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#16 jeebowhite

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Posted 26 December 2013 - 08:14 PM

Its always worth a try redoing the old board with new solder joints, you have nothing to lose!



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#17 neutrino

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Posted 27 December 2013 - 12:42 AM

Yes, I am unmounting pannel, but I don't know how remove pointers of instruments. It is necessary to acces on bottom side of PCB (to solder connector pins). I tried to pull, but nothing...I suppose it is not a good idea...I found in other topics other models and procedures, but nothing fitted to my model..

 

Could anyone help me? 

 



#18 neutrino

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Posted 27 December 2013 - 01:26 AM

I FOUND !!! Is necessary pull pointer from base. I used 2 knife as shown in this picure. I rotated knife in opposite spin together. Is verey important take a mark on pointer direction and position. 

My english is orrible and I am very happy if someone could take some corrections.

 

http://imageshack.co...0/5601/p0d9.jpg



#19 jeebowhite

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Posted 27 December 2013 - 12:59 PM

Matteo, your english is fine dont worry, it all makes sense :)

 

Just come back and tell us you fixed it and we will all be happy :)

 

even happier still if you do a step by step on what you did, and if you do fix it, feel free to share the step by step :P might save a lot of people a lot of money and we might all owe you a beer at some point :P



#20 neutrino

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Posted 27 December 2013 - 01:24 PM

I am very happy to give help to someone. When I met this group, many users as you gave to me help. So at the same way, I am very happy to do the same things.

 

I'll back soon with step by step photo :-)

 

Regards

 

p.s. If i'll resolve this problem, I'll owe a beer at some point to you and all forum users :-) 



#21 jeebowhite

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Posted 27 December 2013 - 08:09 PM

I look forward to hearing success!



#22 Stoney871

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Posted 27 December 2013 - 09:40 PM

I'm sure you speak our language better than we could speak yours :D

#23 jeebowhite

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Posted 27 December 2013 - 10:31 PM

Thats guaranteed for me! and to be fair, you speak our language better than half the teenagers in our society! :P



#24 neutrino

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Posted 30 December 2013 - 09:57 PM

GO !!!! I resolved !!!! Panel works fine !!!!! These are steps that I did:
 
DISCLAIMER: I do not recommend people to do this. I am not responsible for the consequences of any actions taken on the basis of the information provided. What follows is done by professionals with professional instruments, according to the state of the art.
 
1. Unmount Panel (until electronic board).
 
2. Resolder every component, connector, even microcontroller (with cold air welder). I did this with professional welder, temperature stabilized. I don't touch led solder, because is very easy damage it not instantaneously. Even microcontroller is a delicate point.
 
3. Clean surface of board. 
I read many article of people that use chemicals to clean board. This is a very delicate step, because electronic board is covered by "conformal coating", that is a surface protection made from manufacturer at the end of product production. It's used for avoid that humidity pierce into board, components and connections. Its avoid even malfunctioning caused by humidity and condense. 
I don't advise clean board, but if strictly necessary is correct using a not aggressive materials with brush. 
I tried a well brand product know as contact cleaner in a corner of board. Conformal coating is removed totally. You can see this looking backlight. This could cause problems after. In general contact cleaner is a good thing, but not in this case (this is my opinion).
 
With this steps my problem is resolved and panel works fine. 


#25 jeebowhite

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Posted 31 December 2013 - 11:32 AM

Very well done! you just saved yourself a shed load of money!



#26 neutrino

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Posted 01 January 2014 - 05:35 PM

Yes, I was very lucky but even determined to resolve this problem.
 
A very big and decisive help come from this forum. I give a  very big thanks to jeebowhite, Stoney871, JW1982 and IINexusII for helped me. 
 
Thank you very much !!


#27 Stoney871

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Posted 01 January 2014 - 06:09 PM

We always aim to please.

#28 jeebowhite

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Posted 02 January 2014 - 01:44 PM

Hopefully you wont have the issue again! I need to try and get your guide up on the process that you sent me!



#29 neutrino

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Posted 02 January 2014 - 04:06 PM

Moderators can use that guide as they want. If you prefer, I can send a source power point to modify/correction or expansion.



#30 jeebowhite

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Posted 02 January 2014 - 04:33 PM

Anything is a bonus, PDF is the preferred form as it works best on the site and is universal, but the more information you can share, the more that other members can benefit!



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