|These segments, these digits|
Message #5 Posted by Mike on 15 Jan 2001, 1:46 p.m.,
in response to message #4 by Viktor Toth
On digit 1, segments a, f and g are lit. These are lit slightly dimmer than what would normally be on.
On digit 11, segment e and g are lit. normal brightness.
If I press keys, some segments go off some do not.
If I press '.', '1', '4', or '7' as the first digit, all these segments go off. But pressing other keys turns one or more back on.
The board is very clean; no apparent oxidation or shorts.
I think I'm going to remove the driver chips tonight and 1) look under the chips and 2) look for shorts between leads.
But I don't think I will find anything.
I do also find that if I disconnect the CPU board, that these two digits still have segments on but at a much brighter level.
I think some basic troubleshooting will lead to the solution. I just wish it were easier to remove the parts.