Genuine DoorKing 1902-010 display board — the single-line, 16-character LCD display board for the 1802-EPD telephone entry system with the electronic directory (1802-090). It replaces the earlier 1900-010. The display shows the scrolling resident directory and the programming prompts; if it is dark or garbled while the unit still dials and opens the gate, this board is the part.
Match the display to the unit. The 1802-EPD uses this 16 x 1 display. The 1802, 1803 and 1810 use the 8-character 1890-010; the 1834 / 1835 directory display is the 20-character 1891-010. In a cold climate the 2600-582 LCD heater kit stops the display fading in winter.
Specifications
| Part number | 1902-010 |
|---|---|
| Replaces | 1900-010 |
| DoorKing description | PCB, LCD display, single line, 16 character |
| Fits | DoorKing 1802-EPD (1802-090) |
| Condition | Genuine DoorKing, new |
Is the board actually the problem?
The board is the most over-ordered part on a telephone entry system. Work down this list before you buy:
| Symptom | Check first |
|---|---|
| Display dark, unit otherwise works | This board, after checking its ribbon cable |
| Display dark and the unit is dead | The 16.5 VAC transformer and the low-voltage surge suppressor before anything |
| Display faint or slow in cold weather | The LCD heater kit, not the board |
| Garbled characters | The ribbon cable, then this board |
After fitting
Check the directory scrolls and the programming prompts read correctly before closing the faceplate.
Related
1802 parts · all DoorKing phone entry parts
Not sure which board you need? Send a photo of the number printed on your existing board to parts@gatehousesupplies.com or call 866-965-5599. We would rather confirm it than have you fit the wrong board.
