Service manual

Chapter 5 Troubleshooting
47
5 Troubleshooting
Preventive Maintenance Procedures
Refer to this table for preventive maintenance procedures for this Netserver. Be sure to turn off power to the
Netserver when cleaning it.
Preventative Maintenance Procedures
Component Time Frame Maintenance Procedure
Keyboard Regularly Dust with damp, lint-free cloth.
Monitor screen Regularly Use "HP Video Screen Cleaning Solution" found in 92193M
Master Clean Kit.
Mouse Regularly Refer to the mouse's manual for mouse maintenance
procedures.
Tape drive heads Monthly Use "Magnetic Head Cleaning Solution" found in the 92193M
Master Clean Kit.
Cooling fans and
grilles
6 Months Check functions of cooling fans and clean the intake openings
on the chassis of dust, lint, and other obstructions to airflow.
CAUTION Do NOT use petroleum-based cleaners (such as lighter fluid) or cleaners containing
benzene, trichlorethylene, ammonia, dilute ammonia, or acetone. These chemicals
could damage the keyboard's plastic surfaces.
HP recommends the periodic cleaning of tape heads, capstans, and guides on HP drive units and those
products using high-density data cartridges and mini-data cartridges. This maintenance procedure prolongs
tape and head life and helps reduce read/write errors due to dust and oxide.
Troubleshooting Tips
WARNING Before removing the top cover, always disconnect the power cord(s) and unplug
telephone cables. Disconnect telephone cables to avoid exposure to shock hazard
from telephone ringing voltages. Disconnect the power cord(s) to avoid exposure to
high energy levels that may cause burns when parts are short-circuited by metal
objects such as tools or jewelry.
• For problems with the HP NetRAID controller, refer to the appropriate HP NetRAID manuals.
• For problems with HP TopTools, refer to the HP TopTools Administrator Guide on the HP Web
Site at
http://www.hp.com/toptools
• For general information on management products, refer to
http://www.hp.com/go/netserver_mgmt
and search for "management”.