Does Cisco 796, 7941, 7940 Screen is supposed to have Back light 1

[serge9]

Hello Gens
Does Cisco 7961, 7941, 7940 Screen is supposed to have Back light
the contrast is ok, i can adjust the conteaste to darker or lighter
but if there are no light in the room, the screen has no back light

if there is back light, how can i turn it on?


i have Cisco 2811 (revision 49.46) 249856/12288k bytes of memory
running CME
bootstrap, Version 12.4(13r) release software (fc1)

Thanks a million

 

[whykap]

No backlight on those. They are the older discontinued models, the contrast adjustments is as good as it gets

 

[serge9]

Thank you whyKap, i was going crazy trying to find out why there is no back light while any regular cheep phone with a display ( that was bought within the same time period) emit a screen back light

Thanks
Serge9