Hi,
Have you got a DMM?
If you do, can you check and see what DC volts you have between gnd and the output pin of the UNO that has the servo signal on it.
If you don't, I would suggest you get one, even an el-cheepo $20.00 will do the job.
Tom.... 
Hi,
Have you got a DMM?
If you do, can you check and see what DC volts you have between gnd and the output pin of the UNO that has the servo signal on it.
If you don't, I would suggest you get one, even an el-cheepo $20.00 will do the job.
Tom....