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Samsung Hardware Repair Post here your Hardware Repairing Hints or Problems with Samsung Phones. |
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06-02-2008, 23:58 | #1 (permalink) |
Freak Poster Join Date: Nov 2000 Location: Croatia Age: 47
Posts: 353
Member: 2466 Status: Offline Thanks Meter: 10 | D600 keypad problem by LCD pcb??? I tryed to put this main pcb in another good D600, and all keys works ok, then I put flat and arrow keys pcb from bad to good D600 and keys works! Now I know that the problem is in LCD board! On good D600 keys don't works too with LCD board from bad D600. I cleaned LCD board, resolder it, and removed 4 varistors but still the same. Maybe the problem is in small ic near flat connector? Does anybady have full schematic diagram of D600 because I have one without LCD board on it Anybady have idea hov to solve this problem? |
06-05-2008, 07:45 | #5 (permalink) | |
Freak Poster Join Date: Nov 2000 Location: Croatia Age: 47
Posts: 353
Member: 2466 Status: Offline Thanks Meter: 10 | Quote:
Upper pcb is in one piece with LCD wich is good, so is too expencive to change it for that old phone. Maybe the problem is in flex cable connector, but under the microscope connector looks like new one. I think the problem is on electornic circuits on upper pcb, and I don't have schematic for lcd pcb. Any idea what is the function of smal black ic near flat connector? | |
06-06-2008, 03:14 | #6 (permalink) | |
Freak Poster Join Date: Aug 2007 Location: GSM-FORUM
Posts: 100
Member: 575419 Status: Offline Thanks Meter: 459 | Quote:
where is this ic... ? | |
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