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Page 45
6-8
#826151 - Revision A - March, 2016
Microwave Drop-Down Door Series
Microwave Drop-Down Door Series
Wiring
WIRING SCHEMATICS
DISPLAY UNIT PWB
MDD30CM
: IF NOT
SPECIFIED 1/LOW J(±5%)
: IF NOT
SPECIFIED 0.01 uF 50V
: IF NOT
SPECIFIED 1SS 352/1SS355/KDS160
: NOT
INSER
T
P
A
R
T
S
1.
2.
3.
4. ( )
E-1
E-4
E-2
E-3
E-9
E-7
E-8
E-10
E-6
R700 1K
R701 1K
R703 1k
R704 1k
INT
RST
TXD
RXD
CLK
C702
50V/0.1u
50V/0.1u
C703
+
E-5
CN-E
R702 100
C700
35V/10u
+
-
C701
35V/10u
-
R501
680
R502
680
BZ1
R500
Q501
Q500
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
SI_B
SDA(SO_B)
INT_B
P1
1_4
P1
1_5
INT
T_RESET
VCC
Xin
VSS
XOUT
RESET
XCOUT
XCIN
MODE
VREF
WKUP0
P13_0
TXD
RXD
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
IC200
RH-IXA945DRNA
R5F2L388CNFP
SCL
(SCK_B)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
COM1
COM2
COM3
COM4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
VL4
CLK
P12_2
P12_3
VL3
VL2
VL1
P0_0
P0_1
P0_2
P0_3
P0_4
P0_5
P0_6
P0_7
SEG40
SEG39
SEG38
SEG37
SEG36
SEG 1 1
SEG 2 2
SEG 3 3
SEG 4 4
SEG 5 5
SEG 6 6
SEG 7 7
SEG 8 8
SEG 9 9
SEG 1010
SEG 11 11
SEG 1212
SEG 1313
SEG 1414
SEG 1515
SEG 1616
SEG 1717
SEG 1818
SEG 1919
SEG 2020
SEG 2121
SEG 2222
SEG 2323
SEG 2424
SEG 2525
SEG 2626
SEG 2727
SEG 2828
SEG 2929
SEG 3030
SEG 3131
SEG 3232
SEG 3333
SEG 3434
SEG 3535
SEG 3636
SEG 3737
SEG 3838
SEG 3939
SEG 4040
COM 4 41
COM 3 42
COM 2 43
COM 1 44
LCD1
R601
4.7K
R603
240
470
R604
240
470
R602
200
470
LCD BACK LIGHT
LD1
L
D2
LD3
LD5
LD4
2
Q600
Q300
Q301
WH-B
1
2
3
4
5
6
7
R315 1K
R310 1K
R31
1 1K
R304
10k
R303
10k
R302
10k
R301
10
VL1
VL2/3
VL4
C300
50V/0.1u
R307 10K
R306 10K
R305 4.7K
R300
CF200
CF302
50V/0.1u
R313
R312
R317 1K
R316
100
R318 1K
R319 1K
R320 100
CN-B
1 2 3 4 5 6 7
RESET
VCC
INT
VSS
CN-F
1 2 3 4
RESET
MODE
VDD
VSS
SO
SI
SCK
1
2
3
4
5
6
7
R314
R308 1K
R309 1K
WH-A
C301
CN-B
CN-A
R401~R402 1K*3
R400
R401
R402
C404
R412
R403
R404
R405
R403~R405
10K*3
C400
C401
10V 1u
50V 0.1u
R407~R408 1K*3
R406
R407
R408
C405
R413
R409
R410
R411
R409~R41
1
10K*3
C402
C403
10V 1u
50V 0.1u
IC400
EXPOSED
PAD
1
2
3
4
ALER
T
SMDA
T
A
SMCLK
VDD
12
11
10
9
CS5
CS6
CS7
CS8
13
14
15
16
CS4
CS3
CS2
CS1
8
7
6
5
GND
GND
N/C
N/C
IC401
EXPOSED
PAD
1
2
3
4
ALER
T
SMDA
T
A
SMCLK
VDD
12
11
10
9
CS5
CS6
CS7
CS8
13
14
15
16
CS4
CS3
CS2
CS1
8
7
6
5
GND
GND
N/C
N/C
EXPOSED P
A
D: CONNECTED
T
O
GND
EXPOSED P
A
D: CONNECTED
T
O
GND
RIGHT
SIDE KEY
LEFT
SIDE KEY
ST
AR
T
86
7
4
3
2
5
0
1
9
DECREASE
INCREASE
ST
OP
CLEAR
TIMER
LOCK
MANUAL
DEFROST
KEEP
WA
R
M
SOFTEN
AUT
O
DEFROST
POWER
LEVEL
WOLF
GOURMET
MEL
T
SENSOR
REHEA
T
BEVERAGE
POPCORN
SETTINGS
CONTROL
LOCK
ADD
MINUTE
- This wiring information is provided for use by qualified service personnel only.
- Disconnect appliance from electrical supply before begining service.
- Be sure all grounding devices are connected when service is complete.
- Failure to observe the above warnings may result in severe electrical shock.