Samsung MB6774W, MB6774W-SAM Schematics Diagram

9. Schematic Diagrams

9-1 Schematic Diagrams

9-1

VARISTOR

HEATER 2

GRILL

TCO

GRILL

RELAY

HEATER 1

L.V.TRANS

LAMP

MAIN RELAY

POWER RELAY

(SECONDARY INTERLOCK)

PRIMARY S/W

CAVITY

TCO

FAN

MOTOR

D/MOTOR

MONITOR

SWITCH

H. V. TRANSFORMER

H. V. CAPACITOR

120V

0V

F FA

MAGNETRON

POWER CORD
AC 120V/60Hz

BLK

BLK

BLK

BLK

BLK

BLU

BLK

BLK

BLK

BLK

BLK

YEL

YEL

FUSE

250V20A

WHT

WHT

WHT

WHT

WHT

WHT

WHT

ORG

ORG

POWER MUST BE DISCONNECTED
BEFORE SERVICING THIS APPLIANCE

WARNING

NOTE: CIRCUIT SHOWN WITH DOOR IS OPENED POSITION.
NOTE: FOR SERVICE REPLACEMENT USE 16 GA 105˚ C
THERMOPLASTIC COVERED WIRE EXCEPT
FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS.

1. INPUT : 120V 60HZ

2. DOOR : OPEN

3. LAMP : ON

4. : P.C.B PATTERN

5. : P.C.B IN/OUT POINT

MGT
TCO

COM

NC

120V

130V
40W

21V

0V

NO

L

FM DM

BLK

BLK

R

RED

RED

ORG

WHT

BLK

WHT

ORG

ORG

WHT

BLU

BLK

MAGNETRON

HIGH VOLTAGE
DIODE

TO CHASSIS

FA F

HIGH VOLTAGE
TRANSFORMER

POWER RELAY

DOOR SENSING SWITCH
BOTTOM

MONITOR SWITCH
CENTER

BLK

WHT

PRIMARY SWITCH

TOP

HIGH VOLTAGE CAPACITOR

WHT

WHT

BLK

RED

ORG
WHT

SYMBOL COLOR

BLU

BLK

RED

YEL YELLOW

ORANGE

WHITE

BLUE

BLACK

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