Cockpit

* User Profile

Welcome, Guest. Please login or register.

Login with username, password and session length

Who's Online

  • *Users: 0
  • *Guests: 57
  • *Total: 57

Our Discord

Author Topic: boeing overhead circuit breaker back light panel wiring  (Read 567 times)

Offline kondrat

  • Forum GURU
  • *
  • Posts: 37
  • Aviation Enthusiast
    • Boeing 777-200LR project
  • First Name: Denis Kondratenko
  • Home Location: Cambridge, Ontario
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

  • I may as well be Staff!
  • *
  • Posts: 527
  • Aviation Enthusiast
  • First Name: Mick
  • 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
  • *
  • 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!
  • *
  • Posts: 527
  • Aviation Enthusiast
  • 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

  • Moderator
  • I am chained to this website!
  • *
  • Posts: 4,110
  • 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
  • *
  • 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

 

FlightSimExpo 2019

FsExpo

COUNTDOWN TO WF2019


WORLDFLIGHT TEAM USA

Will Depart in...

Recent Posts

How to install DZUS fasteners?
by Buster99
[June 22, 2019, 04:12:34 PM]
Desert Air Spares - Trustworthy?
by kattz
[June 22, 2019, 12:40:51 PM]
Wanted - 737 Audio Panels - OEM
by jackpilot
[June 20, 2019, 12:26:51 PM]
Throttletek 737 Throttle For Sale
by kevinsayre
[June 19, 2019, 03:57:33 PM]
For sale - rudder pedals and linkages - pending to Craig
by Caflyt
[June 19, 2019, 07:49:14 AM]
Flooring Installed!
by Mach7
[June 18, 2019, 05:41:16 PM]
737-800 Arduino X-Plane Build
by kurt-olsson
[June 18, 2019, 11:26:12 AM]
737 Throttle Conversion OC + ProSim
by kattz
[June 16, 2019, 11:39:03 AM]
A friendly FYI on Boeing rudder pedals
by kattz
[June 15, 2019, 10:36:39 AM]
2020 Microsoft Flight Simulator - new at E3 2019
by 757Simulator
[June 14, 2019, 03:39:07 AM]
737 starter switch mechanism
by paulnd
[June 13, 2019, 02:58:39 PM]
Make up your mind, Microsoft!
by jmlohrenz
[June 12, 2019, 07:25:10 PM]
What have you done for your simulator today?
by C150DIY
[June 12, 2019, 12:53:27 PM]
Complete 737-800 cockpit - moving sale
by FaustoP
[June 12, 2019, 01:26:39 AM]
Flyengravity desktop MIP
by patiju
[June 10, 2019, 01:01:06 PM]
the perfect thing to complete your sim hanger
by fsaviator
[June 09, 2019, 03:12:50 PM]
Wanted - COMPLETE set of Boeing 727 or 737 rudder pedals
by kattz
[June 08, 2019, 01:26:09 PM]
Visual system screen by Northern Flight Sim for sale $500
by peterkwu
[June 08, 2019, 06:07:39 AM]
Wanted: GoFlight T8
by C150DIY
[June 07, 2019, 02:32:29 PM]
For Sale - CPFlight MCP737 + EFIS
by ZillaUK
[June 07, 2019, 09:54:58 AM]
737 FWD Overhead Switch Diagram
by bernard S
[June 07, 2019, 08:21:46 AM]
Change the Forum Theme to suit your own Needs.
by AdamMilstead
[June 07, 2019, 06:20:41 AM]
Aileron & Elevator jump back to center
by iwik
[June 06, 2019, 08:01:24 PM]
Join me on Vatsim Tonight
by Trevor Hale
[June 05, 2019, 05:17:13 PM]
Machinery for home cockpit building
by giaviv
[June 04, 2019, 04:12:10 PM]
PROMOCION STEERING FREE
by alvaro castillo
[June 04, 2019, 11:42:43 AM]
FLIGHTSIMEXPO LAUNCHES DISCOUNTED ADVANCE REGISTRATION FOR ORLANDO 2019 EVENT
by fsaviator
[June 03, 2019, 06:52:44 PM]
Question about linking the yokes
by jackpilot
[June 01, 2019, 02:22:10 PM]
Wanted: Jetmax 737
by nisx
[May 30, 2019, 01:49:24 AM]
Cessna 150 Builder
by C150DIY
[May 27, 2019, 04:59:48 AM]