| ??? 02/25/05 15:18 Read: times |
#88464 - Few hints Responding to: ???'s previous message |
The first sign appearing on the LCD screen is dark squares when you power it up.
If that is not the case, there are 3 possibilites. 1) You applied power to wrong pins. 2) Your contrast voltage setting is not correct. 3) Your LCD is dead at all. If none of above, your power supply is not good. A guess. If your LCD has a DIL header/connector and you tried to solder a DIL header (in order to use ribbon cable), there is a chance that you soldered DIL header on opposite side of PCB resulting in even and odd pins swapped. Many LCD manufacturers don't care if you will have to solder the DIL header on top or bottom, they just make their own life easy. |
| Topic | Author | Date |
| LCD hardware problem? | 01/01/70 00:00 | |
| asking too much | 01/01/70 00:00 | |
| Not Too much | 01/01/70 00:00 | |
| how do they fo that | 01/01/70 00:00 | |
| How they do that | 01/01/70 00:00 | |
| Not sure but... | 01/01/70 00:00 | |
| 44780 | 01/01/70 00:00 | |
| Keil uVision2 DLLs | 01/01/70 00:00 | |
| Keil uVision2 DLL | 01/01/70 00:00 | |
| Do following steps! | 01/01/70 00:00 | |
| Few hints | 01/01/70 00:00 | |
| LCD simulator | 01/01/70 00:00 | |
| Where is assembly code LCD simulator? | 01/01/70 00:00 | |
| proteus5.2,from www.proteuslite.com | 01/01/70 00:00 | |
| 5.2? | 01/01/70 00:00 | |
re | 01/01/70 00:00 | |
| proteus5.2,from www.proteuslite.com | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 |