DiyLightAnimation
Hardware => Lynx Express => Topic started by: mmccrae on November 10, 2012,
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I have one LE that is not responsive to computer control, on-board test runs great lights and LED's all light, data led is on, just no control from computer even with DMX-deck. I suspect one of the RS485 chips has gone bad, but it will accept programming from config tool on 1st channel??
Any other thoughts? I tested it alone on the dongle, and junpered correctly ( terminated and non-wireless)
Mike
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What output device are you using to control it. It only uses 1 RS485 for all input so if it is responding to the config tool, then it is receiving data.
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optoisolators (6-pin sockets labelled 3023) in backwards?
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Opso's are all in correctly and in the on-board test, light strings light up, and led's on all 16 channels.
Lynx USB dongle is output devise.
Thanks
Mike
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Last time I had something like that, I had the wireless jumper set.
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Jumpers are all set correctly
Thanks
Mike
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swap 485 chip from a working LE, to see if problem follows the chip
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If it were the 485, then it would not respond to the utility either. How are you determining that it is responding to the utility?
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I am able to program 1st channel and it is updating LED display from channel 001 after re-flash of pic to channel 097
Mike
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the LE, you can program via the onboard buttons
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While true, he said that he was using the utility to do it. I would reflash the PIC.
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noticed today when I went back to this today that the board is reading 50 hz when powered up.... should read 60 hz in Texas
tried the comments from RJ in the post: http://diylightanimation.com/index.php?topic=10071.msg137300#msg137300
all checks out. what else could make this happen??
re-flashed Pic also
Mike
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99% of the the time it's the chip near the fuses H11AA1
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Checked continuity in traces from H11AA1 and had to add two jumper wires to the resisters, but LE is up and running now.
Mike
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Thank you Thank you Thank you. Ive been trying to figure out why one of my 12 boards would not work. I have swapped chips form other boards and nothing. Then I start reading all the posts about problems and I see in many of them the word "JUMPER" Guess what i forgot to do on the one that doesn't work??? The Jumper for wireless was not installed. I even built my backup board at 3am today and it too failed because of the Jumper not being installed. My show is now 100%. DUGH
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Been there. Done that. Good to hear everything is working.