SCP-64 (140-1204) Power Source Faxback Doc. # 6590 USING ANOTHER POWER SOURCE With the proper adapter, you can operate the SCP-64 from an AC outlet or your vehicle's cigarette-lighter socket. Note: Connecting an optional adapter disconnects the internal batteries. USING AC POWER To power the SCP-64 from an AC outlet, you need an AC adapter (not supplied), such as Cat. No. 273-1654. Caution: You must use an adapter that supplies 3 volts DC power and delivers at least 300 milliamps. Its center tip must be set to negative, and its plug must properly fit the SCP-64's DC 3V jack. Using an adapter that does not meet these specifications could damage the SCP-64 or the adapter. 1. Set the adapter's voltage switch to 3V. 2. Attach the black plug to the adapter's cord to read TIP NEG. 3. Insert the plug into the SCP-64's DC 3V jack. 4. Plug the adapter into a standard AC outlet. USING YOUR VEHICLE'S CIGARETTE-LIGHTER SOCKET You can power the SCP-64 from your vehicle's cigarette-lighter socket. This connection requires a DC adapter, such as Cat. No. 270-1560. Cautions: The vehicle must have a 12-volt DC, negative-ground electrical system. To protect the vehicle's electrical system, always plug the adapter into the SCP-64 before you plug it into the cigarette- lighter socket. Always unplug the adapter from the cigarette- lighter socket before you unplug it from the SCP-64. You must use an adapter that supplies 3 volts DC power and delivers at least 300 milliamps. Its center tip must be set to negative, and its plug must properly fit the SCP-64's DC 3V jack. Using an adapter that does not meet these specifications could damage the SCP-64 or the adapter. Follow these steps to power the SCP-64 from your vehicle's cigarette- lighter socket. 1. Set the adapter's voltage switch to 3V. 2. Plug the orange-tipped barrel plug into the adapter's cord with the tip set to negative (-). 3. Insert the barrel plug into the SCP-64's DC 3V jack. 4. Plug the other end of the adapter into the vehicle's cigarette-lighter socket. (LB/all-06/27/94)