My RL70C MFD shows "no fix". I have unhooked the GPS terminal under the helm and disengaged the batteries. The reboot button on the MFD doesn't seem to do anything. I am as green as they come with this big boat instrumentation and don't know what else to troubleshoot. I don't want to put a lot of money into repairing out of date or obsolete equipment. Any help on what to troubleshoot and advice on what to replace old equipment with in the event its not worth repair. I will not be a "heavy" user of a lot of the features. I'm already having to replace my VHF. I know some of this stuff works together and want to ensure that continues to happen with whatever I buy.
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