IBM RT PC Problem Determination Manual page 54

Step 20. T w o - D i g i t Di s p l a y
2-26 Problem Determination Guide
Look at the two-digit display.
IS TH E T W O -D IG IT D IS P L A Y B L IN K IN G ?
YES Go to "Step 80. Blinking Two-Digit Display"
page 249.
CONTINUE to next page.
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