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Compaq Presario laptop

The monitor/display/screen on my laptop has developed an odd problem. It is a wide screen. The left hand side is just vertical graphic bars, the right, just fine. Suddenly the exact left half of my monitor has gone dead, but the right seems un-bothered. What could be going on, and what is the remedy?

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First attach laptop to an external monitor and using the FN/ F keys toggle back and forth to the external display. If the external works OK then the video display adapter is fine and the problem is the TAB welds on the LCD. Time for a new LCD.

Posted on Jul 27, 2008

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Posted on Jan 02, 2017

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White screen on laptop


Long read ahead Naveen.

Check to see if the problem is the;

A) Graphics chipset,

Or;
B) Video Cable,

http://www.ebay.com/itm/Compaq-Presario-1700-Laptop-LCD-Ribbon-Cable-251352-001-/310601465049?pt=LH_DefaultDomain_0&hash=item48514a3cd9

Or;
C) Screen Inverter,

http://www.ebay.com/itm/Compaq-Presario-1700-LCD-Inverter-KUBNKM011A-/280971500392?pt=US_Laptop_Screens_LCD_Panels&hash=item416b34db68

Or;
LCD screen,

http://www.ebay.com/itm/Compaq-Presario-1700-Laptop-14-1-Inch-Screen-251352-001-/310601464998?pt=US_Laptop_Screens_LCD_Panels&hash=item48514a3ca6

(Not advertising, but on another note; you can buy the whole laptop for $50 USD,

http://www.ebay.com/itm/Compaq-Presario-1700-14-1-Laptop-Pentium-lll-1GHz-256MB-CD-RW-DVD-Rom-20GB-HDD-/390534574226?pt=Laptops_Nov05&hash=item5aedacb092 )

A) Graphics chipset:

Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the back of the laptop.
This is an example of a VGA connector (port), and VGA cable,

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

Scroll down a little for VGA cable example.
You can use a CRT type monitor (Looks like a small TV), or a flat LCD screen monitor of it has a VGA cable.

Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
By factory default settings, the display should show on the external VGA monitor.
IF not:

There are at least 3 display options;
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Press, and hold the Fn key down, and at the same time tap once on the F3 key. The F3 key is the Display Toggle-Over key.
Still no?
Hold the Fn key down again, tap once more on the F3 key.

A good display on the external VGA monitor means the graphics chipset is OK.
A white screen on the external VGA monitor, means a problem with the graphics chipset. More than likely the Mounting to motherboard, of the graphics chipset. (BGA surface mount)
If this is the problem post back in a Comment.

A good display on the external VGA monitor, means the problem is the Video Cable; or inside the Display Assembly.
(Screen Inverter or LCD screen)

B) Video Cable:

The Video Cable plugs into the motherboard, in an area under the LED Button Bezel, and right next to the Left HINGE.

[LED Button Bezel is the strip of plastic below the LCD screen, and above the Keyboard. Has LED indicator lights in it, etc ]

It then leads up into the Display Assembly, where a small separate cable connects to one side of the screen Inverter, and the rest of the cable connects to the Back of the LCD screen.

Just due to normal repeated opening, and closing of the laptop; the Video Cable may become pinched.
This allows it to be pulled on, and/or damaged.
(Stretched/broken wires)

ALL power removed, AC adapter (Charger), and Battery; the connections for the Video Cable should be checked.
Motherboard side, screen Inverter connection, and LCD screen side.

Motherboard side connection:
1) Remove the LED Button Bezel.

Two screws (Philips) are removed from the bottom of the laptop, and the LED Button Bezel is CAREFULLY pried up, and off.

Details are in Page 91 in the Service Manual, which I will include at the last of this solution.
I will refer to the page number from now on, for the specific component removal.

2) Remove the Keyboard. Page 93.

I state remove, but do NOT unplug the Keyboard Cable from motherboard connector. Just unfasten the Keyboard, roll LCD screen side towards you, and lay upside down on the Palm Rest Cover.

You MUST physically check the connection for tightness. Try to plug it in tighter.

LCD screen side connection:

Disassembly of the Display Assembly, is not shown in the Service Manual. (At least I couldn't find it)
REMOVAL of Display Assembly is.
So I will guide you step by step. I do not believe the Display Assembly has to be removed, in order to remove the Display Bezel.

The plastic frame in front of the LCD screen is the Display Bezel.
Looks like this removed,

http://www.ebay.com/itm/COMPAQ-PRESARIO-1700-14-1-LCD-FRONT-COVER-BEZEL-/320720203233?pt=US_Laptop_Screens_LCD_Panels&hash=item4aac69ede1

From what I can see, there are four Philips head screws to remove, from the Display Bezel.
There is a Screw Cover at the Top Left, and Top Right to remove.
The is a Screw Cover at the Bottom Left, and Bottom Right to remove also.

The Screw Covers are made of synthetic rubber, or plastic.
I use a computer pick, and lift up at the base of the Screw Cover, where it meets the Display Bezel.

