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About GPS module L80 and SKG-13C

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prabhukaran3

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Hello everyone,
Happy to see you after long time. Now I am working with GPS modules L80 and SKG-13C...

I only designed the PCB board and schematic. Schematic is same they were used in datasheet. My problem is when I gave power (3.3V) to the board nothing happening. 1PPS pin remains same( about 0V)... Vbackup is connected to VCC

I thought Power supply issue. But I am not more confident in that.. Seems it is a simple hardware. But its killing me.. Expecting your valuable feedback
 

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