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Samsung Hardware Repair Post here your Hardware Repairing Hints or Problems with Samsung Phones. |
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03-21-2013, 09:58 | #1 (permalink) |
Junior Member Join Date: Sep 2007 Location: **** off
Posts: 38
Member: 599288 Status: Offline Thanks Meter: 3 | Samsung P1010 touchscreen solution. I have a strange problem with Samsung Galaxy Tab P1010. The problem is touchscreen not working at all. What I did already:change touchscreen,rehot mainboard,reball touchscreen IC U802,replace touchscreen connector on board. Always I rehot the U802 IC touchscreen working excellent for about 12-24 hours,then again no response at all.I have raballed that IC 3 times,probably problem is inside the IC but I can find this IC nowhere to buy. The biggest question is:does anybody know is this U802 IC compatible with any other Samsung board?(except P1000-it is same). Many thanks for any help Regards Karel |
03-22-2013, 11:21 | #3 (permalink) | |
No Life Poster Join Date: May 2011 Location: gsm-forum
Posts: 4,148
Member: 1573913 Status: Offline Sonork: hardware illustration Thanks Meter: 7,629 | Quote:
samsung gt-P1010 touchscreen first: check regulator U800 if this U800 does not work U802 also does not work check working voltage U800 at C809 and L801 check vout U800 in C810 and C811 if the touchscreen is still working on components like the original check working voltage U802 at C805 .... C806 .... C807 and C808 check touchscreenya lines: TSP _ SDA at R803 TSP_SCL at R804 TSP_INT at R802 see the picture below (the position of the component on the pcb) only thank button | |
03-22-2013, 18:00 | #4 (permalink) |
Junior Member Join Date: Sep 2007 Location: **** off
Posts: 38
Member: 599288 Status: Offline Thanks Meter: 3 | Thank you for reply. I have checked these solutions step by step already.I am almost sure problem is in U802 and my question from my first post was about compatibility that IC. Anyway thank you for your time Regards Karel |
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