Hill-Rom Century+ P1400, Service Manual

Page: 93 / 277

2.6 The Bed Up Function Does Not Work
Chapter 2: Troubleshooting Procedures
Page 2 - 48 ™ Bed Service Manual (man241)
a. Unplug the bed from its power source.
SHOCK HAZARD:
Disconnect the battery backup. Failure to do so could result in personal
injury or equipment damage.
b. If applicable, disconnect the battery backup (see “Battery Backup Box”
on page 4-8).
c. Set your VOM to measure ohms.
d. At the test port (P200) (see figure 2-10 on page 2-44), disconnect the
cable that connects test port to the siderail with the inoperative bed up
function.
e. In the cable (P17 or P18), check the resistance between VCC
(common) (pin 7) and the bed up function (pin 1) (see figure 3-1 on
page 3-3, and figure 3-4 on page 3-5).
f. The VOM ohm reading is “open” (near infinite).
Yes No
↓ →
Go to step 26.
24. Perform the following:
SHOCK HAZARD:
Unplug the bed from its power source. Failure to do so could result in
personal injury or equipment damage.
a. Unplug the bed from its power source.
SHOCK HAZARD:
Disconnect the battery backup. Failure to do so could result in personal
injury or equipment damage.
b. If applicable, disconnect the battery backup (see “Battery Backup Box”
on page 4-8).
c. Set your VOM to measure ohms.
d. At the test port (P200) (see figure 2-10 on page 2-44), disconnect the
cable that connects to the siderail with the inoperative bed up function.
e. In the cable (P17 or P18), check the resistance between VCC
(common) (pin 7) and the bed up function (pin 1) (see figure 3-1 on
page 3-3, and figure 3-4 on page 3-5).
f. While holding the VOM probes in place, depress the bed up button.