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Upgrade memory chip in at&t 1725 answering machine?

I'd like to upgrade the memory chip in my at&t 1725 answering machine to one
with a larger memory.  it uses a non-volatile chip, but i have not opened the unit
to see which one.  if someone has the schematics and can email them to me, or
just knows what chip it is, then i could try searching the web to see if i can find a replacement.  or, if someone knows that info already, that would be even better.   the current chip holds 24 minutes, and i'd like to up that as much as i can.  newer answering machines hold about 40 minutes, but are so far either much
harder to use, or lose all settings and messages when the power goes out.

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Typically no schematics are ever available for this kind of product as nobody - even the manufacturer - expects to repair them. They are strictly throw-away. But you could open it and try to get the part number from the chip, then search out a suitable larger-capacity replacement. Problem is that almost everything now is surface-mount devices which you probably wouldn't be able to remove and replace without appropriate rework tools. Sad to say, replacement might be the best option.

Posted on Nov 19, 2008

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