Casio HK1223 User Manual Page 132
- Page / 147
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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8-6 Troubleshooting
Display Problems
Nothing appears on the screen.
If the power-on indicator is not on, check the electrical outlet, the
plugs and power cords.
If the power button does not respond to a light touch, press the button
firmly.
If you are using battery power, make sure that it has a charge
remaining and that it is installed correctly.
During operation, the screen may automatically turn off as a result of
power management. Press any key to see if the screen comes back.
The brightness level might be too low. Increase brightness by pressing
Fn+F6.
The display output might be set to an external device. To switch the
display back to the LCD, press
Fn+F9, or change the display through
the settings in Display Properties.
Reset the computer by pressing the keyboard BIOS reset switch on
the left side of the computer or by pressing
Ctrl+Alt+Del keys.
Try turning the computer off, wait for a few seconds, then turn it back
on.
The characters on the screen are dim.
Adjust the brightness and/or contrast.
Bad dots appear on the display at all times.
A small number of missing, discolored, or bright dots on the screen
are an intrinsic characteristic of TFT LCD technology. It is not
regarded as a LCD defect.
Resolution cannot be adjusted to desired setting.
Make sure that the video driver is installed correctly.
The external monitor displays nothing.
Make sure that the monitor is turned on.
- Mobile Laptop 900™ 1
- Operation Manual 2
- Regulations Information 4
- FCC RF Exposure Statement 5
- Facilities 7
- Aircraft 7
- Operational Warnings 8
- Operational Cautions 9
- LIMITED WARRANTY 14
- II. GENERAL PROVISIONS: 16
- V. GOVERNING LAW 18
- About the Battery 20
- About the Modem 21
- Table of Contents 23
- xxiii 26
- Preface 28
- Notational Conventions 29
- Getting Started 30
- Getting the Computer Running 31
- Opening the Cover 33
- Turning Off 34
- Right-Side Components 35
- Left-Side Components 36
- Rear Components 37
- Front Components 38
- Bottom-Side Components 39
- Top-open Components 41
- Where to Go from Here 43
- Operating Your Computer 44
- Starting the Computer 45
- Stopping the Computer 45
- To stop in 46
- Do this… To start up or 46
- Using the Keyboard 47
- Cursor-Control Keys 48
- Numeric Keypad 48
- Euro Symbol 49
- Windows Keys 49
- Function Keys 49
- Hot Keys 50
- Using the Touchpad 52
- Configuring the Touchpad 54
- Using the Hard Disk Drive 56
- DVD drive 58
- 2-16 Operating Your Computer 59
- Problems” in Chapter 8.) 59
- Using the Video Features 60
- Using the Audio Features 62
- Connecting Audio Devices 63
- Using the LAN 64
- 2-22 Operating Your Computer 65
- Proset not Windows 67
- Using the Modem 68
- 2-26 Operating Your Computer 69
- Using the GPS (option) 70
- Using the Bluetooth (option) 71
- Managing Power 73
- AC Adapter 74
- Battery Pack 75
- Checking the Battery Level 76
- Replacing the Battery Pack 77
- 3-6 Managing Power 78
- Power Management 79
- Hibernation 80
- Power-Saving Tips 81
- 3-10 Managing Power 82
- Expanding Your Computer 83
- 4-2 Expanding Your Computer 84
- Connecting a USB Device 85
- Connecting a Serial Device 86
- Connecting an IR Device 87
- 4-6 Expanding Your Computer 88
- Expanding Your Computer 4-7 89
- System Memory Upgrade 90
- CHAPTER 91
- When to Use 92
- Starting SCU 92
- Main Menu 94
- Internal Numlock 95
- USB Emulation 95
- Advanced Menu 96
- Shared Video Memory 97
- COM Ports 98
- HDD Heater 98
- Security Menu 99
- SCU Password 100
- Hard Disk Boot Sector 100
- Boot Menu 101
- Exit Menu 102
- Installing Software Drivers 103
- How to Use the Driver CD 104
- Drivers on the First Page 105
- Drivers on the Second Page 106
- Drivers on the Three Page 107
- Caring for the Computer 121
- Protecting the Computer 122
- Taking Care of the Computer 123
- Cleaning Guidelines 124
- Battery Pack Guidelines 124
- When Traveling 125
- 7-6 Caring for the Computer 126
- Troubleshooting 127
- Preliminary Checklist 128
- Solving Common Problems 129
- Battery Problems 130
- Bluetooth Problems 130
- DVD Drive Problems 131
- Display Problems 132
- Hardware Device Problems 133
- Hard Disk Drive Problems 134
- Infrared Problems 134
- LAN Problems 135
- WLAN Problems 136
- Modem Problems 137
- Power Management Problems 138
- Software Problems 138
- Sound Problems 139
- Startup Problems 139
- Other Problems 140
- Resetting the Computer 141
- 8-16 Troubleshooting 142
- Specifications 143
- A-2 Specifications 144
- APPENDIX 145
- Finger Placement 146
- Utility 147
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