18
AF-T908X
AF-R908X
AF-R1108X
AF-R1208X
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
POWER SUPPLY
CORD
AC115V
60Hz
FU1
125V
4A
T1
OLR
MRY
COMPRESSOR
MOTOR
C
S
R
RUNNING
CAPACITOR
IN DOOR
FAN MOTOR
CAPACITOR
IN DOOR
FAN MOTOR
RY1
RY3
RY2
CNR1
CNR2
CNR3
FAN / H
ON DOOR
ON DOOR
ON DOOR
OUT DOOR
OUT DOOR
FAN / H
FAN / M
FAN / L
FAN / L
COMP
RY1
MRY
RY2
RY3
RY4
RY5
-12V
D8
D7
D5
D6
D10
D9
R1
22K
R8
2.7K
D3
D4
D1
D2
C2
25V
1000
µ
C3
25V
0.1
µ
C4
25V
0.1
µ
C5
25V
47
µ
C
C
I
I
O
O
C6
10V
100
µ
C7
25V
0.1
µ
C8
25V
0.1
µ
IC2
7812
IC3
79L05
D18
(CONTROL BOARD UNIT)
-5V
-12V
Q8
ZD1
HZ-4A2
KRA101M
(DTA143ES)
R2
15K
R3
10K
R4
20K
C10
C9
KRC101M
(DTC143ES)
Q9
-5V
OSC
4MHz
KRA106M x 5
(DTA143ZS)
Q1
Q7
BZ
Q2
Q3
Q4
Q6
A
B
Q5
KRA105M
(DTA123JS)
R9
16V
10
µ
x 2
BCN1
R10
15K(F) x 2
-5V
-5V
C14
C13
TH1(15K)
(ROOM TEMP)
(PIPE TEMP)
TH2(15K)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
DD
HOLD
R92
R91
R90
R83
INT1
R81
INT2
R63
R62
R61
R60
R53
X
OUT
X
IN
RESET
R70
R71
R72
R40
R41
R42
R43
R50
R51
R52
V
SS
ICI TMP47C243N
RA1
-5V
CN4
CA1
BCN3
1
2
3
4
5
6
7
8
7
6
5
4
3
2
1
C15
C16
-5V
-5V
-5V
10K x 3
R7
R6
R5
C22
C21
C12
C11
16V
10
µ
25V
C2 0
A
B
C19
16V
10
µ
C18
16V
10
µ
C17
IC4
CN3
BCN2
SW1
SW2
SW3
SW4
SW5
SW6
SW7
TEST
D11
D12
D13
D14
D15
D16
D17
R11
R12
R13
R14
R15
R16
R17
R18
150 x 8
CA1:1000 PF x 8 (CAPACITOR ARRAY)
RA1:10K
Ω
J x 8 (RESISTOR ARRAY)
SW1:ENERGY SAVER
SW2:TIMER
SW3:TEMP
SW4:SELECTOR
SW5:POWER
SW6: KEY
SW7: KEY
LED2 LED7:GREEN
LED8.LED9:YELLOW
IF NOT SPECIFED 1/4W. 5%
IF NOT SPECIFED 50V 1000
P
IF NOT SPECIFED 1SS270A
Electronic Control Circuit Diagram for AF-R908X, AF-R1108X and AF-R1208X
(DISPLAY UNIT)
(POWER SUPLLY UNIT)
18
10
9
1
LED1
Q10
Q11
Q12
KRA222M x 3
(DTB123EA)
LED2
LED3
LED6
LED8
LED7
LED9
LED4
L
E
D5
H
M
L
FAN
TEMP
TIMER
ENERGY
/SAVER
ON/OFF
TR
C1
250V
0.1
µ
0.1
µ
CN1
L
M
H
NR
3
5
1
7
CN2
3
1
5
RY4
RY5
CNR4
CNR5
OUT DOOR
FAN MOTOR
CAPACITOR
OUT DOOR
FAN MOTOR
L
H