Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
This manual covers the main equipment features only. While it also includes the procedure for saving and loading from the now long obsolete memory cards it does not mention the how to operate with the optional floppy drive interface so I am still at a loss about how to use this! Note that there is a separate manual covering the MIDI interface and programming via the keyboard, not included in this download. You will also need to get hold of this if you want to use the MIDI interface properly. Basically there is little difference between this manual and the free to download manual for the similar PR60 model.
Good list of manuals. I found a very rare one and easily get. Should be promptly to download, as we must to wait hours even after confirmed payment.
Text excerpt from page 64 (click to view)
VAIO Notebook User Guide
Using a Second Battery Pack
You can purchase a second rechargeable battery pack. With two battery packs, you can extend the time that you use your computer with battery power. When using two battery packs, the battery pack you insert first charges first. The battery pack you insert second charges when the first battery pack is 85% full. You can monitor which battery pack is charging by observing the battery indicator lights.
To insert a second battery pack
1 2 If another device is in the multipurpose bay, remove the device. See �To remove the DVD-ROM or CD-RW drive� on page 57. Insert the battery pack into the multipurpose bay. If the battery is being used, the battery 2 indicator light turns on.
Inserting Second Battery Pack
Multipurpose bay
Battery pack
3
Attach the weight saver to the computer to stabilize the battery pack. Insert the tab of the weight saver into the hollow of the multipurpose bay slot, and then push the weight saver into the multipurpose bay until it clicks.
