The computer is on but not responding

59

The computer is unusually warm

59

An external device is not working

59

The wireless network connection is not working

60

The optical disc tray does not open for removal of a CD

60

The computer does not detect the optical drive

61

A disc does not play

61

A movie is not visible on an external display

61

The process of burning a disc does not begin, or it stops before completion

62

Contacting customer support

62

Labels

63

Appendix B Routine care

 

Cleaning the display

65

Cleaning the TouchPad and keyboard

66

Appendix C Specifications

 

Input power

67

Operating environment

67

Appendix D Electrostatic discharge

 

Index

70

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HP CQ56-148CA, CQ56-110US, CQ56-100XX, CQ56-104CA, CQ56-112NR, CQ56-115DX, CQ56-122NR, CQ56-154CA manual Appendix B Routine care