Question about Dell E173FP 17" LCD Monitor

1 Answer

Partial Screen Display

My Dell 17' LCD monitor is displaying only the top 2/3rd portion of the screen. rest 1/3rd portion of the screen looks like TV snow(the black& white dots when a no signal channel is encountered). What could be wrong?

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  • nozferatu Jun 26, 2008

    Having the same problem on a dell inspirion 6000
    How do you check the interface unit or ADC unit?

  • Anonymous Mar 17, 2014

    it's like the screen is divided into 4 portions and the 3rd portion is brighter that the rest which makes the 1st and second portion as one

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  • Contributor
  • 44 Answers

Problem in the LCD back panel board. check the interface unit or ADC unit, also check the video clock pulse. one section is not working.....

Posted on Feb 08, 2008

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Oct 26, 2015 | Dell Desk Top Computer--and Lcd Monitor 17...

1 Answer

St2410b no display


When the following conditions, namely the need to replace the LCD inverter:
No image on the screen, but the power light stays on
Dark display but still readable
Between the screen flashes on and off 1/2 to several seconds
Power light stays on, but no display and sound
No image on the screen, but LCD TV still has sound
Picture cycle on and off, as well as high-power LED lights
http://www.lcdinverter.info/dell-n26397-lcd-inverter-p-5754.html

Aug 22, 2013 | Dell E173FP 17" LCD Flat Panel Monitor

1 Answer

Laptop all whit screen


Dell Inspiron 1420 Notebook PC?

The white screen can be fixed. How?

Connect a VGA monitor to the laptop. Connect to the VGA port on the right rear. Example of a VGA Cable, and VGA connector,

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

You can use a CRT type monitor, (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable.
By default the display should show on the external VGA monitor.

No?
Press, and hold the Fn key down, and at the same time tap the F8 key ONCE.
Still no?
There are 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 again, and tap once more on the F8 key.

No display on the external VGA monitor, means you have a bad graphics chipset. Replace motherboard.
Display does show on the external VGA monitor, means you have a problem with;

1) Video Cable
or
2) Screen Inverter
or
3) LCD screen

Video Cable:
The Display Panel Cable (Video Cable for Dell), connects to the motherboard by the left Hinge.
Goes under the left Hinge, and up into the Display Assembly.
It then connects to the Screen Inverter, and to the back of the Display Panel. (LCD screen for Dell)

From normal opening, and closing of the laptop, the Display Panel Cable may become pinched in the left Hinge.
This can cause;
A) The connection at the motherboard to come loose
B) The connection at the back of the Display Panel to come loose
C) Stretch the wires inside the Display Panel Cable's sheath, and damage the wires. (Break)

If you are lucky just the connection at the motherboard, and/or connection at the back of the Display panel, may have come loose.

Diagnoses is to NOT just look at the connections, but physically push the connectors of the Display Panel Cable, into the connector at the motherboard, AND back of the Display Panel.

Visually inspect the Display Panel Cable's sheath. Do you see any outward appearance of damage? This means the tiny wires inside may be damaged.
Replace the Display Panel Cable.

Remove ALL power. Remove the AC adapter (Charger), and Battery.
Remove the Keyboard Cover.

Unfasten the Keyboard, LEAVING the Keyboard Cable ATTACHED to the motherboard. Roll the Keyboard over, and lay it upside down on the Palm Rest Cover,

http://support.dell.com/support/edocs/systems/ins1420/en/SM/display.htm#wp1129771

[ NOTE*
Two Philips head screws at top of Keyboard. After removing, lift the top of the Keyboard up a little, slide it a LITTLE towards the Display Panel.
DO NOT lift it straight up at first.
There are 3 plastic tabs on the bottom of the Keyboard, that slide into the Palm Rest Cover. If you pick it straight up you will break those tabs off ]

In Removing the Display Assembly, note where number 1 points to.
This is the Display Panel Cable's connection, TO the motherboard.

Note where number 2 points to. Those cables going to the Mini-Card Antenna, HAVE to be reconnected, right back to the SAME terminals on the Mini-Card. Make a mark on the cables, and matching marks on the Mini-Card.

Use the instructions in Removing the Display Bezel.
Use the instructions in Removing the Display Panel.

View the last illustration in Removing the Display Panel.
Note how the Display Panel Cable attaches to the Display Panel, and Screen Inverter

Number 2 points to the connection at the back of the Display Panel
Number 6 points to the connection to the Screen Inverter
The Black connector that is not numbered at the bottom, is the motherboard connector of the Display Panel Cable.

This is a better view of the screen Inverter,

http://www.ebay.com/itm/Dell-Inspiron-1420-1421-LCD-Inverter-Backlight-Combo-/370274752470

Display Panel Cable checks out? Look at the screen Inverter. This small circuit board is located at the bottom of the Display Panel, and behind the Display Bezel. Closer look at link listed above.

