If you are looking for the connection line paths of the Nokia 2720 fold volume up and volume down control button switch, here we show the complete circuit connection of the said two volume control button switches.
This solution is a big help especially for a damaged or already lifted solder pads of the switches terminals.. or already been replaced a damaged button switch but still it doesn't work and fix the problem.
The solution below shows the connection of the Volume Up and Volume Down button switch of Nokia 2720 fold. Refer to it and use it as your tracing guide to troubleshoot a not working volume button keys.
Nokia 2720 fold Volume UP(+) and Volume Down(-) Button Switch Connection Tracks
The two button switches share a common connection on its two upper terminals, which is connected directly to the keypad filter IC.
The lower terminals is Voume Up is also associated or connected to 0, 8, 5 and 2 keypad keys. While the Volume Down is connected to *, 7, 4 and 1 keypad keys. So, if also happens that those keypads keys doesn't work, it means that your problem may possibly lies on the filter IC.
You can check and trace this line paths using a multimeter. Then managed to apply a jumper wire if the said connection has been cut-off. Hope this helps in repairing volume control problem on Nokia 2720 fold cell phones.
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