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PAGE 2

TECH SHEET - DO NOT DISCARD

PART NO. 8184997

/4619-651-98301

FOR SERVICE TECHNICIAN'S USE ONLY

SYMBOL

N

OTES

CONDITION:

DOOR

OPENED

H.V

.

TRANSFORMER

UP

MAGNETRON

H.V

.

CAP

ACIT

OR

H.V

.

DIODE

FUSE

DOWN

TT

3B

9Y

6B

R

7 BL

14

OR

15

W

19 BL

16

R

2P5

20 BL

1P5

22

W

NFS

Door

Cav

Lt/

Door

4903

W

R

12

B

27

W

25

W

26 W

23

B

INTERLOCK

SECONDAR

Y

ELECTRONIC

CONTROL

BOARD

INTERLOCK

PRIMAR

Y

INTERLOCK

MONIT

OR

Motor

FA

F

T

urntable

R

Microwave

Relay

Thermostat

Magnetron

HF

CL

LFS

2

1

MW

2B

40 R

21

R

24

BL

37 R / W

O

R/R

O

R/R

Capacitor

Y/

W

Exhaust

Fan

Thermostat

31

W

34

W

29 G

5P5

4P5

HL

28 BR

30

Y

GND

38 Y/G

L1

P2

L.V

.T

.

Prim.

Sec.

TR1-5100

N1

1

HL

Night

Light

Hood

Light

L

G

N

G

B

W

120V

/

60Hz

Cavity

Thermostat

2

F/L

TTM

13

GR

1

26

W

20

AMP

13

GR

16 R

14

OR

Y

B

BL

Fan

On/Of

f

8R

10

BL

11

W

HF2

HF1

FT

1P0

5P0

1

P3

P4

Cavity

Thermostat

1

(TCO)

1 BL

TT

CA

VITY

LAMP

TURNT

ABLE

MOT

OR

HOOD

F

A

N

MOT

OR

CL

W

R

HF

Y

B

BL

HOOD

LAMP

(COOKT

OP

LAMP)

HL

B:

BLACK

BL:

BLUE

R:

RED

W:

WHITE

G:

GREEN

Y:

YELLOW

P0/P2/P3/P4/P5:

CONNECT

ORS

BR:

BROWN

OR:

ORANGE

GR:

G

RA

Y

1B

L

WIRE

COLOR

-

BLUE

WIRE

NO.

-

1

DWG

NO.

MU-072

High/Low

Fan

4901

4906

4910

4912

491

1

4909

41 R

41

R

SCHEMATIC DIAGRAM

Содержание MH1150XMQ

Страница 1: ...the window area of the door is broken Electrical Shock Hazard Disconnect power before servicing Replace all parts and panels before operating Failure to do so can result in death or electrical shock Display Likely Failure Condition Recommended Repair Procedure Flashing colon Power failure After a power failure the colon will be flashing Press any key to end this indication The colon will then be s...

Страница 2: ...1 MW 2 B 40 R 21 R 24 BL 37 R W OR R OR R Capacitor Y W Exhaust Fan Thermostat 31 W 34 W 29 G 5P5 4P5 HL 28 BR 30 Y GND 38 Y G L1 P2 L V T Prim Sec TR1 5100 N1 1 HL Night Light Hood Light L G N G B W 120V 60Hz Cavity Thermostat 2 F L TTM 13 GR 1 26 W 20 AMP 13 GR 16 R 14 OR Y B BL Fan On Off 8 R 10 BL 11 W HF2 HF1 FT 1P0 5P0 1 P3 P4 Cavity Thermostat 1 TCO 1 BL TT CAVITY LAMP TURNTABLE MOTOR HOOD ...

Страница 3: ...CK WHITE MONITOR INTERLOCK SWITCH WHITE WHITE BLACK BLACK WHITE HOOD LAMP HOLDER HOOD LAMP WHITE WHITE RED YELLOW WHITE ORANGE RED WHITE ORANGE RED ORANGE RED WHITE F FA BROWN GREEN MOTOR CAPACITOR MOTOR 5 4 2 1 1 2 4 5 RED WHITE WHITE TURNTABLE SIX POLES CONNECTOR P5 BLUE BLUE RED 4903 1 2 WHITE BLACK WHITE WHITE BLACK WHITE WHITE ORANGE BLUE BLUE BROWN P2 5100 U1 DWG NO L M1 075 BLUE THERMOSTAT ...

