This page shows how to best mount the LapZ transponder inside the Kyosho
The transponder must be mounted 100% horizontal, otherwise you
may experience drop-outs in the registration. This is due to the fact that
the two IrDA transceivers (in the car and on the bridge) must
"look" straight at eachother, and not with an angle, as this may
severely dampen the light received. Keep this in mind when mounting the
Also, it is imperative that both the "spheres" on the IrDA
component is placed under the windshield, in a way that both are visible
when you put the body on, even from a small angle. Bear in mind that the
transponder just as well can be mounted at a 90degrees angle in reference
to the way they are mounted in these pictures, if that gives a better view
of the IrDA component.
Important! When mounting the transponder like this, it will activate
as soon as the batteries are inserted, and will draw power from the
batteries even if the car is switched off. Hence, if you plan on having
the transponder mounted like this for a long time, make sure you remove at
least one of the batteries, so that you don't drain the batteries.
However, since the transponder only draws less than 10mA current, there is no
rush (it will use 60 hours to drain 600mAh batteries).