|
-
POSTING RULES
-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|
07-25-2014, 04:56 PM
|
 |
fugio ergo sum
|
|
Join Date: Apr 2006
Location: Carlsbad, NM
Posts: 1,912
|
|
I've burned up 3 or 4 strobe switches. My latest fix is to leave that switch on all the time. Working so far.
__________________
Larry Pardue
Carlsbad, NM
RV-6 N441LP Flying
Last edited by n5lp : 07-25-2014 at 05:37 PM.
|
07-25-2014, 05:33 PM
|
 |
|
|
Join Date: Jan 2005
Location: Victoria, Canada
Posts: 2,247
|
|
Quote:
Originally Posted by rocketbob
Taking voltage readings at various points isn't a good way to troubleshoot.
Because...V=I*R.
If I (current) is very low, the few microamps of current passing thru the voltmeter with a high resistance R, voltage at the switch will read close to the battery voltage.
The real test is to disconnect the switch altogether and measure the resistance with it on. If its more than a few milliohms, it needs to be replaced.
|
Speaking of Ohm's Law, strobe power supplies are, like most switching power supplies, negative resistance devices.
What I mean is that as the input voltage falls, the input current rises in order to provide a constant output power. Any problems with the input power feed will lead to a thermal runaway... A bad crimp, a bad switch or breaker. Keep your eye on this at every Annual.
__________________
===========
V e r n. ====
=======
RV-9A complete
Harmon Rocket complete
S-21 wings complete
Victoria, BC (Summer)
Chandler, Az (Winter)
|
07-26-2014, 09:46 PM
|
|
|
|
Join Date: Jul 2014
Location: Ft Worth, Tx
Posts: 6
|
|
Voltage loss
You might find a partially broken conductor or if there is a termination(butt splice, terminal strip, etc) between the switch and the load a loose or damaged connection will actually become a heater. If a switch is going bad, you should derate the replacement.
|
07-27-2014, 10:00 PM
|
 |
|
|
Join Date: Dec 2004
Location: I live in on the Rosamond Skypark (CA) and am married to Victoria (Tuppergal).
Posts: 982
|
|
SWITCH!!!!! Thank you all  Rosie
__________________
Paul A. "Rosie" Rosales
Rosamond Skypark (L00), CA
RV-6A, 4200+ hours since 7/4/2000
|
07-27-2014, 11:01 PM
|
 |
Forum Peruser
|
|
Join Date: Jan 2005
Location: Austinville, Alabama
Posts: 2,455
|
|
Glad you found the culprit, Rosie! Congratulations!
__________________
Don Hull
RV-7 Wings
KDCU Pryor Field
Pilots'n Paws Pilot
N79599/ADS-B In and Out...and I like it!
?Certainly, travel is more than the seeing of sights;
it is a change that goes on, deep and permanent, in the ideas of living." Miriam Beard
|
07-28-2014, 05:12 AM
|
|
|
|
Join Date: Feb 2005
Location: Chesterfield, Missouri
Posts: 4,514
|
|
Quote:
Originally Posted by Rosie
SWITCH!!!!! Thank you all Rosie
|
I recently was about to tear into my Kubota diesel engine because it was cutting in and out during operations - some suggested check your seat safety switch.
That was an easy fix!!
__________________
RV-12 Build Helper
RV-7A...Sold #70374
The RV-8...Sold #83261
I'm in, dues paid 2019 This place is worth it!
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 05:09 PM.
|
Linear Mode
