Tech Note 103 Accelerometer Powering
with CCD Diode
When connecting a CMCP525/530
Transmitter to a Accelerometer that is already powered by another device
the CCD (Constant Current Diode) should be cut to prevent overpowering of
the Accelerometer by connection to both devices.
Simply cut one
end of the CCD loose from the circuit board with a small pair of wire cutters.
Lift slightly and place a small piece of heat shrink over the CCD to prevent
it from touching. The CCD can then be reattached, if required, using a soldering
iron.
When using a CMCP525/530 in a Dual Path configuration with
the CMCP/CMSS590 Enveloping Transmitter it is not necessary to cut the CCD
as the CMCP/CMSS590 has a jumper for disabling CCD power. Simply power with
the CMCP525/530 and disable power in the CMCP/CMSS590.