If you get to the point you would like someone to look at it, you are more than welcome to send it me and I will check it out.![]()
From the schematic (once again, not my forte), it looks like there should be direct electrical continuity between U5 Pin 1 and U6 pin 5.
Is that correct?
I used a (cheap) digital multi-tester on the chip pins and there was no continuity between U5 Pin 1 and U6 pin 5. That appears to be the direct data path from the input port to the PIC, so I think that would explain everything I am seeing.
I will visually inspect the board and reflow those solder joints and see where that gets me.
Shunt should be on JP2
Did you re-flash the PICs w/ Renard Firmware? So they are not running the Diagnostic firmware>
Matt
I currently have the diag firmware running but I have gone back and forth several times.
I don't think data is getting to the PIC, so I am monitoring SD LED which the diag firmware should flash when the board is getting data.
Yes, what you have there is correct for RS232
Not sure if you are using it, but here are the instructions for the Diagnostic firmware.
http://doityourselfchristmas.com/wik...e_Instructions
I resolved the problem.
As noted in post 14, there was no continuity between U5 Pin 1 (output from incoming communications) and U6 pin 5 (incoming communication to the PIC) which should be a direct connection.
I inspected the solder joints and some in the area looked sketchy so I reflowed all joints on U4, U5, and U6. That gave good continuity. When I tested, it all worked.
Thank you James and others who helped me with this issue.
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