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Burnt out MAC indicator?

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Larry Bowen

Joined: 09 Jan 2006
Posts: 802
Location: NC, USA

Posted: Tue May 30, 2006 6:54 pm Post subject: Burnt out MAC indicator?

One of the rectangluar LED's on my MAC pitch trim indicator seems to be

burnt out.  Am I the first to have this happen?  Guess the only fix is to

replace the whole thing? ($86!)



-

Larry Bowen

Larry(at)BowenAero.com

http://BowenAero.com

_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress...

rv8ch

Joined: 10 Jan 2006
Posts: 250
Location: Switzerland

Posted: Tue May 30, 2006 11:00 pm Post subject: Burnt out MAC indicator?

 	  Quote: 	
		   One of the rectangluar LED's on my MAC pitch trim indicator seems to be

 burnt out.  Am I the first to have this happen?  Guess the only fix is to

 replace the whole thing? ($86!)


	


Hi Larry,



You might want to check on the GRT yahoo group to see if anyone

wants to sell theirs - most of the GRT EFIS systems show the

trim on the EFIS.



Just as an aside, do you actually use the trim indicators very

much while flying, or is it just to set the trim at takeoff?



-- 

Mickey Coggins

http://www.rv8.ch/

#82007 finishing

do not archive

_________________
Mickey Coggins
http://www.rv8.ch/

recapen(at)earthlink.net
Guest

Posted: Wed May 31, 2006 3:50 am Post subject: Burnt out MAC indicator?

I had this happen to me too.  I sent an e-mail to RayAllenCo and they took care of it!



YMMV - but they were good to me!



--

seiders(at)bellsouth.net
Guest

Posted: Wed May 31, 2006 4:47 am Post subject: Burnt out MAC indicator?

Larry you are right about that. I recently replaced mine after losing 

several leds over a span of about 1 year. Call Ray Allen. He may cut you a 

little slack on the replacement.

Dick

At 10:52 PM 5/30/2006, you wrote:

 	  Quote: 	
		  



One of the rectangluar LED's on my MAC pitch trim indicator seems to be

burnt out.  Am I the first to have this happen?  Guess the only fix is to

replace the whole thing? ($86!)



-

Larry Bowen

Larry(at)BowenAero.com

http://BowenAero.com

mstewart(at)iss.net
Guest

Posted: Wed May 31, 2006 5:23 am Post subject: Burnt out MAC indicator?

Larry I think I may have a couple of these in my hanger.

Will check this weekend and if I have it Ill send it to you.

Mike

Do not archive.

--

Larry Bowen

Joined: 09 Jan 2006
Posts: 802
Location: NC, USA

Posted: Wed May 31, 2006 5:56 am Post subject: Burnt out MAC indicator?

Many thanks.



-- 

Larry Bowen

Larry(at)BowenAero.com

http://BowenAero.com



Stewart, Michael (ISS Atlanta) wrote:

[quote] 

 <mstewart(at)iss.net>



 Larry I think I may have a couple of these in my hanger.

 Will check this weekend and if I have it Ill send it to you.

 Mike

 Do not archive.

 --

_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress...

Larry Bowen

Joined: 09 Jan 2006
Posts: 802
Location: NC, USA

Posted: Wed May 31, 2006 5:56 am Post subject: Burnt out MAC indicator?

Thanks for all the input.  I'll give Ray a call and if that doesn't pan

out I'll get the parts book and soldering iron or check for someone

selling one.

Mickey - I reference it almost anytime I'm adjusting it.  I know what the

normal positions are for my plane during different phases of flight, so I

can confirm everything is normal in regards to trim.

-- 

Larry Bowen

Larry(at)BowenAero.com

http://BowenAero.com

Richard Seiders wrote:

 	  Quote: 	

 Larry you are right about that. I recently replaced mine after losing

 several leds over a span of about 1 year. Call Ray Allen. He may cut you a

 little slack on the replacement.

 Dick

 At 10:52 PM 5/30/2006, you wrote:

>

>

>One of the rectangluar LED's on my MAC pitch trim indicator seems to be

>burnt out.  Am I the first to have this happen?  Guess the only fix is to

>replace the whole thing? ($86!)

>

>-

>Larry Bowen

>Larry(at)BowenAero.com

>http://BowenAero.com

>

>

_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress...

low pass

Joined: 10 Jan 2006
Posts: 32
Location: Houston

Posted: Wed May 31, 2006 6:04 am Post subject: Re: Burnt out MAC indicator?

I lost a couple of elements in several of mine after my voltage regulator failed and they saw high voltage.  Just something you might want to check.



Bryan

lifeofreiley2003(at)yahoo
Guest

Posted: Wed May 31, 2006 6:32 am Post subject: Burnt out MAC indicator?

