Service manual

Troubleshooting
Option Card Problems
If there is a problem using an option card, follow the suggestions below:
Figure 2-9
Option Card Problems
Make sure the option card is properly inserted in its slot.
Check to see if any necessary DIP switches or jumpers on the option card are set
correctly.
Make sure that you used the proper cable to connect the device to the option card
connector.
Switch the system to low speed.
If you still have trouble with the option card and the system is using a memory
manager program such as QEMM-386
TM
or 386MAX
TM
, try removing the program from
memory and rebooting your computer.
Some cards may use a part of the memory address space that conflicts with the
addresses assigned to Video Shadow RAM. Use the SETUP program to disable the
Video Shadow RAM.
Replace the option card.
Epson NX Service Manual
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