Fn F5 not working

The Bravia needs the video input to be changed to PC when you connect a computer to the Bravia.
You still need to press FN + F5 to divert the laptop video data to the video port on the laptop for the TV.

Once you made all the proper connection, meaning the hdmi cable from your laptop to your tv, and tunning your laptop to the right hdmi port (like hdmi side, rear1 or 2 however many hdmi input your tv has). Then I believe on acer model, you need to press the FN button and the F5 button at the same time that switches your external video source, Leave the Fn button press and then slowly press the f5 button key until your screen is display on the monitor HDMI. Like said earlier, you need to make sure the tv is tuned to the correct HDMI port.

If your projector displays no image, this could be a variety of problems. First, check that the projector has power. On the top of the LCD or DLP projector should be some lights. With power, those lights will be on. If it has power, check to make sure that the projector lamp is firing. If so, go to the source. Make sure that it is connected with a VGA cable or USB cable to your computer, or with an RGB cable, S-Video cable or DVI connection to your VCR/DVD Player. From a laptop computer, the VGA cable should be connected to the VGA out connection, and into the VGA in connection on the projector. Are both ends tight?
If everything has checked out so far, the solution probably lies with the external monitor port. Check this by holding the Fn key on the keyboard, then press the F7 key. (On some computers, the key might be F5 or F3. Try these if F7 doesn't work) Each time you press the Fn / F7 combination, you will cycle your display through the following settings:
* Press Fn / F2 or F2 once: The laptop screen only
* Press Fn / F2 or F2 twice: The projector port only
* Press Fn / F7 or F2 three times: Both the laptop and projector port
* Wait a few seconds after each time you press the key combination to let the LCD or DLP projector refresh. Nine times out of ten this will result in seeing your projected image.
this should help you :)

HELLO,

If your LCD or DLP projector displays no image, this could be a variety of problems. First, check that the projector has power. On the top of the LCD or DLP projector should be some lights. With power, those lights will be on. If it has power, check to make sure that the projector lamp is firing. If so, go to the source. Make sure that it is connected with a VGA cable or USB cable to your computer, or with an RGB cable, S-Video cable or DVI connection to your VCR/DVD Player. From a laptop computer, the VGA cable should be connected to the VGA out connection, and into the VGA in connection on the projector. Are both ends tight?

If everything has checked out so far, the solution probably lies with the external monitor port. Check this by holding the Fn key on the keyboard, then press the F7 key. (On some computers, the key might be F5 or F3. Try these if F7 doesn't work) Each time you press the Fn / F7 combination, you will cycle your display through the following settings:

* Press Fn / F7 once: The laptop screen only
* Press Fn / F7 twice: The projector port only
* Press Fn / F7 three times: Both the laptop and projector port
* Wait a few seconds after each time you press the key combination to let the LCD or DLP projector refresh. Nine times out of ten this will result in seeing your projected image.


Hope this helpout....

Hello,
When the hardware connection is made: S video in laptop port and S-video in TV there remain two things to do.
1. On the computer, extend your desktop to show on the TV. On my laptop I press Fn-F5, and an OSD appears. I can choose the output to the TV and the internal LCD by holding the Fn key while pressing the F5 key. Each time I press the F5 key the focus moves to another icon (TV only, Monitor only, LCD and monitor, etc.)
Once you know how to externd the display or divert it to the external screen, you can take care of the TV.
On the TV remote (the easiest way), there must be a key labeled AV, AUX, or some such thing. Once you press it, and OSD appears on the TV screen giving you several input options :TV, AV, S-Video, PC. Select S-Video. It will tell you no signal if you have not yet diverted screen output of laptop to it.
Use the Fn-Fx key to send the signal to the TV.
This may not be the way to configure the connection for your laptop-TV combination, but I am venturing it anyway in the hope that it will help you solve the problem.

However there are no better sources of information than your laptop manual, and the TV user guide.

It could be the 'back light' is burned out.
Or
Press Fn and F5 simultaneously to make sure the display
priority is not set for the built-in screen.
Or
Press the 'brightness up' key a few times.

Display problems
Here are some typical display problems and their solutions:
The screen is blank.
Display Auto Off may have gone into effect. Press any key to
activate the screen.
You may have activated the instant password feature by pressing
Fn and F1 simultaneously. If you have registered a password, press
any key, type the password and press Enter. If no password is
registered, press any key. The screen reactivates and allows you to
continue working.
If you are using the built-in screen, make sure the display priority is
not set for an external monitor. To do this, press Fn and F5
simultaneously (once). If this does not correct the problem, press Fn
and F5 simultaneously again to return the display priority to its
previous setting.
HINT: Holding the Fn key and pressing the F5 key several times will
advance you through the display options.
If you are using an external monitor:
❖ Check that the monitor is turned on.
❖ Check that the monitor’s power cord/cable is firmly plugged in.
-- Try adjusting the contrast and brightness controls on the
external monitor

Check the BIOS - some laptops can be set in there to start with the LCD, monitor or both.

Hope this helps

From user manual (page 68):
Your computer comes with a built-in display panel, but you can also
connect an external display device to an available video port, as
follows:
❖ An external monitor or projector via the RGB (monitor) port
❖ A TV, VCR, or DVD recorder via the S-video (TV-out) port
Before connecting an external monitor or video projector, configure
your computer for the type of device you are connecting. To do this,
refer to the documentation for your operating system and devices

So you have to use an RGB cable or a S-video cable : your cable should be plugged into 15 pin VGA port in your PC and plug it into a correspondent port in your TV.
Try also S- video and select correponding input in your TV set (Both connection type DO NOT carry sound: use your audio connector from PC to TV audio input.)
Configure your extended screen using your manual instruction:
Once you have connected an external display device, you can
choose to use the internal display only, the external device only, or
both simultaneously. The quickest way to change the display output
settings is to use the display hot key (Fn + F5):
1 Press Fn and F5 simultaneously.
2 While holding down Fn, press F5 repeatedly until the setting
you want takes effect. Briefly pause each time you press the F5
key to allow time for the display to change.
This hot key cycles through the settings in the following order:
❖ Built-in display only
❖ Built-in display and external monitor simultaneously
❖ External monitor only
❖ Built-in display and TV
❖ TV only

Plug cable between TV and Laptop video output and press Fn+F5 to swap display to TV;
If it is not working, check if the TV setting on from BIOS.
If it still no luck you better change another cable to try.

good luck.

do you have the connector.to connect both the units.