The Screw Covers are held in place by a type of rubber cement.
If you are careful you may be able to reuse them. If they don't stick again, apply a TINY dab of rubber cement with a toothpick.
I LIGHTLY stick them to the Display Bezel for safekeeping.

Remove the 4 Philips head screws. (No.1 Philips screwdriver, or No.1 Jewelers Philips screwdriver)

The Display Bezel has TABS going around the exterior perimeter, of the inside edges.
The Display Cover has matching LATCHES that the Tabs snap into.

I suggest cut a piece of thick construction paper, to JUST FIT the inside edges of the Display Bezel, and lay on LCD screen.
(Display Assembly laid as far back as possible)
This will protect the LCD screen from your fingernails.

The bezel is flexible. Come to the inside edge (LCD screen side), of the right side of the Display Bezel.
Lift the edge up with a fingernail, until you can slide a fingertip underneath.
Can't get in? Move over. You are at a Tab/Latch.

Bezel lifted up with one fingertip slid under, move over with the other hand, and slide a fingertip under. Flex the bezel up a little, and move towards the Top.
By now you should hear a Tab/Latch snap loose.
Sounds like you are breaking something.

(Do use CARE! The bezel can be broken, but not if you are gentle, and go slow)
Keep popping the Tabs/Latches loose, going around the Top, then Left side. By the time you come around the Left side, the entire Display Bezel should pop loose.

(At the TOP. You may have to slide the Latch over to the open side, to get the slot in the Display Bezel to clear, if a Latch is used)

Not your laptop, and uses more screws. Just a basic 'hands-on' guide I thought may help,

http://www.insidemylaptop.com/how-to-replace-screen-on-asus-u56e-laptop/

More to follow in added Comment.

Free Service Manual,

http://h10025.www1.hp.com/ewfrf-JAVA/Doc/pdf/c00000630.pdf

http://www.overclockers.com/more-laptop-musings/

Regards,
joecoolvette

Feb 21, 2013 | Compaq Presario 1700 Notebook

4 Answers

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

Aug 19, 2011 | Compaq Presario CQ62238DX Laptop

1 Answer

Green line down left hand side of screen


If you are getting a horizontal or vertical line on the screen mostly this is an LCD issue. bring your computer to compaq's authorized service center to have the LCD replaced.

May 07, 2010 | Compaq Presario M2000 Notebook

1 Answer

Monitor problem laptop


try setting display settings to default. if that doesnt work, restart and if they are back, you might need a new lcd.

Apr 30, 2010 | Compaq Presario M2000 Notebook

1 Answer

Green line on my toshiba satelite laptop down left hand side of the screen,the line is vertical


yeah.,,,, its called a pixel line on the LCD,, the fix for this is to replace the screen ,, but the line is just a bit annoying it wont cause any problems ,, I;d use it as is,, and when i have extra cash replace the LCD display..

Mar 26, 2010 | Compaq Presario M2000 Notebook

2 Answers

Laptop screen fading in streaks


this thing happened in my laptop also i got green screen fully
then when i hit it behind the screen it was gone but comes many times then again i would hit
later on the screen was completly lost then had to replace the screen
yous is a starting period so go to a nearby computer service and fix the screen

May 27, 2009 | Compaq Presario M2000 Notebook

1 Answer

Multiple lines on screen


Try connecting an external monitor to the your laptop and see if the vertical line is also present on the monitor. If the monitor display is fine, then your laptop’s LCD display panel is defective. If the monitor also displays the vertical line, then your problem is with either the video card or motherboard located inside your laptop.Not sure if the Compaq Presario has an external monitor plug, but if it does the above procedure can be applied to that one as well.

Mar 15, 2009 | Compaq Presario M2000 Notebook

4 Answers

Vertical lines in my laptop screen


Try connecting an external monitor to the Dell Inspiron 9300 and see if the vertical line is also present on the monitor. If the monitor display is fine, then your laptop’s LCD display panel is defective. If the monitor also displays the vertical line, then your problem is with either the video card or motherboard located inside your laptop.
Not sure if the Compaq Presario has an external monitor plug, but if it does the above procedure can be applied to that one as well.


Your responses are intended to improve the level of service provided. Please rate your experience.
Thank You.

Oct 19, 2008 | Dell Inspiron 9300 Notebook

2 Answers

Vertical lines in my laptop screen


Yes the problem is with your video system hardware, most likely. A repair may be possible as it could be the delicate ribbon cable that provides the video signal from a connection on the motherboard to the actual display screen. It could be the display screen. If some tech-savy friend with a good rep and an anti-static mat, good tools, and good lighting wants to assist you or check it for you, you may give that a try. Consider first that if you have or can get an extended warranty from the manufacturer then you can have a higher likelihood of a good resolution of the problem of the vertical lines that distract from viewing the display.

Jun 04, 2008 | HP Compaq Presario C500t Notebook

1 Answer

Vertical lines in my laptop screen


thats monitor problem dude, better go to the nearest repair center of your toshiba to assist you bout this problem.

Mar 10, 2008 | AMD Compaq Presario Turion 64 Notebook

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