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Chapter Three – Troubleshooting Guides
61
3.16 DYNAMIC MATTRESS SYSTEM TROUBLESHOOTING GUIDE – OP-
TIONAL EQUIPMENT (CONTINUED)
DMS does not work when power is switched on.
(Manual LED in foot board and/or siderails does
not light when DMS is switched on.)
(Continued)
G. Check litter CPU board (p/n 3000–300–941)
and verify connection to serial IFC board. Using
an oscilloscope, look for periodic signal at DMS
port (pins 4–5, 10–11). Signals at this port use
DMS power supply negative pin (connector J3, pin
1) as reference, not litter CPU digital ground. Sig-
nal from litter CPU passes through serial IFC
cable and board (p/n 3000–300–840 & 3000–300–
965). If cables and connections are O.K., and cor-
rect signal is not there, replace litter CPU (see
page 115).
DMS Air Loss LED comes on (located on foot-
board).
A. Check air connections between bladder and
control unit inside mattress.
B. Check for leak in bladder. Replace bladder or
control unit, if necessary.
C. If air loss is apparent and Air Loss LED does
not light after 30 minutes of continuous pump op-
eration, use a voltmeter to check LED in foot
board module (p/n 3000–502–951). Note: Moder-
ate air loss may not cause yellow LED to light.
Pump operation must have been continuous.
Check for +5 VDC at connector P1, pin 3 on DMS
foot board module (see page 202 for board loca-
tion). If voltage is present and problem still exists,
replace foot board DMS board (p/n 3000–502–
951).
Cannot adjust Firm or Soft but otherwise system
functions properly.
A. Verify unit is operating in manual mode.
B. Using a voltmeter, check switches and LED’s in
siderail module boards for +5 VDC at connector
J1, pin 1 for both modules (see pages 200 & 201
for board locations). If voltage is present and
problem still exists, replace board(s) as necessary
(right DMS module board p/n 3000–402– 903, left
DMS module board p/n 3000–402–919).
Cannot switch from Auto to Manual and/or Manual
to Auto mode but otherwise system functions
properly.
A. Using a voltmeter, check switches and LED’s in
siderail module boards and foot board module
board (right DMS module board p/n 3000–402–
903, left DMS module board p/n 3000–402–919,
foot board DMS module p/n 3000–502–951) for +5
VDC at connector J1, pin 1 for both siderail boards
and at connector P1, pin 3 for the foot board mod-
ule, using pin 6 as a reference point. If voltage is
present and problem still exists, replace board(s).
B. Check connections and signals from P12 of
CPU board through DMS footboard module. Refer
to section G above for voltage ground reference
points. Replace board and cable assemblies, if
necessary.
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 ...