| ??? 01/02/08 19:55 Read: times |
#148941 - Ground Symbol Responding to: ???'s previous message |
D.c. Van Warendorp said:
Your using a wrong symbol for ground. Use a thick line in stead of an arrow. I think you mean the wrong signal for Vcc, which should be a thick solid line. Also, some text indicating the voltage is useful. The capacitors used by the power supply have their polarity swapped. I am assuming 3 of the 4 capacitors on the out of your LM2940 are for decoupling. It would be a bit more clear if these were placed at the power inputs of the IC's they are decoupling. While they are electrically connected where you put them, they will need to be physically close (as close as possible) to the pins they are decoupling. Your RS-232 Rx is connected to the wrong pin on the DB-9, it should be connected to pin 3 for a standard DB-9 DCE connection. |
