Hello,
I’ve bought another SSC-32 board but when I’ ve powered it doesn’t work! 
The led switched off but I’ve verified with the tester that the current pass through the board.
When I’ve connected it with a computer using a serial cable the computer doesn’t find it!
I’ve used the same configuration of the second one board that it works!!!
Post a better description of the problem or better yet post images of your boards jumper settings and wiring so we can try to help.
This is the wiring and jumpers setting:
The board doesn’t work and it doesn’t recognize from the computer.
Unplug the servos, the servo power supply, and the DB9 cable. Plug in the 9vdc battery and turn the VL switch on.
Does the green LED come on?
No, the green LED is still turn off!!!
Check the 9vdc battery. Is it dead? Do you have a volt meter?
The battery it’s ok…it’s new! And I’ve verified it with a volt meter!!!
Please put the volt meter on the +/- by the baud rate jumpers and see if you read 5vdc.
Yes, i read 5vdc
Pull the chip from the socket and inspect for bent pins. Carefully reinsert it and test it again. The green LED is controlled from an I/O pin on the processor. You can also try putting the chip from the working one into the non working one to see if it’s the board or the chip. This is surprising…
is the board i suppose. In the working board both chip working!
Have you tried sending the VER command? Maybe it’s just the LED that is bad. This is very strange…
Yes, I’ve tried all command but lynxterm responde SSC-32 not found
I don’t think that it’s just a led problem!
I’ve alse changed the serial data cable but the result is the same!!!
Thanks for being a good sport. Can you try with your volt meter to read the voltage on pin 7 of the processor. It should be 5vdc.
Also pin 4 is the LED drive pin. It should be 0vdc.
Check these and let me know.
Yes, pin 4 0vdc, pin 7 5vdc
Gaaaa!
This makes no sense. If there is 5vdc from the regulator and pin 4 is low the LED should be on. Measure the voltage across the LED. (put the leads on either side) and tell me what you read. It should be 2.0vdc. Plus is closest to the edge of the board.
Well this doesn’t happen very often. But it looks as if we will need to replace this. Please contact your distributor and let them know we tried to sort it out, but it will need to be replaced. Have them contact us for more information. I was hoping we could find the problem.
Hi Jim,
this evening a try to measure the voltage across the LED.
I can’t raplace it I think because I’ve bought the board few month ago! It’s my fault…I’ve not tried the board immediately!!!
Hi Jim,
the voltage across the LED is 0.
Strange!!!
