Question about Acer Aspire 5500 5570-2609 Laptop

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My acer aspire 5732z is no longer picking up wireless connections!! this came on suddenly, although i had unplugged the power cable shortly before this problem started. the troubleshooter (win 7) keeps telling me to plug in some ethernet cable. i have no such cable. please, can you help? Thanks. emoojay.

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  • emoojay Apr 07, 2011

    My problem is more serious than that, am afraid. I can see the wireless button and pressing the button does not turn the wireless on. it stays the same, ie keeps showing the red x on the wireless icon. when i go to device manager and click on my network adapter, i can only see an ethernet one showing. am assuming there should be a wireless one as well. when this problem first occured, i used the troubleshooter to solve the problem, and it worked for a while. now when i try the troubleshooter, it says its unable to fix the problem, and thats when i get this suggestion to plug an ethernet cable in.

    more help to solve this problem will be greatly appreciated.

    thanks.

  • emoojay Apr 07, 2011

    Thank you for taking the trouble to give this tips. Funny thing though, when i turned the laptop on this evening, the wireless started working by itself again..i did turn it on once this morning and it was still not working then. the only thing i've done is to take the battery out of the laptop, and then put it back again. now its working and i can see the wireless as well as the ethernet when i go to network adapter. however, it worked a few days ago as well after having the same problem, so am goin to wait and see if it happens again, then i'll try all the tips you just gave me above. i'll let you know either way.

    Thanks a lot.

  • emoojay Apr 11, 2011

    hiya, just wanted to let u know how the problem with my wireless is. since the last time, i have had the same thing happen again once after i shut down. i did d same thing again, ie took the battery out and replaced it.. it worked again.. this time i went tru some of the stuff u said to do.. i clicked the update driver thing.. it did say that i had the most recent driver etc. anyway, that was a couple of days ago now, and i havent had anymore problems since.

    so i guess ur advice worked. thanx a lot for ur help. really apreciate it. Have a nice day.

  • emoojay Apr 11, 2011

    The tips were really helpful.. explanations were very clear and the instructions were easy to follow. Thanks a lot!!

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You turned off your wireless adapter by accident.. the switch for it is in the top middle of the laptop where the power button is,, the wireless indicator has to be green fr it to be on. The LAN cable is the other type of connecting it supports. like at the side of the device, see that huge over grown phone like jack thingy (rj45 port) thats your lan port. you can connect your modem directly to it :p and thats the cable the pc is referring to..

any way turn on the wifi adapter. there is eighter a switch or button in the middle where the power button is, or a key combination usually FN + one of the function keys,, look at keys F1 - F15 see some icons in blue,, look for w\one with a wireless icon press FN + FX ,, FX being what ever key it is..

now once on the icon appears in the lower right corner of the screen, click it, click connect to a network, select your wireless network, click connect,, enter the key if necessary.. thats it your done..

let me know if you need more help.

Posted on Apr 06, 2011

  • Rishi Roshan Ali Apr 07, 2011

    ok that means the adapter is somehow disabled of damaged.. click start right click computer click properties
    click device manager, right click and click scan for harware changes.in the list click the + next to network adapters see if the wireless is there, right click on it and select enable.

    close everything on screen
    click start control panel, network, change adapter settings you should see the wireless and wired connection, right click the wireless and click enable try it now..

    if that fails
    click start/ all programs / accessories / system tools system restore. follow the onscreen instructions and restore the system to a few days before it stopped working.

    try those and let me know what happens

  • Rishi Roshan Ali Apr 08, 2011

    no problem

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Acer aspire 5732z


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Acer Aspire 5732Z series of Notebook PC?

Need to test whether the problem is;
A) Graphics chipset,
Or,
B) Video Cable,
Or,
C) Inside the Display Assembly

Inside the Display Assembly problem could be;
A) Screen Inverter
B) CCFL Backlight
C) LCD screen

1) CCFL Backlight:
CCFL stands for Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.

According to searches for an LCD screen, the Aspire 5732Z series of Notebook PC; uses one single CCFL for a Backlight.

One example,

https://www.laptopscreen.com/English/model/Acer/ASPIRE~5732Z/

Average thickness is 2mm. That is a little larger than 1/16th of an Inch. Average length is almost as long, as the LCD screen is in height.

The CCFL contains MERCURY, just like it's larger 'cousins' used in homes, and businesses.

Mercury is a POISON. The bulb breaks EASILY.
If a CCFL is the problem, I STRONGLY recommend letting a professional change the CCFL out, OR just replace the LCD screen as a unit.
It contains the CCFL backlight,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

View the last 8 photos.

Use a flashlight, and shine it at the LCD screen at various angles.
If you can make out graphics on the LCD screen, the Backlight is bad; or the screen Inverter.
90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter.

