Use an ohmmeter to determine the resistance on the potentiometer (variable resistor) on the side of the laser assembly. I don't know what they read on your model, but on an Xbox the laser should read about 4500 ohms on a new laser, or as little as 2000 ohms on one that is at the end of its lifespan. Once you get your reading, reduce the resistance, no more than 200 or 300 ohms at a time, by turning the potentiometer screw with a jeweler's screwdriver. On the xbox, you turn it counterclockwise, but it may be different on this dvd player. Be sure you check it with your ohmmeter, and don't make too big of a jump. If you go too low, you can cause the laser to burn out completely. On an xbox, 2000 ohms is the minimum, going below that can make it burn out. Once again, it may be different on your dvd player. Good luck!
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If the disc does not rotate it means there is something wrong with the power supplying the disc motor or the motor itself is defective. Try to rotate the disc motor manually, If its rotating freely then the problem is in the circuit that supplies the disc motor.
First try a couple more discs. If it still doesn't work. Take a little bit of alcohol on a qtip and clean off the little clear circle under the lid. Make sure the dics you are using a not scraped and not foreign. If that doesn't work, order a new one and put the old one in the new box and send it back as broken.
With the power turned off, open the DVD Player, and
then open the top where you load the DVD into the player. Locate the
and notice that the laser is attached to a transport assembly that
moves the laser
diagonally outward in a slot. 1. Slide this assembly outward to the end
of its track. 2. Slide the assembly back inward to the closest inward
position. 3. Repeat the process of sliding the assembly outward and then
back inward.4. Put in a music CD and let it play all the way through.
This helps to calibrate the laser head assembly movement. When the
music CD is finished playing. 5. Put in a DVD, and you should have a
again This is a factory solution from Mintek that was given to a
customer who ask for help with the forever loading disc problems. This
solution may work on other models of portable DVD players. Most
portable DVD players use this type of transport mechanism. Try this
solution it might work for you.
I have finally fixed ya you BAD DISC error message on the Polaroid PDM-0743 ok, listen carefully, first try cleaning the eye lens in the dvd player with a Que Tip with "distilled water" or with "rubbing alcohol" and then let dry, put movie in, turn power on, and it MIGHT WORK? but my guess it will still say BAD DISC, so if that happends it's take apart time you will only need one tool <p><img src="http://img.photobucket.com/albums/v609/goodold56/Tools.jpg"></p> Take out the battery and Flip the unit over where the DVD players LCD SREEN is sitting on your lap you should find alot of black screws just un install the screws on the back <p><img src="http://img.photobucket.com/albums/v609/goodold56/backofplayer.jpg"></p> but wait take this sticker off too. <p><img src="http://img.photobucket.com/albums/v609/goodold56/sideofpalyer.jpg"></p> and after that <p><img src="http://img.photobucket.com/albums/v609/goodold56/laserlensscrew.jpg"></p>