HP-71B LCD Problem! How Common?

[Raymond Del Tondo]

(02-17-2019 05:59 AM)Namir Wrote:  How many HP-71B have you encountered where part of the LCD characters appear as intermittent vertical bars?

Hi, there were three units of which I remember that effect. One of them could be repaired by replacing the interconnection between the upper and lower half with a suitable piece from another unit.
The percentage of units with that effect was small, given the many HP-71B units which went over my desk, but the general problem stays.
Interesting that in all cases it was one of the later units with changed interconnection