While inspecting the smoke unit on my MTH 2500 Transfer Diesel it touched the frame. I heard a snap type noise and the engine went completely dead. No lights,no sounds, nothing. Reset did not help. Have I done the unthinkable and cooked a board. If this is the case how much am I looking at to fix this? Also the engine has the old 5 volt board in it which I think is unavailable. Thanks for any help.
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If you heard a snap noise, then the board most likely needs to be repaired.
Not good news, I suspect you shorted the PV or P5V to ground, that's really bad for the board.
It might be repairable, but you'll likely end up with the 3V replacement board. It's close to a drop-in when you get it with the 5V connector shells. You will also have to change the speaker, battery, and charging cable and jack. MSRP on the parts is about $215-220 I believe.
FWIW, if you are a member of the MTH RR club, you can buy the upgrade kit for $150 ($180 otherwise), and all you have to do is swap the shells from the toasted 5V board to the 3V board, the rest of the components are there unless the kit speaker doesn't fit.
This unfortunate incident is a reminder that it only takes a split second to damage electronics. Use extreme caution when handling live electronics, as even an oily finger bridging 2 traces can short out a board. Static electricity is also an enemy of electronics, and can damage an unpowered board.
Larry
An MTH ASC should be able to test the board. If the heating element power touched the frame it may be repairable. If the fan motor power touched the frame the probability goes down.
If your comfortable removing the board I can test it. If you want it test/repaired you can send the whole engine. If you need my assistance, e-mail is in my profile. G
Being totally dead doesn't bode well for the board.
Do any of the manufacturers provide flow charts for testing their electronics?
Larry
No. Just some basic guidance depending on symptoms. Nothing at the component level other than where the audio amp is, light fets, etc... G
Same thing happened to my transfer engine...smoke unit funnel cut into wire and wiped it out...this was from the factory ...I never had the shell off.
its the prettiest door stop in the house now !
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