Yamaha MCR-330 Service Manual page 26

CRX-330/NS-BP100
3. FL CHECK
This menu is used to check the FL display section.
Using the sub-menu, the display varies as shown below.
All segments OFF
All segments ON (dimmer 100%)
All segments ON (dimmer 50%)
Lighting of segments in lattice (Pattern 1)
Lighting of segments in lattice (Pattern 2)
Lighting in lattice
Short
Segment conditions of the FL driver and the FL tube are checked by turning ON and OFF all segments.
Next, the operation of the FL driver is checked by using the dimmer control. Then a short between segments next to each
other is checked by turning ON and OFF all segments alternately (in lattice).
(In the above example, the segments in the second row from the top are shorted.)
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3-1 Initial display
Initial display
3-2 All segments OFF
3-3 All segments ON (dimmer 100%)
3-4 All segments ON (dimmer 50%)
3-5 Lighting of segments in lattice (Pattern 1)
3-6 Lighting of segments in lattice (Pattern 2)
Normal