How to change internal battery in alesis d4 drum module

SOURCE: alesis dm5 drum module keeps freezing

Not a lot of ideas for you, but IF it will restart right away it is probably at the end of the particular song memory you have selected. In other words, you may be playing a song performance rather than just a plain rhythm. A song runs for the number of measures it is programmed for, often around the two minutes you mention.

If the whole unit freezes and all panel controls are dead, then I want you to actually freeze the unit in your freezer and quickly try it and measure the time it continues to run. This is to determine if there is a heat related problem. If it runs longer, then you can isolate the problem with circuit cooler.

SOURCE: Ihave an Alesis D4 drum sampler.I have not used in

Some of the Alesis products have a setup and data memory backed up by a battery. It is POSSIBLE that your battery expired and took the sound memory with it.

Investigate if you have a battery in yours (buried in the guts) and check the voltage. It should be above about 3 volts.

If it is below that, replace the battery and find another unit to clone the data from.

SOURCE: My Alesis D4 Drum Module shows squares in the

Open the unit and see if it has a battery that holds the settings. Check the voltage... it should be around 3 volts. If less than 2.5 volts replace it.

Verify the INTERNAL regulated power supply as the external you verified with new unit. The external is likely regulated within the D4 and either due to an overload or bad regulator may be below the voltage to run the processor. It is likely 5 volts and anything over 4.85 would be acceptable.