Troubleshooting; The Plotter Is Turned On But Doesn't Operate - GRAPHTEC CE5000-40CRP Service Manual

9. TROUBLESHOOTING

9.1 The Plotter is Turned On But Doesn't Operate

Symptom
The control panel's LED
lamp does not light or
the LCD does not display
anything.
CE5000-UM-251-9370
Verification item
(1) Is the plotter being supplied with
power?
(2) Is the FPC504302 flexible cable
securely connected to the main
board and the control panel?
(3) Is the FPC504302 flexible cable
broken?
(4) Is the AC line electrical output
correct?
(5) Does the power supply unit have
a 5 V output?
No .....Check that the power cord is
securely connected to the plotter's
AC line inlet.
Yes ....Verify item (2).
No .....Connect the flexible cable
securely.
Yes ....Verify item (3).
No .....Verify item (4).
Yes ....Replace the FPC504302 flexible
cable.
No .....Change the AC line.
Yes ....Verify item (5).
No .....Replace the power supply unit.
Yes ....Replace the main board.
9-1
9. TROUBLESHOOTING
Solution