Fujitsu FM3 family User Manual page 74

② Initialization State
When software internal initialization processing is completed and recognition
media (USB memory) is inserted, the simple AV system is in initialization state until
the media is recognized.
[Individual State]
Play/stop switch, selection previous switch, selection next switch
Does not function even if pressed down.
LCD Touch Panel
Does not function even if touched.
LED
All LEDs go off.
LCD
Total screen displayed in white.
USB
State where USB connection connector has not been inserted. When a USB
memory has been inserted into the USB memory connector, after being
recognized, the system shifts to audio data selection image display processing
state.
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