TM 5-6675-319-14
Table 9-5. DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7.
PRINTER WORKS IN ALL MODES EXCEPT AUTOMATIC. PRINTS ARE OVEREXPOSED IN
AUTOMATIC SWEEP AT LOW RATE - Cont
Step 2.
Check operation of PMT.
( a ) I f o p e r a t i o n i s c o r r e c t , p r o c e e d t o s t e p 3.
(b) If operation is incorrect, replace PMT (paragraph 9-20.20).
Step 3.
Check output of -1 kV power supply.
( a ) I f o u t p u t i s c o r r e c t , p r o c e e d t o s t e p 4 .
( b ) I f o u t p u t i s i n c o r r e c t , r e p l a ce -1 kV power supply (paragraph
9 - 2 0 . 1 4 ) .
Step 4.
Check output of printed circuit card 3C2.
I f o u t p u t i s i n c o r r e c t , r e p l a c e p r i n t e d c i r c u i t c a r d ( p a r a g r a p h
9 - 2 0 . 2 1 ).
8 .
PRINTER WORKS NORMALLY EXCEPT UNABLE TO VARY LENGTH OF HORIZONTAL SWEEP.
Step 1.
Check output of raster edge card 3CC-1.
( a ) I f o u t p u t i s c o r r e c t , p r o c e e d t o s t e p 2 .
( b ) I f o u t p u t i s i n c o r r e c t , r e p l a c e p r i n t e d c i r c u i t c a rd
(paragraph 9-20.21).
Step 2.
Check continuity of raster edge control potentiometer .
If not present, replace raster edge control potentiometer
(paragraph 9-20. 13) .
9-117
