TCL
Air Conditioner Service Manual
18K 24K
1
0
.3 Connection of ODU PCB
09
K 12K
CN7
(
LEV
)
CN2
(OHT)
CN1
(OPTOAT)
CN3
(OVT)
CN401
(485-COM)
CN409
For
programmed
CN407
For EEPROM
programmed
P2
(CAN-Blue)
P3
(S-Black)
P1
(ACL-Brown)
P00
P01
P5-1
、
P8
(VAL)
Electric reactor
PC
m
o
ni
to
r
P10-3(W)
P10-2(V)
COMP.
(
Bl
u
e
)
(
W
h
ite
)
(
Re
d
)
T
o i
n
d
oor
u
n
it
E
x
pa
ns
io
n v
a
lv
e
Su
ct
io
n T
em
p
se
n
so
r
O
u
t do
or
c
o
il
T
e
m
p
s
ens
o
r
O
u
td
oor
am
b
ien
t T
em
p
sens
o
r
C
O
M
P
. t
o
p
T
em
p
pr
o
te
ct
io
n
E
xhaus
t T
em
p
. sens
o
r
CN12
(
ORQ
)
P13 (L)
P 14 (L
)
P10-1(U)
P9
CN12-2
P11-1
、
P11-2
(HEAT)
wu v
CN12-1
(DC fan motor
feedback)
C
N
L
H
CN410
(OUTFAN)
DRM
3
DRM
2
DR
M
1
DR
M
-C
OM
CN13
CN11
U405
IPM
DN401
rectifier
Q403 IGBT
D412
Fast recovery
diode
31