PS Magazine - TB 43-PS-688

PS, The Preventative Maintenance Monthly

ISSUE 688

MARCH 2010
PS Magazine - TB 43-PS-688 - Page 23 of 33
43
PS 688
MAR 10
If you must use the LLDR before you get
the updated software, there is a work-around
that can temporarily solve the problem.
You’ll need the operator’s manual for the
LLDR, TM 11-5855-315-12&P. Make sure
you have the latest version of the manual
dated 15 May 08.
Manually input the local MAGVAR by
following the instructions on Page 2-35 of the
TM. Check that the MAGVAR was correctly
entered by powering the TLM down, then up
and following the instructions again from the
TM. Remember to verify the MAGVAR is the
most current for your area before providing
coordinates that will require a call for Fre
based solely on the LLDR coordinates.
Start by checking the LLDR serial number to see if it is between 1301 and 1900.
If it’s not, stop. You’re good to go.
If it is, bring up the system information screen. The top line will say
APP PART
NO.
and then give a string of numbers. If no string of numbers is shown after
APP
PART NO.
, or if the last three digits are
011
, you’re good to go.
If the last three digits of that string are
008
,
009
or
010
, then the TLM has software
that needs to be updated.
This update must be done by the manufacturer. If possible, contact your local
CECOM or TACOM LAR to get the information you need to turn in your LLDR for
updating. They will also have a copy of the SOUM.
If you cannot contact a LAR, call or email: Paul Woodman, DSN 654-3481,
(703) 704-3481,
paul.woodman@us.army.mil
,
or Mauricio Martinez, DSN 654-
3320, (703) 704-3320,
mauricio.d.martinez@us.army.mil
Rangefinder
Software
Error Needs
Correction!
AN/PED-1 LLDR…
Rangefinder
Software
Error Needs
Correction!
some an/ped-1
lightweight laser
designator range
finders (lldr),
nsn 1240-01-455-1
7
91,
have a serious safety
hazard due to a
software error.
that’s the word
in cecom lcmc
safety of use
message (soum)
2009-001 that
came out in
september of
last year.
remember, this work-
around is only temporary.
You need to get the
software updated
asap!
The software
error affects
LLDR’s target
locator modules
(TLM), NSN 1240-
01-510-1022, on
LLDRs with a serial
number between
1301 and 1900.
The error makes the
GPS circuit card in
the TLM
unable
to
update the magnetic
variance (MAGVAR)
angle.
This could result
in a
gross error
in target locations
calculated by
the TLM.
Hopefully, by
now, all LLDRs
have been fixed
and the problem
is no longer a
problem.
But, just in case
a few were missed,
here’s how you can
make sure your
LLDR is clean and
green.
that
building
there!
where
are we
aiming?
uh-oh…
y’know, I remember
reading something
about a problem
with these in the
latest ps.
what
did it
say?
mumble mumble
software error
mumble mumble
gross error in
target locations!
chief—we
can’t use this
until we know
if the glitch
got fixed!
keep
reading!
688.42-43.indd
1-2
2/5/10
10:23:52 AM
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