Lennox MMDA048S4-1P User Manual

Lennox Mini-Split Service Manual / Page 137
Illustrative Drawing of Board Shown - Actual Unit May Differ
MPA018S4S-1P
R1 3 2
R1 3 3
D6
C8 3
C8 5
C86
C91
C10 3
C41 0
D4 0 6
E1 0
E40 9
IC405
L1
Q2
Q3
R78
R1 5 0
R15 1
R1 5 2
R1 5 3
R1 5 5
R1 5 6
R15 7
R1 5 8
R16 9
R1 7 0
R1 7 1
R17 2
R3 2 0
R3 2 1
R3 2 2
R4 1 6
R4 1 7
R4 1 8
IC34
C2 0
C4 7
R5 0
R7 9
R8 0
R8 1
R82
R83
E3
R4 0 1
CN1 5
D4 0 5
E4
C6 8
D11
R7 5
R8 4
R15 9
R160
R9 5
R9 6
C6 9
C8 1
IC101
R5 3
R9 4
R1 2 7
C4 0 1
D4 0 1
T401
IC401
E40 2
IC9
E5
IC7
24LC512
C2 7
R52 1
R5 2 0
R5 1 9
R5 1 8
R5 1 7
R5 1 6
C5 1 6
C5 1 5
C5 1 4
C5 1 3
CN7
IPM1
C114
C1 1 3
C1 1 2
NTC 3
NTC1
R11 5
ZR3
R9 0
R9 1
R9 3
ON
21
ON
4
3
341
2
SW1
R9 8
CN2
D2 0
R1
C7
C8
R2
D1
CN1
NT C4
CN18
E27
R1 3 1
R1 0 8
C1 0 8
CN1 0
R1 4 3
CN11
CN16
RY5
CN2 0
C4 2
R71
R1 0 0 R1 0 1
C5 0 1
C5 0 7
C5 0 8
C5 0 9
C5 1 0
C511
C5 1 2
C517
DZ5 0 1
R50 1
R50 2
R5 0 3
R50 4
R5 0 5
R5 0 6
R50 9
R5 1 0
R5 1 1
R5 1 2
R51 3
R5 1 4
R5 2 3
R1 2 8
R12 9
R1 4 4
Q8
R5 1 5
R5 2 2
~~
IN
AC
-
++
-
R1 0 3
RC1
RC3
RC2
C1 4
CN3
CN4
CN1 7
CN21
DR
CN22
DR
D5 0 3
D5 0 2 D5 0 1
+
E50 4
E40 6
C4 0 7
R9
C3 5
C3 7
OSC1
ZR4
J6
RC4
C1 1 5
C1 1 6
C1 1 7
CN30
C59
R85
CN7- 1
PT C1
T1
Suc t i o n
(CompTop)
202302141272
1
RE A CT OR
P
U
V
RE D
BL ACK
BL UE
No
NO
NO
YES
Low- Fr e
No
Hav e
YES
Hav e
Temp- Pr o
PC817
4- WAY
HE A T
T4
3. 3V
12
1. 8V
311 TEST
34
11
1
22
78057815
Ea r t h
N- I N
Test Por t
DC- FA N
[1.0] 2014-7-5
12V
17V
L- OUT
CE- KFR72W/ BP3( 2) - 350( 311+0515+1246+STK5C4U341/ 340) . D.13.WP2 . 1
P
15V
1
44
65T 250V30A
Exhaust
RdiRi pm
5V
G
G
PC8 17
PC85 1
W
S
PMV
T3
AC- FAN
L- I N
RE A CT OR
TP
CN2 7
CN2 8
CN2 9
E1 2
C56
C40
C3 4
R53 3
R5 3 2
R5 3 1
R530
R1 0 7
E40 8
C4 1 1
C4 0 9
E40 4
C9 0
R1 7 7
J5
R136
R13 5
R1 3 4
