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