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
Summary of Contents for AM072FXVAFH series
Page 219: ...5 6 Samsung Electronics 5 2 ASS YPCBMAIN HUB AC 1 2 3 4 5 6 7 8 9 10 11 12...
Page 223: ...5 10 Samsung Electronics 4 2 3 5 8 9 7 1 6 5 3 ASSY PCB INVERTER...
Page 225: ...5 12 Samsung Electronics ASS Y PCB INVERTER cont 4 8 10 9 7 6 11 12 13 1 2 3 5...
Page 229: ...5 16 Samsung Electronics 5 5 ASS YPCBFAN Model 1 FANchassis 1 5 2 6 3 4...
Page 231: ...5 18 Samsung Electronics ASS YPCBFAN cont Model 2 FAN chassis 1 7 2 8 3 4 5 9 6...
Page 260: ...Samsung Electronics 7 15 7 19 AM038KXWD66 7 20 AM048 055KXWD66...
