A couple weeks ago, I had inadvertently fried my LX200 Classic's power panel when I went to hook it up to my wife's car battery at a star party. Long story short, I mistakenly switched the positive and negative power leads to the cigarette lighter cord, which fried things up.
The first thing to blow was the 25V 2200uF capacitor on the power panel's power jack (I didn't think those things would get that loud when they failed!). I've since replaced that capacitor with an identical one I found with the same specifications on a TV motherboard, but I still cannot get the power panel to power up the telescope. A friend gave me his old LX200 Classic's electronics (power panel, main PCB and hand controller) after getting the Dudash Autostar Upgrade kit. The power panel he gave me works, but I'd like to see if it's worthwhile to fix the old one so I have a spare again.
More importantly, what could've caused the old one to fail? I've read that Meade didn't provide reverse-polarity protection and there's some writings I've seen that includes building some sort of diode bridge, but I want to know what'll fix this and what won't. I've also read that there's a diode upstream of the power jack that has a built-in fuse that can sometimes fail in an accidental hookup with reversed-polarity power cords, but I've had that diode tested and it's in working order.
I'm with very limited financial means at the moment and I'm looking for an inexpensive fix.
Edited by SteveRosenow, 29 May 2015 - 03:04 PM.