Prestigio PMP3084B Product Service Manual page 13

Prestigio PMP3084B/BRU
Screen shot of circuit and PCB diagram, check there are or not short circuit and bad soldering happen to FPC.
6.Touch Screen
Abnormal cases：
6.1. Touch screen turns insensitive.
6.2.Touch screen loose functionality completely.
Resolutions：
6.1 Touch screen turns insensitive.
1. Calibrate the touch screen following the operation tips.
2.Replace a touch screen for a comparison to find out the problem. If it is the touch screen that is wrong, replace
it.
3. Update the system.
6.2. Touch screen loose functionality completely.
1. Press RESET button to restart the system or the device.
2. Use another touch screen for a try to get rid of problems of touch screen.
3. Update the system.
As for the problems, refer to the following circuit diagram or location diagrams for detail.
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