Leolion2177
- Apr 29, 2011
- 1
- Joined
- Apr 29, 2011
- Messages
- 1
Afternoon folks.
Can anyone please help a total newbie.
Opened a piece of equipment that we own that needed a replacement 12 volt battery put in.
The cables from the battery are connected to the circuit board via a flat ribbon cable. The cable is light grey in colour with the top "stripe" in red. As the cables in the equipment are red and black I assumed the red cable was positive.
I connected the red first and then when I attempted to connect the black , got a large spark and burning smell. Chickened out and went no further as I was afraid of damaging the pcb (which I maybe already have???)
There are no markings anywhere to advise on + or -. Any advice on whether the sparking is normal? or anyway I can check if I have the polarity wrong????
Thanks in advance.
Leo
Can anyone please help a total newbie.
Opened a piece of equipment that we own that needed a replacement 12 volt battery put in.
The cables from the battery are connected to the circuit board via a flat ribbon cable. The cable is light grey in colour with the top "stripe" in red. As the cables in the equipment are red and black I assumed the red cable was positive.
I connected the red first and then when I attempted to connect the black , got a large spark and burning smell. Chickened out and went no further as I was afraid of damaging the pcb (which I maybe already have???)
There are no markings anywhere to advise on + or -. Any advice on whether the sparking is normal? or anyway I can check if I have the polarity wrong????
Thanks in advance.
Leo