Question about Mitsubishi WS-65809 65" Rear Projection Television

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I am trying to hookup my lap top to the tv.I allready have hood up the blue,green red RCA and the 2 audio up on back of tv.My toshiba laptop has a 15 pin which is hooked up with the proper adapter.acording to Comp-usa.My dvd player and the tv works fine and the lap top works fine on a newer samsung with straighr 15 pin to 15 pin.The book says noting about laptop to tv

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  • kkader1 Mar 17, 2011

    please tell me what to do

  • kkader1 Mar 17, 2011

    f1 does not work or f2 and down the line.remember the laptop works great with other computer

  • kkader1 Mar 18, 2011

    I already wrote that their is no key on the works on other tvs.The tv is the problem.I am unable to find a sourse.



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Hello there,

Asssuming you've got all of the correct hardware to make this work and it's correctly connected, all you need to do is set the DTV input to ON in the ASSIGN INPUT menu, select the DTV input using the mitsubishi remote, then switch the laptop to an external monitor setting. Easy huh . . .

A. Connecting to the TV:

Connect the red, green and blue component jacks to the sockets I've ringed in the picture below. Make sure you are connecting the red video jack to the red socket and not the red audio jack. Don't worry about the audio connections for the moment. You will need to connect your laptop directly to the TV to use the TV speakers as your PC speakers. A 15 pin (D-Sub) cable will not carry an audio signal. We can deal with that later.

I am trying to hookup my lap top to the tv.I - belectric_139.jpg

B. Switching the DTV input ON:

1. Press the MENU key on the mitsubishi remote to open the on-screen menu
2. Use the DOWN arrow to highlight INPUT ASSIGNMENT then press ENTER
3. Use the DOWN arrow to highlight DTV
4.Press the RIGHT arrow repeatedly to set the DTV value to ON (if not already on)
5. Press the HOME key to close the menu

C. Selecting the DTV input:

Press the INPUT UP/DOWN buttons on the mitsubishi remote repeatedly until the DTV input is selected. (These are below the number keys, next to the CHANNEL UP/DOWN keys.)

D. Switching to an external monitor setting on the laptop.

Hold down the FN key (usually next to CTRL) and then press F5 once. On some laptops this may be F4. One of these should have a small icon of a PC and a monitor on it. Whichever one has this icon is the monitor switching key. With FN held down, each press of F5 or F4 will change the monitor configuration between:

- TV screen ON, laptop OFF
- Both ON
- Laptop ON, TV screen OFF

That's it! Well . . . not quite.

Your TV was not designed or intended to be a computer monitor. It has no PC monitor input sockets. With the correct adaptor/interface between the laptop and the TV, it can probably be made to work, but this is not guaranteed.

I really need to know what adaptor you bought. Most of these are one-directional. You need a 15 pin D-Sub to component adaptor. If you've bought a component to 15 pin D-Sub adaptor, it's not going to work. It's designed to only work in the opposite direction.

Please make sure you have done all of the above and then let me know whether you have video from the laptop on the TV screen. We can then move on to using the TV speakers for PC audio. If you don't have video, then you may not have the correct adaptor or it may not be possible to use your TV as a PC monitor.

If you don't have video, I will need to know which component/D-Sub adaptor you bought.

Hope this helps - I look forward to hearing back from you. This one could be quite a challenge!


Posted on Mar 17, 2011

    DILLIGAF Mar 17, 2011

    You're going to need something like this to make it work:

    DILLIGAF Mar 18, 2011

    Thanks for getting back to me.

    Please refer to my instructions above.

    You have to connect to the sockets ringed in the picture above and then make sure the DTV source is set to ON in the INPUT ASSIGNMENT menu. You cannot use Component 1 or 2 sockets as they are not suitable. If the DTV input it set to OFF, you wont be able to select it as an input/source.


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On the keyboard of the PC: is there any key to press to direct output to TV(possibly F1 F2 F3 .... )

Posted on Mar 15, 2011


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