sundance-communications.com/forum Forums TDM Business Telephone Systems Toshiba Telephones & Systems Configuration settings not stored on memory

My system does not restore back to its previous programmed settings everytime I power it off.

It seems like the settings doesn't get stored on the memory. I made sure that the pin switch is set to ON position so that the battery can provide power to the RAM but still the problem exists.

I tried pulling out the batteries and replace it with a new one but I had a hard time removing it as it is too tight. Is it fixed or can it be replaced?

Thanks. Danny

It would be interesting to know what ksu you have. DK16, DK16e, DK40, DK40i, DK280, DK424, DK424i, etc. This information would be on the equipment.

Those are non-removable batteries, if you have pulled out a non-removable battery that is soldered in, that may be a problem.

Can you program one feature, turn it off for 30 seconds and see if the programming stays? The lithium battery could be dead if this is an old (more than ten years) unit.

You are starting programing lines with a [Spkr] and ending with a [Hold]?

I have a DK424.

If I program almost anything and then turn it off, the system goes to its pre-programmed state(No dial tones, totally dead).

I have to do initialization, auto pcb recognition and all sort of programs for the extension and T1 lines to put back everything in working condition.

If battery is soldered to the PCB, how can it be replaced? do you unsolder it or buy a new card?

Yup, I always end programming lines with [SPKR]##[HOLD}. I also do program 91-2 to make sure that data get transferred to working memory. I notice that some programs take time to activate unless I do 91-2.

Thanks again!

The oldest battery on the oldest card I've ever seen still has memory. It is a long life lithium. Have you used a volt meter to read the voltage?

If it is dead, you would need to have a new cell soldered in place.

Have you not hooked up battery backup to the power supplies?

The [On] [Common] [Off] battery switch must have a jumper (electrical connection) between On and Common (in the middle) without that you have no backup.

Give that a check and let us know.

The voltage on the battery should be close to 3V and no less than 2v.

Thanks for the tip.

I haven't tested the battery voltage but I will on Sunday when agent's take their dayoff.

That's the other things I don't have backup batteries. I'll get the required cables first and work on it.

I put on the jumper plug on the battery switch to ON position [On][Commnon].

I'll let you guys know what the voltage reading is after I test it.

Many thanks again!

those batteries can be replaced with a little soldering knowledge. if you need any batteries i can help you in that area.