sonic-cruiser.jpgThe Analysis: The Processor Select Panel, 7-F511F00121-1, is from an Apache Longbow AH-64D. The Panel is rather simple but it will work for my Navigation Computer Select and Fault Panel

processor select panel.jpg
Parts List
Part NumberDescription
7-F511F00121-1
1290-01-438-6575
Assembly, Panel, Processor Select
7-511F00022-1
1290-01-438-6570
Panel, Light plate
7-511F00023-5Plate, Support, Front
7-511F00024-5Plate, Support, Rear
MS21347-A211Switch Toggle, DPDT, MIL-S-8834  Lever Lock/IWTS Terminals
D38999/20JB35PND38999/20JB35PNConnector, Male, MIL-DTL-38999 III, 13 pins
(11-35 Arrangement)

HS5932-04
5930-01-454-8277

Lamp Housing - Korry 5/8" Type 427 Pokehome, Pin Configuration Type 2, Single Common Type 5
18651-014Lamp Lens
LTX6839
6240-00-143-6558
Lamp, T-1 Sub-Midget Flanged; 28 V, 0.024 A
D38599/26JB35SNMating Connector
IMG_20160818_112848.jpg
Photo of the panel in my test harness

I plan on installing it just forward of my side stick, on the right-hand side of the cockpit.  I have looked all over the Internet for an interconnection list or printouts but I can not seem to find one. So it seems that I am going to do this the old fashion way and create one myself. Luckily my panel had the mating connector and a pigtail on it.  So this is what you will need the following:

PinFunction
1DS2, COMMON
2N.C
3N.C
4CR2, ANODE
5GND
6S1.SP1 = CR1 + CR2
7S1.SP2 = CR2 + CR2
8
9PANEL LAMPS,  RETURN
10PANEL LAMPS, SOURCE
11DS2, SP#
12DS2, SP#
13CR1, ANODE
  • Your favourite DVM
  • Wire stripper (thermal is a must), as this is Teflon covered wire. you can find then on eBay about $99.00+ 

ThermalWireStripers.jpg

  • A voltage source (5vdc)
  • The connector's "Contact Arrangement"
  • assorted screwdrivers and other tools
  • note paper, computer, etc.

 

The Plan:

  1. First, grab my thermal stripper and strip the ends. Not only do I want to find where the wires go to but I want to also  fill in the table on the left, for this the Connector's Contact Arrangement is a must.
  2. Remove the SP1/SP2 Displays Lens Cap
  3. Remove the panel's light plate.
  4. Identify the wire and its connector's position.
  5. Flip the toggle switch from off to SP1
  6. recheck #3 sb:#41
  7. Flip the toggle switch from off to SP2
  8. recheck #3 sb:#41
  9. Re-attach the panel's Light palate and Displays Lens Cap.

The Plan Phase 2:

First, attach the cable ends to a mini DB-15 connector (VGA connector).
Remember that I do not want my lighting circuits, anywhere near my logic so I will use three separate relays to drive them. Your processor selection will effect your build. At one end I have an Arduino Duemilanove (2009) or Mega and at the other end, I could use a TI Launchpad  (MSP‑EXP430FR5969) product. The only thing to remember is that you will need some I/O pins and a USB interface, and depending on the amount of I/O I2C might be helpful for an I/O expander if you were short on digital I/O pins.

Now let's get our hands dirty. According to the Analysis, we will need the following I/O pins:

 

PIN

FUNCTIONAL DESCRIPTIONSIGNALINPUT
OUTPUT
5GROUND, SIGNALGND
9POWER, LAMP, RETURNLPRTN
10POWER, LAMP
6SWITCH, PROCESSOR - 1SEL1X
7SWITCH, PROCESSOR - 2SEL2X
1DISPLAY, ACTIVE PROCESSOR - 1DAP1X
11DISPLAY, ACTIVE PROCESSOR - 2DAP2X
12DISPLAY, ACTIVE PROCESSOR - COMMONDAPC
4?
13?

 

Keep tuned in, More to Come!

Cris

 

NOTES:

  1. Changed #3 to #4 Sept 14, 16

 

 

PART II

Phase 3: Hardware.

Phase 4: Protocols, Communications

Phase 4: Software.

 

ps I guess I really don't have time to finish this blog post as I have to start getting ready for Cockpit Fest US in Lancaster Texas. 

And you can also follow along on Facebook®