Is the cable coming from the Display Panel Cable, plugged in tightly to it?
Does the screen Inverter look damaged?

Post back in a Comment, and we will go from there.
Regards,
joecoolvette

Jun 09, 2012 | Dell Inspiron 1420 Laptop

2 Answers

Streak in LCD Screen


Judith,

I'm going to state in my own words, as to what I think you have stated, originally; (Please bear with me as this may be clumsy)

" I have a Dell Inspiron 1525 Notebook PC.
This laptop has problems with the Hinges, and Base Cover.

The Base Cover area where the Hinges, and their respective screws go, is beyond repair. To properly repair it, I would need to purchase a Base Cover, Hinges, Hinge Brackets, and a 'Bezel'."

At this stage I am a little unclear,
" I think I would have to buy the entire bottom of the case,
{ Base Cover. Got it }, and replace the bezel that had pieces break off at the hinges too,....."

Hmmm.....Bezel....
Bezel that is close to the Hinges,..........

1) The Display Bezel that is in Front of the LCD screen? Thin plastic frame that resembles a picture frame? Bottom part has Hinge Covers formed in it?

2) Palm Rest Cover?
The cover that covers the top of the Body, of the laptop?

The major portion is below the Keyboard towards you. The rest of the Palm Rest Cover, is two rectangular pieces on each side of the Keyboard.

One of these two pieces broke? (Connector piece?)

3) Center Control Cover?
Is above the Keyboard, and below the Display Assembly.
Has the Power on button in it, for one.

To go on;

You purchased the same model on Ebay?

Same exact model number? Look on the bottom of the laptop.

Reasoning?
Primer:

An LCD screen cannot produce light by itself. It needs an additional light source.
A Backlight is the additional light source.

A Backlight (Present technology), can be a CCFL, or a series of LED lights.
The Dell Inspiron 1525 series used a CCFL.

Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

(Approximately 2mm Thick, by almost the height of the LCD screen, Long.
2mm is a little larger than 1/16th of an Inch. { .0787 )

A screen Inverter is used to convert the power (Electricity) from the laptop, for the LCD screen, and the Backlight.

Point?
The screen Inverter, and the LCD screen, are a MATCHED unit.

Looking at the back of both LCD screens, what is the Dell part number/s, or LCD manufacturer model number/s?

[ One LG example from an article on InsideMyLaptop,

http://www.insidemylaptop.com/replace-lcd-screen-inverter-dell-inspiron-1525-laptop/

Scroll all the way down to Step 14. Read under the first photo, and view the second photo ]

Want to see if the LCD screen you are using, matches the Inverter in the laptop.

Dell, just like all laptop manufacturers, use different manufacturers of LCD screens. (LG, Sharp, Hitachi, etc)
May go with one for a few years, then off to a different one. (Or one's)
May change when a particular laptop model comes out.

The LCD screens may be slightly different models. In turn they would use different screen Inverters.
This = No.

4) Translucent 'streak' going from bottom left corner, to upper right corner.

That translates to;

A) Video Cable damage (Dell = Display Cable)
B) LCD screen damage
C) Bad graphics chipset

Have you used an external monitor to diagnose? A VGA monitor?
If so disregard the following;

A) Laptop OFF, monitor OFF. Connect a VGA monitor to the laptop.
You can use a CRT monitor (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable attached.

Example of a VGA Cable, and VGA port, (Connector),

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

Connect to the left side of the laptop.

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

Hold the Fn key down, simultaneously tap once on the F8 key.
Still nothing showing on external monitor?

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

Try again.

If the display is the same on the external VGA monitor, you have a bad graphics chipset. (G.P.U.)

If Not, the problem lies in the Display Cable, or screen Inverter, or LCD screen.

As you have seen the Display Cable connects to the motherboard, then routes up under the Left Hinge, and up into the Display Assembly.

The Display Cable can be damaged from normal use, over time.
Now add to it that you have had extensive Hinge problems.

If the sheath of the cable shows any visible damage, the tiny wires inside stand a chance of being damaged, also. (Stretched/Broken)

I would suggest testing the Display Cable. Perform a continuity test with a multimeter, for each wire in the Display Cable.

[ An economical multimeter can be purchased for around $8 to $12.
Available in a multitude of stores. An auto parts store is but one example.
Or perhaps you know someone who has a multimeter. Analog or digital is fine]

C) Did you reconnect the Wireless Antenna Cables correctly?
Reaching here but inquiring minds want to know.

http://support.dell.com/support/edocs/systems/ins1525/en/SM/display.htm#wp1179838

http://support.dell.com/support/edocs/systems/ins1525/en/SM/minicard.htm#wp1181360

[ The above is from - Dell Support > Inspiron 1525/1526 Service Manual,

http://support.dell.com/support/edocs/systems/ins1525/en/SM/index.htm

]

D) Would like to know what you did to follow Anti-Static Precautions?


