Question about Samsung HT-X50 System
I have no idea what my step son did to the disc tray when he was told to take a disc out...but the tray will not close all the way. It goes all but abut 1/2 inch. Any help....especially before my hubby wakes up and finds out that his son busted his theater system!!
The slider mechanism, depending on the age of the unit and the manufacturer,
consists of the small chrome rail, a drive motor, a small gear assembly, and
(in some units) a small belt that drives the slider unit via the motor. This
small belt causes all sorts of problems. If the belt is broken or slipping, it
can cause skipping, dropouts, or simply no start up at all. Also, if the belt
breaks in the middle of the disc, the drive mechanism gets hair or dirt wrapped
up into the gears, or the pick-up assembly doesn’t return to the start position
(called home), the unit will (99% of the time) refuse to release the disc, causing
it to become stuck inside the unit. There’s a little micro or leaf type switch
located at home position that sometimes gets dirty or breaks and, causing this
If the disc starts to spin slowly and doesn’t come up to speed, the spindle motor that’s attached to the turntable platter is a common problem. There could also be a problem with the spindle motor driver controller IC or the power supply regulator that supplies voltage to the driver IC. If the disc starts to spin and then spins really fast, or stops and starts to spin backwards, your problem is the laser pick-up assembly or the servo control circuit. If you continue to have problems after cleaning and checking the other things listed above, you may have a problem with the player's alignment. Of course, one of the problems you'll face checking alignments on a DVD/CD player is that you’re going to need to use an oscilloscope on most of them. If you have the proper tools and equipment, the first thing to look at is the RF pattern of the unit while its playing. It should be a sharp and clear pattern. If it's dull and smeared, then the laser could be weak.
Also, in these units are very critical alignments called the focus/tracking gains and offsets. When these alignments are off, it can often cause intermittent troubles. As the unit ages and parts change value, so do these alignments, and will need to be checked. In my time as service technician repairing DVD/CD players, 65% of the laser pick-up assembles I have tested were good and only needed a small adjustment. Today's technology makes it unfeasible for a shop to hook up a DVD/CD player, and even some recorders, to their equipment and make these adjustments because of the cost involved.
Hope this may help;
DON'T TO FORGET TO RATE
Posted on Aug 10, 2008
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