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Old 04-26-2013, 08:27 AM   #1 (permalink)
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Default ZYX-S Not Initializing After Turning Off & Back On

I found a photo of someone elese ZYX-S maybe an older or earlyer version. Look at mine, where I have the text in Red, and the line pointing to the two what looks like diodes to me. They are soldered together on one end. And in the Example picture they are not. Both have same ZYX-S-1 marked on the board. I wonder if this is was a slip up thats whats causeing mine to malfunction?

Mines the darker blue, and the example one is a lighter blue.
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Old 04-27-2013, 07:20 PM   #2 (permalink)
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Any body got a working ZYX-S they willing to open up and snap a clear shot to the area in question?
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Last edited by RCHSF; 04-29-2013 at 07:29 AM..
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Old 05-03-2013, 07:01 PM   #3 (permalink)
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clearly they should not be soldered together. I'm going to check mine for that problem.
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Old 05-03-2013, 07:46 PM   #4 (permalink)
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Yeah I unsoldered and tested samething so I redid it like it was. It's a Dud!!!
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Old 05-03-2013, 08:56 PM   #5 (permalink)
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Not diodes, those are a couple of ceramic capacitors. As to whether or not the two should be shorted together, that is a question of what the actual circuit board traces are doing where they are soldered, and to which particular electrical node the two ends are supposed to be tied. If you can't tell by visual inspection, there is always the option to carefully remove them, clean up the circuit board pads, then again inspect, and/or use an ohmmeter, looking for connectivity.
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Old 05-03-2013, 10:41 PM   #6 (permalink)
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It appears to me by this photo (scroll down and zoom in) those caps are electrically connected.

http://www.rcgroups.com/forums/showt...512179&page=25
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Old 05-03-2013, 11:55 PM   #7 (permalink)
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Quote:
Originally Posted by dksia View Post
Not diodes, those are a couple of ceramic capacitors. As to whether or not the two should be shorted together, that is a question of what the actual circuit board traces are doing where they are soldered, and to which particular electrical node the two ends are supposed to be tied. If you can't tell by visual inspection, there is always the option to carefully remove them, clean up the circuit board pads, then again inspect, and/or use an ohmmeter, looking for connectivity.
+1
Those are capacitors. They are normally soldered on the board without touching, and I can't tell just by looking if they are actually connected in the circuit or not. If you have a multimeter you could check.
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Old 05-04-2013, 09:54 AM   #8 (permalink)
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though they may connect in the circuit they may be parallel or a series connection. No way to know but to restore it to original non connected form. You can send a pick of the connected form to tarot and see what they recommend.

Maybe the connected cap form caused an eprom program glitch enough to stop it from working properly again.
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Old 05-04-2013, 12:33 PM   #9 (permalink)
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I think this photo shows they are electrically connected. It also appears they are all just used to filter the regulator transistor to the right.

Although it is shoddy workmanship, I'm pretty sure this isn't causing your issue. What is the malfunction you're having?

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Old 05-04-2013, 03:02 PM   #10 (permalink)
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That's a good photo, Daddy. And I agree, it's unlikely the OP's problem is caused by the two caps touching.

OP, check your wiring. It's possible you have an unsecured or dirty contact, possibly on the tail gain or rudder signal cables (these are required for the ZYX-S to initialize).
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Old 05-04-2013, 06:18 PM   #11 (permalink)
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I haven't had any servos connected while testing this unit. Your saying the unit has to have servos, especially the tail servo connected? Does it need to sense the servos to initialize?
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Old 05-04-2013, 07:40 PM   #12 (permalink)
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Yes, connect everything after you've selected the servo configuration (analog/analog, analog/ digital, digital/digital).

Have you watched these video's? They helped me.

HK-450GT Flybarless Conversion - pt 1 - Introduction (6 min 18 sec)
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Old 08-09-2013, 04:15 PM   #13 (permalink)
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Quote:
Originally Posted by Dr. M View Post
That's a good photo, Daddy. And I agree, it's unlikely the OP's problem is caused by the two caps touching.

OP, check your wiring. It's possible you have an unsecured or dirty contact, possibly on the tail gain or rudder signal cables (these are required for the ZYX-S to initialize).

Tried it again, been working with it for a few days now. All new servos, so nothing should be dirty. Tired it diffrant ways to see if it would solve the initialize problem. No Joy!!!

I can enter the setup software setup every thing all seems to work. From the software point of view. Turn off the zyx-s unit, turn it back on and theres the flashing red, or blue light. I have to press the little set button everytime to get it to re-initialize. Now I'm trying to set it up with a set of 65HB servos, and the servos rock back and forth, ie turn clockwise, then counterclocwise on their own. I use a Jr 3500g tail servo, digital, set software for that and analog for the cyclics, tail servo works, but cyclic are crazy. I've tried all versions of the firmware, and both software apps.

I've read all the info I can find on this unit, and watched every video made.
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Old 08-09-2013, 06:55 PM   #14 (permalink)
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When I bind the ZYX-s with a Satt, useing the satt and dual male connector, I supply power via either ch 4, or 1. And satt is plugged into Rd port, and you know where the cable go's right. Anyways my DX8 says binding in DSM2 mode, which mode in software do ya'll select?....... I have tried them all on the zyx-s software.
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