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Reply to "Design of a $10-20 DCS-TIU Port Tester Tool?"

GGG posted:

Did you put the green LED in the wrong spot?  Testing TIU while still attached to the layout or even a test track with lighted lockon will effect results.  Test TIU stand alone.  G

GGG and STAN2004,

I installed the LED's in the correct place, the problem is when I wrote the post I meant to say the red light flashed and the green light wouldn't flash. My bad!

After re-reading all the posts I decided to calibrate the tester to my home layout TIU. I have one Variable channel that I never have used so I assumed that channel was good. Set that channel to fixed and re-caled  the tester so both LED's flash when sending a command. Interestingly I only had to turn the pot about 10 deg CCW from its previous position. Checked the other three channels (unhooked from layout) and everything tested good.

Now to check our club's TIU's which we have been having a number of problems with.

Ken

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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