Cockpit

* User Profile

Welcome, Guest. Please login or register.

Login with username, password and session length

Who's Online

  • *Users: 1
  • *Guests: 16
  • *Total: 17

Our Discord

Author Topic: USB and 5V feed (resolved)  (Read 723 times)

Offline jackpilot

  • Moderator
  • I am chained to this website!
  • *
  • Posts: 3,987
  • Karma: +38/-0
  • 737-800 Sim-Avionics/Full Cockpit FDS + OEM P3D V4
  • First Name: Jack
  • Home Location: Montreal / Canada
USB and 5V feed (resolved)
« on: March 08, 2018, 09:57:19 AM »
I have a set of amplified  PC speakers dedicated to P3D ATC
input is a 3mm jack (OK)
power is a USB plug (not OK)

As I intend to locate them in the ceiling the USB power feed is impractical and I would like to substitute direct 5V from the OVH 5v bus.
If I cut the wire, i should find 2 wires, if yes how to make sure of the + and -
Any idea or better idea ?

« Last Edit: March 08, 2018, 02:25:11 PM by jackpilot »


Jack

Offline XOrionFE

  • I am chained to this website!
  • *
  • Posts: 1,692
  • Karma: +19/-2
  • First Name: Scott
  • Home Location: Chicago, IL
Re: USB and 5V feed
« Reply #1 on: March 08, 2018, 11:33:13 AM »
why not just plug in the end you cut off into usb jack and measure for voltage on the wires from the multimeter using a separate ground?

Offline jackpilot

  • Moderator
  • I am chained to this website!
  • *
  • Posts: 3,987
  • Karma: +38/-0
  • 737-800 Sim-Avionics/Full Cockpit FDS + OEM P3D V4
  • First Name: Jack
  • Home Location: Montreal / Canada
Re: USB and 5V feed
« Reply #2 on: March 08, 2018, 12:04:33 PM »
Separate ground ?

Actually the USB wire is really thin (1mm) and I m not sure to be able to identify the two wires supposedly in it

And if I try blind I have 50% chance to be right and 50% to blow it, right?  :P


Jack

Offline Bob Reed

  • Administrator
  • I am chained to this website!
  • *
  • Posts: 2,345
  • Karma: +11/-0
  • Bob the Builder!
  • First Name: Bob
  • Home Location: Holley, New York
Re: USB and 5V feed
« Reply #3 on: March 08, 2018, 12:16:04 PM »
Here is the pinout for a standard 2.0 USB port. Use a meter to determine which wire is witch.

https://theydiffer.com/difference-between-usb-2-0-and-3-0-cables/

Offline jackpilot

  • Moderator
  • I am chained to this website!
  • *
  • Posts: 3,987
  • Karma: +38/-0
  • 737-800 Sim-Avionics/Full Cockpit FDS + OEM P3D V4
  • First Name: Jack
  • Home Location: Montreal / Canada
Re: USB and 5V feed
« Reply #4 on: March 08, 2018, 12:31:39 PM »
Thanks Guys Good enough...I'll try  :D


Jack

Offline jackpilot

  • Moderator
  • I am chained to this website!
  • *
  • Posts: 3,987
  • Karma: +38/-0
  • 737-800 Sim-Avionics/Full Cockpit FDS + OEM P3D V4
  • First Name: Jack
  • Home Location: Montreal / Canada
Re: USB and 5V feed (resolved)
« Reply #5 on: March 08, 2018, 02:29:54 PM »
I managed to acess the inside of one speaker box and used Bob's pinout to locate the wires
Turned out with the ohm meter white positive and red ground ???

Then Scott method cut out the USB, plugged it in, and check with the voltmeter, confirming white + and red -   (chinese code?)

Thank you guys
« Last Edit: March 08, 2018, 02:31:06 PM by jackpilot »


Jack

Offline Bob Reed

  • Administrator
  • I am chained to this website!
  • *
  • Posts: 2,345
  • Karma: +11/-0
  • Bob the Builder!
  • First Name: Bob
  • Home Location: Holley, New York
Re: USB and 5V feed (resolved)
« Reply #6 on: March 08, 2018, 03:31:56 PM »
I managed to acess the inside of one speaker box and used Bob's pinout to locate the wires
Turned out with the ohm meter white positive and red ground ???

Then Scott method cut out the USB, plugged it in, and check with the voltmeter, confirming white + and red -   (chinese code?)

Thank you guys

Glad we could help!  :D

 

COUNTDOWN TO WF2018


WORLDFLIGHT TEAM USA

Will Depart in...

Recent Posts

737-800 Arduino X-Plane Build
by kurt-olsson
[Today at 05:31:45 PM]
Anyone using Project magenta with P3Dv4?
by Pantu
[Today at 05:17:11 PM]
Relay causes bad readings
by kurt-olsson
[Today at 05:16:22 PM]
What have you done for your simulator today?
by jackpilot
[Today at 02:55:02 PM]
Opencockpit Rotary Encoders
by Nolatron
[Today at 12:49:58 PM]
Where do i begin from here.
by kurt-olsson
[September 24, 2018, 11:32:29 AM]
John's List of 3D Printed Items for Flight Simulation
by blueskydriver
[September 23, 2018, 02:55:02 PM]
737NG Go-Around_Procedure
by bravolima
[September 23, 2018, 01:10:24 PM]
Memphis 727 Build
by kurt-olsson
[September 23, 2018, 10:01:29 AM]
OEM Throttle Quadrant Conversions?
by bernard S
[September 22, 2018, 07:29:48 AM]
For Sale - FSC Motorised Throttle Quadrant
by KyleH
[September 21, 2018, 09:18:02 PM]
Just to make sure i am not doing anything stupid
by kurt-olsson
[September 21, 2018, 01:57:12 PM]
My project, 737 in the basement.
by mickc
[September 21, 2018, 05:48:19 AM]
New guy intro and 727 cockpit for X-Plane project start
by Flying_Fox
[September 19, 2018, 05:06:50 PM]
Flying Polar Routes
by jackpilot
[September 18, 2018, 12:07:33 PM]
STEERING AND YOKE 737 PROMO
by navymustang
[September 17, 2018, 03:44:39 PM]
Monitor and keyboard arm
by navymustang
[September 17, 2018, 03:43:17 PM]
With 60 Days Left, We have a plan
by FredK
[September 17, 2018, 11:08:58 AM]
For Sale: CPFlight MCP 737 EL $400 USD Shipped Lower 48
by Steenos
[September 17, 2018, 11:01:18 AM]
INTRODUCTION
by bernard S
[September 15, 2018, 07:10:49 PM]
Wanted Pair of Headrests of this type!
by bernard S
[September 15, 2018, 06:43:09 PM]
Some Questions about Project Magenta CDU
by Pantu
[September 15, 2018, 10:35:41 AM]
GAPanel/FSUIPC coding
by sedge
[September 14, 2018, 02:22:31 PM]
Wanted! Real Boeing 737 TQ
by kurt-olsson
[September 14, 2018, 04:24:57 AM]
OEM window eye brow trim
by kurt-olsson
[September 14, 2018, 04:22:20 AM]
Linked Brakes
by blueskydriver
[September 14, 2018, 03:12:26 AM]
Mickey's Flightdeck - A Boeing 737-800 Cockpit on Youtube
by Extraterra
[September 13, 2018, 09:23:22 AM]
CDU hidden fire page
by Pantu
[September 12, 2018, 01:25:24 PM]
737NG parts for sale, most are REAL!
by 737NGer
[September 12, 2018, 11:22:50 AM]
A320 Sound (for homecockpit)
by okansacli
[September 12, 2018, 10:07:03 AM]