Frigidaire 316495069, FMV152K manual Schematic Diagram Wiring Diagram, Parts Layout, Switch Chart

MICROWAVE OVEN TECH SHEET

CAUTION

Schematic Diagram Wiring Diagram

Disconnect from Electrical Supply Before Servicing Unit

Warning : Power must be disconnected before servicing this appliance

MODEL NO. : FMV152K

Warning : Power must be disconnected before servicing this appliance

MODEL NO. : FMV1 5 2 K

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID PROSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

				SINGLE
			ONLY
OG:ORANGE	BR:BROWN	WH GN	BK	POWERSUPPLY : PHASE
YW:YELLOW	WH:WHITE			FILTERASS'Y
RD:RED	BK:BLACK		FUSE
BL:BLUE	GY:GREY

A. Do not operate or allow the oven to be operated with the door open.

B. Make the following safety checks on all ovens to be serviced before activating the Magnetron or other microwave source, and make repairs as necessary.

1.Interlock operating.

2.Proper door closing.

3.Seal and sealing surfaces ( Arcing, wear and other damage.)

4.Damage to or loosening of hinges

and latch.

5. Evidence of dropping or abuse.

C.Before turning on microwave power for any service test or inspection within the microwave generating compartments.

check the magnetron. Waveguide or transmission line. And cavity for proper alignment, integrity and connection.

D. Any detective or mis-adjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired. replaced. or adjusted by producers.

designed in this manual before the oven Is released to the owner.

E. A microwave leakage check to verify Compliance with the Federal performance Standard should be performed on each oven prior to release to the owner.

F. Do not attempt to operate the oven if the door glass is broken.

GN:GREEN

PK:PINK

CAVITY

GN

THERMAL

1

CUT-OUT

2

(1

10/0)

BK

BK

VENT

MOTOR

26 GY

7

T.P.

HI (RY5)

25 BL24 BK

8

HOOD THERMAL CUT-OUT (40/70) 27 OG

28 GN 29 YW

MOTOR CAPACITOR

(1

6

LOW

0/

95

(RY4)

MGTTHERMAL -CUTOUT )

VENTRELAY

9

30WH

LAMP RELAY

3 BK

ON

6

CUT

BOTTOM THERMAL

(RY3)

L

- (1

2

0/

23GN

21 YW

19 YW

OUT 0

COOKTOP

)

LAMP

L

4

BK

5 RD

1

20 BL

12

1

POWER RELAY

YW-32

WH-31

BK-24

BL-25

GY-26

GN-23

OG-18

BR-22

RD-5

WH-12

BK-10

YW-32 WH-31

BK-17 WH-15 WH-15 YW-7 WH-16 OG-18 BL-20 YW-6 BK-17 WH-16 BL-20 GN-23

WH-30 GN-28 YW-29 OG-27 BL-25

BK-1

BK-2

DOOR

SENSING

SWITCH	OG:ORANGE BR:BROWN
	YW:YELLOW	WH:WHITE
T/TABLE	RD:RED	BK:BLACK
	BL:BLUE	GY:GREY
MOTOR
	GN:GREEN	PK:PINK
		GROUND
FAN		HARNESS LEADS
MOTOR		PARTS LEADS
OVEN
LAMP
YW-19	COOKTOP
YW-21
	LAMP
		H.V.CAPACITOR
VENT
MOTOR		RD
		RD	WH
	H.V.DIODE	FA MGT TUBE
CAVITY		F
	POWER	RD
THERMOSTAT	CORD

Parts Layout

VENT MOTOR

OVEN

THERMOSTAT

	MOTOR
	CONDENSER
	NOISE FILTER
	OVEN LAMP
	H.V.CAPACITOR
	H.V.DIODE
	MAGNETRON
T/TABLE	MAGNETRON
MOTOR
	THERMOSTATA
	H.V.TRANSFORMER

L.V.T
CONTROL	22 BR	3	L
			120V
			OVEN
			LAMP
P.W.B.		17 BK	120V
ASS'Y			TURNTABLE
			MOTOR	6 YW
		16 WH	TTM
SUB RELAY			FAN	15WH
			MOTOR
(RELAY 1)			FM
	18 OG	4
	12			7 YW	PRIMARY INTERLOCK
POWER RELAY				8 BK	( UPPER)
(RELAY 2)	WH
	10		MONITOR
	BK
			INTERLOOK
			SWITCH
		11 WH	9 WH
12	11		H.V.
			TRANS

P C B

BK-2

BK-3

BK-3

BK-4

GY-26

BK-24

OG-27

BK-4 YW-6 YW-7 BK-8 WH-11 WH-9

PRIMARY MONITOR

SWITCHSWITCH

					H.V.TRANS
MGT
THERMOSTAT
				GND
BOTTOM				BK	WH
THERMOSTAT
HOOD					WH-11 BK-10	WH-9 BK-8
THERMOSTATA
				BK	WH
GN-28	YW-29	BK-1	WH-12	BK	WH
			OUT		IN
MOTOR				NOISE
CONDENSER				FILTER

		MONITOR
		SWITCH	FAN MOTOR
COOK TOP
LAMPS
			HOOD THERMOSTAT
	PRIMARY	DOOR	BOTTOM
	SWITCH
		SENSING	THERMOSTAT
Made in china
		SWITCH

	F
32 YW	31 WH	H.V.
DOOR	FA	CAPACITOR
SENSE

SWITCH (BOTTOM)

MAGNETRON

H.V.DIODE

NOTE: Door is open

NOTE: For servicing replacement use 16GA,105 C thermoplastic covered wire except for high voltage leads or as noted on special leads.

