The iDRIVE has two angular transducers that measure the X and Y position of the joystick. It also has a
switch that closes when the joystick is pressed in, placing the mower in neutral. These signals are sent to a
mixing board located near the subassembly that transcribes the X and Y positions (0 – 5v analog signal) into
left and right wheel control signals (0 – 5V analog signal).
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Mixing Board Location
Confidential and Proprietary - Property of Techtronic Power Equipment - DO NOT COPY or DISCLOSE
iDRIVE Switch
Mixing Board
RYRM8021 42” ZTR Mower
RYRM8034 54” ZTR Mower
Mixing Board
RYRM8010 30” ZTR Mower
IMPORTANT NOTE
Epoxy potting may have seeped into the header ports and totally insulated all metal from DMM probes. There
should be some copper exposed, but if there is no exposed copper, either replace the Mixing Board to see if the
problem persists or cut away some insulation on the wire to access metal. Make sure to re-secure all wire
insulation if any is cut away.
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