A great copy of the manual, and the only one I could find anywhere on the net! The circuit diagrams are easily readable, all component values marked and easy to see. A highly appreciated download!
Text excerpt from page 28 (click to view)
Battery Power
� Charging the rechargeable battery
When the rechargeable battery is used for the first time or when you want to use it after a long period of disuse, be sure to charge it fully.
Useful Features
-Battery Power-
1 2 3
Insert the rechargeable battery.
A rechargeable battery other than the one supplied or the optional one (AD-N70BT) cannot be charged.
Plug the AC adaptor into the AC outlet, and then insert the plug on the other end into the DC IN 5V jack. Press the MODE/CHRG button.
" " will flash, and battery will begin charging.
z After the rechargeable battery is charged or used, it will get slightly warm. This is normal. z When the portable MD is turned on or operating, the battery will not be charged.