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Scantronic Not Responding After Battery Change

Fastbluecar
in Control Panels (Public)

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  • Author

Could someone point me to a source of this chip? And it's part number?

 

FYI This morning the panel suddenly sprang into life after having refused to accept any commands and showing nothing on the display. It had returned to factory settings. I've reprogrammed it, and it appears to be working fine. Looks like it just wanted a couple of days off!! I think I willtry a new NVM, and ultimately a new panel.
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Waste of time , move with the times , it's been in long enough get something up to date , keypad will fail soon enough to

I would add that it sounds very much to me like you need a new battery, too. Even if it was OK, if it has been drained pancake flat, it may never recover.

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

".... I think I willtry a new NVM,.."  Don't see the point if you've got it up and running, and personally I wouldn't waste my time looking for a replacement chip. Enjoy the panel as is for now, but give serious consideration to Al-yeti's comments viz; new panel.

As I have said before, this is a common and known fault with this panel.

 

It will only be hours / days / weeks before it fails again either in the middle of the night or during a power fail, especially if the battery is knackered.

 

It is likely only the live power on the panel that is currently sustaining the NVM, or as it current is VVM, Very Volatile Memory.

 

At the very minimum a new battery and 24C16/M24C16-WBN6P DIP-8 Serial I²C Bus EEPROM is required.

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

Datafussion, Is this a cradled eeprom on this panel or does he need to get the soldering iron out ?

Cradled

Nothing is foolproof to a sufficiently talented fool.

Thanks Norman,
  • 4 months later...
  • Author

Finally got round to trying a new NVM, however when got the panel apart, it is fitted with a NMC9314BN. Datadiffusion says I needed a M24C16. Are these the same chip?

Should be fine - at your own risk.

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

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