Trou
b
l
e
shootin
g
S
a
msun
g
El
e
c
troni
c
s
4-10
3
4-4-48 Overvoltage / Low voltage error
Out
d
oor unit
d
ispl
a
y
(INVERTER1 PCB)
(INVERTER
2
PCB)
Ju
d
g
m
e
nt M
e
tho
d
∙ Input wirin
g
e
rror EMI Fus
e
op
e
n.
∙ DC-Link Ov
e
rvolt
a
g
e
/ Low volt
a
g
e
o
cc
urs.
C
a
us
e
o
f
pro
b
l
e
m
∙ Ch
e
c
k th
e
input wirin
g
∙ EMI Fus
e
OPEN
1. How to
c
h
e
c
k
Pow
e
r C
a
b
l
e
r
e
-
c
onn
e
c
tion
No
Y
e
s
Is Pow
e
r
c
onn
e
c
tion
a
cc
ur
a
t
e
ly
c
on
e
c
t
ed
Pow
e
r O
ff
Ch
e
c
k th
e
c
onn
e
c
tor
c
onn
e
c
tion
No
Y
e
s
Is EMI PCB R,
S
,T Wir
e
a
n
d
T
e
rmin
a
l-
b
lo
c
k
c
onn
e
c
tor
a
cc
ur
a
t
e
ly
c
onn
e
c
t
ed
?
No
Y
e
s
Di
d
th
e
Fus
e
is op
e
n
No
Y
e
s
Is R
ea
c
tor
a
cc
ur
a
t
e
ly
c
onn
e
c
t
ed
Ch
e
c
k th
e
R
ea
c
tor
c
onn
e
c
tion
No
Y
e
s
Is Inv
e
rt
e
r PCB R,
S
,T Wir
e
a
n
d
EMI PCB CN
2
1
c
onn
e
c
tor
a
cc
ur
a
t
e
ly
c
onn
e
c
t
ed
?
Pow
e
r O
ff
a
n
d
th
e
n
r
e
-
c
onn
e
c
tion
R
e
pl
a
c
e
Inv
e
rt
e
r PCB
EMI PCB R,
S
,T Wir
e
a
n
d
T
e
rmin
a
l-
b
lo
c
k
c
onn
e
c
tor
Typ
e
o
f
Pow
e
r
S
our
c
e
AC Input Volt
a
g
e
S
t
a
n
da
r
d
AC Volt
a
g
e
(V
a
c
)
S
t
a
n
da
r
d
DC Volt
a
g
e
(V
d
c
)
Min. M
a
x. Min. M
a
x.
F
2
08~
23
0V 177
2
65
2
50
3
74
J 460V
3
91
55
2
55
3
781
R
e
pl
a
c
e
Fus
e
or EMI PCB
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...
