Question about Acer AL1916W 19" LCD Monitor

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Display problem when i open my pc i am getting only acer name in the lcd monitor and then it turn to black screen

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>Run a HDD self test>If pass
>Install the OS that should take care of the issue.

If the HDD fails replace the hard drive

Posted on Jul 03, 2009

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Posted on Jan 02, 2017

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Ve an acer travelmate 4001LCi how do i check motherboard if there is a problem with computer when i power on? all i get is black screen, please help..


Diagnose the problem one step at a time.

1) Does the Power On LED light come one, and the Harddrive activity LED flashes?
Hear the fan running?

Attach an external monitor to the laptop. See if you get graphics on the external monitor.

If so the problem is in the Display Assembly. More on that in a minute.

If Not, the problem is the motherboard. The graphics chip may be faulty.
(If so the usual culprit is a loose mounting of graphics chip to motherboard )

You can use a VGA monitor for an external monitor. Another term is CRT monitor. Looks like a small TV.
OR, alternatively if you have an LCD flat screen with a VGA monitor cable, you can use it.

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


1) Laptop OFF, monitor OFF. Plug the VGA cable of the monitor into the laptop's VGA connector.
(Back of laptop)

Turn the VGA monitor on, let it warm up. Now turn the laptop on.

No display shown on the external monitor?
Press, and hold down on the Fn key, (Bottom Left), and tap once on the F5 key.
(Display Toggle-Over Key)

Still no?
Tap once more.
There are 3 options;

1) Just the display screen of the laptop
2) The display screen of the laptop, AND the external monitor
3) Just the external monitor



A) Display on external monitor?
Problem with the Display Assembly. (Acer = LCD Module)

The Display Assemblies main parts are;
1) The Display Cover. The cover that surrounds the LCD screen (Acer = LCD Cover)

2) The Display Bezel. The thin plastic frame in front of the LCD screen. Looks like a picture frame.
(Acer = LCD Bezel)

3) The LCD screen assembly. {An LCD screen is composed of layers} (Acer = LCD Panel)

4) The screen Inverter circuit board

5) LCD Panel brackets (2)

6) Video Cable (Acer = LCD Cable)

7) Hinges {2}
Plus various screws.

Primer:
An LCD screen does not produce light. It needs an additional light source.
The additional light source is a Backlight.

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 is used to convert the power from the laptop, for the LCD screen, and the Backlight.

90 Percent of the Time the Problem is the Inverter

Acer TravelMate 4000 series of Notebook PC - Service Manual (Free)

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

Scroll down to the Travelmate heading.
Go down to the 4th line (Begins with 3230), and scroll across to 4000.
Left-click on 4000.

After you click on the file name (4000) 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.


B) No display on external monitor?
Problem with the motherboard.
Most generally the graphics chipset.

(ATI Mobility Radeon 9700 chipset,

http://en.wikipedia.org/wiki/Comparison_of_ATI_Graphics_Processing_Units#Mobility_Radeon_Series

Chip and Chipset are slang terms for I.C.
Integrated Circuit,

http://en.wikipedia.org/wiki/Integrated_circuit )

The graphics chipset is mounted to the motherboard via a BGA surface mount.
(Ball Grid Array,

http://en.wikipedia.org/wiki/Ball_grid_array )

To explain a BGA surface mount;
The older Intel Pentium 4 processors that used a Socket 478 processor socket, had contact pins on the bottom of the processor.

A chipset using the BGA surface mount does not have contact pins.
It has Solder Balls in place of the pins.

There is no socket with socket holes. There are Copper Pads.

The chipset is set into place with the Solder Balls lining up on the Copper Pads.
Then a specified temperature, and specified length of time is used to melt the solder balls.
This solders the chipset to the Copper Pads, which in turn solders the chipset to the motherboard.

Excess heat, due to the laptop is overheating, can partially re-melt the solder connections made, and cause a poor contact.

May be caused by the laptop is dirty inside, and the cooling capacity of the cooling components, has dropped tremendously.

May be due to a poor cooling system design in regards to the graphics chipset.

The cooling system may be adequate enough to keep the Processor within it's specified temperature operating range, (Thermal Limit), but NOT adequate enough to keep both, Processor AND graphics chipset cool.

Using the HP Pavilion dv9000 series of Notebook PC, this video gives information on the problem in more detail,

http://www.youtube.com/watch?v=bnkQNmKauEc

For additional questions please post in a Comment.

Regards,
joecoolvette

Sep 27, 2011 | Computers & Internet

1 Answer

Hi, I have acer aspire 5520,2 Gb RAM... When I turn on my acer,everithing works just fine,exept monitor,it remains black,When I try ecternal monitor,it works fine,windows wors fine to,everithing but the...


