Re: [CAD_CAM_EDM_DRO] CNC controller 9" monitor replacement?

Hi Les;

My experience has been more or less the opposite, especially on machine
tools subject to shock. LCD's do seem to be more durable on these
sorts of machines. Further almost all CRT's degrade signifcantly over
time and suffer from burn in. LCD screens however can and do have
varing types of light sources some of which are easy to replace.

Now this is not to say that LCD's are perfect as I have noticed other
failure modes with LCD's. One being the light source which is often
replacable. Another being power supplies. It is certainly a case of
different weaknesses.

Dave


Les Newell wrote:

>For industrial use, CRTs are brighter and longer lasting than LCDs. The
>light source in an LCD has a limited life span. As they age, their light
>output drops significantly. I have seen quite a few older machines with
>LCDs that are nearly unreadable because the light source has degraded.
>
>Les
>
>eferg2001 wrote:
>
>
>>I purchased a used Omniturn CNC retrofit on a Hardinge lathe. The
>>controller has a built-in 9" VGA monochrome monitor. It is usable,
>>but the CRT is burned quite a bit. A replacement is $350.
>>
>>I would like to install a LCD VGA computer monitor, but can't find a
>>9" version. Any ideas? I would hate to go with an external monitor.
>>
>>Ed
>>
>>
>>
>>
>
>
>
>
>