Display Check - Yamaha RX-V559 Service Manual

RX-V559/HTR-5950/DSP-AX559

7. DISPLAY CHECK

This program is used to check the FL display section and
video control section. The display condition varies as
shown below according to the sub-menu operation.
The signal route is STRAIGHT.
Checking FL display section /
Initial display /
All segments OFF /
All segments ON (dimmer 100%) /
All segments ON (dimmer 50%) /
Lighting of segments in lattice /
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 al-
ternately (in lattice). (In the above example, the segments
in the second row from the top are shorted.)
28
Blinking /
Normal /
Checking OSD section (Monitor Out) /
Initial display /
OSD OFF /
All characters ON /
The 128 pictographs for
checking the OSD driver
are used for the video
signal output display.
All characters ON /
All characters ON /