Question about HP Pavilion dv7-1130us laptop

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Hp probook 470 g1 starts fine but nothing on my screen, works on my tv but not laptop. only a week old have I done something

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  • 94 Answers

Right click on desktop -> select screen resolution. Select identify. If external monitor is number 2, select monitor number 1 (laptops monitor) and from dropdown menu select "extend these displays" or "duplicate these displays". Select apply, picture should be shown on both screens.

Posted on Jun 04, 2014

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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SOURCE: Display Failure for HP dv9000 Laptop 17"

Thanks Zohail for your comment.
My friend Juan Carlos asked me to check his laptop.
Captioned laptop was checked/inspected by two technicians and no one get it to work.
Fault Description.

After 3 months of use. The wireless mini-card fails. No wireless connection can be made.
Randomly the laptop fails to boot up. Black screen and power led (blue lights) on.
Owner took out the battery module and reset the laptop according user manual instructions. He got it to work a couple of times until the laptop was un-responsive at all.

I goggle the Laptop model number and the fault description and plenty entries showed up. Faulty motherboard, short guarantee from HP, etc…
I found the service manual from this series and I decided to verify if the motherboard was really damaged.
Prior a full dismantling I reset the bios by disconnecting the CRT battery. I made an other test: the machine starts the boot sequence, read from DVD, later pass to hard drive, the hard drive led blinks a couple the times and that’s all. After a period of time the laptop shut downs itself and reboots again….black screen ….nothing……..
I tear down the laptop (according service manual instructions), check all boards and I did not find any sign of damaged component or over-heating.
I took special care during the dismantling, I let the CRT battery in place (motherboard) but I disconnect every thing. Everybody must be aware that this particular mobo has a
small switch (identical to the power switch). Captioned switch can no be accessed from outside (you have to dismantle the computer in order to see it). I took a ball pen and press this switch for five seconds (twice). I assembled back the laptop and make a test in order to see if starts. The machine boots and the set up screen came up. “ Press F1 to continue… I press F1 and the start sequence complete….
I found that the power settings in Power Profile (HP Recommended) was 2% in critical battery (too low in my opinion)
Conclusion: the machine is working; the only thing that I could not get to work was the wireless min-card. I reload the drivers but probably the mini-card is faulty.

I hope that this solution helps.

Posted by MCampos

Posted on May 31, 2009

  • 180 Answers

SOURCE: hp laptop 9720us screen wont brighten or dim. last

You got the wrong inverter fitted - i'm sure your unit requires a sinle lamp inverter and they have cheated - putting in a generic lamp inverter and branching togeather the wires to accomodate the single plug thus reducing the available volatage for the lamps - this is why it's dim - correct part is 431391-001 Display panel power inverter - For use with single lamp display panel

Posted on Aug 08, 2009

  • 1752 Answers

SOURCE: Hp 4510s probook will not power on

Your battery is shot.

Posted on Nov 03, 2009

  • 2973 Answers

SOURCE: hp probook 4510s cannot get cd tray open

The tray may have got stuck. It happens. What you can do is look for a small hole on the face of the drive, either on the tray front or just below it. Insert a paper pin through it. The pin will press a lever which will open the tray. If you do it a few times the tray may get unstuck finally. Hopefully.

Posted on Dec 13, 2009

  • 4336 Answers

SOURCE: i can adjust screen brightness

Typically there are two ways: through the keyboard, usually a function button and brighter or darker button, and 2nd in the power settings. Lower screen brightness gives much longer battery life.

Posted on Feb 14, 2011

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Hp laptop 9720us screen wont brighten or dim. last week my screen went blank brought it to a shop they changed the inverter and also some cable connection . works fine just not quite as bright as before ....

You got the wrong inverter fitted - i'm sure your unit requires a sinle lamp inverter and they have cheated - putting in a generic lamp inverter and branching togeather the wires to accomodate the single plug thus reducing the available volatage for the lamps - this is why it's dim - correct part is 431391-001 Display panel power inverter - For use with single lamp display panel

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press f8 after boot up ,then select option enable vga,then when it start go to control panel,
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