Page 37
GLBM188HB
12 – 1
GLBM188HB
Service Manual
CHAPTER 12.
CIRCUIT DIAGRAMS
[1] Pictorial Diagram
Figure S-1. Pictorial Diagram
DOOR SENSING SWITCH
MONITOR SWITCH
SECONDARY INTERLOCK SWITCH
POWER TRANSFORMER
CN-C
RY1
CN-B
CN-A
BRN
PPL
BLK
1
1
2
3
2
3
4
5
6
7
8
7
BLK
RED
RED
GRN
RED
GRN
YLW
WHT
WHT/WHT
RED
GRY/GRY
5
4
3
2
1
GRY
ORG
BRN
Control
harness B
CN-D
1
2
BLK/BLK
BLK
WHT
GRY/WHT
GRY
RY2
MAGNETRON
H.V. CAPACITOR
BLK
WHT/GRY
CN-F
HUMIDITY SENSOR
BLK
RED
BLK
BRN
MAGNETRON
TEMP.FUSE
WHT
2
1
3
6
3
2
4
5
1
RY5
C1
HOOD FAN
MOTOR
WHT
RY6
RY7
BLK
WHT
WHT
WHT
BRN
WHT
WHT
N. O.
OVEN
LAMP
RELAY
COM.
GR
Y
GR
Y
GR
Y
GRY
CONTROL
UNIT
DOOR UNIT
WHT
ANTENNA
MOT
OR
YL
W
WHT
YL
W
RED
N
.C
.
RED
RED
RED
WHT
WHT
E1
D40
20W
20W
E2
RED
GRN
DOOR
SENSING
SWITCH
WHT
RY1
BRN
RED
RED
A1
T1
VRS1
RY8
A5
A3
B3
C7
B1
C5
C3
HUMIDITY
SENSOR
F3
F2
F1
BLK
PRIMARY
INTERLOCK
RELAY
LOW VOLTAGE
TRANSFORMER
RY2
COM.
N.O.
RED
RE
D
BLK
BLK
BLK
BRN
RY3
TURN-
TABLE
MOTOR
RELAY
C9
1
1
1
1
6
12
CN-L
CN-J
CN-G
11
11
F
AN
MOT
OR
WHT
YL
W
YL
W
GR
Y
WHT
MONIT
OR
SWITCH
WHT
GR
Y
SECONDARY INTERLOCK
SWITCH
OVEN
LAMP
20W
TURNT
ABLE
MOT
OR
TTM
FM
ATM
OL
CL
CL
HM
COM.
HIGH
VOLTAGE
RECTIFIER
HIGH
VOLTAGE
CAPACITOR
0.94uF
2300VAC
POWER
TRANSFORMER
NOTES:
1. Circuits subject to change without notice
2. The neutral wire(White or Gray wire) must be connected to the prescribed tab terminal of the lamp socket.
3. Only certain models use the humidity sensor.
4. The neutral wire(White/Gray wire) must be connected to the winding end tab terminal of the power transformer
primary winding.
5. Only PLBMZ189HC has the earth wire.
MAGNETRON
POWER UNIT
145ºC
60ºC
120ºC
150ºC
OVEN THERMAL
CUT OUT
HOOD FAN
THERMOSTAT
High
Low
COOK
TOP
LAMP
N.O.
*NOTE 2
*NOTE 3
*NOTE 2
*NOTE 5
*NOTE
4
GRN
CN-M
CN-N
CN-D
GND
120V AC
60Hz
COM
N.O.
RED
YLW
BLK
BLK
PPL
BLK
WHT
WHT
NOISE
SUPRESSION
COIL
1.0mH
LINE
BYP
ASS
CAP
ACIT
OR
3300pF
250V
FUSE
20A
LINE
BYP
ASS
CAP
ACIT
OR
3300pF
250V
NOISE FILTER UNIT
RED
BLK
GR
Y
ORG
SWITCH
UNIT
ORG : ORANGE
BLK : BLACK
BRN : BROWN
PNK : PINK
RED : RED
YLW : YELLOW
PPL : PURPLE
BLU : BLUE
GRY : GRAY
WHT : WHITE
LEAD WIRE COLOR CODE
GRN : GREEN
Summary of Contents for GLBM188HB
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