Take a look at the attached pic...

The backlight brightness is all over the map. I swear that they started out the same.

These displays have been in service for only ~1 month.

They now appear this way as soon as they are powered-on.

I've tried boosting "brightness" slider using uProject (232 ...

Omnipresent President Henry said:
They [itsy smt jumpers] were my idea the reason they are there is for large scale production, we are able to set the units to I2C or TTL or RS232 by placing these 0 ohm resistors in the switching matrix, making them easier to manufacture in larger volumes and less ...

It looks like all of the offending displays (Qty = 5) were purchased on Feb 6, 2007. PCB R2.0

On Jan 10, 2007 we purchased 12 of the same model. These do not have the errant jumpers installed. These were also PCB R2.0 These displays worked fine out-of-the-box.

Serial numbers of the bad displays ...

To our dear friends at Matrix Orbital,

We're just finishing off three identical control systems that use 4 LCD0821 PCB R2.0 displays on the same I2C bus. Addresses 0x50, 52, 54, & 56.

No matter how we tried, we could not get the displays with address 0x56 to stick. The spiffy uProject utility ...