Upgrade your Oberheim Xpander to the latest OS and Voice firmware, v1.2 and v1.4
Warning - Chips must be installed in the correct orientation. Installing backwards may damage the chips and your device!
Install Instructions
1. Shut down your unit and disconnect power
2. Carefully open the cover to expose the circuit boards, (see picture)
3. Find the chips shown in the pictures, labeled U5, U6, U7, and U8 on the CPU board and U912 and U914 on the Voice board. These are the chips you need to swap. Be sure to note the orientation of the notch on the chips.
Recommended - Take a picture now, just in case you forget chip orientation!
4. Pull the chips straight out with the chip puller tool ensuring not to bend any pins.
5. Install the new chips in the slots ensuring you have the notches pointing in the same direction. Make sure you don't mix up. Warning - Installing the chips backwards will damage your chip and device!!
Note - You may need to carefully bend the chip legs slightly to align them with the socket holes.
6. Reinstall the cover, power up, and enjoy