2) Graphics chipset:
Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port, on the back of the laptop.
The VGA port is on the Back of the laptop, and next to the Ethernet port.
[ Which is right next to the DC Power Jack (DC_IN), that you plug the AC adapter (Charger) into ]

This is an example of a VGA cable, and VGA connector (Port),

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

Scroll down for the VGA cable example. Note that color of connector does not matter. It is usually Blue in color, though.

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.

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.

No?
You have at least 3 display options available;
A) Internal monitor of laptop ONLY
B) Internal monitor of laptop AND external VGA monitor
C) External VGA monitor ONLY

Press, and hold the Fn key down.
(Bottom row of Keyboard, second key from left)
At the same time tap the F5 key once.
(The F5 key is the Display Toggle-Over key)
Still no?
Hold the Fn key down again, and tap once more on the F5 key.

No display on the external VGA monitor indicates a bad graphics chipset. More than likely the problem would actually be the mounting, of graphics chipset TO motherboard.
It is soldered directly to the motherboard using a BGA surface mount. (Ball Grid Array)

I doubt you have a graphics chipset problem, but this flowchart method entails that; and no 'stone should be left unturned'.

It would 'bite' if you tried diagnosing without checking the graphics chipset, and replaced video cable, screen Inverter, and LCD screen; only to find you needed repair on the graphics chipset mounting to motherboard; or replace motherboard.

3) Video Cable:
This is an example of the Video Cable. Acer deems it the LCD Cable, and that's what we will refer to it as also,

http://www.ebay.com/itm/Acer-Aspire-5732Z-LCD-Video-Cable-DC020000Y00-/360558336892?pt=US_Video_Cables_Adapters&hash=item53f2f39b7c

The long White connector at Top, plugs into the motherboard, in an area to the Top/Left of the Keyboard.
It then routes under the left Hinge, and up into the Display Assembly.

The smaller White connector below it plugs into the screen Inverter.
The LCD cable then connects to the back of the LCD screen, with the large connector shown to the Left side.

The small connector below it plugs into the Camera.

Just from normal repeated opening, and closing of the laptop; the LCD cable may become pinched.
This can cause pulling on it, and result in loose connections at motherboard side; and/or screen Inverter, and/or LCD screen side.

Could also cause damage to the LCD cable.
Stretched/Broken wires.
If the sheath of the LCD cable looks to be damaged, so may be the tiny wires inside the LCD cable.

http://www.insidemylaptop.com/disassemble-acer-aspire-5740-aspire-5340-laptop/

I will include a link to a free Service Manual, for the Aspire 5732Z series of Notebook PC. The above link, and other pictorial guides; are more for you to get a 'hands on' look, besides just looking at a Service Manual.

Here the repair is to Physically see, if you can plug those connections of the LCD cable, in tighter.
Visual inspection alone will NOT do.

http://www.insidemylaptop.com/replace-lcd-screen-acer-aspire-5733z-4851-laptop/

Tried to plug the connections in tighter, and does not cure problem?
Then the LCD cable is to be removed, and a continuity test performed on ALL wires in the LCD cable; with a multimeter set to OHM's. (1K)

Or perhaps take the LCD cable down to the nearest small computer shop, and have the resident tech check it for continuity.
Should only be a couple of bucks.

You MUST rule out the LCD cable before going on. Some may feel with the low cost of the cable, they may just replace it.
Parts changing I know, and not professional; but to each their own until you learn.

4) LCD cable checks out it's time for the screen Inverter.
The screen Inverter is a small circuit board, that converts the power, (Electricity) of the laptop; for the LCD screen, and CCFL backlight.

http://www.ebay.com/itm/New-LCD-Inverter-Board-Backlight-for-Acer-Aspire-5332-5532-5732Z-5732ZG-Series-/300612724754?pt=US_Laptop_Screens_LCD_Panels&hash=item45fdea2812

To test requires a sensitive multimeter. Read fairly expensive.

http://www.fonerbooks.com/test.htm

The plastic frame in front of the LCD screen is the Display Bezel.
Acer? LCD Bezel.
The screen Inverter is located behind the LCD Bezel, and mounted towards the bottom of the LCD screen.

Due to;
A) Non-accessibility of a sensitive multimeter
B) Ease of accessibility of replacing
C) Low cost

,many decide to just replace the screen Inverter.
Again parts changing, but IMHO is justified this time.

[No. You do not want to drag the partially disassembled laptop, down to the nearest computer shop.

A) No tech really wants to come in on someone else's repair, and pardon me; but really not after a non-tech.
Liability issues are also involved.

B) Judge JUST one hour of their service rate, compared to the price of a screen Inverter ]

5) Screen Inverter checks out? (Replaced)
Then the problem is the LCD screen.

Service Manual,

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

Go to the paragraph that starts with Aspire 1200. (1200 in Blue)
Drop down to the 9th line. (5720 in Blue)
Scroll across, click on the blue - 5732Z

[Ignore if you are aware;
This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
(I would recommend upgrading to the newest version, though)

After you click on the file name (5732Z) it may take up to 30 seconds, before the first page comes up ]

For additional questions please post in a Comment.
Regards,
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