Sanyo EM-P672WS - Page 11

STEPSTEP STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
Resistance
OK.
Check H.V. Capacitor or H.V. Diode with an Ohm-Meter after removing lead wires. (See page 5)
Normal
resistance
No
operation.
Check operation of Blower Motor when “START” key
is touched.
Normal
operation.
Check resistance of each winding after removing lead wires. (See page 4)
H.V. Transformer.
Resistance
incorrect.
Normal H.V. Capacitor or H.V. Diode.
Replace H.V. Transformer.
Normal H.V. Transformer.
(4) PROBLEM Low microwave power output.
b
a
Replace
Magnetron.
Normal
Magnetron.
Defective
H.V. Capacitor
or H.V. Diode.
Replace H.V.
Capacitor or
H.V. Diode.
Normal H.V. Capacitor or H.V. Diode.
Replace Thermal Protector for Magnetron or Thermal Protector for Cavity.
Normal Thermal Protector for Magnetron or Thermal Protector for Cavity.
Temporarily short across terminals of Thermal Protector for Magnetron or Thermal Protector for Cavity by using jumper lead.
No
operation.
Measure resistance
of Blower Motor
Approx. 41 Ohms.
Replace Control Circuit Board.
Normal Control
Circuit Board.
Resistance incorrect.
Replace Blower Motor.
Normal Blower
Motor.
PROBLEM 3-b
Runs Runs Runs Runs Runs Runs
RESULRESUL RESULRESUL
RESUL
TT TT
T
- 9 -
Normal
operation.