Chapter 14. Circuit Diagrams Oven Schematic - Sharp R-239 Service Manual

CHAPTER 14.
R239(W)
CIRCUIT DIAGRAMS
[1] Oven Schematic
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
NOISE FILTER
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
NOISE FILTER
Service Manual
NOTE: " " indicates components with potentials above 250V
TF: TEMP.
FUSE
N.O.
2ND.
INTERLOCK
RELAY
(RY-2)
(RY-1)
N.O.
CONTROL UNIT
B2
COM.
SW3:
2ND. INTERLOCK
RELAY CONTROL
SWITCH
Figure O-1 Oven Schematic-OFF Condition
TF: TEMP.
FUSE
N.O.
2ND.
INTERLOCK
RELAY
(RY-2)
(RY-1)
N.O.
CONTROL UNIT
B2
COM.
SW3:
2ND. INTERLOCK
RELAY CONTROL
SWITCH
Figure O-2 Oven Schematic-ON Condition
14 – 1
COM.
B1
SW1: 1ST. LATCH
SWITCH
COM.
B1
SW1: 1ST. LATCH
SWITCH
R239(W)