Specifications

PX-7 Owners Manual 347
Appendix
Installing Sound SIMMs
Installing
Sound SIMMs
PX-7 can be easily expanded to contain up to 128 MB of sound data
(4 SIMMs). The sound SIMM sockets are located inside the unit.
 Open the Unit
1. IMPORTANT: Unplug power from the unit before opening!
2. Carefully turn the unit keypad-side down on a soft, padded surface.The
bottom panel is secured by eight phillips head screws — four along the
rear edge and four along the front edge. Remove the eight screws and
place them where they won’t roll away or get lost.
3. Holding the bottom panel and the top piece together, carefully turn the
entire unit right-side up again.
4. Carefully lift the rear of the top panel, tilting it upward. Do this slowly
so as not to stress the ribbon cables.
5. Continue to open the unit as if you were opening a book, so that the
top piece is resting on the buttons and knobs as shown below. Take care
not to stress or damage the fragile ribbon cables.
The service position for PX-7. The Sound ROM sockets can be seen at lower left

To Remove ROM SIMMs (if necessary):
1. Orient the unit so that the rear panel is facing you. Ground yourself by
touching a grounded object. (Such as the chassis of another piece of
equipment connected to the wall socket with a three-prong power plug.)
2. On each end of the SIMM socket there is a silver or plastic tab. Use a
screwdriver or a ball point pen to squeeze the tabs toward the outside of
the socket while gently nudging the SIMM toward the right side of the
unit. The old SIMM should “hinge” to the right and can now be
removed.