I have been using the MOGD facility to download fonts to a GK 24064-25 after it has become corrupted. Sometimes this seems to work first time and sometimes I need to try a number of times before I get any success. Has anyone any suggestions?

Also, does anyone know exactly what the "Set Font Metric ...

It appears that the contrast on our display is lost if power is removed from the display. We can reset the contrast using mogd but this only lasts until the power is removed again.

Does this suggest that the unit has somehow lost its 'default' contrast? Could this default be overwritten by a buffer ...

I assume that the unit was bought in 1999 but I'm not sure where it was bought from.

We have been driving the unit with a higher message rate and have repeatedly managed to get display corruptions and then managed to corrupt the memory holding the font information. Would you expect this to happen ...

On inspection, it would appear that our unit is a GK 24064-25 rev. 1.01 (c) 1999. I can't seem to find a matching manual for this unit.
Is this the same unit as a GLK 24064-25?

I'm afraid that I'm not in a position to be able to take a picture of the back of the unit at the moment but I can assure you that we have not incorporated the memory lock down.

Would you recommend that the memory lock down should be done for such units?

Thanks for the feedback. :smile:

I note that the version of the manual that was being used by my predecessors does not have the section on Memory Chip Lock Down.

Has this section been added specially to clear such faults?

Has anybody had experience of clearing such faults by doing this?

Also ...

Our customer is experiencing occasional font corruptions on some equipment that is built around one of your LCD units. These cause us major inconveniences when they occur as the unit has to be removed from the equipment and connected to a PC to reload the fonts.

Note, there are a number of these ...