I cant find my manual for my samsung digimax a50 and i need to turn on the self timer but im not sure how to

You could try this link:

link to A50 manual

It worked with me.

Press right on the multiselector (marked with a one-handed clock) to cycle through the self-timer modes. Start the self-timer by pressing the shutter release button.

In the shooting mode, press cursor-right (marked with a one-handed clock). Each press of the button cycles through the different self-timer modes. Start the self-timer by pressing the shutter release button.

The full details are in the "Self-timer/Right button" section of the manual (page 31 in my copy). If you need a manual, you can download one from the manufacturer's web site at
http://downloadcenter.samsung.com/content/UM/200802/20080221092928218_L830_L730_English.pdf

Do you perhaps mean the L50? If so, the manuals can be found at the following link:

http://www.samsung.com/us/support/downloads/DIGIMAX%20L50

Press right on the multiselector (marked with a one-handed clock) to cycle through the self-timer modes. Start the self-timer by pressing the shutter release button.

Press the self-timer button (right-arrow on the circular multiselector) until the desired mode shows on the monitor. Your choices are 2 seconds, 10 seconds, and double. Press the shutter release button to start the timer.

Full details are in the "Self-timer/Right button" section in the manual, page 27 in the edition on Samsung's web site at
http://downloadcenter.samsung.com/content/UM/200803/20080324103057703_English.pdf

press the self-timer button(clock icon, next by the MENU/OK button) to bring up this function, you can set 2 ,10 seconds or cancel it.

No problem! Like all Samsung Digimax cameras, the self-timer is located by pressing the round navigation key once to the right/East/3 o'clock (it has a picture of a clock engraved on it). Pressing once gives a 10 second timer, twice gives a 25 second timer and the third press gives a multiple-burst self-timer whilst the fourth press will de-activate all timer functions. After selecting the appropriate self timer, depress the shutter button to activate.
I hope that this helps!

Hi - You can download the manual from the link underlined in blue below:

Digimax A50

The shutter sound is set on page 93:



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Informatica

Press right on the multiselector (marked with a one-handed clock).

It's on page 24 of the manual.