Samsung AM072FXVAFH series, Руководство по обслуживанию

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Trou b l e shootin g
Sa msun g El ec troni c s 4- 23
Out d oor unit d ispl a y M a in PCB h a s no pow e r ph e nom e non (7-s eg d o e s not b link)
Ju dg m e nt M e tho d W a t e r Hu b PCB pow e r a n d c onn ec tion wir e to de t ec t.
C a us e o f pro b l e m
1) W a t e r Hu b PCB c onn ec tor wir e defec ts a n d th e c onn ec tion is not.
2 ) M a in PCB defec tiv e .
3 ) Hi g h pr e ssur e swit c h op e r a tion
4) W a t e r Hu b PCB defec tiv e .
1. How to c h ec k
R e pl ace M a in PCB
Ch ec k th e c onn ec tion st a tus o f EMI PCB.
Ch ec k th e short c ir c uit o f EMI PCB Fus e .
R ef ri ge r a nt ov e r c h a r ge ?
Hi g h pr e ssur e swit c h is defec tiv e .
No
No
Y e s
Y e s
Y e s
Is W a t e r Hu b PCB CN10 2 c onn ec t ed b y AC 22 0V?
Is hi g h pr e ssur e swit c h norm a l?
Ch ec k th e M a in PCB a n d W a t e r Hu b
PCB pow e r wir e .
No
Y e s
W e r e M a in PCB CN101 a n d W a t e r Hu b PCB
CN10 2 c onn ec t ed c orr ec tly?
Pow e r On
غ
AM038/048/055KXWD
✳✳
4-4-2 Main PCB has no power phenomenon