Covidien INVOS 5100C - Check Fuses; Who to Contact for Technical Service

Troubleshooting Techniques
Operator's Manual 9-7
 Caution:
Do not attempt to perform any service or tamper with the warranty seal unless you have been
authorized in writing by Covidien. Repairs made by anyone not authorized by Covidien during the
warranty period will void the product warranty.
This section provides troubleshooting assistance. The system diagram can be used when
attempting to isolate the cause of a problem (see FigureA-1.and sections 9.8.1 Who to Contact for
Technical Service, 9.8.2 Check Fuses, 9.8.3 Troubleshooting Chart, and 9.8.4 Troubleshooting the Digital
Output).
9.8.1 Who to Contact for Technical Service
For additional assistance troubleshooting, contact Covidien’s customer service department at
800 635 5267, Customer.Service-RMS@Covidien.com, www.covidien.com, or via an authorized
repair representative (see section 1.8.8 Who to Contact for Authorized Repair).
9.8.2 Check Fuses
Above the mains power switch is the external access fuse compartment. The AC input line is fused
with 2.5 A, 250 V fuses.
 WARNING:
Disconnect the AC power cord before operating fuse compartment door.
1. Remove the fuse holder by inserting a jeweler’s size, flat-blade screwdriver into the slot at the top of
the holder. Pry the fuse holder out.
2. Remove the fuse holder from the line filter.
3. To replace the fuses, place the new fuse in the side of the holder with one end closest to the four posts
at the back of the holder. The other end of the fuse should go to the middle of the fuse holder and
latch into the middle fuse holder spot. When both fuses are installed, place the fuse holder back in the
line filter and push it in completely.
4. Close the fuse compartment door.
5. Using an ohmmeter, verify the resistance (it should be 0.0 Ω).