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If you're encountering a memory error, it is often caused by the battery pack. Battery packs included with the DS-4000 are rechargeable battery packs. This problem is likely to happen on the DS-4000 when a NEW battery pack is being used. The battery pack out of the box does not hold enough charge to power up the recorder through its initial start-up procedure.
1. Please turn off the recorder.
2. Remove the battery pack and memory card for 20 seconds.
3. Install the memory card in the card slot.
4. Install new AAA batteries before you turn ON the DS-4000.
5. Your battery pack may also not be fully charged. All new battery packs must be fully charged from 2.5 to 3 hours before first time use.
6. For the first week to 10 days of use, it is recommended to recharge the battery pack as often as possible. This will exercise it and improve its charge-hold capacity.
You should always remove the batteries if the unit will not be used for the next 24 hrs.Placing the unit in the hold position merely prevents the unit from doing anything except for keeping it in the mode its in while in the hold position.this is handy to keep it from being accidently turned off or stopped.the recorder maintains data such as time and date through an internal clock.this clock must be powered or you would loose your time and date and other settings.
I am having the same problem with my Zoom-H2. I have 2 2650 mah rechargeables, and the draw is such that 20-30 minutes of record &/or playback kills the batteries. Last night I just turned the power on and did nothing. 5 hours later the batteries were dead...
This isn't a solution. It is a reaffirmation that you aren't crazy!
If you have ever used 'standard' or 'heavy duty' batteries in your unit, you may need to clean battery contacts as those types can be very corrosive and leave a non-conducting film behind.
A standard pencil eraser is normally enough abrasion to remove any deposits.
Any time an electronic device lockup there is two main reasons. The first is a data error. A data error happens when incorrect digital information enter certain IC chips, and cause the chip to lock up. This is sometimes called system busy. Similar to when a computer freezes up due to corrupt software or a computer virus. To fix you remove all power to the IC chips. Removing the batteries is not enough, due to the fact that circuit boards have components on them that hold voltage. Additional batteries, coils, capacitors. You have to remove the covers and take the main digital board out. Check to make sure there is no other battery on the board. Some boards have an additional battery source for storing date and time and other info. remove that battery. Either short all capacitors and coils. or let them dissipate, sit for a day of two . Install board back in machine this should clear any system busy type problems. If the problem remains, the digital IC chip or chips are bad and have to be replaced. So boards may have a way of reset the circuits. A technical manual or a call to tech support is required.