HP-71B LCD Problem! How Common?

[Namir]

(02-17-2019 08:24 AM)Raymond Del Tondo Wrote:  

(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

Thanks for the information.

Namir