Is PC
Communicating
with F6300?
Are fans
ON at
power up?
Does
one I or V/I
amplifier not
work?
Are
all 4 Fans
off?
C
B
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
Replace Fan Assembly (see
”Removing and Replacing the
Cooling Fans” on page 5-10
Replace P/S
Assembly
(see
”Removing
and Replacing
Circuit
Boards”
on page 5-97)
Check that the
350V LED is lit.
(see ”Component
Checkout
Procedures”
on page 4-10)
Replace isolated bad
amplifier
(see ”Removing and
Replacing Circuit
Boards” on page 5-9)
FIXED
Power Up PC
and F6300
VFD = Vacuum Fluorescent Display
YES
(LED STATUS
Is any 350V
LED OFF?
NO
OK)
Check RS/232 or Ethernet Cable
(see ”Resolving Communications
Problems” on page 4-11)
B
Check the device
setting in Control
Panel / System
Device Manager.
Resolve any
conflicts in
Windows
Cable
OK?
Is the VFD
status OK?
Troubleshooting Flow Charts
4-2 72A-2337-01 Rev. B 11/05
Figure 4.1 Troubleshooting Flowchart Part 1