Thermal Unit Failure; External Mouse Failure - Packard Bell EasyNote LJ77 Service Manual

Thermal Unit Failure

If the Thermal Unit fails, perform the following actions one at a time to correct the problem. Do not replace
non-defective FRUs:

External Mouse Failure

If an external Mouse fails, perform the following actions one at a time to correct the problem.
1. Try an alternative mouse.
2. If the mouse uses a wireless connection, insert new batteries and confirm there is a good connection. See
the mouse user manual.
3. If the mouse uses a USB connection, try an alternate USB port.
4. Try an alternative program to verify mouse operation. Reinstall the program experiencing mouse failure.
Chapter 4
START
Fan power
wire well No
connected?
Fan OK? No
CPU
heatsink well No
seated?
CPU OK?
No
Replace M/B
Connect it well
Replace
Seat it well
Replace
CPU
157