Is my MMDC dying?

[Gavin17]

My gauges sometimes cut out for a few seconds then power back up.  MMDC only, perfect pass is fine. Last weekend they stayed off 10 minutes.  It seems like a loose, or corroded connection power or ground to me but I've taken them apart twice now and can't find anything obvious.  Has anyone else had this?  I'm considering changing to analog gauges but there's not a direct replacement for the speedo/ depth/ temp/ hours so I'd have to add gauges and make a custom dash panel to hold them. Whenever I test the gauges at home they work great.  

[Zippymbr]

Do a search, a member here had the same problem and took out his MMDC used a heat gun to remove the rear panel and under magnification found corroded and cracked solider joints on the board near the main power in pin. 

[Eagleboy99]

Under a hundred bucks for a new MMDC if you look around.

[Gavin17]

19 hours ago, Zippymbr said:

Do a search, a member here had the same problem and took out his MMDC used a heat gun to remove the rear panel and under magnification found corroded and cracked solider joints on the board near the main power in pin. 

Thanks!

 

Here's the old thread, I'll try that this winter. 

 

[Mb911]

19 hours ago, Eagleboy99 said:

Under a hundred bucks for a new MMDC if you look around.

Never found them that cheap. Any insight?

[Eagleboy99]

1 hour ago, Mb911 said:

Never found them that cheap. Any insight?

https://www.marine-surplus.com/product/medallion-mini-mmdc-module-7021-00007-01/ Not sure if this the right one for your boat - Medallion can tell you.  But the MDC1600 can be had for  just over double if you hunt.