Question about Coby 5.1 Channel DVD Player with Home Theater Speaker System System

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Parts I need the part (small motor) that moves the cd into the eye Colby model DVD-925, s/n 0935000677 no disc error, have determined this part needs replacing thanks

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Found out from manufacturer the only way to replace motor is to pull one from a compatible system, spare parts unavailable.

Posted on Aug 02, 2008

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DISC ERROR OCCURING TIME AND AGAIN


If this problem occurs only at this cd/dvd it's a disk problem. If it occurs on various disks try using a cd/dvd cleaner set, a wet one is better. Follow the instructions on the set. The main idea is to put one drip of the included liquid at the set (usually isopropyl alchohol) at a specific place (like small brush) on the disk surface and play this disk. This way the "brush" will clean up the laser lens and after that the cd/dvd player will be able to read the disks. BE CAREFULL not to put too much liquid on the "brush". In case you can, use a Q-tip with isopropylic alchool to clean up the cd lens manually. In case this don't solve your problem, the cd player needs laser lens replacement by a technician.

In case of a problem or clarification, don't hesitate to post me a reply.
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May 09, 2010 | Sherwood VR-652 Theater System

2 Answers

Blu-ray dvd disc error on jvc th-g41. Will not play.


if your blu-ray is updateable then get update also try other disks

Apr 25, 2010 | JVC Th-g41 Theater System

1 Answer

I cannot open the dvd/cd drawer. It sounds like


First you do is to unplug the cord of your DVD/CD unit for 5 hours in order to drain the stored current,the purpose is to reset the unit. After the 5 hours plug theDVD/CD see to it if it open If not,just try to press down on the stop button and pressing eject button at same time and it will unlock the tray .Then the other option is to open the cover of the DVD/CD unit and unplug the unit again to avoid electricshock . When open already look for the disc platter moved it outward while driving the gear or simply push out. The drawer or door of the DVD/CD player and you will see a small circular disc which is often called turntable or disc platter.When the disc platter is out push it back and push it out you do this three times so the slider mechanism align it properly.If you do already what i said then plug it again and if works already closed the cover. 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. Hope it may help you; Regards; VOTIT DONT FORGET TO RATE;

Jun 27, 2009 | Bose (321GS) System

1 Answer

CD/DVD reads no disc after inserting working CD/DVD


More than likely it has dust on the laser eye, it will need to be cleaned

Feb 22, 2009 | Bose Lifestyle 48 System

6 Answers

Samsung HT-Z310 tries to load disc, but never does


I've had a similar problem where the disc continues spinning in the "loading" mode and then finally goes to "disc error." So, I opened the cover of the player, and noticed that the disc was not spinning as fast as I expected, and there was an extra unpleasant sound when the disc was spinning. Thus, I suspected there was an issue in the drive motor system: either the motor drive board, the motor itself, or the contact to the disc. I saw that there was dust accumulated on the rubber contacts to the disc, so I cleaned them with a q-tip. I then resetted the system, and the disc was the spinning normally again, and everything worked like before! (Other things I have tried in the past were cleaning the lens and updating the firmware, none of which worked) I hope this helps!

Jan 25, 2009 | Samsung HT-Z310T Theater System

1 Answer

Error display no disc


the problem is with your dvd players optical pic up .remoove the cover and clean the optical eye cairfully with cotton bud.(remember this is eye treet it very smoothly).then try again or use head cleaning cd.after that it will work .otherwise you have to change the optical lense to check wether it is problem with circuit or lence.

Jan 08, 2009 | Home Theater Systems

1 Answer

Disc Tray will not close


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

Aug 10, 2008 | Samsung HT-X50 System

1 Answer

Denon adv-500sd will not play discs!!


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;


DON'T FORGET TO RATE;


Regards,
VOTIT

Jun 11, 2008 | Denon DHT500SD System

1 Answer

DVD player


DO NOT LOOK AT AN OPERATING LASER INSIDE A CD PLAYER OR DVD MACHINE; DOING SO CAN DAMAGE YOUR EYES!

ANY OF THE BELOW DESCRIBED PROCEDURES MIGHT DAMAGE YOUR EQUIPMENT MORE THAN IT IS, SO PROCEED AT YOUR OWN RISK SO I AM NOT ACTUALLY RECOMMENDING THEM :

Often, in cases like this, the focusing lens for the laser is dirty or out of alignment. I don't know how good you are with tools and electronics, but one often has to take out the dvd player to reach the lens directly to clean it. You'd have to be very careful not to scratch the lens or leave any lint, even a tiny hair; you can also knock the movable trolly out of alignment.

I've had good luck with a bit of 90% rubbing alcohol and a cue tip, but some say you need special cleaner. Sometimes a blast of compressed air from one of those cans specially designed for cleaning electronics parts is enough to do the job.

If you can see the lens and you have a long enough red plastic tube that comes with the can you may be able to blast it clean without disassembly. Note that there is a focusing lens and a laser with a lens on it; both often need cleaning, but the lower lens is generally inaccessible without significant disassembly.

Lastly, there are a number of good DVD and CD repair hints for this exact problem because it's fairly common and the fix is generic. You can find these on the web with Google, Just type in key words like " DVD Can't read disc error", or something similar.

GOOD LUCK!

Jan 20, 2008 | Home Theater Systems

2 Answers

Dvd error code 31 00 (not 13 00)


About the dvd error code C 31 00. I just found out and fixed the problem. You must open the top of the machine and move the white moving finger that picks the dvd/cd slot back into its origional place. Via a slot on the left side of the cd compartment about an inch in. The it will then properly pick the dvd/cd that you wish. You must also open each dvd/cd drive again so that your machine will know there is something in it. YOU ARE WELCOME

Oct 26, 2007 | Home Theater Systems

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