C-COR Flex Max901e - Page 87

6
1502154 Rev D Troubleshooting 6-7
Figure 6.3
Troubleshooting
Flow Diagram
(1 of 2)
Start
Replace/realign the fuse. If the
fuse blows when reinserted,
check the AC distribution
system for short circuits.
Replace/realign the fuse. If the
fuse blows when reinserted,
check the AC distribution
system for short circuits.
Check the cabling, plugs, and
jacks between the power
supply and the RF module.
Check the RF module for a
short circuit or broken current
path.
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
AC voltage at
test
point within
specified
range?
AC IN
Is the
blown or misaligned?
MAIN FUSE
Is the AC insertion
port fuse blown?
Is there power at
the AC insertion
port centerseizure
screw?
Verify that the center
conductor pin and power
cable are not shorted to
ground.
Check cable plant powering.
Check the tightness of the
centerseizure screw.
B+ voltage
within specified
range?
Replace the
power supply.
Sheet 2
1