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Compaq Presario CQ40-300 Support Question

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Question posted by emrultapos on June 19th, 2012

No Display

My laptop is Compaq Presario CQ40-313TU. When i press power button there is No display but all light (caps lock, power, Altec lansing, Touch pad, Lan) are on and off all time until remove betray. What’s a problem please?

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Related Compaq Presario CQ40-300 Manual Pages

Wireless Setup Guide - Page 2

Start with 3 pieces A typical home or small-office wireless LAN requires only 3 pieces of Wireless LAN (WLAN) Technology Standards" table on page 7. Use the table ... capability. With these 3 pieces, you can buy a wireless PC Card to set up your wireless router. TIP: If you did not buy a wireless-enabled notebook, you 're ready to record this information. Your Internet connection...
Wireless Setup Guide - Page 4

... to your network. PROGRESS CHECK After step 1, the blue wireless light turns on. 1 Press the wireless on/off button on the computer to enable the wireless function. 2 Connect to...steps that correspond with wireless notebooks and wired desktop PROGRESS CHECK If you successfully complete step 3, a Wireless Network Connection status icon and message are displayed on the screen. Example...
Setup Utility - Windows Vista and Windows 7 - Page 7

... the Setup Utility default settings. Select the Main menu. System information such as the system time and date, and identification information about the computer is displayed, press f10. 2. Restoring default settings in the lower-left corner of the screen, press esc. Open the Setup Utility by turning on or restarting the computer. When the...
HP Mobile Remote Control (Select Models Only) - Windows Vista - Page 6

... after you log on. Press the button to switch the computer image between the computer display and an external display. The Windows Media Center button has no function with other operating systems. If the computer uses Windows Vista Premium or Windows Vista Ultimate, press the button to open the Media Center main menu. Button Power DVD Media Switch screens...
HP Mobile Remote Control (Select Models Only) - Windows Vista - Page 8

...scroll down Press the button to restore system volume. Press the button to scroll right. Press the button to increase system volume. Navigation. Press the button to scroll right. Navigation. Press the button to decrease system volume. Information Press to increase system volume. 4 Chapter 2 Button quick reference Press the button to display system information...
External Devices - Windows Vista - Page 10

NOTE: To display the Safely Remove Hardware icon, click the Show Hidden Icons icon (< or Double-click the Safely Remove Hardware icon in the notification area, at the far right of information or an unresponsive system, stop the eSATA device before removing it. CAUTION: To prevent damage to an eSATA connector, do not pull on...
Notebook Tour - Windows Vista - Page 9

... 2 power lights display the same information. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low battery level. ● Blinking: The hard drive or optical drive is being accessed. ● On: HP ProtectSmart Hard Drive Protection has temporarily parked the internal hard drive. (4) Caps lock light (5) Wireless light On: Caps lock...
Notebook Tour - Windows Vista - Page 21

... 10 Digital Media Slot, identifying 10 display switch, identifying 6 drive light, identifying 3, 7 B battery bay, identifying 11 battery light, identifying 3, 7 battery release latch, identifying 11 battery, identifying 13 bays battery 11, 14 hard drive 11 Bluetooth label 14 buttons power 4 TouchPad 2 TouchPad on/off 2 wireless 4 C caps lock light, identifying 3 Certificate of Authenticity label...
Pointing Devices and Keyboard - Windows Vista - Page 18

... connecting 2 setting preferences 2 N num lock light, identifying 9 num lock, external keypad 10 P Print Options window hotkey 5 Q QuickLock hotkey 7 S S-Video 6 screen brightness hotkeys 7 screen image, switching 6 scroll zones, TouchPad 1 system information hotkey 4 T TouchPad identifying 1 setting preferences 2 TouchPad buttons, identifying 1 TouchPad light, identifying 1 TouchPad scroll zones...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 9

1 Product description Category Product Name Processors Chipset Description Intel models Compaq Presario CQ40 Notebook PC √ Intel® Core™ 2 Duo processors T9600 2.80-GHz, 6-MB L2 cache, 1066- √ MHz FSB T9400 2.53-GHz, 6-MB L2 cache, 1066- √ ...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 11

..., 5400 rpm ● 160 GB, 5400 rpm ● 120 GB, 5400 rpm Fixed (removal of one screw required) √ SATA √ 12.7-mm tray load √ Supports the... analog √ HD audio √ Supports Windows Vista® Premium √ Logo requirements Presario-branded Altec Lansing √ speakers 56K V.92 data/fax modem √ Supports all worldwide certification √ ...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 16

... is being used to increase speaker volume. (9) Num lock light On: Num lock is on or the embedded numeric keypad is in the Sleep state, briefly press the button to exit Sleep. ● When the computer is enabled. *The 2 power lights display the same information. To learn more about your power settings, select Start > Control Panel > System and Maintenance...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 71

.... If it is necessary to the display (2). Disconnect the display panel cable (2) and the backlight cable (3) from the display (3). If it is necessary to replace the display panel, remove the six black Phillips PM2.5×5.0 screws (1) that secure the display panel to the display enclosure, and then lift the panel from the display (4). Remove the cable from the enclosure...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 97

.../Disable field, use the arrow keys to the menu display, press esc. ● To display additional navigation and selection information while the Setup Utility is displayed, press enter. 5. Select the Main menu. System information such as the system time and date, and identification information about the computer is displayed, press f10. 2. Navigating and selecting in the Setup Utility...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 144

...appendix can vary from one computer model to the backlight (1) and the liquid crystal display (LCD) panel (2). For disposal or recycling information, contact your area for computer battery...dispose of mercury may be exercised when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. Display WARNING! The backlight contains mercury. Careful...
Compaq Presario CQ40 Notebook PC - Maintenance and Service Guide - Page 152

..., battery release 16 lights battery 7, 13 caps lock 7 Digital Media Slot 14 drive 7, 13 mute 7 num lock 8 optical drive 15 power 7, 13 TouchPad 6 volume down 7 volume mute 7 volume up 8 webcam 11 wireless 7 M main menu 91 mass storage devices, spare part numbers 26 media button, identifying 8 memory map specifications 104 memory module product description 2 removal 52 spare part...
HP Media Remote Control (Select Models Only) - Windows Vista - Page 7

... button to print pictures that you press a number button, a different letter is playing, press the button to pause the media. ● Press the button to rewind the selected media. ● Press the button to rewind the selected media. to play the selected media. ● When media is playing, press the button to pause the media. ● When media is displayed. NOTE: The button...
HP Media Remote Control (Select Models Only) - Windows Vista - Page 8

..., the switch screens button is not playing, press the button to Windows. Press the button to the QuickPlay or the DVD Play software Help for more information. Press the button to log on select remote controls only. Refer to alternate between the computer display and an external display. Press the button to capture a picture of the computer Press the button to capture a picture...
HP Media Remote Control (Select Models Only) - Windows Vista - Page 9

... descending order. ● Press to display information and settings information about a selected media file, such as playing, rewinding, etc. When you press the button, it advances so that you press chapter. watching live TV again. ● Press the button to advance 30 seconds in ● Press the button to open the Media Center main menu. Press the button to record in...
Multimedia - Windows Vista - Page 37

...disc 16 buttons DVD 3 media 3 volume mute 4 C CD inserting 17 removing 21 CD... setting 19 inserting 17 removing 21 DVD button 3 DVD drive 14 ... 8 mute button 4 O optical disc Blu-ray 16 inserting 17 removing 21 optical ...display 28 HP device drivers 29 optical disc tray 24 optical drive detection 25 Windows device drivers 30 V video, using 11 volume down button 4 volume down hotkey 2 volume mute button...

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