Replacing a display glass tube
Steps
- Desolder all the tube pins from the display board.
- Slide a utility knife between the board and the tube and cut or loosen the glue, then lift the tube; do not pry on the glass.
- Fit and solder the new tube.
Wear work gloves; the glass can shatter or the knife slip.
Systems
Related tips
- Meter checks on a display tube
- The display voltages to check
- How the Gottlieb fluorescent displays work
- Measuring voltages on a display board
- Meter check of the display board 7432
- Telling a bad display driver from a bad display tube
- How the System 80 fluorescent displays light
- Meter check of the UDN6118 display drivers
Source: Troubleshooting Gottlieb Displays (On Target technical newsletter, vol. 3 issue 7, 1982), Gottlieb "On Target"