Hill-Rom Affinity P3700E - Battery Charger and CPR Release Malfunctions

2.16 Battery Charger Failure
Chapter 2: Troubleshooting
2 - 20 Affinity® Four Birthing Bed Service Manual (195826 REV 2)
3. Connect the bed to AC power. The battery indicator flashes to show that the battery is charging.
Yes No
Go to Step 6.
4. Permit the battery to fully charge and disconnect the bed from the AC power. If this solves the
problem, go to
“Final Actions” on page 2-9. Otherwise, continue to Step 6.
5. Visually examine for loose connections on cable assemblies and electrical wires. All cable
connections and electrical wires are correctly secured.
Yes No
Attach the cable connections and electrical wires. If this solves the problem, go to
“Final Actions” on page 2-9.
6. Set the multimeter to measure resistance and check the battery fuse for electrical continuity. The
battery fuse is in good condition.
Yes No
Replace the battery fuse (see Procedure 4.20 on page 4-33). If this solves the
problem, go to “Final Actions” on page 2-9. Otherwise, go to Step 7.
7. Set your multimeter to measure DC volts (V DC). Measure the voltage at the battery. The voltage is
below 23 V DC.
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, continue to Step 8.
8. Replace the two batteries in the battery backup assembly (see Procedure 4.20 on page 4-33). This
solves the problem.
Yes No
Contact Hill-Rom Technical Support.
9. Go to “Final Actions” on page 2-9.
2.16 Battery Charger Failure
1. Make sure that the bed is plugged into a wall power source.
2. Remove the top motor cover (see Procedure 4.1 on page 4-3) and set the multimeter to read DC
volts (V DC).
3. Remove the battery connector from the logic control P.C. board.
4. Put the positive probe on pin 1 of the P5 connector. Put the negative probe on pin 1 of the R9
resistor. The voltage is 26.4-28.4 V DC
Yes No
Replace the logic control P.C. board (see Procedure 4.21 on page 4-36). If this does
not solve the problem, contact Hill-Rom Technical Support.
5. Replace the battery (see Procedure 4.20 on page 4-33). If this does not solve the problem, contact
Hill-Rom Technical Support.