First time PIC was programmed.
Assumed starting address of 1.
Ran LSP, used manual HW screen to turn on channels 1 thru 4. No lights came on.
Tried to program a starting address.
Re-tried manual HW screen to turn on channels.
However, no blinky, no flashy.
Substituted LE controller in place of SSR4 - got channels 1-4 to work fine.
Reprogrammed PIC (with PICkit 2 - verified OK)
Haven't re-tried SSR4 since re-programming PIC, I think.
Get a brief "flash" on channels when plugging in SSR4 to AC, or sometimes when unplugging AC power.
To verify jumpers - for DMX operation: C/S jumper - on C and middle post. No termination jumper. S jumper left out. Last jumper in "operate" position.