i have purchased two of these off of Amazon. I’m using a regulated 13.4v dc power supply. Both units output 1.26-1.29 volts regardless of how much I turn the trim pot. I have turned it twenty or thirty turns in both directions. What am I doing wrong?
Hello Wes,
Thanks for writing in.
To check what problem is, would you please take a testing video to let us check the problem more carefully? And did you operate it without load?
You can send video to service email(service@droking.com).
Wait for your reply.
Best regards.
Wes
