nec 48/192 Scroll not working

[mcgriff1985]

I have a customer who has an NEC 48/192. Small system 8 users. Old MIFM U10 card went bad so I sourced a replacement (MIFM U10 with KMM1.0) I replaced the card and the scroll no longer works. I have looked through all the programming and features manuals and looked through all the programming to no avail. It looks just as it did before it just doesnt work. I rebooted the phone system to not avail. The old card just went bad, not a big deal so it was replaced and had worked before. I get caller ID showing up on the phones as they come in, which didnt work before card replacement, but it wont store and wont let me scroll through them. The customer wants the scroll button to be able to call back the person they find in the scroll list. This feature did work before the replacement. Any suggestions on where to check in programming. I have been through everything I can think of. I can verify the scroll is on the phone using the feature and pressing the key, it displays scroll, but after answering several calls there is nothing stored in any of the phones' scrolls.

 

[STLphone tech]

Is it possible this system defaulted? (those CPU batteries have to replace periodically)
Did you confirm the MIF card is assigned along with slot number?
The replacement MIF card might defective.

 

[DoubleDriveLine]

That is an old system. It used to be my bread and butter.
If you still have the old card look at the chips on it. Caller ID Scrolling was controlled by the KMM Chip. You will need to take it off of the old card and put it on the new.