It wont play thru my amp only headphones and no demos or preset patterns

Power up while holding play-erase. BUT...when performing a re-initialization, this will erase all existing patterns, songs, and drum assignments. This will not erase the factory preset patterns or kits.

http://community.alesis.com/alesis/topics/sr-16-factory-default-reset-question

Ensure headphones are connected to the correct socket and adjust volume accordingly. If this still doesn't work, you have a faulty item

According to the Alesis SR16 Frequently Asked Question section: Power On while holding down Erase and Play. http://alesis.com/sr16

A number if things can be wrong with it, from the audil preamp to the the audio amplifier. Even as simple as a bad volume control. Does the actual noise change patterns when you move the volume?

Well friend,
According to page 24 of the manual here http://support.casio.com/pdf/008/ap_45_e.pdf
It says
Demo tunes
While holding down the MUSIC LIBRARY button,
press the PLAY/STOP button
.....and try to play a specific demo tune ........
After playback starts, press the tone button that
corresponds to the tune you want to play.from the list.

ALSO in the Troubleshooting section page 35 For DEMO tunes UNPLUG HEADPHONES

If it doesn't work, then you need to get a Technician to look at it.

Hi, Could be a lot of different things.

Does it play through headphones?
If so this implies an amplifier issue.
Does it play when you press the demo button - if so it could be a keyboard issue.

Carry out a factory reset by holding down highest note whilst turning on. Watch screen does it report anything?

Let me know what it says and I will try and help.

A demo on YouTube shows the owner pressing one of the buttons on the left side to select possibly a bank as well as the start.. I could NOT find a manual online to download.

Hi.

The SR-16 has 50 preset patterns that are built in, I do not think they can be deleted, if there are no patterns the unit may be defective, even if patterns can be reinstalled using an rmidi file or re-flashing the unit.

To reset an Alesis drum machine you have to hold down both Play and Erase buttons while you power on the machine at the same time.

If that does not work, the presets are held into an rmidi file , the Rmidi file is not available for download. I think it can be purchased contacting Alesis or Rmidi.

I quote from Alesis Rmidi page:

"A rMidi Import/Export File named 'Sr16PresetKits.xml' containing the Sr16 Preset Kits has been installed within the folder named 'Sr16' within the directory in which you installed the rMidi FrameWork software. You can Import these Kits into the rMidi Drums Control if you wish. "


Check if you have the file in the folder.

If not the Sr16 will allows you to export your User Drum patterns, but I do not think you can export factory patterns.

Okay, maybe this is rude, but TOTALLY ignore Musicaldude's solution, if you haven't already found out the ugly way. Boosting the signal that goes into the KP will just make the input LED light up red and you'll hear digital clipping [gross] and eventually hit a ceiling of all-crappy-staticy-noise and no real guitar left. Having it in the FX loop, and the Headphone-out workaround are smart moves already, except the Headphone out adds noticeable noise/hum vs the usual outs. But to help close the gap between your guitar's volume and the miniKP's internal synths (and program 63 and 65's feedback noizes, which build up even louder than the synths) unplug one of the RCA plugs from the KP's OUTput, pick one, left or right, whichever. You'll notice this gives you a guitar volume boost. BUT its still not enough...the synths and 63 and 65's feedback are still speaker-blowingly loud. Check the manual, it says you can adjust the wet/dry volume by holding down Tempo and Preset A together, then turning the knob and picking 1 thru 99. Make sure you're on the synth setting you want to use already. Do this thing. Play the synth with your finger, while you lower the number with that knob. Stay around 50 if you've got the one RCA plug dangling, around 20 if both are in. Whatever you think matches your usual playing volume. When its where you like it, hold the A or B button (wherever you want to save this) down and click Hold, this will save it onto that preset button. Now from now on, NEVER use 63, 65, or the synths if you're on whatever preset you DIDN'T just save. i.e. If you chose preset B, from now on you can just tap preset B and it remembers your volume adjustment from before, voila, normal-volume touchpad synth. But go back to preset A for every other effect, or you'll barely be able to hear the FX. KORG should've given us more preset buttons to save onto. Godspeed. I've never seen this site before, but I have this pedal, and experienced the same b.s. myself. Now I'm down to one preset button and quick knob-turning. Whee.