Samsung AM160FNBFEB/EU, Руководство по обслуживанию

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T ro u b l eshootin g
S a m s u n g El e c troni c s 4-119
4-4-76 O v er v o l ta g e / L o w v o l ta g e error
Ou tdoor u nit disp l a y
(I N VE R TE R 1 P CB )
(I N VE R TE R 2 P CB )
Ju d g m ent Method
∙ N - phase w irin g error and E M I Fu se short .
∙ D C-L in k Ov er v o l ta g e / L o w v o l ta g e o cc u rs .
C a u se o f pro b l e m
∙ C he ck the inp u t w irin g
∙ E M I Fu se short
Po w er O ff
Y es
Y es
3 80V is the v o l ta g e
b et w een ter m ina l b l o ck s
R , S, T w ire ?
Po w er R , S, T, N w ire v o l ta g e c he ck and restart it .
R ep l a c e I n v erter P CB and then restart it .
* C he ck the 3 - phase sensin g c ir c u it part .
R ep l a c e Fu se , i f the re c ti f ier diode o f
the in v erter P CB is nor m a l .
No
No
Did the E M I P CB Fu se is short ?
1 . C a u se o f pro b l e m