My JRC Radar dome sweep arm does not rotate. I changed the steper motor and it still does not rotate. What should I do?

Question edited for clarity.
Question moved from Office Equipment category to JRC Radar.

The pulse generator is in the dome. Check all the connectors for corrosion. Help in the link and it is a common error. It sounds like you need a new 'professional'.

https://www.google.com/search?q=JMA+2213+bearing+pulse+error

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Gain set too low?

There is a seal on the antenna scanner shaft, just below the seal there are two bearings, thou the antenna are enclossed moisture still get inside and get to these bearings. Try and get a small amount of wd40 on the bearings, if not, you will soon begin to see false echoes on the screen because the motor on the scanner or antenna will begin to work harder causing a drag causing these echoes. Good luck.

Is the display still available? Is it brand new or used? How much are you asking for it?

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Hi does any one have a scanner for a jrc1000 they would sell me please can not find one for sale anywhere.

yes? what about it? it is difficult to guess what you wanjt from this description with no other leads.

Generic problem for all JRC GPS Devices Wire connection from chartplotter to radar dome

This is a bearing pulse error. Either the bearing pulse generator inside the motor is bad (Replace the motor) or it's in the radar cable or display.

found my fault not i the power cable in, but the interconnect to radar dome..approx 50mm from radar screen a break in the wire, found it just by wiggling the cable.. the set wont power up if the interconnect not connected or is faulty

Hi , I have a JRC 1000 with manual if it can helps ( in English and french but i ma in france. You can also use the installation manual of JRC 1500 available on internet under pdf format , very similar ( same screen and operating interface )
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