That's a great idea Mickey. With everyone updating to the glass there should be a stack of used indicators out there. I really don't know and want to clarify, are these LED indicators very accurate?

   

  Darrell

   

  



Mickey Coggins <mick-matronics(at)rv8.ch> wrote:

  



 	  Quote: 	
		   One of the rectangluar LED's on my MAC pitch trim indicator seems to be

 burnt out. Am I the first to have this happen? Guess the only fix is to

 replace the whole thing? ($86!)


	


Hi Larry,



You might want to check on the GRT yahoo group to see if anyone

wants to sell theirs - most of the GRT EFIS systems show the

trim on the EFIS.



Just as an aside, do you actually use the trim indicators very

much while flying, or is it just to set the trim at takeoff?



-- 

Mickey Coggins

http://www.rv8.ch/

#82007 finishing

do not archive





		

---------------------------------

Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls.  Great rates starting at 1&cent;/min.

mstewart(at)iss.net
Guest

Posted: Wed May 31, 2006 6:58 am Post subject: Burnt out MAC indicator?

I felt they were accurate enough for our use in RV's

Mike

Do not archive.



Had one led burn out once. Of course it was my tak-off position one:)

Never replaced it.

--

Ted French

Joined: 09 Jan 2006
Posts: 54
Location: Kelowna BC Canada

Posted: Wed May 31, 2006 7:00 am Post subject: Burnt out MAC indicator?

I lost the indicator bars in mine as well. I had it wired so it came on with

the master and when starting, I suspect that the voltage surges zapped it.

Rewired it to run off an avionics master and no more problems.



Do Not Archive



Ted French

RV-10  finish

--

_________________
Ted French
RV-10 fuselage

lifeofreiley2003(at)yahoo
Guest

Posted: Wed May 31, 2006 7:54 am Post subject: Burnt out MAC indicator?

I'm thinking about leaving the LED out all together. There should be a way to install just a light for a generic takeoff position, maybe with some sort of rheostat or potentiometer setup? Any ideas? 

   

   

  Darrell 

   

   

  



"Stewart, Michael (ISS Atlanta)" <mstewart(at)iss.net> wrote:

  



I felt they were accurate enough for our use in RV's

Mike

Do not archive.



Had one led burn out once. Of course it was my tak-off position one:)

Never replaced it.

--

tcervin(at)valkyrie.net
Guest

Posted: Wed May 31, 2006 2:58 pm Post subject: Burnt out MAC indicator?

Add me to the list! I had 26 hours on my 6-A when parts of my trim indicator 

wouldn't light. Called Ray

Allen and they said to send it in for a look see but that will have to wait 

for the annual in October as I am having to much fun right now.

                                                                             

                                                             Tom in Ohio

---

greg(at)itmack.com
Guest

Posted: Wed May 31, 2006 4:38 pm Post subject: Burnt out MAC indicator?

Mickey, I've ordered the GRT EFIS and have been reading the manuals but see 

no reference to trim inputs.  Where are they mentioned?  BTW I'm not using 

the EIS if that is where it goes.



Regards

Greg



 	  Quote: 	
		  

 Hi Larry,



 You might want to check on the GRT yahoo group to see if anyone

 wants to sell theirs - most of the GRT EFIS systems show the

 trim on the EFIS.



 Just as an aside, do you actually use the trim indicators very

 much while flying, or is it just to set the trim at takeoff?



 -- 

 Mickey Coggins

 http://www.rv8.ch/

 #82007 finishing

 do not archive

rv8ch

Joined: 10 Jan 2006
Posts: 250
Location: Switzerland

Posted: Thu Jun 01, 2006 12:42 am Post subject: Burnt out MAC indicator?

Greg(at)itmack wrote:

 	  Quote: 	
		   

 Mickey, I've ordered the GRT EFIS and have been reading the manuals but see 

 no reference to trim inputs.  Where are they mentioned?  BTW I'm not using 

 the EIS if that is where it goes.


	




The GRT guys seem to be a bit behind on their website updates,

and documentation updates.  I learned about this on the

GRT_EFIS yahoo group.  Here's a picture of the trim indicators

on the screen from Mike Schipper's website:



  http://www.my9a.com/finish15.asp  (it's about two screens down)



Mike drew a nice wiring diagram, but I couldn't find it

on his site.  I uploaded it here:



http://img93.imageshack.us/img93/9839/grtefistrimwiring1zj.jpg



The Yahoo group is good - check it out!



  http://groups.yahoo.com/group/GRT_EFIS/

-- 

Mickey Coggins

http://www.rv8.ch/

#82007 finishing

do not archive

_________________
Mickey Coggins
http://www.rv8.ch/

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