Hardware & Software Installation Instructions
Lexicon
8
Step A: Installing the Hardware (continued from page 7)
A-12. Install the Software Version 3.0 EPROM at location U3 on the
memory board. Location U3 is identified in Figure V on the
previous page.
The socket’s Pin 1 is near location RA15 on the memory
board. The EPROM’s Pin 1 should face toward the left as
shown in Figure VII (below). Take care to properly align the
EPROM to avoid bending pins. When the EPROM is inserted,
carefully examine each pin to make sure it has been correctly
inserted without bending.
A-13. Reconnect the memory board to the main board.
A-14. Replace the screw that secures the memory board to the MC-12
chassis. This screw is identified with a white arrow in Figure
III on the previous page.
A-15. Place the decoder board and decoder board bracket included
in the upgrade kit on a static-free surface.
A-16. Use a Phillips-Head screwdriver and one M3x6mm screw to
attach the decoder board to the decoder board bracket as
shown at the left in Figure VIII on the next page.
A-17. Connect the decoder board to the expansion connector
labeled J25 on the main board as shown at the center in
Figure VIII on the next page. This connector is identified in
Figure III on the previous page.
A-18. Use a Phillips-Head screwdriver and one M3x6mm screw to
attach the decoder board bracket to the main board option
bracket as shown at the right in Figure VIII on the next page.
A-19. Replace the top cover of the MC-12 by sliding it toward the
front panel.
A-20. Use a 2.5mm Allen hex-head wrench to replace the twelve
2.5mm hex screws that secure the MC-12 top cover. These
screws are identified in Figure II on page 6.
A-21. Reconnect the MC-12 to the electrical outlet and all
associated components.
Incorrect EPROM insertion will cause damage to the
EPROM and might also cause damage to the PCB
assembly.
CAUTION
Figure VII: Aligning EPROM Pins
To Next Page
Loading...
Need help?
General
