Panasonic NN-T221MB, Руководство по обслуживанию

Страница: 16 / 21

16
9.5. Inverter Power Supply
Caution
DO NOT try to REPAIR this H.V. inverter power supply). Replace as a whole H.V. Inverter Unit.
Figure 3
Inverter Power Supply Diagram
9.6. Inverter Power Supply Unit
Warning
Do not attempt to make any measurements in the high volt-
age circuitry of the inverter or magnetron.
See troubleshooting of the inverter circuit and magnetron on
P.19 and P20 to determine if the inverter power supply is still
functioning.
9.7. Temp Sensor (Thermal Protec-
tor)
A temperature sensor is mounted on top of the oven cavity at
the left side. Its purpose is to automatically shut off the oven in
case the cavity overheats for any reason.
The thermal protector will shut the oven off when the tempera-
ture of the cavity reaches 257
× F (125 × C).
The device is connected to the DPC ontouch control models.
When the thermal protector exceeds its set temperature it will
turn off the power to the oven cavity and the display will go to
reset mode. The cooking program can be reset after cooldown.
Thermistor Resistance Value
30K-120K at 10
×
C-30
×
C (50
×
F-86
×
F)