Samsung AG042KSVANH, Service Manual

Page: 61 / 142

57
4-3-17. EVI IN temperature sensor error (Open / Short)
1. Insp
ec tion M e tho d
Inv e rt e r / Hy d ro c ontrol p a rt d ispl a y
Ju dg m e nt M e tho d R efe r to th e insp ec tion m e tho d be low.
C a us e o f pro b l e m Dis c onn ec tion or b r ea k d own o f r e l e v a nt s e nsor.
Di d th e c onn ec tor f or th e EVI In
T e mp e r a tur e s e nsor b r ea k a w a y f rom
th e PCB?
Di d th e r e sist a n ce v a lu e
si g ni f i ca ntly str a y f rom th e f ollowin g
t e mp e r a tur e t ab l e ?
Se p a r a t e th e c onn ec tor o f th e Out d oor EVI In
T e mp e r a tur e s e nsor f rom th e PCB a n d m ea sur e
th e r e sist a n ce v a lu e be tw ee n th e 2 t e rmin a ls.
R e st a rt op e r a tion af t e r r e pl ace th e PCB
R e st a rt op e r a tion af t e r c onn ec tin g
th e c onn ec tor to PCB
R e pl ace this p a rt a s it is th e defec tiv e o f th e
Out d oor EVI In T e mp e r a tur e s e nsor its e l f .
No
No
Y e s
Y e s
T e mp e r a tur e (°C)
70
60
50
40
3 0
2 0
10
0
-10
R e sist a n ce (KΩ)
2 . 2
3 .0
4. 2
5.8
8.
3
1 2 .1
18.0
2 7. 3
4 3 .0
R e sist a n ce v a lu e m ea sur e p a rt
EVI-IN
EVI-IN