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12-3 PCB Inspection Method
12-3-1 Pre-inspection Notices
1
.
C
h
e
c
k
if
you pulled ou
t th
2.
Do
n
'
t h
old
th
e PCB s
i
de
3.
Do
n
'
t
pull
th
e lead w
i
re bu
4
.
I
n c
ase o
f
ou
t
door PCB d
12-3-2 Inspection Procedure
1
.
C
h
e
c
k
c
o
nn
e
ct
or
c
o
nn
e
cti
2.
T
h
e PCB
i
s
c
omposed o
f th
1
.
I
n
door Ma
in
PCB Par
t
1
.
D
i
splay par
t
: LED lamp, Sw
1
.
Ou
t
door Ma
in
PCB par
1
.
EMI PCB Par
t
: L
in
e
fi
l
t
12-3-3 Indoor Detailed Inspection Procedure
No
Procedure
Plug ou
t
a
n
d pull
th
e PCB
1
ou
t
o
f th
e ele
ct
ro
nic
C
h
e
c
k
th
e PCB
f
u se
.
2
Supply power
.
I
f th
e opera
tin
g lamp
t
w
in
kles a
t thi
s
ti
me,
th
e above 1
)
~
3) h
ave
n
o rela
ti
o
n.
3
Press
th
e ON/OFF bu
4
Press
th
e ON/OFF bu
1
.
FAN Speed [H
i
g
h
]
2.
Co
ntin
uous Opera
Samsu
n
g Ele
ct
ro
nic
s
e AC power plug w
h
e
n
you el
n
o
t i
mpose ex
c
ess
i
ve
f
o r
c
e o
t h
old
th
e w
h
ole
h
ous
in
g
t
i
sassembly,
ch
e
c
k
fi
rs
t th
e
c
omple
o
n
a
n
d peel
in
g o
f
PCB or bro
e
3
par
t
s
.
: MICOM a
n
d surrou
n
d
in
g
ci
r
ci
r
c
u
it
, power
ci
r
c
u
it
o
f
DC1
itch
, Remo
c
o
n
module
t
: MICOM a
n
d surrou
n
d
in
g
er a
n
d No
i
se Capa
cit
or, Var
i
s
Inspection Method
1
)
Is
th
e
f
u se d
i
s
c
o
nn
e
box
.
C
h
e
c
k
i n
g
th
e power vol
1
Is
e DB
1
pu
vol
)
th
7
in
t
2)
Is
th
e vol
t
age be
t
wee
C1
0
4 o
n th
e
2
n
d
s
i
de o
±
5V?
0.
Is
e vol
age be
wee
3)
th
t
t
a
n
d GND o
f
IC19
(
KA
tt
o
n.
C
h
e
c
k
i n
g
th
e power vol
1
)
Is
th
e vol
t
age over AC1
1
) t
erm
in
al #
3
a
n
d #5 o
c
o
nn
e
ct
or
(
CN
72)
?
2)
C
h
e
c
k
th
e vol
t
age o
erm
al blo
k 1 a
d N
t
in
c
n
opera
ti
o
n.
: AC
220
V
tt
o
n.
1
)
Is
th
e vol
t
age over AC1
1
) t
erm
in
al #
3
a
n
d #5 o
ti
o
n
c
o
nn
e
ct
or
(
CN
72)
?
2)
T
h
e
f
a
n
mo
t
or o
f th
e
3)
T
h
e power vol
t
age be
o
f th
e
c
o
nn
e
ct
or
(
CN
i
m
in
a
t
e
th
e PCB or
f
r o
nt
pa
n it t
o el
i
m
in
a
t
e
th
e PCB
.
o
c
o
nn
e
ct
or d
i
s
c
o
nn
e
ct
a
c
o
t
e d
i
s
ch
arge o
f c
o
n
de
n
n
ze
c
oa
tin
g pa
tt
er
n
w
h
e
n
you
c
u
it
, relay, room
f
a
n
mo
t
or dr
2
V a
n
d DC5V, a
n
d buzzer dr
i
ci
r
c
u
it.
IPM a
n
d PFC
ci
r
c
u
it
a
n
t
or
ct
ed?
t
age
.
age AC
V~AC
4
V?
t
200
2
0
n
bo
th t
erm
in
als o
f th
e
f th
e
t
ra
n
s
f
o rmer DC1
2
V
bo
erm
als o
OUT
n
th t
in
f
78
L
0
5
)
DC5V ±
0.
5V?
t
age
.
80
V be
in
g
i
mposed o
n
f th
e
f
a
n
mo
t
or
f
bo
th t
erm
in
als o
f
1
a
er
m
u
e
(
)
ft
3
in
t
80
V be
in
g
i
mposed o
n
f th
e
f
a
n
mo
t
or
in
door u
nit
does
n
'
t
ru
n.
t
wee
n t
erm
in
al #
3
a
n
d #5
72) i
s
0
V
.
n
el
.
nn
e
ct
or
t
o
th
e PCB
.
ser
(
C1
03)
a
ft
er
30
se
c
o
n
ds power o
thin
k
th
e PCB
i
s broke
n.
i
v
in
g
ci
r
c
u
it
a
n
d
c
o
nt
rol
ci
r
c
v
in
g
ci
r
c
u
it.
d
c
o
nt
rol
ci
r
c
u
it.
Cause
•
Over
c
urre
nt
•
I
n
door Fa
n
Mo
t
or S
h
or
t
•
AC Par
t
Pa
tt
er
n
S
h
or
t
o
f th
•
Power Cord
i
s
f
a ul
t
, Fuse ope
Cable W
i
r
in
g, AC Par
t i
s
f
a ul
•
Sw
itchin
g Tra
n
s or Power C
•
Power C
i
r
c
u
it i
s
f
a ul
t
y, Load S
•
Relay
RY
1
Co
l D
s
o
(
7
)
i
i
c
nn
•
Relay
(
RY
7
1
)
Co
nt
a
ct i
s
f
a ul
•
Fa
n
Mo
t
or o
f th
e
in
door
i
•
Fa
n
Mo
t
or Co
nn
e
ct
or
(
CN
•
ASS'Y Ma
in
PCB
i
s
f
a ul
t
y
•
Co
nn
e
cti
o
n i
s
f
a ul
t
y
ff.
u
it
, se
n
sor dr
i
v
in
g
e MAIN PCB
n.
Wro
n
g Power
t
y
.
i
r
c
u
it i
s
f
a ul
t
y
h
or
t
e
o
, IC
5
s
a ul
y
cti
n
0
i
f
t
t
y
s
f
a ul
t
y
72) i
s
f
a ul
t
y
1
2
-
20
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