Hill-Rom Affinity P3700E - Head Section Malfunction

2.2 Head Section Malfunction
Chapter 2: Troubleshooting
Affinity® Four Birthing Bed Service Manual (195826 REV 2) 2 - 11
2
10. Replace the logic control P.C. board. This solves the problem.
Yes No
Contact Hill-Rom technical support.
11. Go to “Final Actions” on page 2-9.
2.2 Head Section Malfunction
The head section motor does not operate. If the motor operates, but has other problems, go to “Head
Drive Operation Failures” on page 2-15.
1. The other bed functions operate, and the head section does not operate on the opposite siderail.
Yes No
Troubleshoot the siderail control panel. Go to Procedure 2.1 on page 2-9.
2. Check the CPR mechanism. It is adjusted correctly so that the CPR release at the head motor is not
under tension when the CPR handles are in the resting position.
Yes No
Adjust the CPR mechanism (see Procedure 4.7 on page 4-14). If this solves the
problem, go to “Final Actions” on page 2-9. Otherwise, go to Step 3.
3. Use the CPR handles to release the head section, and raise it by hand. The head section raises
smoothly.
Yes No
Check the head drive motor for visible damage. If there is visible damage, replace
the head drive motor (see Procedure 4.6 on page 4-12). If this solves the problem,
go to “Final Actions” on page 2-9. Otherwise, go to Step 4.
4. Remove the top motor cover and access the control board (see Procedure 4.1 on page 4-3). Make
sure that the head motor connections are attach. The head motor is securely plugged into the
control board.
Yes No
Disconnect and connect the electrical connector and make sure that it is securely
plugged in. If this solves the problem, go to “Final Actions” on page 2-9. Otherwise,
go to Step 5.
5. Set the multimeter to read DC volts (V DC). Put the positive lead on pin 1 of the P4 connector (see
Figure 2-2 on page 2-3), and the negative lead on pin 2 of the P4 connector. The voltage measures
24-35 V DC when the Head Up control is activated, and -24 to -35 V DC when the Head Down
control is activated.
Yes No
Replace the logic control P.C. Board (see Procedure 4.21 on page 4-36). If this solves
the problem, go to “Final Actions” on page 2-9. Otherwise, go to Step 6
6. Replace the head drive motor. The head drive functions.
Yes No
Replace the logic control P.C. Board (see Procedure 4.21 on page 4-36). If this solves
the problem, go to “Final Actions” on page 2-9. Otherwise, contact Hill-Rom
customer support.
7. Go to “Final Actions” on page 2-9.