JayCar Ultrasonic AntiFoul magic box - no go

[caddienz]

Question if I may. I have assembled the unit very carefully.
When I apply power the red LED lights up for about 15 seconds then goes out.
If I turn the unit off for say 10 seconds and repower on the red LED will not light up. Wait say 1 minute, the lights up for the same 15 seconds then goes out.
If I run a voltage meter over the power supply – starts with 11.9 volts – drops to 11.7volts while the red LED is on, then when the LED goes out the power raises back to 11.9 volts.
Reading the instructions – could it be an adjustment of the VR1 and VR2? I do not have technical know-how to test this I am thinking.
Any advice/thoughts most appreciated. Thanks

 

[Champagne Murphy]

Have you read this thread?
http://www.ybw.com/forums/showthread.php?258391-Building-the-Ultrasonic-Antifouling-Kit-from-Jaycar
Just about everything you need are in there I reckon.

It’s not short though. See you in a day or two!

 

[Norman_E]

All of my original photos on the long build thread were lost when Photobucket stopped allowing third party posting, and I then deleted my Photobucket account. I now find that a lot of my original photos are corrupted, however there is a good one of the circuit board with all components except the two integrated circuits in place.