Casio CASSIOPEIA A-20 Service Manual & Parts List page 11

Important
• Should the display lock up or go blank at this time, first perform the full reset (page 12). If this does not
correct the problem, remove the main batteries from the CASSIOPEIA and then remove the back-up
battery. Wait for about five minutes, and then perform this procedure again, starting from step 1. Be
sure that the positive (+) and negative (–) poles of the batteries are facing correctly when you reload
them into the CASSIOPEIA.
• If the message "A problem with memory contents has been found, and memory must be initialized..."
appears, perform the full reset operation described on page 12.
• If the images on the display appear dim, use the procedure on page 6 to adjust the contrast.
• Further information on the above procedures can be found in the H/PC Companion manual in
the section describing system set up.
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