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Turnigy 9X 9Ch Transmitter "BUG"
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Kapitany View Drop Down
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Posts: 160 		  Quote Kapitany Quote  Post ReplyReply Direct Link To This Post Topic: Turnigy 9X 9Ch Transmitter "BUG"
    Posted: 13/Feb/2011 at 12:37am
Hi Hobbyking!!!
There are very strange "bug" at version 1 and 2 trasmitters!!!

After power on Turnigy 9c system, with all adjusted servos (at any temperatures), after 10 minutes they lost default settings approx 5 degree (visually you can see it at bigger marked clock background)! It you can see only at putting long wire on servo arms and marked default position!. This problem very bad at fine adjusting helicopters servos!!!
We think, it about to long working temperature time attainment. If system is heat not more problem!!! But time for it is to long.

Please help us to resolve this problem!!!
Thanks.

Kapitany
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Posts: 160 		  Quote Kapitany Quote  Post ReplyReply Direct Link To This Post Posted: 22/Feb/2011 at 12:39am
Hi GuysSmile

Today I can put pictures about Turnigy 9C 9Ch trasmitter "bug"
Thanks for JpparisySmile. You can see pictures about testing at this link:

http://img819.imageshack.us/g/turnigy9c15.jpg

Kapitany
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jcer93705 View Drop Down
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Posts: 241 		  Quote jcer93705 Quote  Post ReplyReply Direct Link To This Post Posted: 24/Feb/2011 at 1:19pm
Originally posted by Kapitany

Hi GuysSmile

Today I can put pictures about Turnigy 9C 9Ch trasmitter "bug"
Thanks for JpparisySmile. You can see pictures about testing at this link:

http://img819.imageshack.us/g/turnigy9c15.jpg

Kapitany

Do you know maybe you just got a bad radio? Have you tried other module 
and receiver maybe frsky?
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Kapitany View Drop Down
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Posts: 160 		  Quote Kapitany Quote  Post ReplyReply Direct Link To This Post Posted: 26/Feb/2011 at 12:49am
At our Hungarian forum, very must replies about Turnigy 9C transmitter!!!

Problem, about I write, detect some of hungarian users. (but not all). A most of problem only with factories default "Turnigy Modul". We only just do new order, FR-SKY modul for testing this problem. Our engineers friends, say, that is about default impulse generator which have't quartz in system!!!

Please dear friends, who detect some problem, tell for us about your ideasClapClapClap

Thanks

Kapitany
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jpparisy View Drop Down
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Posts: 349 		  Quote jpparisy Quote  Post ReplyReply Direct Link To This Post Posted: 26/Feb/2011 at 4:06am
The ATMega64 is driven by a 16Mhz quartz, which is fairly more stable than the voltage regulator.
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Kapitany View Drop Down
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Posts: 160 		  Quote Kapitany Quote  Post ReplyReply Direct Link To This Post Posted: 26/Feb/2011 at 5:18am
Hi Jpparisy,

This problem, generated not from voltage regulator. (say it our engineers friends at Hungarian Topic). It about no quartz stabilised clock generator for this unit.

Can you see my pictures?
Next time we do test with FR-SKY modul. Just do order for this.
Can I found you at "Facebook"?

All sent mails to you, return to me, why?Unhappy

Best regards.

Kapitany
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Posts: 349 		  Quote jpparisy Quote  Post ReplyReply Direct Link To This Post Posted: 26/Feb/2011 at 10:10am
Originally posted by Kapitany

Hi Jpparisy,

This problem, generated not from voltage regulator. (say it our engineers friends at Hungarian Topic). It about no quartz stabilised clock generator for this unit.

Can you see my pictures?
Next time we do test with FR-SKY modul. Just do order for this.
 
You can see in this picture that the TH9X has two voltage regulators (red circles), and a 16Mhz quartz (black oval) used as clock generator:
 
 
Other components on PCB are pullup resistors or filter capacitors.
 
As you have engineer friends, send a faulty transmitter to one of them and ask him or her to measure acurately the drift of the voltage regulators (at least 20 000 points) and the frequency shifting of the quartz (at least 8 digits), over time and temperature.
 
Also, ask him or her to measure the drift voltage at the three points of the stick potentiometers, shown in red ovals in the following picture:
 

Originally posted by Kapitany

Can I found you at "Facebook"?

No.

Originally posted by Kapitany

All sent mails to you, return to me, why?Unhappy

Don't ask to me, but to your Internet Service Provider administrators why the mails I sent you are rejected as spam. If they don't know, tell them that the Iliad group is the second French ISP, having approximately 10 millions subscribers.
 
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Posts: 349 		  Quote jpparisy Quote  Post ReplyReply Direct Link To This Post Posted: 27/Feb/2011 at 5:18pm
Originally posted by Kapitany

Hi GuysThumbs Up

Yesterday we do transmitter measurementSmile
There aren't drift at voltage regulators! Problem with factories default Turnigy 2.4GHz module!!!
We changing it with other Fly-sky 2.4GHz modul (it same what turnigy), the servos moved out from default position only a little bit, 1 grade after 10 minute.
Module have voltage regulator which is some hot , approx 50 c. but stable! There are quartz in module too. So minimal drift can be about it in module too.

Best regards

Kapitany

(For Jpparisy, I talk with my Internet administrator about our mail problem. They working on it)  
 
Reading the official schema, I could say it was probably impossible, since all is processed numerically and the PPM decoder being a micro-controller driven by a 12Mhz quartz!
 
But...
 
Looking inside the module, I see Shocked that it doesn't correspond to the schematic, and that the quartz driven controller has been replaced by another, and no trace of any quartz for this one!
 
I think we begin to approach in finding the culprit. Unfortunately, I don't see how to correct this easily.
 
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jpparisy View Drop Down
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Posts: 349 		  Quote jpparisy Quote  Post ReplyReply Direct Link To This Post Posted: 27/Feb/2011 at 5:21pm
Something is wrong with the date marking of this forum, or I travel in the fourth dimension! LOL
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Kapitany View Drop Down
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Posts: 160 		  Quote Kapitany Quote  Post ReplyReply Direct Link To This Post Posted: 27/Feb/2011 at 6:58pm
Hi GuysThumbs Up

Yesterday we do transmitter measurementSmile
There aren't drift at voltage regulators! Problem with factories default Turnigy 2.4GHz module!!!
We changing it with other Fly-sky 2.4GHz modul (it same what turnigy), the servos moved out from default position only a little bit, 1 grade after 10 minute.
Module have voltage regulator which is some hot , approx 50 c. but stable! There are quartz in module too. So minimal drift can be about it in module too.

Best regards

Kapitany

(For Jpparisy, I talk with my Internet administrator about our mail problem. They working on it)  
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