Trou
b
l
e
shootin
g
4-
3
4
Sa
msun
g
El
ec
troni
c
s
4-4-6 Internal Communication error of the Outdoor Unit C-Box
Out
d
oor unit
d
ispl
a
y
- All
b
o
a
r
d
s o
f
out
d
oor unit
a
r
e
not
c
ommuni
ca
tin
g
In
d
oorunit
d
ispl
a
y
Du
c
t, C
a
ss
e
tt
e
(1/
2
W
a
y),Consol
e
, C
e
lin
g
C
a
ss
e
tt
e
(4/Mini4 W
a
y)
W
a
ll-mount
ed
(N
e
oFort
e
)
Op
e
r
a
tion
D
ef
rost
Tim
e
r
F
a
n
Filt
e
r/MPI Op
e
r
a
tion
D
ef
rost
Tim
e
r
Filt
e
r
Op
e
r
a
tion
Tim
e
r
Tur
b
o
×
×
◑
◑
×
×
◑
◑
×
×
◑
◑
※ ● :
ON
◑ :
Fl
a
sh
× :
OFF
Ju
dg
m
e
nt M
e
tho
d
∙ Communi
ca
tion
e
rror
be
tw
ee
n th
e
C-Box PCB
C
a
us
e
o
f
pro
b
l
e
m
∙ Communi
ca
tion wir
e
insi
de
th
e
C-Box is un
c
onn
ec
t
ed
∙ M
a
in PCB
defec
tiv
e
1. How
to
c
h
ec
k
R
e
pl
ace
M
a
in PCB
R
e
st
a
rt op
e
r
a
tion
af
t
e
r
c
onn
ec
tin
g
th
e
Inv
e
rt
e
r
PCB
2
CN
3
1(wh
e
n th
e
Comp.
a
ppli
ed
on
e
:
Inv
e
rt
e
r PCB1)
c
onn
ec
tor. (Ch
ec
k th
e
3
, 4 Pin short)
*
Se
rvi
ce
af
t
e
r turn o
ff
th
e
M
a
in Pow
e
r.
No
Y
e
s
Is th
e
jump
e
r
c
onn
ec
tor
c
onn
ec
t
ed
to
CN
3
1 o
f
Inv
e
rt
e
r PCB
2
(wh
e
n th
e
Comp.
a
ppli
ed
on
e
: Inv
e
rt
e
r PCB1)?
R
e
st
a
rt op
e
r
a
tion
af
t
e
r
c
h
ec
kin
g
th
e
Inv
e
rt
e
r
PCB
2
CN
3
1
a
n
d
PCB
2
CN
32
Communi
ca
tion
wir
e
/Conn
ec
tor.(
3
, 4 Pin
S
hort)
*
Se
rvi
ce
af
t
e
r turn o
ff
th
e
M
a
in Pow
e
r.
No
Y
e
s
Y
e
s
Is Inv
e
rt
e
r PCB1 CN
32
a
n
d
Inv
e
rt
e
r PCB
2
CN
3
1
c
onn
ec
tor
acc
ur
a
t
e
ly
c
onn
ec
t
ed
?
1) Ch
ec
k th
e
Inv
e
rt
e
r PCB1 CN
32
, CN91
a
n
d
F
a
n PCB CN1
2
Communi
ca
tion wir
e
/
Conn
ec
tor.
2
) R
e
st
a
rt op
e
r
a
tion
af
t
e
r
c
onn
ec
tin
g
th
e
Hu
b
PCB CN97
a
n
d
F
a
n PCB CN1
3
c
onn
ec
tor.
*
Se
rvi
ce
af
t
e
r turn o
ff
th
e
M
a
in Pow
e
r.
1) Ch
ec
k th
e
M
a
in PCB : M
a
in PCB TX
c
ir
c
uit
insp
ec
tion
2
) Ch
ec
k th
e
Hu
b
PCB : Hu
b
PCB TX
c
ir
c
uit
insp
ec
tion
*
Se
rvi
ce
af
t
e
r turn o
ff
th
e
M
a
in Pow
e
r.
No
No
Y
e
s
Is Inv
e
rt
e
r
PCB1 CN
32
a
n
d
F
a
n PCB CN1
2
c
onn
ec
tor
acc
ur
a
t
e
ly
c
onn
ec
t
ed
?
Do
e
s FAN PCB LD
22
/LD
32
(LED)
b
link?
Two Comp.
a
ppli
ed
to th
e
mo
de
l
Содержание AM072FXVAFH series
Страница 214: ...Samsung Electronics 5 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 5 PCB Diagram and Parts List 5 1 ASS Y PCB MAIN...
Страница 219: ...5 6 Samsung Electronics 5 2 ASS YPCBMAIN HUB AC 1 2 3 4 5 6 7 8 9 10 11 12...
Страница 221: ...PCB Diagram and Parts List 5 8 Samsung Electronics ASS YPCBMAIN HUB cont DC 1 1 2 3 4 5 6 7 8 9 10 11...
Страница 223: ...5 10 Samsung Electronics 4 2 3 5 8 9 7 1 6 5 3 ASSY PCB INVERTER...
Страница 225: ...5 12 Samsung Electronics ASS Y PCB INVERTER cont 4 8 10 9 7 6 11 12 13 1 2 3 5...
Страница 229: ...5 16 Samsung Electronics 5 5 ASS YPCBFAN Model 1 FANchassis 1 5 2 6 3 4...
Страница 231: ...5 18 Samsung Electronics ASS YPCBFAN cont Model 2 FAN chassis 1 7 2 8 3 4 5 9 6...
Страница 244: ...Wiring Diagram 6 15 Samsung Electronics Wiring Diagram Samsung Electronics 6 16 6 8 AM216KXVGJ6...
Страница 260: ...Samsung Electronics 7 15 7 19 AM038KXWD66 7 20 AM048 055KXWD66...
Страница 274: ...Samsung Electronics 8 13 8 3 How to check the view mode using a tact switch AM6666XV666 rX rY rZ r A type B type...
