Quickie Rhythm, Technical & Service Manual

Page: 91 / 182

91
©2006 Sunrise Medical
SEATING SECTION
Tilt or Lift, check Encoder Reset: 7.
Disconnect the 6-pin actuator connector (A) a.
from the control module.
Connect a multimeter across pins 3 and 4 of the
b.
6-pin actuator connector. Check for continu-
ity when the Encoder Reset switch is one and
closed by manually operating the rocker switch.
Replace the Tilt or Lift module if the problem is
c.
not solved. Retest the chair.
Replace the control module if the problem is not 8.
solved. Retest the chair.
A
Fig 3.59
Trouble Shooting Seating Function other than Recline
Verify that the seating functions illuminate on the input
device (joystick or Enhanced Display). If not, or if any
fault codes are displayed, refer to the Delphi trouble-
shooting section of the service manual.
Locate the control module on the wheelchair. 1.
Note: The control module is located at the rear of
the base on a Rhythm and between the batteries
on a Groove.
Verify the connector leading to the suspect
2.
actuator is mated to the control module. If not,
reconnect and retest. Note: Power seat (lift) il-
lustrated.
If the connectors are mated, disconnect them and
3.
measure resistance to the actuators. Refer to the
following
fi gure for the pin locations. Compare the
readings to the table below.
Fig 3.60
Actuator Approximate
Reading In Mid-
Stroke Approximate
Reading at Home
Position
Left Leg (for Power
Center Mount ELR) 4 ohms 2 meg ohms or
greater
Left Leg or Right
Leg (for Power ELR) 8 ohms 2 meg ohms or
greater
Tilt 2 ohms 2 ohms
Elevating Seat 2 ohms 2 meg ohms or
greater
Armature Pins
Fig 3.61