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Chapter Three – Troubleshooting Guides
55
3.13 ROOM/READ LIGHT CONTROL TROUBLESHOOTING GUIDE
NOTE
Before proceeding, check Docker cable visually for proper connection and/or external damage Ensure Dock-
er cable is compatible with Nurse Call system being utilized. Check +5 VDC at various points called out in
the troubleshooting by using digital ground as a reference point (negative side of C18 on the litter CPU board).
Digital ground reference may also be used at headwall IFC board connector P1, pin 7. Prior to replacing any
boards, ensure applicable cables and connections are intact (visually and mechanically).
Depress each room/read light switch one at a time to isolate possible problem. Observe whether any switches
are not functioning properly. Isolate the problem to an individual siderail and then to an individual switch board
module. If bed is equipped with optional pendant, remove pendant from bed. If problems are isolated to the
pendant, replace the pendant.
PROBLEM/SYMPTOM
SOLUTION(S)
Room/Read lights do not turn on/off when
switches are pressed.
A. Check for +5 VDC at the following locations:
1.) Left siderail light keyboard (p/n 3000–406–
925), connector J1, pin 1.
2.) Right siderail light keyboard (p/n 3000–406–
909), connector J1, pin 1.
Using a voltmeter, verify switches are O.K. If volt-
age is present and switches are not O.K., replace
keyboard (see page 200–201 for board locations).
B. Check inside siderail Gatch/Fowler boards (p/n
3000–400–917, left inside & 3000–400–901, right
inside) for +5 VDC at connector P1, pin 10 for both
boards. If voltage is present and problem still ex-
ists, replace boards. Note: if Gatch/Fowler inner
siderail board is defective, all non–motion func-
tions will cease to work in the entire siderail.
C. Check headwall IFC (p/n 3000–303–933) for
+12 VDC at connector P6, pin 1. If voltage is not
present, replace headwall IFC board (see page
199 for board location). Place an ohmmeter across
the following pins of DB37 pin connector to check
for relay actuation:
1.) Room – pin 27 – light common
pin 21 – room light
2.) Read – pin 27 – light common
pin 21 – room light
These pins are across the corresponding relay
contact points. Ohmmeter should measure >1
M ohm normally and <2 ohms when siderail light
switches are pressed. If relays do not operate
correctly, replace headwall IFC board.
D. If lights are still uncontrollable, check litter CPU
board (p/n 3000–300–941) for voltages at following
connectors: (use pin 7 as digital ground reference)
1.) P10 right siderail, pin 10 –– +5 VDC
pin 5 –– +8 VDC
2.) P11 left siderail, pin 10 –– +5 VDC
pin 5 –– +8 VDC
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).
Содержание Secure 3000
Страница 78: ...Notes 78 ...
Страница 106: ...Notes 106 ...
Страница 110: ...Chapter Five Maintenance Procedures Litter 110 5 6 CPR CONTINUED A B C K J B Area 1 B D L A G H ...
Страница 111: ...Chapter Five Maintenance Procedures Litter 111 5 6 CPR CONTINUED E E F F VIEW 1 VIEW 2 TOP VIEW ...
Страница 129: ...Appendix A Assembly Drawings and Parts Lists 129 A 1 BASE DRAWINGS BASE ASSEMBLY P N 3000 200 000 ...
Страница 131: ...Appendix A Assembly Drawings and Parts Lists 131 A 1 BASE DRAWINGS CONTINUED BASE ASSEMBLY P N 3000 200 000 CONTINUED ...
Страница 139: ...Appendix A Assembly Drawings and Parts Lists 139 A 1 BASE DRAWINGS CONTINUED FOOT END BRAKE ASSEMBLY P N 3000 200 350 ...
Страница 141: ...Appendix A Assembly Drawings and Parts Lists 141 A 2 LITTER DRAWINGS LITTER ASSEMBLY MECHANICAL P N 3000 300 399 ...
Страница 147: ...Appendix A Assembly Drawings and Parts Lists 147 A 2 LITTER DRAWINGS CONTINUED LITTER COVER ASSEMBLY P N 3000 300 25 ...
Страница 184: ...Notes 167 2 ...
Страница 241: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 222 This page intentionally left blank ...
Страница 243: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 224 This page intentionally left blank ...
Страница 249: ...DH 3 94 3000 000 020 REV B 420 Alcott Street Kalamazoo MI 49001 ...