[NSRCA-discussion] 12X Failure

[Jon Lowe]

Troy, thanks for posting the link.  They should have mailed it to every 
registered 12x owner.  I don't know why they made such a complicated 
charger if it doesn't peak detect.  Think I will go back to a standard 
wall wart at a lower charge rate for overnite charging.  High capacity 
NiMh cells (anything over 1650 mah) do NOT like to be overcharged.  In 
fact Radical RC recommends charging them at less than C/10.  Their 
discussion on high capacity NiMh cells is a good read.  See the 
discussion about 2500mah cells about halfway down this page:

http://www.radicalrc.com/shop/?shop=1&cart=3170843&cat=20

I'm glad Horizon FINALLY addressed the problem of the battery coming 
loose in the transmitter which is at the bottom of the link. The 
battery cassette doesn't have to move far to have it come loose and 
lose contact.   I lost an airplane early this year (not a 2m) because 
of it.  It has been an issue since they put the cassette in the 10x and 
carried the design over to the 12x.  I know of several people who lost 
airplanes because the pack came loose and the transmitter shut off 
during flight.  The way they have the charge plug going directly into 
the pack causes the pack to loosen when you pull the plug out after 
charging.  I solved the problem by drilling a small hole in the bottom 
of the transmitter body and thru the latch tab on the battery door and 
put a tiny sheet metal screw in holding the door shut.  A friend just 
uses a piece of packing tape to hold his door solidly shut.  The door 
design aggravates the issue because the latch doesn't really lock 
solidly into place.  I wish they had gone back to the tried and true 
battery lead and plug design.

I emailed Horizon about the issue and never received a reply.  My Dad, 
a JR Team Member, did likewise, and did not receive a reply.  In fact, 
I have NEVER received a reply to emails sent to Horizon.  However, 
their service department is second to none.  Turnaround is really fast, 
and they do a good job.

Jon Lowe

-----Original Message-----
From: glmiller3 at suddenlink.net
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Tue, Nov 3, 2009 6:34 am
Subject: Re: [NSRCA-discussion] 12X Failure










Troy,

I just actually read the battery bulletin linked in you note.  I like 
the 12X
battery even less now.

So I guess in Japan they have 10 hours to sit around their shop 
continuously
monitoring their transmitter batteries temperature and intermittently 
checking
it's actual voltage....well welcome to america- I don't!

Any one know of a good replacement battery system for the 12 X?

G
---- Troy Newman <troy at troynewman.net> wrote:

=============
Try a different TX battery.

I have heard reports of this screen flashing issue with bad TX
batteries. It works fine in the system menu because it's not
transmitting. As soon as it tries to transmit the battery can't handle
the load. If you have a 10X the battery will fit in the 12X and work
just fine.

The PC program is not data safe. Data Safe as a product was a Horizon
hobby product that was an aftermarket product that saved the program as
a file on your PC....It was not a JR Japan product.

The 12X comes with a program that allows you to back up and edit the
programs on the PC. It came with your 12X as a free accessory. It is 12X
specific. Works very very well.

The reason data safe doesn't work is because the 12X was not around when
Data Safe or Data Safe Ultra was written by a 3rd party vendor.

By the way the 12X program only does the 12X, but is very cool in that
you can see and print all settings, and even edit setting right on the
PC then load it back into the TX.


JR Japan has another program that has the same look and feel as the 12X
program, but it works with the older radios. It looks exactly the same
but because it goes backwards in compatibility it doesn't do the 12X.

Onto your 12X it's not a bad a idea to have HH check it out, but I would
bet it's a battery issue. On another note the charger that comes with
your 12X is not a peak detection charger...even though it kind of looks
like one and the manual seems to imply that it is. This charger should
not be used on the 12X battery for than 10hrs. The battery will become
very hot and will shorten its life. A bulletin was issues earlier this
year regarding the charger.

http://www.horizonhobby.com/Products/Support.aspx?ProdID=JRP12001

If your charger was left on for 2-3 days like some folks have reported
before the light when solid, and or the battery got very hot this could
be the reason for the battery failure. Contact HH and they will be able
to help you. In the mean time try a good 10X battery cartridge if you
have one. If not let me know offline and I'll send you mine from my 10X
to hold you over or at least get everything off the 12X you have.

Troy Newman
Team JR / Horizon Hobby
_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion

_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion