Question about HP Compaq Presario C304NR Notebook

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Screen problem I have a compaq presario c304nr with 15.5" wxga display. The screensize is about 60% of monitor with a partial 2nd (duplicate) screen image on bottom. I tried a system restore, but still have the problem. The video driver is up to date. Help

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  • solidblu3 Mar 16, 2009

    yes. the bottom half of my screen is black and i can no longer see anything no matter if i bend it or anything. last time i was still able to see the bottom half by bending the screen or opening and closing the screen really fast so it would show the bottom. but as time progressed, the screen worsened and it's all blaaackkk!. my friend said that this may have happened by opening it weird that causes the screen to spread..something like that. buh yeah. i hate it

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Laptop screen blank all white


Either your LCD Video Cable is not plugged in snuggly or the monitor is slowly going bad. The fact that you can see the images on an external monitors says your Video Graphics Card is working fine. You'll need to disassemble the laptop to get to the cables. Get a quote from your local computer shops, then try the guys at: http://www.generalsystemsconsulting.com Most times they will fix it and ship it back by Fedex or UPS cheaper than any quote you obtained including the shipping.

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My compaq presario cq62-238dx felloff my hands, no scratches or damages are visible, when I first turned it on it worked as if nothing would have happenned, but later on the screen turned pink, the next...


I suggest you start diagnosing by using an external monitor, if available.
A VGA monitor.

(It can be a VGA monitor that looks like a small TV, {CRT}, or an LCD flat screen that has a VGA cable attached.
More information on VGA connectors,

http://en.wikipedia.org/wiki/VGA_connector

Laptop off, and VGA monitor off, connect the VGA cable of the monitor to the Left side of the laptop.
(Rear top port)

Turn the monitor on, and then the laptop.
Do you see a display on the external monitor? (VGA monitor)

No?
Press, and hold down on the Fn key (Function Key), and tap once on the F4 key.

A) If BOTH the external monitor screen, and the laptop screen have the same pinkish display, the problem is the graphics chip. (More on graphics chip in a moment)

B) If just the laptop screen is pinkish, and the external monitor graphics are okay, the problem is inside the laptop display.

1) Could be a loose connection of the Display Panel Cable.
{The Display Panel Cable attaches to the motherboard, and the LCD screen in the laptop display}

2) Could be a bad Display Panel Cable.
Possible damage to the Display Panel Cable is the the laptop display was open.

Look for signs of damage to the sheath of the Display Panel cable.
However the damage may not be apparent. The Display Panel Cable could have been stretched.
(Laptop display open when dropped)
The tiny wires inside the Display Panel Cable could have become damaged.

Testing requires that the Display Panel Cable be removed.
A multimeter is used to check continuity of each wire.

{Multimeter function knob is set to Ohms. 1K or 10K if these settings are available.
The Positive probe lead (Red) is touched to a wire at one end of the Display Panel Cable.
The Negative probe lead (Black) is touched to the other end of the wire.

Analog multimeter needle swings up, you have continuity. Don't worry about the Ohm reading at this point. As long as the needle moves.

No movement? Have a helper gently move the Display Panel Cable around.
See if there is continuity shown, or is intermittently shown.
Indicates a break in the wire.
Solution is to replace the Display Panel Cable.

Same with a digital multimeter. No reading, or intermittent reading indicates a broken wire.

Display Cable Kit - HP Part Number 595196-001
I have seen several listings on the internet.

3) Could be a bad LCD screen.

Check the connections.
Check the display panel cable
If this checks out okay suspect the LCD screen.

Compaq Presario CQ62-238dx Notebook PC - Service Manual,
(Free from HP Support),

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lang=en&lc=en&product=4252487&

Left-click on -
Compaq Presario CQ62 Notebook PC and HP G62 Notebook PC - Maintenance and Service Guide

This is a PDF file. (The computer you are using now has Adobe Reader on it, which uses PDF files)
It may take up to 30 seconds before the first page comes up.
It may also take additional time for the file to fully download.

In the Bookmarks menu on the left, click on the + sign to the left of Removal and replacement procedures.
Now click on the + sign to the left of Preliminary replacement requirements, then go on to Component replacement procedures

For additional questions post in a Comment.

Regards,
joecoolvette

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1 Answer

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Just right clicking does not always call up the second monitor option.

You should select "screen resolution" after right clicking

Then ensure there are two moinitors available.
If not check all connections to the second monitor inc the cables.

Make sure that the multiple display option is set correctly too eg extend these displays,
OR duplicate and NOT show desktop on display 1 (or 2)

Also check you have the latest drivers installed for that model.
DO NOT RELY ON THE MICROSOFT DRIVER UPDATE !
Go to the Compaq site and get them from there !

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1 Answer

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your lcd might be faulty before that scan yr sys with antivirus if no virus found format yr system with fresh copy if problem persist contact service center or contact me to find service location

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1 Answer

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Hi,

Screen Lamps are dead or Lamp inverter is dead or the high voltage fuse of the inverter is blown. Try to contact some reliable repairing engineer.


Regards;
Hasan

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2 Answers

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This HP Support, the page for Compaq Presario C304NR, and the Manuals page,
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=3245634&lang=en&

Go down to the first download in the list -> HP G3000 Notebook PC and Compaq Presario C300 Notebook PC - Maintenance and Service Guide, and click on it. (HP bought out Compaq.
Compaq Presario C304nr is part of the Compaq Presario C300 Series)

This download states that it's a guide, but in reality it's a Service Manual. It's a PDF file. After you click on the above, it may take up to 30 seconds before you see anything. Most of the time in 10 to 15 seconds, you see the first page. Let it fully download before looking through it.
You can save a copy so that you don't have to download it again, and also so you can burn a copy off to CD disk.

After the PDF file FULLY downloads go up to the top headings. Click on the Floppy Disk icon. It's the second icon from the left. Hovering your mouse cursor on it will briefly reveal, "Click to save this file to your computer or another location"

In the next small window, (Save a copy..), write down the letter/number that is in the -> File name:, box. (It's c00753552.pdf), so you can find it later. It will either be in your My Documents folder, (Start>My Documents), or on your desktop screen. When you see it, double-click on it to open it.

Read starting at Page 87 for Removal and Replacement Preliminaries, first, then go to Page 111 to remove the RTC battery.

I suggest you go to section 2.4 for the Troubleshooting Flowcharts.
(Starts on Page 35)

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1 Answer

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