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Glory_Cloud
Joined: 24 Jul 2010
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 Posted: Wed Jul 13, 2011 9:41 am Post subject: |
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Exact same thing happens when you use a heat gun.  |
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xhoba
Joined: 20 Apr 2009
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Location: Picardie, France
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Neology
Joined: 25 May 2011
Posts: 2412
Location: VIC, AU
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| Posted: Wed Jul 13, 2011 10:45 am Post subject: |
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| Neon_WA wrote: | let me know what the FPO code is L41????
quite often the print sticks better to silicon glue than it does to the gold surface.
No matter what you do.. in the end it is lucky of the draw |
Yes, It is L41
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Neology
Joined: 25 May 2011
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Location: VIC, AU
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| Posted: Wed Jul 13, 2011 10:48 am Post subject: |
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| Chook wrote: | That type of glue is one of the worst types. Its very hard to remove it without removing the print and I've never been able to remove all trace of the glue. The circular mark always remains.
The white epoxy type glue is much easier to remove with metho and there is good odds of the print remaining intact. |
Yep, the white epoxy glue is better.
I've got few SX957,SX958 with heat sink uses such glue, it is much easier to remove the heat sink without damage the label.
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Last edited by Neology on Wed Jul 13, 2011 10:55 am; edited 2 times in total |
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Neology
Joined: 25 May 2011
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Location: VIC, AU
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| Posted: Wed Jul 13, 2011 10:50 am Post subject: |
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| Glory_Cloud wrote: | | Exact same thing happens when you use a heat gun. |
I think the label had already stick on the glue. No matter what method you use, the label would not stay on the gold surface
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Neology
Joined: 25 May 2011
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Location: VIC, AU
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| Posted: Wed Jul 13, 2011 10:53 am Post subject: |
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| xhoba wrote: | | Concerning this kind of circular mark, I have successfully removed it using a simple rubber! |
I think the glue had kind of chemical reaction with the ceramic. The glue can be easily removed by a rubber, however the color difference is noticeable.
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Wed Jul 13, 2011 12:39 pm Post subject: |
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steel wool will remove the pink mark on the ceramic (use a fine kind)
I also have some glass polish (like toothpaste almost) that works well.
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Marcin
Joined: 02 Jan 2005
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| Posted: Wed Jul 13, 2011 1:37 pm Post subject: |
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njfn please provide a picture after cleaning with your method - rubber. Thanks
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Neology
Joined: 25 May 2011
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Location: VIC, AU
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| Posted: Wed Jul 13, 2011 2:24 pm Post subject: |
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| Marcin wrote: | | njfn please provide a picture after cleaning with your method - rubber. Thanks |
even the rubber could clean some of glue, but the circle is noticeable at all.
I said, the glue could have some chemical reaction with ceramic, therefore there's nothing i can do with it.
If you go to chipdb, you can also see the SX909 has a obvious circle mark on the chip
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max3
Joined: 20 Feb 2010
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Location: DREAM LAND
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| Posted: Wed Jul 13, 2011 3:37 pm Post subject: |
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very nice report.
thanks.
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Neon_WA
Joined: 08 Nov 2008
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Location: Margaret River, West Australia
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| Posted: Wed Jul 13, 2011 6:17 pm Post subject: |
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| njfn wrote: | | Neon_WA wrote: | let me know what the FPO code is L41????
quite often the print sticks better to silicon glue than it does to the gold surface.
No matter what you do.. in the end it is lucky of the draw |
Yes, It is L41 |
but what is the rest of the FPO number ?
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Neology
Joined: 25 May 2011
Posts: 2412
Location: VIC, AU
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| Posted: Thu Jul 14, 2011 12:01 am Post subject: |
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| Neon_WA wrote: | | njfn wrote: | | Neon_WA wrote: | let me know what the FPO code is L41????
quite often the print sticks better to silicon glue than it does to the gold surface.
No matter what you do.. in the end it is lucky of the draw |
Yes, It is L41 |
but what is the rest of the FPO number ? |
Sorry,
The FPO number is L4193102-0381
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johnorun
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Neology
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