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T15 not working
Posted:
Sat Mar 03, 2012 1:47 pmby Drew3450
So, my t15 Rev 1.4 module was working great for a few days. Now I get no signal through it. I just get some static when I turn the trim knob. I got +17.96V from J3 pin 2 to the +18, and -18.18V from J3 pin 2 to -18V. Also 46.6V, and .45V from J3 pin 2 to Conn 1 pin 1. 46.6V, and .43V for J3 pin 2 to Conn 1 pin 3. What do I need to do to get this thing working again?
Posted:
Fri Mar 09, 2012 6:16 pmby tpryan
Re-flow all of the solder joints. What happens?
Posted:
Tue Mar 13, 2012 2:51 pmby Drew3450
Im fairly new to electronic diagnosis. Is re Flowing just heating up the solder joints? or removing the solder and re applying it?
Posted:
Wed Mar 21, 2012 6:12 pmby pleasantbullet
Yes, re-heat the solder joints. There's a possibility that one of your solder connections did not have enough solder. So after a few days it came lose. Reflow the connections, and add more solder on joints that dont have a proper fillet.
I have two T15's, the first one worked fine. But the second one didn't. I took it out, reflowed each joint. And added extra solder to the weaker looking joints and voila, worked.
Hope You get it working.
-al
honourandarms.wordpress.com
Posted:
Tue Apr 03, 2012 4:05 pmby Drew3450
Thanks Al.
I reflowed the solder joints, but the same problem exists.
Posted:
Mon Apr 16, 2012 3:46 pmby tpryan
Snip out the 1512 and replace it. You can order small quantities directly from Mouser.
Posted:
Mon Apr 23, 2012 4:34 pmby Drew3450
Ok. Ill let you know when I have done that.
Posted:
Thu May 10, 2012 3:50 pmby Drew3450
Word!!! I installed the new 1512 and it works great. Thanks