Chapter Three – Troubleshooting Guides
51
3.10 NURSE CALL TROUBLESHOOTING GUIDE (CONTINUED)
PROBLEM/SYMPTOM SOLUTION(S)
Nurse Answer light (red LED) does not light when
nurse responds to nurse call (continued).
C. If both red siderail LED’s do not light, check
litter CPU board (p/n 3000–300–941) for +5 VDC
at connectors:
1.) P10, right siderail, pin 10 (pin 5, +8 VDC, pin 7,
digital ground)
2.) P11, left siderail, pin 10 (pin 5, +8 VDC, pin 7,
digital ground). (See page 199 for board location).
If voltage is not present, check fuse F1. If fuse is
O.K., and voltage is not present, replace litter CPU
board (see page 115).
D. Check headwall IFC board p/n 3000–303–933
for +12 VDC at connector P6, pin 11. Replace
board, if necessary.
E. If nurse is unable to answer through speakers,
but can acknowledge call, check speakers with
T.V. radio signal. (See troubleshooting section
3.12, page 53, if speakers do not work.)
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