R10 4
D1 2
D1 0
C5 4
D8
R1 7 8
R17 5
IC31
IC21
C7 3
R1 0 6
C4 0 5
C4 0 4
D40 7
R11 4
DZ2
IC16
IC6
R1 3 0
C5 0 4
DZ5 0 4
+
E50 2
DZ5 0 2
C5 0 2
+
E50 3
DZ5 0 3
C5 0 3
E11
DZ5
DZ3
DZ1
DZ4
D9
R5 7
R2 0
C2 4 2
C2 4 3
C2 4 4
R1 0 9
R5 8
R61
R6 0
R5 9
C7 0 C4 5 C4 6 C7 1 C4 4 C6 2
R1 1 0
E9
E7
C4 1 C7 2
C51
C5 0
C3 1
R6 0 5
R6 0 2 R6 0 6 R6 0 1 R6 0 3
R6 0 4
FANI PM
E8
C4 1 4
R50 8
R5 0 7
CN414
C50 6
C5 0 5
C6 0
R6 3
E40 7
R8 9
E40 3
E21
E20
E19
E2
R1 4 8
C6 6
C6
C1
R18
D7
IGBT1
D5
C8 0
C7 9
R1 5 4
LED1
Yel l o w
IC10
CN3 8
C4
C2 8
C4 0 6
R6 7
C8 4
C1 0
C1 1
IC4
C1 2
C3 8
R3 4
R3 7
R47
R8 8
IC32
R3 9
R35
R3 6
R19
R10
E6
IC3
C5 7
R5 1
C30
DSA1
C3
C8 2
C5
ZR2
ZR1
FUSE1
CN6
CN8
CN6- 1
R1 2 1
R6
R4
R3
IC1
E2 2
R11 9
R1 1 7
R5 6
R3 3
R2 9
R2 8
R2 2
R2 1
R1 4
C22
C1 5
R1 4 9
Q1
IC20
R40 9 R40 8
R46
R45
R4 3
IC404
IC402
PC81 7
E40 5
E2 6
D1 9
D18
C6 3
C5 8
X1
R4 1 9
R1 7 6
R1 6 5
R164
R1 6 3
R16 2
R16 1
R1 2 6
R1 2 5
R12 3
R12 2
R1 1 8
R10 5
R9 7
R92
R8 6
R52
R77
R76
R7 3
R7 0
R6 9
R6 8
R6 6
R65
R6 4
R6 2
R5 5
R5 4
R4 9
R48
R4 2
R4 1
R4 0
R31
R30
R5
LED2
RED
IC403
IC14
IC12
24LC08
IC8
24LC08
IC2
E28
E23
E17
E15
CN3 9
CN2 3
CN9
C2 5
C1 5 3
C1 4 7
C1 0 7
C1 0 6
C99
C98
C9 7
C9 6
C95
C9 4
C9 3
C9 2
C8 9
C8 7
C78
C6 7
C6 5
C5 2
C4 9
C4 8
C4 3
C3 9
C3 6
C3 3
C3 2
C2 9
C2 6
C2 4
C2 3
C21
C1 9
C1 8
C1 7
C1 6
C9
DZ6
C5 3
C7 6
E14
RY1
R4 4
R10 2
R1 6
R15
R116
R1 1 2
R1 1 1
C75
C74
R2 7
R26
R2 5
R2 4
R2 3
CN5
RY2
RY4
RY3
R7
D4
D3
CN13
CN1 2
C55
C1 3
BR1
C7 7
CN1 4
J1
J2
J4
C2
R11 3
R1 2 4
CN60
D2
E24
IC17
CN19
J3
R7 4
R8 7
R8
R7 2
CN2 4
R1 3
Ri p m
Rdi
R4 1 5
R4 1 4
R4 1 3 R4 1 2
LED3
GREEN
R12
E1
R3 2
R1 6 6
R1 6 7
R168
R1 2 0
Fault Code
LEDs

Lennox MMDA048S4-1P Specifications

General

Brand	Lennox
Model	MMDA048S4-1P
Category	Air Conditioner
Language	English