Dune
Senior Member
2011 Raymarine E120 wide MFD (multi function display) software V2.49, works fine for everything else (GPS, depth, video cameras, autopilot, Sirius weather) but the radar has gradually crapped out ...and now is totally kaput.
* Radar is 2011 Raymarine RA1072SHD 72" Super HD digital open array
* Power supply for radar is 2011 Raymarine VCM100 which converts 12 VDC to 40 VDC
* Seatalk is 2011 Raymarine SR6 model. I honestly am not sure if the radar even uses the Seatalk. Some drawings in the manuals show the radar going directly to the E120 MFD....but other drawings show it going thru the SR6. Naturally, installer didn't label anything so I have no clue what is what cable wise, on the SR6.
So, the deal is the radar worked fine for a few months but has been getting more "finicky" over time...harder to engage it via the MFD, "no data found" errors getting more frequent. Recently get "no data found" error all the time, but then found that the VCM 100 power supply had red light lit at "fault".
I reboot (turn it's circuit breaker off/on) the VCM 100 and it seems to work fine. Comes on with 41 volt output then after a minute or so goes into blinking green "sleep" mode with 13 volts output as it should.
So I think, ahah, problem solved. But not so.... I can get radar to come on again...but only for a few seconds after the array starts rotating and the first transmission images appear on the screen. Then it stops and goes into "No Data Found" mode again. So I start over, rinse and repeat (as many as a dozen times, same deal each try) All this time the VCM 100 power supply seems to work as it should (correct LED lights on, correct voltage outputs)
Eventually though the VCM100 goes back into red light fault mode again. And now that is all it will do. Every off/on of circuit breaker and it briefly blinks the sleep light, it tries to go into 41 volt mode (briefly see light for full power on) but then faults to red light.
So, you think bad VCM100, right ? But not sure, as it is seems to be more complicated than a simple power supply. If for example I disconnect the main cable at the radar array itself and power up it goes into sleep mode and stays there. So then I wonder if it's really going into fault mode because of a problem in the radar array itself ? (and yes, radar on/off switch at base is definitely "on"...but I even wonder if that switch could get corroded internally..)
Which do you think is the problem, the power supply or the radar array ?
Wish it had occurred to me to have a volt meter on the VCM100 output, right as the radar started in transmit mode as it would have been interesting to see if the 41 volts dropped at that time. Too late now as I can't get it out of fault mode.
Other possibilities include corrosion on cabling or connections and the Seatalk. Pretty sure connections are not the problem, dunno about the SeaTalk SR6...works fine for all else.
* Radar is 2011 Raymarine RA1072SHD 72" Super HD digital open array
* Power supply for radar is 2011 Raymarine VCM100 which converts 12 VDC to 40 VDC
* Seatalk is 2011 Raymarine SR6 model. I honestly am not sure if the radar even uses the Seatalk. Some drawings in the manuals show the radar going directly to the E120 MFD....but other drawings show it going thru the SR6. Naturally, installer didn't label anything so I have no clue what is what cable wise, on the SR6.
So, the deal is the radar worked fine for a few months but has been getting more "finicky" over time...harder to engage it via the MFD, "no data found" errors getting more frequent. Recently get "no data found" error all the time, but then found that the VCM 100 power supply had red light lit at "fault".
I reboot (turn it's circuit breaker off/on) the VCM 100 and it seems to work fine. Comes on with 41 volt output then after a minute or so goes into blinking green "sleep" mode with 13 volts output as it should.
So I think, ahah, problem solved. But not so.... I can get radar to come on again...but only for a few seconds after the array starts rotating and the first transmission images appear on the screen. Then it stops and goes into "No Data Found" mode again. So I start over, rinse and repeat (as many as a dozen times, same deal each try) All this time the VCM 100 power supply seems to work as it should (correct LED lights on, correct voltage outputs)
Eventually though the VCM100 goes back into red light fault mode again. And now that is all it will do. Every off/on of circuit breaker and it briefly blinks the sleep light, it tries to go into 41 volt mode (briefly see light for full power on) but then faults to red light.
So, you think bad VCM100, right ? But not sure, as it is seems to be more complicated than a simple power supply. If for example I disconnect the main cable at the radar array itself and power up it goes into sleep mode and stays there. So then I wonder if it's really going into fault mode because of a problem in the radar array itself ? (and yes, radar on/off switch at base is definitely "on"...but I even wonder if that switch could get corroded internally..)
Which do you think is the problem, the power supply or the radar array ?
Wish it had occurred to me to have a volt meter on the VCM100 output, right as the radar started in transmit mode as it would have been interesting to see if the 41 volts dropped at that time. Too late now as I can't get it out of fault mode.
Other possibilities include corrosion on cabling or connections and the Seatalk. Pretty sure connections are not the problem, dunno about the SeaTalk SR6...works fine for all else.
Last edited: