Alesis Quadraverb Q2. When I turn on Alesis Q2 the programs 1-100 preset are working but when I turn on programs 200-300 user It does not work. There is only "bad program" characters on display.

The parts that control the volume and have the volume work are broken then and should be replaced.

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

Those units are both made to go in the effects loop of an amplifier, you would want to hook your effects send to the input of one unit, then the output of that to the input of the second unit, and the final output into the effects return of your amplifier

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

SOFT RESET- HOLD PROGRAM AND COMPARE AND POWER ON. ( SETS GLOBAL TO DEFAULT, CLEARS EDIT BUFFER, LEAVES USER MEMORY INTACT).
HARD RESET- HOLD "PROGRAM", "COMPARE" AND "-BLOCK" AND POWER ON. (SETS ALL FUNCTIONS TO DEFAULT AND CLEARS USER MEMORY).

there may be maybe 2 a causes like it has a cut board or just the 7 segment fails!and need to replace a new one 7 segment

This sounds like a power supply problem. Check the voltages... especially the 5 volts.

Many people have had this problem WHEN they substitued a replacement power adapter.

The CORRECT adapter MUST supply 9 volts AC, NOT DC at 830 ma or more.

The AC is converted inside the SR-16 to both + and - power to run the internal circuits. IF you have connected a 9 v DC adapter, it will NOT have damaged anything, just get the CORRECT adapter and all will be well.

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.