Question about HP Compaq 1501 15" LCD Monitor

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Compaq 1501 15" LCD Monitor ( Blinking Display)

Hi to All Experts out there.

My problem on my Compaq 1501 LCD monitor is that, when I turn it on there is a display but it blinks then after a while it will go to a standby mode. Please advice me if what part of the monitor or in the circuit do I need to check and to be change.

Thank you in advance.


Regards

Boy

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  • 19manuel76 Sep 01, 2008

    Thanks eagle338 for replying to my inquiry, i will try to check it and I will inform you about the result.



    Regards



    boy

  • Cindy Stang-Sardina Dec 20, 2008

    Actually, when I turn my monitor on a "Going to Sleep" message is displayed on a black screen and then the screen goes all black. We had a power outage acouple of nights ago and the pc was on. Since then our power has shut off and right back on about 4 or 5 times and of course the pc was on every time. It is a Compaq 1501 flat screen monitor and I am using Windows XP operating system. Any one out there have any ideas how to fix this problem?

  • Anonymous May 07, 2009

    i whant of drivers for the monitor compaq

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It will be video cable or related.

Responding to prior post,
Fuses have nothing to do with the video proper.
If you have a message on the screen, which says the monitor is basically working or saying the fuses and inverter is working.

That message appears with lack of video, so it can be the cable itself, possibly the video card on the computer.

Posted on Apr 26, 2009

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Hi BOY! :P
Check if there is anything wrong with the video input cable to the monitor. If not then you should move ahead with the replacement of the ceramic fuses. There should be around 6 of them in most monitors i have fixed. They will look like this(click here) They should cost you around 1$ each.
If none of these work then your monitor's inverter board is probably screwed and needs to be replaced. should cost you around 30-60$.

Posted on Aug 30, 2008

  • eagle338
    eagle338 Sep 02, 2008

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1 Answer

Laptop


No blinking cursor either?

{ If there is a blinking cursor, you would then use the Restoration Disk, IF you have it.
When asked choose Repair. (Non-Destructive Installation)
If you do not have it go to HP Support Worldwide, your country, and obtain the disk. (HP bought out Compaq. On the HP Support page for your country, go to the Top Right, click on the - Connect with HP - icon.

When you hover your mouse cursor over it, Connect with HP will briefly show)
The disk is free. The shipping and handling is not.
USA example: $17 for a 5 to 7 day ship, $24 for a 2 to 3 day ship. Call 1-800-474-6836. 24hrs a day, 7 days a week.

Have your Serial Number handy, to give to the nice representative on the phone. Bottom of the laptop in white Service Tag. S/N = Serial Number }

However no blinking cursor was stated. This means to me that it is a graphics problem.

The problem can be;
1) Graphics chipset
2) Video Cable. (Compaq/HP = Display Cable)

3) Screen Inverter. (IF used. Model Name and Model Number was not stated. This is the Product Number. P/N in white Service Tag, on bottom of laptop.

GENERALLY, if a CCFL is used for a Backlight, a screen Inverter is used. (Cold Cathode Fluorescent Lamp)

IF LED backlighting is used, GENERALLY NO screen Inverter is used. (Light Emitting Diode)
Does depend on what model we are talking about here.
There are some models that have used a screen Inverter, along with LED Backlighting.

4) LCD screen

A) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA connector, on the laptop.
Usually on one of the sides, or back.
Here is a general example of a VGA connector (port), and a VGA Cable,

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

Scroll down a little for VGA Cable example.

You can use a CRT type of monitor (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable. (You can also use a VGA to DVI adapter, if the laptop has a DVI port on it,

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

You can click on any photo to enlarge. Sometimes you can enlarge twice )

B) 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;

You have at least 3 display options available;
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Hold the Fn key down, and at the SAME time tap once on the F4 key. The F4 key is the Display Toggle-Over key.

Still no display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F4 key.

NO display on external VGA monitor, means a problem with the graphics chipset.
Most of the time it is the MOUNTING of the graphics chipset TO motherboard.

The solder connections is the problem. Graphics chipset is reflowed to the motherboard, using an SMD/BGA Rework Station. Specialized shops have them.

Otherwise it means replacing the motherboard.

Good graphics on external VGA monitor means the problem is;
1) Video Cable
2) Screen Inverter (IF USED)
3) LCD screen

A Video Cable cost ranges from $9 to $22, with $9 being the norm.
It also just may have a loose connection. Loose at the motherboard side, or LCD screen side. May be screen Inverter cable connection, from Video Cable; is also loose.

So, you are looking at perhaps a loose connection of Video Cable.
Or a damaged Video Cable. (Replace then)

Problem may be the screen Inverter. (IF used)
They range from $9 to $22 also. (Again, $9 being the norm, or less)

LCD screen ranges from $60 to $245.
Just depends on what Compaq laptop it is.

Point?
Better to diagnose.
May find loose Video Cable connection, or bad Video Cable.
May find bad screen Inverter, if Video Cable is not the problem.

Some people jump the diagnostic flowchart, wind up spending $60 to $245 for an LCD screen, ONLY to find the problem was a $9 Video Cable, or FREE if the connection was loose.

Wish I could guide you from here. I step by step guide people, and this means replacing a motherboard in a laptop, if needed.
I have over 10,000 solutions, and many of them are for laptop repair. According to feedback from the asker's of the problems, I seem to have a very high ratio of accomplishment at this, because they repaired their problem/s.
(Brag, brag, lol!)

However it would seem a recent site development change, has rendered replies back from the problem asker, USELESS.
Haven't had a reply in two weeks, or more.
(Neither have the Top Experts)

Regards,
joecoolvette

May 20, 2013 | Compaq Computers & Internet

1 Answer

I have compaq tft5000 15" lcd monitor when we


It is broken. Replace it.

If you look online for a "previously-owned" 15-inch LCD monitor, expect to pay $20 to $30.

If you go to any "big-box" electronics store, you can buy a 19-inch LCD monitor for under $100.

Either way, it's much less expensive to REPLACE it
than it would be for a professional TV/video technician to try to trouble-shoot and REPAIR it.

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1 Answer

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hI,
if the screen is completely white the problem could be a bad LCD cable. To cross check if the problem with the LCD or the motherboard. Connect an external monitor to the laptop. Tap the Fn + F8 key together to get the display to toggle to the external monitor if the display comes on the external monitor without any problems the problem is with the LCD and you would have to take the laptop for repairs.

Thanks for using Fixya
Proton

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Hi there. Try to remove and reseat your video card first... maybe there's nothing wrong with it actually...

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Hope I gave you an Idea.. ^_^

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Check that the signal cable from the computer is firmly connected and that there are no bent pins in either end. If the trouble continues, the problem is in the monitor itself. Given the low replacement cost, it's uneconomical to try repairing these.

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