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04-23-2003, 12:40
| #1 (permalink) |
| Freak Poster  Join Date: Apr 2001 Location: Romania , Petrila Age: 50
Posts: 161
Member: 3976 Status: Offline Sonork: 1577069 Thanks Meter: 8 |  6210 keypad problem Please helpmy repair 6210 keypad problem .No working key 6,7,8,*,0,#, vol up,cancel ,stop call and down.In manual service is col 3 and 4.pcb is ok testing mad to keypad ,v450 is ok changeit and r301 is ok testing.Have any idea to repair ?  |
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04-23-2003, 14:32
| #2 (permalink) | |
| Freak Poster Join Date: Jul 2002 Location: Croatia Age: 49
Posts: 499
Member: 14004 Status: Offline Thanks Meter: 6 | Re: 6210 keypad problem Quote:
Clean your board well, measere resistance between keypad contacts on working keys and compare it with resistance on non-working keys. You maybe have some passive ressistance between ROW and COL line. (it can be from water damage, or dirt)... Post here the results! | |
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04-23-2003, 22:49
| #4 (permalink) | |
| Freak Poster Join Date: Jul 2002 Location: Croatia Age: 49
Posts: 499
Member: 14004 Status: Offline Thanks Meter: 6 | Quote:
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04-23-2003, 23:18
| #5 (permalink) |
| Freak Poster Join Date: Apr 2001 Location: Romania , Petrila Age: 50
Posts: 161
Member: 3976 Status: Offline Sonork: 1577069 Thanks Meter: 8 | Soldering is 100% ok i measurament is *** measurament key to mad maibe mad is bad no sodering and change mad is not posibility  ( have glue. tnx for help. |
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04-26-2003, 12:23
| #6 (permalink) |
| No Life Poster   Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51
Posts: 721
Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3 | Hiya Try to reheat MAD2 thru board, not directly chip....And put alots of flux on it... DO NOT exceed 220 degrees temp !! BR Vule |
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