Greetings all. Has anyone ever replaced the memory backup battery in a Prophet
V? I'd like to know (before I go in) if it's a hassle to replace, and what type
of battery is required.
Thanks in advance
Steve La Cerra

Hi Steve,

you'll need to desolder the existing battery and solder in the new one.
Sequential rate it at 2.9 volts, but a 3 volt Lithium type will do just
fine.
I can't remember the size but I think it might be 2/3AA, but take a look and
it should be printed on the battery itself. Note that this is not a
rechargeable battery as often found in backup circuits so don't get a Nicad
or Nickel metal hydride.

Removing the battery loses all your programs so back up to cassette first.

Gareth.






"Northamusi" wrote in message
...
Greetings all. Has anyone ever replaced the memory backup battery in a
Prophet
V? I'd like to know (before I go in) if it's a hassle to replace, and what
type
of battery is required.
Thanks in advance
Steve La Cerra

In article ,
(Northamusi) wrote:

Has anyone ever replaced the memory backup battery in a Prophet
V? I'd like to know (before I go in) if it's a hassle to replace, and what type
of battery is required.

Yes. A ten year battery life seemed a long time when the Prophet came out.
It used a 2.9V Lithium battery with wire ends. Any battery intended for
memory backup would do and it would not hurt if you used a 3.6V type. If
you are smart you would wire in a battery socket to save resoldering next
time and save damaging the pcb.
If you use it regularly a 1 Farad backup capacitor could be used instead,
then you'll never have to do it again, but you will have to reload the
patches if you allow it to discharge. The diode in series with the battery
anode will need removing and replacing with a link.