TM 5-6675-321-14
Section III. OPERATOR MAINTENANCE
6-8. LUBRICATION INSTRUCTIONS. This equipment does not require lubrication.
6-9. TROUBLESHOOTING PROCEDURES.
a.
The table lists the common malfunctions which you may find during the opera-
tion or maintenance of the pocket calculator or its components.
You should perform
t h e t e s t s / i n s p e c t i o n s a n d c o r r e c t i v e a c t i o n s i n t h e o r d e r l i s t e d .
b.
This manual cannot list all malfunctions that may occur, nor all tests and
c o r r e c t i v e a c t i o n s .
I f a m a l f u n c t i o n i s n o t l i s t e d o r i s n o t c o r r e c t e d b y l i s t ed
c o r r e c t i v e a c t i o n s,
n o t i f y y o u r s u p e r v i s o r.
T a b l e 6 - 2 . T R O U B L E S H O O T I N G
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
CALCULATOR DISPLAY IS BLANK.
Step 1.
Plug in ac adapter/recharger. Turn calculator on.
(a) If display of zeros comes on, proceed to step 2.
( b ) I f d i s p l a y i s b l a n k , r e p l a c e a d a p t e r / r e c h a r g e r .
Step
(c) If problem remains, replace calculator.
2.
Check for raised decimal point at far left corner of display.
Indicates low power condition.
( a ) I f i n d i c a t o r i s o n , p r o c e e d t o s t e p 3 .
( b ) I f i n d i c a t o r i s o f f , r e c h a r g e b a t t e r y p a c k .
Step 3.
Check to see if contacts are dirty.
(a) Clean contacts on inside of calculator and battery pack with cotton
swab (Item 6, Appendix E) moistened with alcohol (Item 3, Appendix
E ).
(b) Replace battery pack. Open battery pack door. Remove defective
battery pack.
Install new battery pack.
Reinstall battery pack door .
6-35