I'm not following on the points of;

1) You installed what you considered to be a working LCD screen, into a laptop you bought off of Ebay; and the display stopped working on the Ebay laptop?

Or;

2) Or is your statement, that after receiving the Ebay laptop, your original laptop would no longer show graphics on it's display?

IMHO I would use the case parts of the Ebay laptop, and rebuild your original laptop.

Awaiting corrections, and possible questions.

Regards,
joecoolvette

Mar 20, 2012 | Dell Inspiron 1525 Notebook

1 Answer

My inspiron intel laptop screen has been darkening and flickering and I tryed to do what my laptop told me but it doesn't work is there another solution?


What did your laptop tell you?
Just curious

1) "Help, I'm being held prisoner inside this laptop"
2) "I'm tired, and I'm going to bed. Lights off"
3) "Use the Brightness control, and brighten this screen up"

J/K

An LCD screen does not produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

An Inverter (Screen Inverter) is used to convert the power from the laptop, to the Backlight, and LCD screen.

90 PERCENT OF THE TIME the fault is the Inverter, when it's a Display Assembly issue.
The rest is a bad LCD screen.

The Inverter is a small rectangular circuit board.
Example,

http://www.nylaptopparts.com/index.php?main_page=product_info&cPath=91_95_125&products_id=299

It is mounted behind the Display Bezel, and at the bottom of the LCD screen.
{The Display Bezel is the thin plastic frame in front of the LCD screen. Resembles a picture frame)

http://support.dell.com/support/edocs/systems/ins9400/en/sm/display.htm#wp1006390

Scroll the page down.
(The Inspiron 9400 and Inspiron E1705 uses the same service manual)

Suggest you connect a VGA monitor to the back of the laptop, to the blue VGA connector.
(Laptop OFF, external monitor {VGA} OFF)

You can use a VGA monitor that is a CRT. Looks like a small TV.
Or you can use a flat LCD screen monitor if it has a VGA cable.

Turn the monitor on. If it is a CRT model, let it warm up.
Turn the laptop on.

The display should automatically be on the external monitor. If it isn't press, and hold down on the Fn key, then tap the F8 key once.
No? Tap the F8 key again. (Still holding down on the Fn key)

If the graphics (Display) is the same on the external VGA monitor, as they it is on the laptop's internal monitor, you have a graphics chipset problem.
Usually requires motherboard replacement, unless you know a really skilled tech.

If the graphics are fine on the external monitor, you have problems in the Display Assembly.

More than likely the screen Inverter.

Dell Inspiron E1705 Service Manual,

http://support.dell.com/support/edocs/systems/ins9400/en/sm/index.htm

Pictorial guide for replacing the LCD screen, and the Inverter,

http://www.insidemylaptop.com/remove-lcd-screen-inverter-in-dell-inspiron-9400/

Suggest:
1) Use an ESD wrist strap, and connect it's alligator clip to a good ground source.
(I connect to an unpainted surface, of the metal frame of an empty desktop computer case.
You can also connect to a unpainted surface of a metal table leg )

2) Use a multi-compartment container for the various screws you will remove.
Label each compartment for the area the screw/s come out of.

If no multi-compartment container is available, you can use a clean egg carton as a substitute.
Label each egg holder.
Some screws look VERY similar to other screws.
DO NOT mix them up.

For additional questions post in a Comment.

Regards,
joecoolvette

Oct 02, 2011 | Dell Inspiron E1705, Intel Core 2 Duo...

1 Answer

My monitor is brighter on the lower left side than on the rest of the display?


Hi,

NOTE : steps below are only for a Dell monitor
There could be two reasons for the same,
1. The monitor settings are bad or
2. The monitor has gone bad.

Request you to disconnect the monitor signal cable from the back of the computer (cable with the blue jack)

A self test feature check would run on the screen. If the screen is bright in the feature check . The monitor has gone bad and needs a replacement.

If the screen appears ok in the self test . Press the menu button on the monitor and select factory reset.

Thanks
Proton

Feb 06, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

I have a Dell 17" LCD monitor with a horizontal band.


You would better served replacing monitor you can buy one for about $100-$120 dell if you lie has one for $99

Mar 01, 2018 | Dell Computers & Internet

1 Answer

Dell monitor problem


hey buddy, its seems to be the display driver problemi think..
please install the correct display driver for your VGA card in the CPU.. let me know?

Dec 13, 2007 | Dell E173FP 17" LCD Monitor

2 Answers

Monitor no display


hi, check out the connector pins if any is damaged or bent, if not try it on a different system just to confirm that its not the display card problem, let me know??

Oct 20, 2007 | Dell E173FP 17" LCD Monitor

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