[NSRCA-discussion] JR DSM glitch - trouble-shooting.

[James Oddino]

Yes the regulator will shut down if it gets too hot and then recover  
when it cools.  See my previous email about a possible cause of the  
high current consumption.  The regulator will not cause the high  
consumption.

Jim


On Apr 25, 2009, at 4:37 PM, colin chariandy wrote:

> Accidentaly sent before completed. See below.
>
> --- On Sat, 4/25/09, cchariandy at yahoo.ca <cchariandy at yahoo.ca> wrote:
>
> From: cchariandy at yahoo.ca <cchariandy at yahoo.ca>
> Subject: [NSRCA-discussion] JR DSM glitch - trouble-shooting.
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> Received: Saturday, April 25, 2009, 7:30 PM
>
> I had a close call today with my R921 Rx in an Integral.
>
> I noticed on taxi out that the engine rev'd up and quickly back down  
> without any command. At first I thought I must have bumped the stick  
> by accident. Then just before take-off there was no responce from  
> the throttle for a second or two then it was back. I thought the 170  
> may have loaded up a little and didnt respond. It did that one more  
> time before I aborted the flight. However, I could'nt reproduce the  
> problem in the pits.
>
> Before powering down, I checked for holds or fades on the data  
> logger - nil.
>
> Battery voltage droped from 8.2V to 7.8V and 7.6 under 1A load. When  
> I re-charged it took 350mA and I was only on for 3-4 mins.
>
> Now...I did accidentally run the battery down to like 5V during  
> winter but it did eventually recharge.
>
> I'm using a Jaccio perfect switch/6V regulator, Jaccio 2000mAHr (1  
> season old)
>
> I think the Rx momentarily lost power. I'm sure if I change the Rx  
> pack and the regulator.
>
> Does anyone know if this regulator can fail and interupt the supply  
> then recover? Any explanation for the relatively high current  
> consumption...maybe a regulator issue...high Vdrop/RDSon?
>
> Colin.
>
>
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