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WORLDFLIGHT 2019 - TEAM USA SUPPORTERS (HERO'S)

 
Worldflight 2019
Donations Starting Early
With 50 Days Left, it's time to start Counting Down to Worldflight 2019.  Beginning in August, we had 2 kind gentleman lead the way on our quest for donations to this amazing Charity Event.  Over the Past 6 Years, we (This community) Has helped to raise over $25,000.00USD to help the kids and their families of the All Children's Hospital in St. Petersburgh, Florida.  Kicking off the donations this year these Two Hero's are leading the way to another Successful Year.  I personally want to thank these two Gentleman and use this opportunity to have all of you donate to our wonderful cause. 
Thank you in advance for your help and please wish us much success for our 2019 event.
       
  ---Worldflight 2019 HEROS---

 James Williams, Warren Soeldner,  Sam Llorca, Doug Snow, Ryan O'Keefe, Edwin Burton, Vincent Thomas, Fred Kurasiewicz       





Thanks to all of you, You are all helping to make Worldflight 2019 a success..
Because of all you wonderful people so far we have raised a total of:

$2745.00 USD


Author Topic: boeing overhead circuit breaker back light panel wiring  (Read 703 times)

Offline kondrat

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    • Boeing 777-200LR project
  • First Name: Denis Kondratenko
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boeing overhead circuit breaker back light panel wiring
« on: November 20, 2018, 07:42:52 PM »
Hi all,
Probably an easy question but ...

Just finished my overhead frame and adding switches. Have CB panels mounted (OEM probably from 747) and was ready to connect backlighting. I was able to find 5v cable and ground is common for all the panels.  When I use 5v the panels are very dim. I have to supply almost 12v to see them bright. If I connect 5v to individual panel everything looks good. How to supply the power to the panels using original wiring?

Thanks,

Denis
Boeing 777-200LR project
http://www.flikr.com/project777

Offline mickc

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  • Home Location: VIC, AU
Re: boeing overhead circuit breaker back light panel wiring
« Reply #1 on: November 20, 2018, 07:46:58 PM »
What sort of power supply are you using to power them? also are you powering the lightplates directly or through a dimmer?

Offline kondrat

  • Forum GURU
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  • Posts: 37
  • Aviation Enthusiast
    • Boeing 777-200LR project
  • First Name: Denis Kondratenko
  • Home Location: Cambridge, Ontario
Re: boeing overhead circuit breaker back light panel wiring
« Reply #2 on: November 20, 2018, 08:06:25 PM »
Thanks for help!

I am testing first without dimmer. I have 5v power supply (maybe need something more powerful).


Boeing 777-200LR project
http://www.flikr.com/project777

Offline mickc

  • I may as well be Staff!
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  • Posts: 548
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  • First Name: Mick
  • Home Location: VIC, AU
Re: boeing overhead circuit breaker back light panel wiring
« Reply #3 on: November 20, 2018, 11:31:42 PM »
Depends on the capacity of the power supply, i'd say its being overloaded with all panels attached.  There are 20 light plates there, fairly long ones too. 
Depending how many bulbs there are per lightpate (judging by the length there could be up to 10-12 per plate, the bulbs pull 60mA each, so thats 0.6-0.7A per plate, so up to 15 Amps  just to run all those plates.

Offline jackpilot

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  • 737-800 Sim-Avionics/Full Cockpit FDS + OEM P3D V4
  • First Name: Jack
  • Home Location: Montreal / Canada
Re: boeing overhead circuit breaker back light panel wiring
« Reply #4 on: November 21, 2018, 08:44:05 AM »
I would nt feed 12v to make it brighter !!!
Use 5V and a good PSU
I use a 1200W PSU which feeds both OVH of the 737.



Jack

Offline kondrat

  • Forum GURU
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  • Posts: 37
  • Aviation Enthusiast
    • Boeing 777-200LR project
  • First Name: Denis Kondratenko
  • Home Location: Cambridge, Ontario
Re: boeing overhead circuit breaker back light panel wiring
« Reply #5 on: November 21, 2018, 11:14:55 AM »
Thanks guys,

I just bought new PSU and bingo, better result. 5v and much brighter.

Thanks again!

Denis

Boeing 777-200LR project
http://www.flikr.com/project777

 

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