On Aug 30, 3:39 am, Tony Hwang wrote:
Michael B wrote:
There may have been an intervening diode.
If not, which is more likely, it's probably time to go shopping.
After trying it with the wires properly placed.

On Aug 30, 12:08 am, cmply wrote:

I had a working portable DVD player made by toshiba. That is until my wife yanked out the wires to its battery pack,
And Just like a woman, she can't tell the difference between red wires and black wires and which goes to what.
Im certain my 2 year old daughter wouldn't have had a problem wiring red to red and black to black. Yep leave it to the one
I picked to spend the rest of my life with. oh dang!!

Anyways, I am curious to know if my DVD player is completely trashed or whether it can be fixed easily enough or not.

DVD player was wired backwards, and it died, There is no sign of life. What does wiring 12v backwards do to electronics
and is this repairable?

Id greatly appreciate any advice on what I might be able to do, besides replacement of course, or giving it to the wife for
her christmas present.. hehehe
Thanks

Hi,
After checking the diode whether it is burnt open.- Hide quoted text -

- Show quoted text -

I kinda doubt if it is a diode!
The purpose of a diode if fitted as part of the circuit is to prevent
the 12 volt electricity going through backwards!
Therefore a diode shouldn't (although it's not impossible) burn up.
Some equipment omits items like that although a diode cost only a few
cents, for economy.
You could open it up just to see if their is something obviously burnt
up (maybe an internal solidly soldered in fuse?) that could be cheap
to fix. Could be the on/off switch if fitted has burnt up?
Otherwise prob. not, (unfortunately) worth spending time or money on
it.
FWIW my neighbour who has bad luck with anything electrical managed to
do the same thing with a flashing beacon for his highway tractor
trailer. He blew the pi** out of the little printed circuit board
inside by hooking it up backwards; and it don't flash no more! Not
sure if it's fixable anyway.
If you need 'at home' examples of how 'not to hook things up' here's a
couple.
One would not set up a casserole to cook a roast and then put it in
the fridge to cook would you?
One wouldn't put on a bra (or most any garments) inside out or
backwards, would you?
One wouldn't drive down the street or hang a picture on a wall
backwards or upside down?
Try to bang in a nail with its point outwards; the wrong way.
Use salt instead of sugar? Read a book/newspaper backwards, etc.