Is there a manual for the Logitech sr34 keyboard, I want to program the function keys

There is no manual specifically for this keyboard: The following is a keyboard diagram which may answer most of your questions: The small mode button above and between the F4 and F5 keys switches between Function and F-Key modes for the traditional Function keys. Experiment a bit when you are not working on something important.
https://secure.logitech.com/assets/42401/us-keyboard-layout.pdf
Also, check
http://support.logitech.com/en_us/product/keyboard-k120/faq

As there is no software for this keyboard, how could there be separate functions for the Fn keys?
The F keys are whatever your hardware (computer) says they are. http://support.logitech.com/product/keyboard-k120#download

Did you install the Logitech Set Point software? If you did, you can edit the Function key assignments by opening that program. There are other ways to change your keyboard settings, pressing Left Alt and Shift can do this with Windows 7 by default. To check this in Windows 7, click Start > Control Panel. Under Clock, Language, and Region select Change Keyboard or other Input method. Once that window opens, click on the Keyboards and Languages tab and click Change Keyboards. Then select the Advanced Key Settings tab. There is a section marked Hot Keys for Input Language.

The manual and other documentation for the Logitech ex110 is available here: http://www.logitech.com/en-us/433/154?selectedcrid=433&selectedcid=154&WT.z_sp=Product&osid=&bit= .

I hope this helps.

Cindy Wells

I was going to type this out but found the help on logitec is pictorial and might make more sense ;-]
Q: Customizing my S 510 Keyboard Function Keys with Logitech software (SetPoint) How do I use Logitech's Mouse and Keyboard software (SetPoint) to customize my S 510 keyboard Function Keys?
Cordless Desktop S 510
Model Number:
Y-RAK73 (Keyboard)
M-RBN114 or M-RBG114 (Mouse)
The Function Keys, or F-Keys, are the keys on labelled F1 through F12 above the number keys.
NOTE: To use the programmed F-Key, make sure to toggle on Enhanced F Keys Mode by pressing the F Mode key. The F Mode LED on the receiver will be off in Enhanced F Keys Mode.
Similar to the Programmable Keys, the F-Keys can also be programmed to perform certain functions.

1. Click the My Keyboard tab on the top of the screen and select the Keyboard F Key Settings tab on the left.
   
2. Select the F key you wish to customize.
   
3. Now select the task you want the button to perform under Select Task. You can also click Help to find detailed descriptions of these options.
   
4. Click on Apply then click on OK to close SetPoint.
   

The keyboard only works in basic functionality on a linux system media keys may not be support without a third party interface.

buy another keyboard which have FN key... theres a kind of keyboard that are not using FN key...

i need instruction on how to program it

Normal 0 Go to Control Panel.
1. Click on Keyboard.
2. When the Keyboard Properties come up, CLICK on Key Settings.
3. Then set up the keys by selecting the Key to be changed.
Hope this will help some. Bud

When I bought my s510 recently I couldn't use the function keys even with the software that came with the keyboard and mouse.

I had to actually download new logitech software for the s510 which allowed me to use the function/extra keys.

Navigate to:
http://www.logitech.com/index.cfm/keyboards/keyboard_mice_combos/devices/145&cl=US,EN

On the right hand side of the screen you will see 'Support Center' below it click 'Downloads,'
From there you can choose your OS w98 and language and download the software you need to get your keyboard working the way it should.

unfortunately logitech dosn't have there usuer manuals downloadable on there website. however it might be worth a try to go to www.logitech.com click the support link and either check the forum or actually e-mail logitech support directly asking them for a manual or at least a lit of function keys. good luck