Страница 4: ...1 071 ELECTRONIC CONTROL BOARD 1 4903 1 2 P2 5100 U1 1 P4 1 P3 TURNTABLE MOTOR RED H V TRANSFORMER TURNTABLE MOTOR COOKTOP LAMP CAVITY LAMP EXHAUST FAN THERMOSTAT WHITE RED GREEN GRAY BROWN COOKTOP LAMP EXHAUST FAN THERMOSTAT HOOD FAN MOTOR INTERLOCK PRIMARY INTERLOCK SECONDARY YELLOW BLUE WHITE BLACK WHITE ORANGE P1 PICTORIAL DIAGRAM ...

Страница 5: ... terminal Orange wire Monitor Disconnect the wires at the Monitor Switch Check from the common terminal White Blue wires to the normally closed terminal Red wires Continuity No Continuity NOTE These diagrams are not intended to show a complete circuit they represent the position of switches during DOOR OPEN and DOOR CLOSED continuity checks only PRIMARY SECONDARY AND MONITOR INTERLOCK SWITCH CHECK...

Страница 6: ...or and while still depressing the CANCEL OFF button unplug the microwave oven for two seconds and plug it back in 2 Release the CANCEL OFF button and then close the door 3 Now by pressing each button on the control panel the number 8 will appear in the display to indicate that the circuits are complete and all relays are working NOTE If the CANCEL OFF button is pressed during this diagnostic routi...

Страница 7: ...kΩ HIGH VOLTAGE SYSTEM MAGNETRON THERMOSTAT PRIMARY INTERLOCK SWITCH MONITOR SWITCH BL TT ON OFF RELAY F L CAVITY THERMOSTAT 2 MICROWAVE MICROCOMPUTER BOARD CAVITY THERMOSTAT 1 BL RELAY R BR GR BL B CAVITY LIGHT G W W 4P4 CAV LT DOOR RELAY R 6P4 2 1 W B W L1 B B N TT R BR W BL W 3P3 4P3 B FAN HIGH LOW RELAY MOTOR CAPACITOR B R R Y Y BL BL W FAN ON RELAY LOW VOLTAGE TRANSFORMER MICROWAVE COOKING BL...

Страница 8: ...Y FUSE 20 AMP BLOWER FAN ON LOW TRANSFORMER MICROCOMPUTER BOARD N CAVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 W BL B R BR 1P2 3P2 LOW VOLTAGE G W L1 BR FUSE 20 AMP MICROWAVE PLUGGED IN TIME OF DAY DISPLAYED MICROCOMPUTER BOARD L1 OVEN CAVITY LIGHT LOW VOLTAGE TRANSFORMER ACTIVATED BY OPENING AND CLOSING MICROWAVE DOOR CAV LT DOOR RELAY N CAVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 W BL B BR 1P2 3P2 4P4 B ...

Страница 9: ...AVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 BL B R FUSE 20 AMP 1P2 3P2 1P3 LOW VOLTAGE W W Y W W G DIODE NIGHT LIGHT ON RELAY COOKTOP LIGHT ON LOW NIGHT LIGHT MICROCOMPUTER BOARD COOKTOP LIGHT L1 BR TRANSFORMER BR N CAVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 BL B R 1P2 3P2 1P3 LOW VOLTAGE W W Y W W G HOOD LIGHT ON RELAY FUSE 20 AMP COOKTOP LIGHT ON HIGH B BL BR G R W Y BLACK BLUE BROWN GREEN RED WHITE YEL...

Страница 10: ...terminal Terminal to case Normal Momentarily indicates several ohms gradually returns to Infinite Normal Infinite H V Diode 1 Measure continuity ohmmeter scale Rx1k Forward Normal Continuity Abnormal Infinite Some inexpensive meters may indicate infinite resistance both directions 2 Measure continuity ohmmeter scale Rx1k Reverse Normal Infinite Abnormal Continuity CONTINUED Chassis COMPONENT TESTS...

Страница 11: ...d Black wires For Low Speed Red and Blue wires Blue and White wires Normal 79 119 ohms approximate 22 43 ohms approximate 79 119 ohms approximate 43 62 ohms approximate Abnormal Infinite Thermostats NOTE Refer to Parts Layout on page 5 for opening and closing temperatures 1 Remove wire leads 2 Cavity and Magnetron Thermostats Measure continuity ohmmeter scale Rx1 Normal Continuity Abnormal Infinit...

Страница 12: ...PAGE 12 TECH SHEET DO NOT DISCARD PART NO 8184997 4619 651 98301 FOR SERVICE TECHNICIAN S USE ONLY This page is intentionally blank ...

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