I had to replace the M1 MHF4 connector on em20-g PCB because it was damaged. After I got it from the repair shop, I tested for continuity on M1 between the inner pin and outer ring and there was current flowing. I used ohmmeter set to 200. Should there be current between the two, or did the tech create a short when he soldered the new connector? If someone has this modem, can you please test it and let me know? Weird thing is I tested M2 and it also had the current flowing like M1, and M2 wasn't replaced.
I'm freaking out now.
Help! Question about continuity on M1 mhf4 connector on em20-g
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BillA
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Re: Help! Question about continuity on M1 mhf4 connector on em20-g
It's normal to have conductivity between the middle and ground, since it's bridged with a filter. Unlike AC/DC, radio waves travel through this circuit just fine. That soldering job looks pretty rough/amateurish, but it doesn't look like it's shorted out. Just test the download speed which should tell you if there's a problem.
