[EMAIL PROTECTED] wrote:
I don't think your concerns are warranted. The LCD is an array of transistor
switches which affect the transmission of light by polarizing effects of
The sort of LCD display used on the K2, and I believe the K3, doesn't
have any active components (such as transistors) on the display.
their electrostatic field. The actual light is provided by backlighting from
light emitting diodes which are well known for their longevity.
When I first saw this thread, I assumed it was about wearing out the
liquid crystals, not about the back light. Actually driving the liquid
crystals will eventually wear them out, as it is not possible to
completely avoid DC components in the drive (LCDs are driven by AC
(acutally complex waveforms that average to zero DC for both selected
and non-selected elements) to avoid elecrolysing the liquid crystals.
I'd therefore say, don't worry about the backlight, except on power
consumption grounds; it is the display itself you may want to power down.
The Day mode will shut off the LED backlights on the LCD, but unfortunately
it also ups the level of brightness for the LEDs on the controls. That would
seem to be a simple fix in the firmware.
Al WA6VNN
In a message dated 4/27/2008 7:06:34 A.M. Pacific Daylight Time,
[EMAIL PROTECTED] writes:
I increasingly like to operate remote, especially when traveling.
This can sometimes mean that the rig is turned on for several days.
I have some concern about burn-out of the LCD display in areas where
it remains unchanged for long periods.
Maybe this is an unjustified worry, but it would be good to have the
option to simply turn off the display when using remote operation, or
even when operating the rig from a PC in the shack.
Bob, G3YIQ
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Emails are not formal business letters, whatever businesses may want.
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