HTR-5890
25
HTR-5890
Initial display
All segments OFF
All segments ON (dimmer 100%)
All segments ON (dimmer 50%)
Lighting of segments
in lattice
Lighting in lattice
Normal
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.)
8. EFFECT OFF / DISPLAY CHECK
This program is used to check the FL display section.
The display condition varies as shown below according
to the sub-menu operation. The signals are processed
using EFFECT OFF (The L/R signal is output using
ANALOG MAIN BYPASS.)
The video signal internal/external synchronization
switching is controlled by the microprocessor. When
the initial message is displayed and all the FL segments
light up, it is switched to the internal synchronization but
o t h e r t h a n t h a t i t i s f o r c e d t o t h e e x t e r n a l
synchronization setting.
Also, except for the initial display, 128 pictographs for
checking the OSD driver are used for the video signal
output display.
