Tandy TRS-80 Model 100 Teardown

Hitachi HD44102 Dot Matrix LCD Column Driver Chip

There are several large Hitachi HD44102 Dot Matrix Liquid Crystal Graphic Display Column Driver chips mounted to the back of the display's PCB.

Photo by: Bill Detwiler
Caption by: Bill Detwiler

By Bill Detwiler

Bill Detwiler is Editor in Chief of TechRepublic and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop support specialist in the ...