Switch Chart

	SWITCH	CHECK BY			DOOR		DOOR
						_	CLOSE
		Disconnect the wires at the Primary Interlock Switch.
	Primary						+
	Interlock	Check from the common terminal
		to the normally opened terminal.
	Door sensing	Disconnect the wires at the sensing interlock Switch.				_	+
	Interlock	Check from the common terminal and
		Normally closed terminal
	Monitor	Disconnect the wires at the Monitor Switch.				+	_
	Interlock	Check from the common terminal and
		Normally closed terminal .
				(		+) CONTINUITY
	L			(		) NO CONTINUITY
							N
DOOR
OPEN		Primary	Door	Monitor
		Interlock	Sensing	Interlock
	L	Switch	Switch	Switch			N
DOOR
CLOSE		Primary	Door	Monitor
		Interlock	Sensing	Interlock
		Switch	Switch	Switch

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)

OUTPUT POWER OF MAGNETRON

CAUTION MICROWAVE RADIATION

PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OTHER PARTS CONDUCTING MICROWAVE ENERGY.

The output power of the magnetron can be measured by performing a water temperature rise test. Equipment needed:

*Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm)

*One glass thermometer with mercury column

NOTE: Check line voltage under load. Low voltage will lower the magnetron output. Make all temperature and time tests with accurate equipment.

1.Fill the one liter glass vessel with water.

2.Stir water in glass vessel with thermometer, and record glass vessel’s temperature (“T1”, 10+_ 1 C).

3.After moving the water into another glass vessel, place it in the center of the cooking tray. Set the oven to high power and operate for 47 seconds exactly.

( 3 seconds included as a holding time of magnetron oscillation)

4.When heating is finished, stir the water again with the thermometer and measure the temperature ( “T2”).

5.Subtract T1 from T2. This will give you the water temperature rise. (T )

6.The output power is obtained by the following formula;

Output =	4.187x1000x T+0.55xMcx(T2-T0)	45 : Heating Times (sec)
	42	( 3 seconds included as a holding time
		of magnetron oscillation.)
		4.187 : Coefficient for water
		1000 : Water ( cc )
		T : Temperature Rise (T2-T1)
		T0 : Room Temperature
		Mc : Cylindrical borosilicate glass weight
7. Normal temperature rise for this model is 9.9 C to 10.3		C at ‘HIGH’.

NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise. Additional power test should be made if temperature rise is marginal.

NOTE 2: Output power in watts is computed by multiplying the temperature rise (step 5) by a factor of 91 times the of centigrade temperature.

Component tests

WARNING

		Personal injury/Product Hazard
		Disconnect the power supply cord	after performing any test or repairs
		from the outlet before removing the	to the microwave.
		outer cabinet from the unit.	Check that all wire leads are in the
		Discharge the high voltage capacitor	Correct position before operating
		and remove the lead wires from	The microwave oven.
		The primary winding of the high voltage	Grasp wire connectors when
		transformer before conducting any of	removing the wire leads from
		the following tests.	microwave parts.
		Conduct all operation tests with 1 liter	Failure to follow these instructions may
		of water in the oven.	result in electrical shock or other
		Conduct a microwave energy test	Personal injury or in product damage.
		High voltage components
Transformer		1. Remove wire leads.
Secondary	Filament	2. Measure resistance .( ohm meter scale: Rx1)
Terminal	Terminals
		Primary winding	Approx. 0.334+2% ohm.
		Secondary winding	Approx. 118.7+2% ohm.
		Filament winding	0 ohm..
		3. Measure resistance .( ohm meter scale: Rx1000)
		Primary winding to ground	Normal: Infinite.
Primary		Filament winding to ground	Normal: Infinite.
Terminal
Magnetron		1. Remove wire leads. Install the magnetron seal in the
		correct position .Check that the seal is in good condition.
	Cooling	2. Measure resistance .( ohm meter scale: Rx1)
	Fins
		Filament winding	Normal: Less than 1 ohm

3. Measure resistance .( ohm meter scale: Rx1000)

		Filament to chassis	Normal: Infinite.
Capacitor	1. Remove wire leads.		Normal:
	2. Measure resistance .( ohm meter scale: Rx1000)
			Momentarily indicates several
		Terminal to terminal
			ohm, and then gradually
			returns to infinite.
		Terminal to case	Normal: Infinite.
Diode	1.	Measure continuity. Forward .( ohm meter scale: Rx1000)	Normal: Continuity.
Some inexpensive			Abnormal: Infinite.
Meters may indicate
Infinite resistance in
both directions			Normal: Infinite.
	2.	Measure continuity. Reverse .( ohm meter scale: Rx1000)	Abnormal: Continuity.
Ventilation Motor	1. Remove wire leads.

2. Measure resistance .( ohm meter scale: Rx1)

2 level: White and Blue wire Approximately 35.2 ohms

Other component tests

Components		Test	Results
T/Table Motor	1. Remove wire leads.		Normal:
	2.	Measure resistance. ( ohm meter scale:	Approximately: 3.3k ohms
		Rx1000)
Fan Motor	1.	Remove wire leads.
			Normal:
	2.	Measure resistance. ( ohm meter scale:	Approximately: 97.4 ohms
		Rx1)

p/n 316495069