Moisture condensation
If the PSP® system or UMD™ is brought directly from a cold location to a warm one, moisture may condense on the lens inside the system or on the UMD™. Should this occur, the system may not operate properly. In this case, remove the UMD™ and turn off and unplug the system. Do not put the UMD™ back in until the moisture evaporates (this may take several hours). If the system still does not operate properly, contact the PSP® service line at the number listed on your warranty card for assistance.
UMD™ handling
•Do not touch the opening on the rear of the disc (recorded surface of the disc) with your fingers.
•Do not allow dust, sand, foreign objects or other types of dirt to get on the disc.
•If the UMD™ becomes dirty, gently wipe the exterior and recorded surfaces of the UMD™ using a soft cloth. Do not use solvents or other chemicals.
•Do not use a UMD™ that is cracked or warped or has been repaired. The UMD™ may break inside the PSP® system, leading to injury or malfunction.
Handling and care of exterior surfaces
Follow the guidelines listed below to help avoid deterioration or discoloration of the PSP® system:
•Do not use solvents or other chemicals to clean the exterior surface.
•Do not allow the system to remain in direct contact with rubber or vinyl products for an extended period of time.
•Do not use a
Before using the analog stick
For best results, go to 
(Settings)
(System Settings) and then with the "System Information" screen displayed, rotate the analog stick in a circular motion. This will adjust the analog stick's range of movement.
Cleaning
For safety reasons, unplug the AC power cord from the electrical outlet, disconnect any other cables and remove the battery pack from the system before cleaning.
Cleaning the exterior surface and LCD screen
Wipe gently with a soft cloth.
Cleaning the connectors
•Do not use when the connectors of the system, AC adaptor or the AC power cord are not clean. Remove the dirt with a dry cloth or cotton swab. If used when dirty, the flow of electrical current may be obstructed.
•If the headphones or remote control connectors become dirty, this could cause noise or interruptions in sound. Wipe the connectors with a dry, soft cloth to keep in clean condition.