The scroll wheel won't work

Press the MODE button to enter the Playback mode. Use left/right to select the video to view. Press the shutter release button to start the playback. Press the shutter release button again to stop the playback.

This is from page 15 of the manual.

You need to understand the relationship and teractivity of aperture, shutter speed and iso. In Av mod, you choose the aperture and the camera makes thw shutter speed agjustment, In Tv mode, you set the shutter speed and the camera makes the aperture adjustment, In manual, you have to set both shutter speed and aperture manually. If the ISO mode is set to AUTO, the camera chooses the sensors sensitivity to light automatically. Change to specific ISO
(200-400 for daylight and 799-1600 for night). Take a picture in AV mode and note what shutter speed the camera chose. Then switch to TC mode choose the same shutter speed and see if camera chose the same aperture(f-stop) you chose in first shot. Change to Manual and choose same f-stop and shutter speed the camera chose for you in the other modes. Compare all three photos. They should be almost if not exactly the same exposure wise.
In Tv mode choose a dlowers shutter speed, In Manual choose a combo of slower shuuter and wider f-stop(smaller number). Read your manual.

You have described Aperture priority mode: you set the f/stop and the shutter speed changes to make the exposure correct.

Full manual mode requires you to set both the shutter speed and the f/stop. You are seeing the recommended f/stop for the shutter speed you have selected.

To set the shutter speed, press and hold the mode button and then turn the thumb wheel on the right until M (for fully manual control) or S (for shutter priority auto exposure) appears in the display. Remove your finger from the mode button and the thumb wheel will now adjust just the shutter speed. If you're in manual mode the aperture setting will need a separate adjustment for correct exposure, if you're in shutter priority mode the camera will select the aperture suited to your shutter speed for each exposure.

Please take a moment to rate my answer, or if you wish to know anything else please add a follow-up comment and I shall provide further assistance when I'm next online (I'm in the UK and it's just after midnight right now).

I had this problem with my S9500, the small dial/wheel for changing shutter speeds, F settings, etc stopped working. Luckily I had a few weeks left on the extended warrenty and had it sorted for free. Fuji had to replace that whole part of the mechanism as something internally went wrong.
It may be something simple if you are prepared to look at it yourself. I know it's not the same, but when the thumbwheel stopped working on my ipod, I took it apart and found a few grains of sand had gone between the contacts thus breaking the circuit. Cleaned it out and hurrah! It works again.

See pages 36&37 of the manual.

If you haven't got one, you can download it here.

In M mode...

Turn the selector dial to adjust shutter speed.

Hold down the AV+/- button (top-right of rear screen) and turn selector dial to adjust aperture setting.

As for Av mode, this is perfectly normal that you cannot set the shutter speed. Av mode means that you decide on the aperture setting and the camera (not you!) decides on the correct shutter speed.

Hope this helps,

Matt.

Hi, the solution to the problem seems to be the following. When u press play, once, you get 1x play. If whilst playing you press play a second time the DS-30 goes into slow play mode, and if you press a second time it goes into fast mode. For those of us who accidentally went into either fast or slow mode, just press the play button again, during playback, until "play" appears on the LCD screen. Apparently it is as simple as that.

set dial to s-then adjust to desired setting using command wheel by thumb.

In addition to the "quirks" of the Landscape and Aperture Priority Modes (neither mode works as documented!)..... The camera also behaves differently in full Manual Mode (it changes the settings, whether you want it to or not to compensate for available light)... At lower Zoom Levels, the camera will adjust the Shutter Speed Only, to try and compensate for available light... For example: with the Camera preset to F5.6 Aperture, and 1/48 sec. shutter speed, the camera will adjust the shutter speed between a range of 1/30 to 1/291 sec, to try and "auto expose" the shot for lower or higher light levels, even though you're in manual mode. At an Aperture Setting of 2.8 and 1/48 of a second, the number of internal steps in shutter speed the camera is willing to take, increases dramatially - for example: shutter speeds up to 1/600 of a second, even though you have the shutter set to 1/48 in manual mode. The camera WILL NOT attempt to adjust the Aperture to compensate for proper exposure in available light (OR WILL IT??).... It depends on your Zoom settings! It won't if your're near to full wide angle, but IT WILL if you are using the Zoom. Once you cross some unknown zoom threshold (it doesn't have to be at full zoom), then the camera begins to change both the Aperture and Shutter speed to compensate for available light, even though you are in "Full Manual", versus Auto Exposure Mode. In Manual Mode, (as in Aperture Priority Mode), the amount of change the camera is willing to make to your settings, appears to be related to a preset number of internal steps, with the number of steps dependent on both Aperture and Zoom Settings, before it gives an EV Warning for Over or Under Exposure conditions.... The type (shutter speed only for wide angle, shutter and aperture for zoom) and amount (number of internal "steps" it takes to increase/decrease shutter speed and increase or decrease aperture), is dependent on the amount of zoom you are using for the current shot.

They will - fully open in Av mode, and with any aperture in manual mode - after you allow the Ds through the custom settings menu to use aperture settings different then "A". To choose correct exposure with such a lens in manual mode you can use the AE-button - it stops down the aperture, reads the EV and sets the shutter speed according to the chosen aperture.