R410A All DC Inverter V5 X Series 50Hz
MCAC-VTSM-2015-10
132 Troubleshooting
1.2 Main PCB parts instructions
E
N
C
1
E
N
C
3
S
1
2
S3
S7
S1
E
N
C
2
S4
S2
S5
S6
E
N
C
4
S
1
0
F
o
rc
e
d
c
o
o
lin
g
b
u
tt
o
n
Q
u
e
ry
b
u
tt
o
n
L
E
D d
ig
it
a
l
tu
b
e
d
is
p
la
y
In
v
e
rt
e
r
d
riv
e
c
h
ip
M
a
in
c
o
n
tr
o
l
c
h
ip
C
o
m
m
u
n
ic
a
tio
n
c
h
ip
D
ia
l
s
wi
tc
h
D
ia
l s
w
it
c
h
D
ia
l
s
wi
tc
h