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snipe05

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Posts: 3
Reply with quote  #1 
This is my first attempt at assembling a PCB so I hope I did everything correct.

I have a unit I just assembled and as far as I can tell everything is correct.  I have powered it with 12VDC but it does not seem to power on.  No lights come on when powered up (not sure if this is normal or not) but when I press LEARN and the corresponding button on the remote nothing seems to happen. 

In pic 2 the only thing I noticed as a potential issue is that I ONLY soldered from the back of the board and not the front. Is this something that I should do?  Is this why I cannot get it to connect?

Also in pic 3 I decided to solder the resistors in this location on the back due to not fitting easily under the 2 chips on the front.  I figured it should be OK.

Any suggestions on what could be the problem?

EDIT:

I have done some testing and it seems like the LEARN button is not working, I used a multimeter to test for s circuit when I press the button and I have nothing at all.

DSCN2847re.jpg  DSCN2848re.jpg  DSCN2850re.jpg

snipe05

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Posts: 3
Reply with quote  #2 
Solved the problem, the LEARN button is defective.  I just shorted pin 7 on RF unit to ground to activate LEARN and solved the issue.
Frank

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Posts: 1,889
Reply with quote  #3 
Unusual that the button would be faulty. Check that the button has been inserted in the correct orientation. From memory it is possible to insert them rotated by 90 degrees, albeit with a bit of difficulty.
snipe05

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Posts: 3
Reply with quote  #4 
The way that the button fits in it can only really go in 1 of 2 ways and from what I can tell it would work either way since the pins are in a rectangular pattern.  I also confirmed with a multi-meter that there is no circuit on any pins when pressed.
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