Alesis SR-16 User Manual - Page 70
Alesis Sr-16 Troubleshooting Chart - 9 volt
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ALESIS SR-16 TROUBLESHOOTING CHART No display. Symptom Buttons have no effect. LCD reads "Software Error". LCD shows nonsense, all lights on, or unit has lost all memory. No sound. Sound is distorted. Drums don't "pan" in stereo field. One or more pads not working. Drums don't play back as recorded. Some beats seem shifted. Won't display certain drum beats in step edit mode. Pads not touch sensitive. Other sequencers won't "slave" to the SR-16. What's Wrong What To Do Power switch not on. Power supply not connected. Bad power supply. Improper supply. Push power switch in. Check Power supply connections. Try known good power supply. Try known good power supply. Power supply must be 912V A.C. A 9 volt D.C. supply won't work, but it won't harm the unit. Software values are out of range (unit has "crashed"). As with all computing devices, crashes can be caused by any loss of power while the unit is NOT sitting idle. Machine is in idle when in either the Pattern or Song select pages (i.e., not playing or recording). Crashes can also be caused by errors during tape loads or corrupted MIDI sys ex loads. It is recommended that data be saved and verified frequently to prevent losses of large amounts of data. Reinitialize software. Turn power on while holding down "ERASE" and PLAY". Volume knob at minimum. Bad audio cable(s). Pads set to wrong outputs. Miv volume too low. Turn knob clockwise. Replace with known good cable(s). Check Drum Set setup for proper output selection. Check Drum Set and increase mix volumes if necessary. Mix volume(s) set too loud. Check Drum Set and decrease mix volume(s) if necessary. SR-16 output level is too high and is overdriving receiver input. Reduce overall volume or reduce drum set mix levels. Drum set panning parameters are set incorrectly. Bad audio cable(s). Effects processors or mixing consoles being used in conjunction with the SR-16 are corrupting the stereo mix. Set Drum Set panning as per section 4.4. Check cables by replacing with known good cables. Isolate and correct the problem. Improper output selection. Bad audio cable(s). Pad's mix level is set to 00. Panning not correct. Check Drum Set parameters for correct output selection. Check cables by replacing with known good cables. Check Drum Set parameters for correct mix level. Check Drum Set parameters for useful pan position. Quantize values not set correctly. Check quantize and swing values in RECORD SETUP. " Pad dynamics set to fixed volume. SR-16 "Clock Out" turned off. " Check pad velocity parameters in RECORD SETUP. Turn the SR-16's "Clock Out" on.