Aspire 5520 has LCD Display. The screen displays becomes dark/ dim if there is no backlight.
There are two parts responsible for lighting the display. First is the CCFL (Cold Cathode Florecent Lamp), which is the back light and the second is the Inverter board, which provides high voltage to the CCFL. These parts are inside the LCD screen. Either of the parts may be faulty or in some rare cases both. Also, the video data cable may be loose or faulty, which can be identified only after opening the top cover.
So, my advice is that you get it properly checked by any professional for replacement of Inverter or CCFL.

Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH

Jun 22, 2011 | Acer Aspire 5520-5579 Notebook

3 Answers

Monitor comes displays Acer logo and goes black after 3 seconds, with indicator light still green.


If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed ACER monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Oct 18, 2010 | Acer AL1916W 19" LCD Monitor

1 Answer

Black screen on acer laptop


Black screen is a number of things.
*If you`re laptop turns on but you see no display at all..does`nt even post,Then its the GPU on you`re motherboard thats faulty & will need replacing. Or
*Its you`re screen inverter which is a small circuit board located inside on the bottom of you`re LCD screen which needs replacing.Theyre cheap and not expensive.
*Do a test for example : Connect you`re laptop to a PC monitor Via VGA to VGA cable.Connect to youre laptops PC input to your monitor PC input,Then turn you`re laptop on.If it displays on you`re monitor then its the problem with your LCD laptop screen,Or the inverter needs replacing.
If theres no display on the pc monitor then its You`re motherboard onboard GPU (graphic Card) - Which you will need to replace the motherboard.

Oct 18, 2010 | Acer Aspire 5500 5570-2609 Laptop

1 Answer

My Monitor will not say on. Keeps turning off or Black screen when i click to do something. I am using my Laptop to ask this question


blorip, You will need to prove that x193w lcd monitor also does same when connected to different "known-good" pc!! Learn how to tell the difference between a "black screen" and a "black n blank screen" with use of a bright flashlight held 1 inch from lcd panel and at different angles. Yes, there is a difference!!! If problem proves not to be PC software, then must be problem with ccfl back-lit lcd display. You should view DIY repair and disassembly video clips at YOUTUBE before attempting to do any repairs to your Acer unit. Read some stuff in my fixya profile( pages 30 and up) for more info and links. Also view fixya profiles of "budmrtn" and "buddymc" . Follow links you find in profiles. Good luck with the repair. 12fixlouie

Jul 26, 2010 | Acer X193W LCD Monitor

1 Answer

Monitor Acer Al 1914, no signal


Check your connections to the PC. Make sure that they are nice and secure. If there is a resolution problem setting it should display the boot process and then go blank after starting the operating system.

Oct 28, 2009 | Acer AL1914 19" LCD Monitor

1 Answer

TURNING ON BUT NO SCREEN DISPLAY


Did you try to connect to external monitor see if you get picture?
If does, You need to look very close the laptop LCD if you have seen any shadow pictures? if does your Inverter or Bulb is Gone. If no pictures on external, Your graphic card is done.
JMC

Aug 18, 2009 | Acer Aspire One PC Notebook

1 Answer

ACER 22" monitor flashes on at PC startup, then goes black


Your monitor has a bad INVERTER, look on eBay.

Jun 27, 2009 | Computers & Internet

1 Answer

Power supply on 17" acer monitor


franh, Typical of a lcd/fpd monitor! There is nothing you or hundreds of others can do to repair it all by yourself. I have repaired 3 monitors and helped tutor 2 others on fixya with their monitors. All had same exact symptom as your monitor. I need you to do a simple test for me. With failed Acer monitor near to your Fully Booted PC with a known good desktop being displayed on back-up monitor, quickly swap out the monitor cables from the back of the PC. Keep touching the CTRL key on you keyboarb every 30-50 seconds to keep the PC from sending out sleep mode command to monitor while doing the reconnect of acer to your PC monitor output port. Make sure the Acer also is connected to a live wall outlet/power strip. Turn on the Acer and note what happens. If screen shows a sharp clear image for a second, then goes black, do the following. Get a bright flashlight and shine it on the screen from a distance of 1 or 2 inches and tell me if you can see the desktop display. get back to me with your observations. I'm louie12fix on fixya or lmistyrel@ aol.com.

Apr 05, 2009 | Acer AL1916W 19" LCD Monitor

2 Answers

Acer AL1916W pluged into lap top but can't get both to run.


Have you used the Fn button on your laptop and changed the video display Icon on the Blue Function keys. You need to change the display wait a few seconds for it to take affect. There are several modes try them all so you know how to use them.

Mar 20, 2009 | Acer AL1916W 19" LCD Monitor

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