Showing posts with label n78. Show all posts
Showing posts with label n78. Show all posts
Thursday, April 16, 2015
Nokia N78 keypad malfunction solution with keypad filter IC jumper ways solution
Heres a solution that may help fix and repair Nokia N78 keypad failure or malfunction. If you already tried to replace the keypad flex cable but the problem still exists, this solution below will show you the keypad filter IC that is being connected to eah particular keys within the keypad matrix.
You may trace each particular line paths for deep keypad repair troubleshooting.
N78 Keypad Filter IC connection tracks
Friday, April 10, 2015
Nokia N78 Earpiece Speaker No Sounds Repair solution
This solution show the two filter coils and ESD filters that needs to be check or by then replace if there is no audio sounds can be heard over the earpiece speaker On Nokia N78.
Ensure that the speaker is working fine before trying to check and replace those components showed on the solution picture.
Those components are composed of a chip filter coils and an ESD filter that looks like a resistor and mounted on the top left side of the PCB board.
Ensure that the speaker is working fine before trying to check and replace those components showed on the solution picture.
Nokia N78 Earpiece Speaker Problem Solution ( No audio sounds repair)
Those components are composed of a chip filter coils and an ESD filter that looks like a resistor and mounted on the top left side of the PCB board.
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