Samsung AG042KSVANH, Service Manual

Page: 90 / 142

86
4-3-41. Hall IC (Fan) error
Inv e rt e r / Hy d ro c ontrol p a rt d ispl a y
(FAN PCB(FAN1))
(FAN PCB(FAN 2 ))
Ju dg m e nt M e tho d
∙ F a n rot a tion defec tiv e or vi b r a tion a n d nois e o f th e defec tiv e op e r a tion.
∙ H a ll IC th e r e is no si g n a l input.
C a us e o f pro b l e m
∙ Conn ec tion st a tus e rror.
∙ H a ll IC wir e d is c onn ec tion.
∙ D efec tiv e c ir c uit p a rts a n d defec tiv e m a nu fac turin g .
∙ F a n Motor defec tiv e .
1. Insp
ec tion M e tho d
R e pl ace F a n PCB
R e st a rt
Wh e n th e e rror is r e p ea t ed , r e pl ace th e F a n Motor.
En d o f Se rvi ce
No
Y e s
Y e s
Di d th e e rror o cc urs?
Ch ec k th e c onn ec tin g wir e a n d r e st a rt it.
No
Y e s
Conn ec tion wir e
o f HALL IC d i d c on f irm a tion?
(V e ri f y th a t th e wir e f ol ded , or th e c onn ec tion
is de t ac h ed .)
Ch ec k th e c onn ec tin g wir e a n d r e st a rt it.
No
Y e s
HALL IC on th e PCB is c onn ec t ed c orr ec tly?
Pow e r O ff / Pow e r R e st a rt
FAN Motor Connector
Hall-sensor Connector
[FAN PCB]
Hall-sensor Connector