (Chapter 27-31-00, STALL WARNING).
One analog DC voltage output used to represent AOAL.
| Beechcraft Premier I Avionics System Avionics System Manual | 523-0778447 |
which collins manual?
After it all settled out, the actual problem was a Radar Graphics Adapter that failed with heat:
Equipment
Wxp850a control panel pn 622-8393-003 sn257
Radar
Gulfstream Mineapolis drawngs of the EGPWS installation
GDASCWB13490002R___[1] This is the correct one, after much hassle
This a disk of old IAI EO’s
EO_LD—25W810104E002_B_004_01 EO_WD—25W129213_-_002_01 EO_WD—25W129304_B_004_01 EO_WD—25W129304_C_005_01 EO_WD—25W129304_D_006_01 EO_WD—25W129414_-_002_01 EO_WD—25W129503_-_002_01 EO_WD—25W129602_-_002_01 EO_WD—25W129705_A_003_01 EO_WD—25W129705_B_004_01 EO_WD—25W129705_C_005_01 EO_WD—25W129705_D_006_01
Here is the YouTube of the WXA350A failing when warm
https://youtu.be/5lnfkmEuBl0
