Yamaha R-N500 Service Manual page 24

R-N500
D1. FL CHECK
This menu is used to check operation of the FL display.
Segment conditions of the FL tube is checked by turning ON and OFF all segments.
Next, 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.)
24
FL display
D1-1. INITIAL DISPLAY
D1-2. ALL SEGMENT OFF
D1-3. ALL SEGMENT ON
* After check, change to next menu at once.
D1-4. CHECK PATTERN 1
D1-5. CHECK PATTERN 2
Example
Lighting on segments in lattice.
Short Normal