How do I determine the electrical polarity on a portable DVD player? - rca portable dvd player
I recently bought a car adapter for RCA portable DVD player for me, but the adapter requires a knowledge of the polarity of the device. The manual suggests checking the main board of the player, but nothing indicates positive or negative. And also examine the players and the manual and the RCA website gave me no answer. Can anyone help?
Monday, January 4, 2010
Rca Portable Dvd Player How Do I Determine The Electrical Polarity On A Portable DVD Player?
3 comments:
Remove the batteries from the player. With an ohmmeter check the resistance between the negative terminal of the battery, then the PIN of, within or outside the port for use with the AC adapter. Find a resistance very close to 0 This should be the negative side.
Remove the batteries from the player. With an ohmmeter check the resistance between the negative terminal of the battery, then the PIN of, within or outside the port for use with the AC adapter. Find a resistance very close to 0 This should be the negative side.
If you look close its appeal is probably a symbol next to the plug that looks like (NEG _ --- --- Co + pos), but if the \\ \\ \\ \\ \\ \\ \\ \\ ;---- u0026lt is the answer. You also want to make sure that you have enough mA charger for the player for free. Most of the time that a minimum of 500 mA is not much mA
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