Question about Acer TravelMate 2300 Notebook

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Acer travelmate(belongs to my grandson), one rear usb three side mounted. Rear socket had been damaged, plastic contact support missing, pins touching case. Before I looked at it, notebook crashed if any USB port used. Cleared pins touching case and tried memory stick in side mounted ports. PC did noot pick up stick. Tried connecting Digital camera - 'USB error' comes up on camera. Have checked Device Manager and all are shown as workoing correctly. Tried un-installing and letting XP pick them up again. Picked up and showing as working correctly but no dice when try to connect to any port. Help please

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  • Mike Waldron May 11, 2010

    Hi,

    By 1 of the USB ports shorting out, they,re probably all inter-connected. hence blown fuse on motherboard to USB Ports.

    Test with a multimeter. 5volts on 2 outer pins of USBs.



    Mike @ Compurepair.

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Motherboard dont have fuse has diodes which act similar to fuses but wont be blown.only things that will blow in that area are transistors or capacitors;but if these were blown usb's would not be detected.
in device manager were its says working correctly it relates to software istalled and working properly it cant tell u that the hub connection is damaged internally.
if your usb's are on card and connected to motherboard they can be replaced otherwise if built into motherboard youll have to take it to repair shop.
if the only problem is when u connect a usb device and not causing any other problems,u could use usb hubs that go into the pcmcia

Posted on Apr 12, 2008

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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.

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


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The Display Assemblies main parts are;
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2) The Display Bezel. The thin plastic frame in front of the LCD screen. Looks like a picture frame.
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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.

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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.
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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?
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(ATI Mobility Radeon 9700 chipset,

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

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

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

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

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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

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