Panasonic CS-RE9SKUA, Service Manual

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24
9. Electronic Circuit Diagram
9.1 Indoor Unit
9.1.1 CS-RE9SKUA CS-RE12SKUA
M
GROUNDING TERMINAL
1
W
2 3
BL
EVAPORATOR
AC303
(WHT)
AC306
(BLK)
AC304
(RED)
G301
(GRN)
FUSE301
T3.15A L250V
TEMP. FUSE 102°C (3A)
TO OUTDOOR UNIT
TERMINAL
BOARD
R
Y/G
G
AUTO SW
(SW01)
ELECTRONIC CONTROLLER
(MAIN)
CN–FM (WHT)
MOTOR
5 6 7 1 4
BL
W
B Y R
RECTIFICATION
CIRCUIT
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
70 60 50
Resi stan ce (k Ω)
Te
m
per
at
ur
e (º
C
)
S
ens
or
(T
he
rm
is
to
r)
Ch
ar
ac
te
ris
tic
s
40 30 20 10
-10
0
10
20
30
40
50
0
Pi
pe
T
em
p.
S
ens
or
In
ta
ke
Ai
r Te
mp
. Se
ns
or
1
1
2
2
*R89
5V
5V
1 2 3 4 5 6 7 8 9
10 11 12
432
1
*C49
*C45
*R37
*C44
*C41
*R54
*CN-RMT
WHITE
*CN-DISP
YELLOW
*C47
C3 0.1μ 16V
*R75
5V
5V
REMOTE CONTROLLER
11 10
9 8 7 6 5 4 3 2 1
ELECTRONIC CONTROLLER
(DISPLAY & RECEIVER)
LED201
(GREEN) (ORANGE) (ORANGE) (ORANGE) POWER TIMER POWERFUL QUIET
LED202
1 2 3
Vout
Vcc
GND
GND
G
ND
5
4
R201 470
1/10W 5% 1/10W 5% 1/10W 5% 1/10W 5%
R202 2k
PCB201
IC201
5V_
GND-A
*R203 *R204
*CN-DISP
WHITE
LED204 LED203
MODE
POWERFUL/
QUIET
TEMP
1
2
3
AIR SWING
FAN SPEED
SET
C
HECK
CLOCK
R
ESET
AC
RC
FAN SPEED AIR SWING
AUTO
HEAT COOL
DRY FAN
/
TEMP
OFF/ON
TIMER
SET
CANCEL
ON
OFF
1
2
3
CHE
UP DOWN
LOUVER MOTOR
BR
1 5
R O
M
Y P
CN-STM1 WHITE
1 5 4 3 2
1 2 3 4 5 6 7
16
9
8
15 14 13 12 11 10
IC03
R47 1/2W
68
R46 1/2W
68
GND
VCC
12V
12V
5V
*R63
*C28
6 5 1 2 3 4
C25 1μ 16V
R62 15.0k 1%
C27 1μ 16V
R61 20.0k 1%
*CN-TH
RED
t° t° t°
PIPING TEMP. SENSOR 2 (THERMISTOR) PIPING TEMP. SENSOR 1 (THERMISTOR) SUCTION TEMP. SENSOR (THERMISTOR)
*R77
*R74
*R78
W W W W W W W