TM 5-6675-318-14
Table 7-8. TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7.
CALCULATOR DISPLAY LOCKS UP OR DOES NOT APPEAR.
Step 1. Press
key and hold for a moment. Check to see if display
r e t u r n s.
(a) If display returns, calculator was running long program, hung
in loop or waiting for card to be inserted. Correct key
sequence or program just entered.
( b ) I f d i s p l a y d o e s n o t r e t u r n , p r o c e e d t o s t e p 2 .
Step 2.
P r e s s k e y a n d h o l d m o m e n t a r i l y . C h e c k t o s e e i f d i s p l ay
r e t u r n s.
(a) If display returns, processing was in Master Library module,
hung in loop or was running a long program. Correct key
sequence or program just entered.
( b ) I f d i s p l a y d o e s n o t r e t u r n , p r o c e e d t o s t e p 3 .
Step 3.
P r e s s c a l c u l a t o r p o w e r s w i t c h o f f , t h e n o n , a n d p r e s s k e y.
Check to see if display appears.
( a ) I f d i s p l a y d o e s n o t a p p e a r , c l e a n p r i n t e r a n d c a l c u l a t or
mounting contacts.
( b ) I f d i s p l a y s t i l l d o e s n o t a p p e a r , p r o c e e d t o s t e p 4.
Step 4.
Remove calculator from printer. Insert battery pack and check
calculator operation.
8. DISPLAY FLASHES WHILE PERFORMING KEYBOARD OPERATIONS.
Check that proper key sequence was used.
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