I think I broke my SS24

[Wayne J]

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.

[Jerry-Rigs]

Using RS232, did you place a shunt on JP1?

Yes,
JP1 is shunted
JP2 is open
JP3 is shunted

[Jerry-Rigs]

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.

Thank you. I am close but not there yet. I have a couple more things to try first.

I predict it is something simple that I am overlooking and I will be embarrassed when it is solved.

[Jerry-Rigs]

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.

[Wayne J]

Shunt should be on JP2

[Ruppro]

Did you re-flash the PICs w/ Renard Firmware? So they are not running the Diagnostic firmware>

[Jerry-Rigs]

Shunt should be on JP2

When you say shunted, should the jumper between the pins be installed or left off?
I am using a USB to RS232 converter and connecting to JDP1.

The wiki says:

RS-232 Communication (direct connect to PC)
JP1 installed
JP2 not installed

[Jerry-Rigs]

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.

[Wayne J]

When you say shunted, should the jumper between the pins be installed or left off?
I am using a USB to RS232 converter and connecting to JDP1.

The wiki says:

RS-232 Communication (direct connect to PC)
JP1 installed
JP2 not installed

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

[Jerry-Rigs]

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.