It's been a long time I had the switch at the Standby position. *IIRC*, everything goes OFF, and only MOS memory is powered, but there are a few wires on the backplane, where the power leads are soldered, that connect the backup supply pins to the main supply pins. To use the memory battery backup, you must remove these wires, but without a battery and the charger plus a cable to the BA11 power supply, it is useless. - Henk. This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.