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	Replies: 3 - Pages: 1 - Last Post: 22-May-2012 15:02 Last Post By: MasterG	Threads: [ Previous \| Next ]

alanhuro

Posts: 1
Registered: 25/09/11

Satellite M40 - Monitor doesn't show anything
Posted: 25-Sep-2011 20:56

Hi All,

I need help. My laptop is Toshiba Satellite M - 40 model psm40c-jm800e. I don't know what the problem is but when I turn it on the monitor does not show up anything. I connect the external monitor but still had the same problem. I bought the new motherboard from Ebay and it has the same problem. Nothing display on the screen. Everything else appears to be working such as the LCD is on, the fan is running, when I press the function key to switch between external and internal the LCD on keyboard was responding but nothing show up on internal or external monitor. Please let me know what could possible wrong with it.

Thanks
Alan

C3PO

Posts: 1,995
Registered: 01/10/09

Re: Satellite M40 - Monitor doesn't show anything
Posted: 26-Sep-2011 07:17

in response to: alanhuro

Hello

Fact is that’s a serious hardware malfunction and it could be another part as well like mainboard, RAM modules, etc. It must not be the mainboard or internal LCD.

You should contact an authorized service provider for professional help. They can make an exact diagnostic what is wrong and sort this out for you.

nmoum

Posts: 1
Registered: 18/05/12

Re: Satellite M40 - Monitor doesn't show anything
Posted: 18-May-2012 15:58

in response to: alanhuro

Hello

I have exactly the same problem as you.

On my M40 the power button lights up, the fan works and the keyboard leds work but the screen doesn’t show anything and it doesn’t seem to boot.

I notice that if I leave it like that (running without display not working) for a while (1/2 hour) and then I try again it usually starts without any problem. (bad solder?)

This problem occurred a couple of years ago and the service told me it was the motherboard so I bought a new Laptop and left it be.

Recently I bought a new motherboard from ebay and a new power button board and I replaced them.
The M40 worked at first but after a few days I got the same problem !!!

Screen doesn’t light up , fan and keybord and cd work
It is great laptop and I want to have I working order.

Please do you have any suggestions??

MasterG

Posts: 2,685
Registered: 21/09/09

Re: Satellite M40 - Monitor doesn't show anything
Posted: 22-May-2012 15:02

in response to: nmoum

The M40 worked at first but after a few days I got the same problem !!!

Either the motherboard died again or one of the parts don’t function anymore… I mean parts like CPU or memory modules… such faulty parts would prevent the notebook from booting up…
I don’t think it could be an display issue because in such case you should see something on 2nd external monitor…

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