Mailing List lml@lancaironline.net Message #55139
From: Bill N5ZQ <n5zq@verizon.net>
Sender: <marv@lancaironline.net>
Subject: RE: [LML] Re: Vision Microsystems VM 1000 problem
Date: Tue, 18 May 2010 03:04:36 -0400
To: <lml@lancaironline.net>
Message
Yep, it's user replaceable. I've replaced mine twice. You'll need to open up the CPU box and it's a chip that you'll need to replace. I don't believe that there are any generic replacements, you'll need to get the battery module from VM. As best as I can remember, it's about 50 or 60 bucks.
 
Bill Harrelson
N5ZQ 320 1,800 hrs
N6ZQ  IV under construction
 
 
 
 
 
-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Matt Hapgood
Sent: Monday, May 17, 2010 4:05 PM
To: lml@lancaironline.net
Subject: [LML] Re: Vision Microsystems VM 1000 problem

Nope, never replaced the battery, but it was replaced by VM about 1 year after installed (sent back to them for some repair work, including the Leaning mode fix, which they never did get fixed).

 

Do you know if the details on this battery replacement are on the LML?  If so, I’ll check, otherwise do you know where/how?  User servicecable?   Size?

 

Thanks,

 

Matt

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bill N5ZQ
Sent: Monday, May 17, 2010 3:36 PM
To: lml@lancaironline.net
Subject: [LML] Re: Vision Microsystems VM 1000 problem

 

Matt,

 

There is an internal battery in the VM1000 that needs to be replaced periodically. VM says about every 7 years or so, I think. Have you ever replaced this battery? If not, this would be the obvious first step.

 

Bill Harrelson

N5ZQ 320 1,800 hrs

N6ZQ  IV under construction

 

 

 

 

 

-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Matt Hapgood
Sent: Monday, May 17, 2010 11:31 AM
To: lml@lancaironline.net
Subject: [LML] Vision Microsystems VM 1000 problem

My VM1000 has always been a bit of problem, but now the problems have increased and I need to resolve them.  Any thoughts on any of these issues?  I’ve been flying the 360 since 2001 and I put the date the problem started in parentheses):

 

1.       Leaning mode (never worked since day one).  Pushing the button to go into the leaning mode has never functioned.  Just doesn’t do anything.

2.       Amps (February 2010).  I’ve noticed the amp-meter bouncing around.  It used to be fairly steady in the 18-20 amps range, but now it is more like 16 for a while, then bounces to 26 or something.  It’s not related to landing lights, radio com, fuel transfer pumps, or any evident change in load.  The alternator (B&C) is about 6 years old and the belt is, according to the A&P, okay but could stand to be a bit tighter.  Voltage regulator is B&C too.

3.       AutoTrack (March 2010).  Just stopped working.  Pushing the button for AutoTrack now does nothing.

4.       Fuel Remaining (May 2010).  Unable to add fuel to the tank. I can cycle to the “add fuel” point and then push buttons to add 10 gal units or 1 gal units – both register as “to be added”.  But then when I push the button to cycle out of the “Add” mode it doesn’t register the “add”.  So it always indicates zero fuel now and I can’t add any!!!  I’ve tried all sorts of amounts but nothing will work.  It’s been like this for 4 flights now… this is the straw that broke the camels back.  I need to get this fixed now.  NOTE:  I do still have a header tank gauge and separate totalizers on each wing.  I am NOT flying without knowing my fuel quantity… this is just another check.

 

Any help would be appreciated, including tips on how to get in touch with VM…

 

Thanks,

 

Matt

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