QM-7 SERIES SERVICE MANUAL
PAGE 4.1
JANUARY 2012SUNRISE MEDICAL
Section 4
R-net Troubleshooting
Chair Will Not Power Up
2
1
3
1. Check for battery voltage at the hand control
using a Multimeter. Connect the Multimeter
between the two outside pins (figure 4.1.2), pin 1
is positive (+), pin 2 is negative (-).
3. If battery voltage is not present, (figure 4.1.3)
then replace the batteries.
If battery voltage is low (figure 4.1.4) then recharge
the batteries and retest
Fig. 4.1.1
Fig. 4.1.3
2. If full battery voltage is present, replace the
following components in this order:
a. Communication Cable
b. Hand control
c. Control module. (refer to the Control Module
Replacement section of this manual.)
d. Retest as necessary.
Fig. 4.1.2
Fig. 4.1.4