20 Most Recent Kenwood DV-6050 Multi-disc DVD Player Questions & Answers

hello,
the problem the disc is samsung DVD home theatre is having is the lense that is weak. if yo replace the lencse then it wold work properly.

Hi I wish I had better news, but the problem you describe is the same problem that 90% or more of the DVD and for that matter CD players we service come in with. I would say that in about 60% of cases, the problem is dust or other contamination on the laser lense. If you have just done some drywall or other such work in your home, then that is likely the problem. Also, pet hair or other debris can be on the disc when loaded (especially if you have kids), and if it falls off and lands on the lense, that too can cause problems. The other most common things are a bad spin motor, (if you can, put your ear to the unit while it says "LOADING" and you should hear the disc spinning.) If the disc does spin up, and it is not dust, then it is likely a bad laser, and usually, the cost of replacing the laser makes repair not economical. You could try buying a laser cleaning disc, but I find they don't work well, and you should not take the DVD player apart yourself if you are not a tech, as the laser can damage your eyes. My advise would be to call around to local repair shops to find one that has a the lowest bench fee to diagnose the unit, and have it checked. Since it is so difficult to make a living repairing consumer electronics these days, because of the low replacement cost, you may even find a shop that will check the unit free of charge! Good Luck!

Format the disk.

Manually cleaning the lens
To locate the laser lens, look around the door or drawer of the DVD player and you will see a small circular disc, which is often called the turntable or disc platter. Right off the edge of the platter you should see a small clear lens. There are some manufacturers that have had problems with the lens, depending on the age of the unit. In these problem players, moving the unit to a different location, turning the unit upside down, or sometimes even without moving the unit, the lens can become detached from the laser assembly and floats around inside the unit. You can re-glue it back with a little crazy glue, BUT it must be perfectly centered, and without getting any glue on it. So, if you don’t see the plastic lens, but instead see the laser pick-up assembly, look around for the lens inside the unit and glue it back on.
To clean the lens you must use very little pressure. Take a cotton swab and barely moisten it with plain, non-scented, or oily type alcohol. In a swirling motion, very gently rub the lens until you’ve covered it entirely. Then repeat using the dry end.
If the cleaning didn’t help, don’t despair just yet. You can see if there’s a problem elsewhere in the unit by using a few simple tricks and tips.
First thing you want to see if the unit’s laser is in good working order. This method isn’t foolproof, but most of the time works admirably. When you insert a disc, see if you can look up underneath where the disc sits on the turntable. Observe the laser lens going up and down. If the lens is trying to focus, that’s good! After a few seconds of the lens trying to focus, the platter should start to spin. On almost every CD/DVD unit I've encountered, the unit won't spin unless the laser has properly focused on the surface of the disc. If the unit spins up and and then shuts down, you should check and make sure the laser pick-up assembly slider mechanism is working without any obstructions and that the small chrome rail that it slides on is slightly greased. Don’t go overboard with the grease though, as too much can cause all sorts of problems.
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 problem also.
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;

Regards,
VOTIT

DON'T TO FORGET TO RATE

http://www.youtube.com/watch?v=K-lLZqLrBfg

hello,
it is either the lense of the hi fi system that may be faulty, therefore, if that is the case you take it back to the dealer that sold it to you.

or probably the disc is not compatible with the HI-FI system.

Hi
I've been working on DVD players since they were invented, and was factory trained by Sony, Hitachi, and Kenwood, but I must admit, I'm not understanding your question.
The laser diode fires through a lense, that is supended on tiny wires, and moved into focus by an electro-magnet. Now, I have replaced lenses that have popped off due to poor adhesive from the factory, but I have no idea what you mean by "unlocking the lense"
If you mean that you have replaced the entire laser ***'y, and it is not emitting, then that is likely because the shorting bar has not been removed. It protects the laser during shipping and storage, and must be removed. If you compare it to the old laser, you will see pins shorted together by a tiny metal bar, or in some cases just solder...if this is not removed, the laser will not emitt. If you put the old one in and it does, then 99% that is the problem...if the old one does not, then the laser is probably not your problem. Hope this helps, and be careful to always look at the laser at an angle to check for red light, so you aren't performing home laser eye surgery...not a good idea!

P.S. After re-reading your question, on some models, it is possible to replace the lense ***'y, because the electro-magnet has failed in some way, and does not move the lense, but if that is the case, I don't know why the laser would suddenly stop emitting, just because that was changed...normally it is all one ***'y. Good Luck!

You probably have burnt the dvd disc using a video format that is not compatible with your player.
A lot of DVD players will not play .AVI or DIVx files that are commonly downloaded.
Your DVD player manual should list the formats it will play.
Convert downloaded movies to a compatible format before burning to disc.
There are several conversion programmes available via the web - at a cost of approx $50.00.
AVS4U works ok.

is it a homemade dvd or a dvd that you purchased at a store ?

Trato de Abrir el CIBER HOME al quitar los tornillos la tapa no desliza
hacia atrás. Como se hace

Clean the eye... try another disc, apex usually pretty robust unit. Glass eye near center spindle, clear alcohol, swab gently.
Loading indicates unit doesn't see the disc..

Power is not turning on
was working until yesterday Jan. 8th 2009

Manually cleaning the lens
To locate the laser lens, look around the door or drawer of the DVD player and you will see a small circular disc, which is often called the turntable or disc platter. Right off the edge of the platter you should see a small clear lens. There are some manufacturers that have had problems with the lens, depending on the age of the unit. In these problem players, moving the unit to a different location, turning the unit upside down, or sometimes even without moving the unit, the lens can become detached from the laser assembly and floats around inside the unit. You can re-glue it back with a little crazy glue, BUT it must be perfectly centered, and without getting any glue on it. So, if you don’t see the plastic lens, but instead see the laser pick-up assembly, look around for the lens inside the unit and glue it back on.
To clean the lens you must use very little pressure. Take a cotton swab and barely moisten it with plain, non-scented, or oily type alcohol. In a swirling motion, very gently rub the lens until you’ve covered it entirely. Then repeat using the dry end.
If the cleaning didn’t help, don’t despair just yet. You can see if there’s a problem elsewhere in the unit by using a few simple tricks and tips.
First thing you want to see if the unit’s laser is in good working order. This method isn’t foolproof, but most of the time works admirably. When you insert a disc, see if you can look up underneath where the disc sits on the turntable. Observe the laser lens going up and down. If the lens is trying to focus, that’s good! After a few seconds of the lens trying to focus, the platter should start to spin. On almost every CD/DVD unit I've encountered, the unit won't spin unless the laser has properly focused on the surface of the disc. If the unit spins up and and then shuts down, you should check and make sure the laser pick-up assembly slider mechanism is working without any obstructions and that the small chrome rail that it slides on is slightly greased. Don’t go overboard with the grease though, as too much can cause all sorts of problems.
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 problem also.
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;

Regards,
VOTIT

DON'T TO FORGET TO RATE

Click here to find a store that sells the disk cleaner. Radio shack and computer stores should have it as well.