How to troubleshoot a DEC Touch terminal when nothing appears on the screen?
If nothing appears on the screen of your DEC Touch terminal, first ensure all connectors on the terminal board are properly seated. If the issue persists, consider replacing the terminal board.
What to do if the screen display is distorted or jittery on a DEC Touch terminal?
If the screen display of your DEC Touch terminal is distorted or jittery, check the CRT yoke harness connector and reconnect it.
Why do keyboard LEDs stay on after powering up my DEC Touch terminal?
If, after powering up your DEC Touch terminal, one or more keyboard LEDs stay on, the issue may be with the keyboard or the terminal board. Consider replacing the keyboard or the terminal board.
General| Model | VT420 |
|---|---|
| Release Year | 1990 |
| Display Type | Monochrome CRT |
| Category | Terminal |
| Manufacturer | DEC (Digital Equipment Corporation) |
| Character Set | ASCII |
| Communication Interface | RS-232 |
| Connectivity | Serial |
| Baud Rate | Up to 38, 400 bps |
| Protocols | VT100 |
| Emulation Modes | VT100, VT52 |
| Power Supply | 120/240 VAC, 50/60 Hz |
Explains the different VT420 terminal models and their common features.
Provides methods for diagnosing and resolving terminal problems and running self-tests.
Details procedures for removing and replacing field replaceable units like the CRT and terminal board.
Guides on aligning and adjusting the VT420 monitor's screen and display characteristics.
Covers how to access, change, save, and recall terminal configuration settings.
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