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Post by suncruise on Apr 17, 2013 15:48:47 GMT
I wanted to share a solution I found for my Raymarine C90W widescreen display where 2 pins on the the power/data socket got corroded and broke off. The data/power socket is the one that's about 2-3 cm in diameter and has 19 pins on it. Raymarine quoted me 526 € to repair the 2 pins and as you can imagine that I wasn't too happy with that. In the end, I decided I would try to repair the unit myself. In my case, the repair cost me 270 € (including VAT) instead of the Raymarine fixed price repair cost of 526 €, or 996 € for the C140W. A schematic diagram showing the internal components of the C90W can be found here:- www.videoacustic.com/sat/RAYMARINE/service_manuals/SERVICE%20PACKS/C%20WIDE/Exploded%20View%20Schematic/D11788_1.pdfThe 4 sockets at the back of the display are all one unit soldered directly on a circuit board. In the schematic, this is item 29 I/O PCB assembly Raymarine p/n R62222. Raymarine told me that they couldn't supply me this item directly, but that they can supply this item to a Raymarine agent. I purchased this item through a local Raymarine agent here in France for 270 € (incl taxes and delivery from the UK to the agent's shop). The circuit board is quite easy to replace, but be warned, there are LOTS of screws. My guess is that if you can replace a hard drive on a laptop, then you should be able to carry out this repair. The first step is to remove the 18 screws located near the front of the display and remove the front cover. Then work your way removing the various components within the unit, taking care when disconnecting the various cables between the screen, main processor motherboard and finally the PCB with the 4 sockets soldered on it. It's fairly straight forward, but if you need a more detailed description, please let me know. |
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Post by MalcolmP on Apr 17, 2013 15:59:14 GMT
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Post by suncruise on Apr 17, 2013 16:42:38 GMT
Hi MalcolmP The Hints&Tips library looks like a usefull resource. Here is a photo of the I/O PCB assembly with the 4 sockets soldered onto it. In the photo, 2 of the pins have been broken off (the 2 pins supplying the 12v power).
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hdezo
New Member
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Post by hdezo on Oct 13, 2013 14:55:45 GMT
Hello!
Have you found a solution to repair your raymarine c90w pcb?
Do you still have it, because I will be interested.
Please contact me
Best regards
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Post by agaurolex on Mar 27, 2014 4:14:05 GMT
I fiqured the broken pin problem was probably happening to a lot of C series wide Raymarine MFDs. I too though it was insane to pay $500 USD to have the MFD repaired. After contacting the Raymarine service center and researching connector companies, I didn't get anywhere in trying to find out who manufactured the socket so I can replace it myself.
It is possible that the socket was designed and manufactured by Raymarine. But I would say with higher probability that it was designed by some other company or some military connector company, since Raymarine is a spinoff from Raytheon. Again, I ran into deadends into finding a connector.
If you have the main power pin broken on your C series wide power receptacle, the larger pin is a 14 gauge gold plated connector. The Sourieu connector pins work perfectly to repair it. The connector is alittle tricky to remove from the circuit board, but using solder wick and wiggling the connector it can be done with some patience. The pins are inserted into the connector and bonded with epoxy. If you heat the pin with a soldering iron you can you can pull the broken pin out with needle nose pliers. Then use the Sourieu pin to replace the broken pin and it fits perfectly. Since the Sourieu pin has a crimp end and the overall length is shorter then the raymarine pin you would need to solder an extension into the crimp and match it up to the length of the other pins when they get inserted back in the PCB. I suggest to replace both power pins while you are at it. I believe I used a combination of super glue on the pin body along with 5 min epoxy to secure in place.
The repair job was done over a year ago and the MFD has work flawlessly. The cost of pins less than 4 bucks each. Needless to say I was happy to save a lot of cash....but it took about four hours to do.
I also suggest to take photos before you start unplugging the connectors since there was one connector that could be plugged into two different locations.
Sourieu-RM14M25K
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Post by Mistroma on Mar 29, 2014 23:15:02 GMT
Many thanks for a great tip. I think that I'll buy 3-4 as spares before flying out to my boat in a few weeks. I haven't had any problems yet but do remove the MFD in harbour and it is sometimes a little difficult to pull out. So might only be a matter of time. I noticed that you said "the larger pin is a 14 gauge gold plated connector." and to buy "Sourieu-RM14M25K" pins. The following links came up when I searched for RM14M25K but they seemed to be for 16 gauge pins (description says the contact size is 16 and wire size 14-16 AWG): uk.farnell.com/souriau/rm14m25k/crimp-pin-machined-14-16-awg/dp/2102371uk.rs-online.com/web/p/circular-connector-contacts/7883394Can you confirm that 14 gauge relates to the wire size these are designed to accept OR if it refers to the pin diameter? |
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Post by agaurolex on Mar 30, 2014 16:04:23 GMT
I had to dig into my notes to verify your question. The pin is 14 gauge (1.6mm, .0628 inches) hence the 14 in the part number. I contacted Sourieu directly to verify if I had chance on this pin working and they provided me an engineering drawing of the pin. The part number is correct.
Corrosion is the biggest problem with these connectors and that is why the pins break off. I noticed green corrosion at the point of the pin breakage. To minimize the corrosion effect and provide longevity, I would try to ensure the connectors are dry before connecting them. In the marine environment that could be a challenge....lol
I don't have a solution for the smaller pins if they break. Maybe someone here can measure one to see if Sourieu would have a similar part?
Midway through the Sourieu pin there are locking tabs as shown on the drawing. I don't recall if I had to grind those down to make them fit. It has been over a year and my recollection is hazy....lol
Ultimately if someone here knows the manufacturer of this connector that would be the way to go. If the part is obtainable. Worst case is too use Suncruisers suggestion on replacing the board. Too me, that would be the last resort.
I also attached the order print out from Mouser.....the supplier in the states.
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Post by Mistroma on Mar 30, 2014 22:20:51 GMT
Many thanks, I'll try to contact Mouser in UK. I looked at their web-site (http://uk.mouser.com) but couldn't find the part you mentioned. However, I should now be able to track it down with the dimensions & part no. you provided.
I'm taking a tube of Contralube 770 to the boat in order to coat connectors and hope that will keep corrosion at bay. I'll buy 4 pins and grind off the locking tabs on 2 of them so that I have a pair with and another without.
Contralube is pretty expensive now but I bought before the price shot up (http://contralube.com/contralube-770)
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