audiosonic portable dvd player , model KM0502. fault

[Guest]

hi , i have a audiosonic portable dvd player , model KM0502.

the problem with it is , is that when u insert a dvd disc ,it doesnt
turn, the laser moves ok, and it says " disc not inserted "
i then connected a 1.5 volt battery to the motor , and it turned ok.

so i presume the power supply section on teh pc board is damaged.

would it be possible to make up a simple reg supply just for the motor ?
the thing is , i dont have a clue as to what voltage the motor is ?

anybody know ?

thanks,
mark k

[gary]

ITS MORE LIKELY THAT THE LASER PICKUP ASSEMBLY HAS FAILED, THE MOTORS DO NOT USE A CONSTANT SUPPLY, THE SPINDLE MOTORS SPEED WILL VARY DEPENDING WHERE ABOUTS AN THE DISC THE LASER IS READING, THE SLED MOTOR TURNS IN BURSTS AS THE LASER REQUIRES TO BE MOVED TO A DIFFERENT POSITION. ALL THESE THINGS ARE CONTROLLED BY A SERVO SYSTEM, WHEN THE DISC IS INSERTED THE PICKUP ATTEMPTS TO FOCUS ON TO THE DISC, IF IT CANT IT ASSUMES THERE IS NO DISC PRESENT.