The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
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Text excerpt from page 34 (click to view)
Change text in this variable definition to document title.
5
Slide the lever toward the front of the notebook to lock the weight saver. See also �Using the Weight Saver� for more information.
Using weight saver for second battery cover
Battery pack
Weight saver
To charge the second battery pack
Keep the battery pack in the notebook while it is connected to AC power. The battery automatically charges as long as the notebook is connected to AC power and turned on. The battery indicator flashes while the battery is charging. To charge the battery pack 1 2 Connect the AC adapter to the notebook. Insert the battery pack. The notebook automatically charges the battery. The battery indicator flashes in a double-blink pattern as the battery charges.
