Panasonic NN-V673SBBPQ, Service Manual

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Figure 3
9.6. Inverter Power Supply Unit
Warning
Do not attempt to make any measurements in the high voltage
circuitry of the inverter or magnetron.
See troubleshooting of the inverter circuit and magnetron on P.20 to determine if the inverter
power supply is still functioning.
9.7. Steam Sensor and Digital Programmer circuit
Caution
Do not touch any parts of the circuitry on the digital programmer
circuit since static electric discharge may damage this control panel.
Always ground yourself while working on this panel to discharge
any static from your body.
In order to detemine if the steam sensor programe of the digital programmer circuit is in working
order, do the following test.
1. Place a water load (150cc) inn the oven
2. Set the Auto sensor program 5 fish.
3. Tap the Start pad
4. Steam Sensor detects steam about 1 minute and 30 seconds to
four minutes after the start pad is pressed.
5. T1 cooking switches the cooking time T2.
6. The cooking time T2 appears in the display window. If the
following times appear the steam sensor is functioning normally.
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