Full Panasonic service Manual, as described, no problems
Text excerpt from page 16 (click to view)
U sing and Caring for Your Cooktop
Using and replacing the surface light
(Freestanding model)
The surface light is in the backguard. It is controlled by the Surface Light Command Pads on the control panel. The ON Command Pad turns on the light immediately and keeps it on until you press OFF. The Night Command Pad will turn on the surface light automatically when the light in the room is low enough to require a night light. When the night light comes on, it will also dim all lights appearing on the display. Press OFF to turn off the regular surface light or press NIGHT again to turn off the night light.
Replacing the surface light:
1. Unplug range or disconnect power.
2. Flip up the top of the backguard.
To turn on the surface light:
PRESS
SURFACE LIGHT
ON
To turn off surface light:
PRESS
SURFACE LIGHT
3. Pull up glass on front of backguard.
OFF
To turn on night light:
PRESS
SURFACE LIGHT
NIGHT
�NIGHT LIGHT� shows on the display when the night light is on.
4. Grasp the fluorescent light tube at both ends. Turn the tube approximately 90° in either direction until both ends come out of the receptacles. Replace with a 20-watt cool-white fluorescent light tube.
To turn off night light:
PRESS again
SURFACE LIGHT
