Posts: 4,027
Threads: 172
Joined: Aug 2005
Hi, Larry;
I own two HP48G+ and one HP48SX. The newer HP48G+ (btw, the HP49G+ too) shows the same flickering you mention. Sometimes a set of vertical bars (Never horizontal bars), sometimes a full black screen, all in a flash. It seems to me that the newer LCD are more efficient, low-power devices. If you consider them as a bunch of small, tiny capacitors (one for each pixel), everytime you turn the calculator ON these capacitors re briefly charged. As they are more sensitive, as a consequence of the supposed better efficiency, they'll flicker easily than the earlier ones. That's why I actaully don't care too much for the flickering...
Just a guess, based on possible facts.
Cheers.
Luiz (Brazil)