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2.5 The Knee Down Function Does Not Work
Chapter 2: Troubleshooting Procedures
Page 2 - 38
™ Bed Service Manual (man241)
Yes
No
↓
→
11. Go to step 27.
12. Check the fuse at the power outlet (common) side in the transformer box
(see figure 3-4 on page 3-5). The fuse is good.
Yes
No
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Replace the fuse. If this solves the problem, go to “Final
Actions” on page 2-7. Otherwise, go to step 13.
13. Check the fuse at the inlet power (primary side) (see figure 3-4 on page
3-5). The fuse is good.
Yes
No
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14. Go to step 27.
15. Perform the following:
a. Set your VOM to read volts DC.
SHOCK HAZARD:
Use extreme care when checking live voltage. Do not touch live
terminals, wires, or ground. Failure to use caution could result in
serious electrical shock injury.
b. At P3, measure the voltage for the knee motor (pins 1 and 4) (see figure
c. The voltage is 12V DC +3V.
Yes
No
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16. Replace the cable from the control board to the knee motor. If this solves
the problem, go to “Final Actions” on page 2-7. Otherwise, go to step 27.
17. Replace the control board (see “Control Board” on page 4-5) The knee
down function now operates properly.
Yes
No
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→
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Содержание Century+ P1400
Страница 5: ...Revisions Page iv Century Bed Service Manual man241 NOTES...
Страница 17: ...Chapter 1 Introduction Page 1 4 Century Bed Service Manual man241 NOTES...
Страница 45: ...Warning and Caution Labels Chapter 1 Introduction Page 1 32 Century Bed Service Manual man241 NOTES...
Страница 47: ...Chapter 2 Troubleshooting Procedures Page 2 2 Century Bed Service Manual man241 NOTES...
Страница 53: ...Final Actions Chapter 2 Troubleshooting Procedures Page 2 8 Century Bed Service Manual man241 NOTES...
Страница 115: ...Chapter 3 Theory of Operation Page 3 2 Century Bed Service Manual man241 NOTES...
Страница 125: ...Theory of Operation Chapter 3 Theory of Operation Page 3 12 Century Bed Service Manual man241 NOTES...
Страница 129: ...Chapter 4 Removal Replacement and Adjustment Procedures Page 4 4 Century Bed Service Manual man241 NOTES...
Страница 191: ...Warranty Chapter 5 Parts List Page 5 4 Century Bed Service Manual man241 NOTES...
Страница 195: ...Exchange Policy Chapter 5 Parts List Page 5 8 Century Bed Service Manual man241 NOTES...
Страница 198: ...Base Module Chapter 5 Parts List Century Bed Service Manual man241 Page 5 11 5 NOTES...
Страница 206: ...Frame Surface Module Chapter 5 Parts List Century Bed Service Manual man241 Page 5 19 5 NOTES...
Страница 210: ...Hilow Drive Assembly Chapter 5 Parts List Century Bed Service Manual man241 Page 5 23 5 NOTES...
Страница 222: ...Automatic Contour Module Chapter 5 Parts List Century Bed Service Manual man241 Page 5 35 5 NOTES...
Страница 249: ...Chapter 6 General Procedures Page 6 2 Century Bed Service Manual man241 NOTES...
Страница 261: ...6 3 Siderail Lubrication Chapter 6 General Procedures Page 6 14 Century Bed Service Manual man241 NOTES...
Страница 263: ...Chapter 7 Accessories Page 7 2 Century Bed Service Manual man241 NOTES...
Страница 266: ...7 1 Roller Bumpers P818C08 Chapter 7 Accessories Century Bed Service Manual man241 Page 7 5 7 Adjustment None...
Страница 274: ...Schematic Wiring Diagram Wiring Diagram Label Back to Chapter 3...
Страница 275: ...Schematic Wiring Diagram Bed Exit II General Schematic Back to Chapter 3...
Страница 276: ...Schematic Wiring Diagram Control Board Back to Chapter 3...
Страница 277: ...Schematic Wiring Diagram Night Light P C Board Wiring Diagram Back to Chapter 3...