PN 060914-000
Revision C, October 2001
Page 2-17
© 2001, C-COR.net Corporation
b. Next, remove the fuse holder assembly from the AC input power
module by inserting a small bladed, common screwdriver in the slot
located on the right side of the fuse holder assembly (in the IEC
power cord adapter cavity).
1. Rotate the screwdriver 1/4-turn to start release.
2. Then, press down on the screwdriver until the fuse holder
assembly snaps free from the AC input power module. Use
your fingers to remove the fuse holder assembly from the
AC input power module.
c. Position fuse holder so that the open side (see illustration) is
accessible. Using a digital voltmeter, check continuity between
pins 1 and 2 (top, adjacent pins) to verify condition of fuse 1,
and pins 3 and 4 (bottom, adjacent pins) for fuse 2.
If either or both fuses are blown (measures open), replace
defective fuses as directed in steps 9 and 10 (refer to section 1.4,
Table 1-2 for fuse type). When complete, repeat DLP-503.
Note:
If application of power to the fan assembly continues
to blow fuses, suspect faulty Fan/Power Supply assembly.
Disconnect wiring to the shelf, remove and return the
suspected faulty HW-PSFAN-x-xxx assembly to C-COR.net.
If the fuses are good (measures continuity), replace fuse holder
as directed in step 10. When complete, continue to step 11.
Note:
The fuse holder contains safety compartments on both
sides to prevent accidental contact with the fuses
before the fuse holder pins are fully disengaged from AC
input power pins.
9. To replace the fuses in the fuse holder:
a.
To remove the fuses
from the fuse holder, position the fuse holder
so that the open side (see illustration) is accessible:
1. Place the flat portion of the screwdriver blade under the fuse
to be removed.
2. Press down to release the fuse from the fuse clips.
Note:
As the fuse is forced upward, the safety compartment
will slide up so that the fuse can be removed.
3. Repeat step 9a. if second fuse has to be removed.
DLP-503
Page 4 of 6
Module LED
Table 503-1
(continued)
Indications
Fan/Power Supply Fault Diagnostic/Probable Cause
Summary of Contents for Optiworx HW Series
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