Trou
b
l
e
shootin
g
4-94
S
a
msun
g
El
e
c
troni
c
s
4-4-45 Fan I
PM
Overheat error
Out
d
oor unit
d
ispl
a
y
(FAN1 PCB)
(FAN
2
PCB)
Ju
d
g
m
e
nt M
e
tho
d
∙ IPM int
e
rn
a
l t
e
mp
e
r
a
tur
e
mor
e
th
a
n 85°C (E455, E
3
55)
C
a
us
e
o
f
pro
b
l
e
m
∙ H
ea
t sink
a
n
d
IPM
a
ss
e
m
b
ly
de
f
e
c
tiv
e
.
∙ D
e
f
e
c
tiv
e
h
ea
t sink
c
oolin
g
Pow
e
r O
ff
Y
e
s
Di
d
c
h
e
c
k th
e
f
or
e
i
g
n o
b
j
e
c
ts
b
e
tw
ee
n th
e
h
ea
t sink pin?
R
e
mov
e
f
or
e
i
g
n o
b
j
e
c
ts
*Col
d
h
ea
t sink
a
ss
e
m
b
ly
de
f
e
c
t o
cc
urs.
No
Y
e
s
Is th
e
b
olt o
f
th
e
h
ea
t sink
f
ully ti
g
ht
e
n
ed
?
Ti
g
ht
e
n Bolt
No
Y
e
s
Di
d
c
h
e
c
k th
e
f
or
e
i
g
n o
b
j
e
c
ts
b
e
tw
ee
n th
e
h
ea
t sink
a
n
d
IPM?
No
1. How to
c
h
e
c
k
R
e
pl
a
c
e
f
a
n PCB
R
e
mov
e
f
or
e
i
g
n o
b
j
e
c
ts
a
n
d
a
pply th
e
h
ea
t sink
g
r
ea
s
e
.
An
d
th
e
n r
ea
ss
e
m
b
ly
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...
