Question about Televison & Video

4 Answers

I have a samsung ht-wp38 dvd home theater but everytime i load a dvd into the player, it doesn't read the disc. i tried buying the dvd laser head cleaner but the problem still persists.

Posted by on

  • omac_e Oct 02, 2008

    I already called samsung about the problem but i will have to cough up more money.

×

4 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 171 Answers

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.
Now, if no cables are disconnected, and if you can verify nothing is touching the TV or DVD chassis, you can plug in the unit and check if this helped the player to "see" again. Most of the time you can check as is, though on the combo units you're going to have to slide the chassis assembly all the way back into the cabinet to get it to work because the cables are often too short. If this didn’t fix the problem, please read on.
Other things to check 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.

Posted on Oct 02, 2008

  • Todd Gale
    Todd Gale Oct 02, 2008

    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.

    Also, in a DVD/CD player there are many complaints where the disc gets stuck inside of the unit. This could be as described earlier, but there’s also what’s called a drawer/disc tray opener and closer mechanism to contend with. On many models, old and new alike, there’s a small belt that goes bad and wont let the tray open. You can usually put your ear very close to the front of the unit and, if this is happening, hear the motor spinning when you press the eject button. Another cause is the nylon gears, which can get jammed up with dirt and dust. Also, in other cases, you could have a motor problem, or the driver IC could be at fault. If you suspect that the motor is at fault, simply measure the voltage on the tray motor while pressing on the eject button. If the voltage comes up between 6 to 12 volts, depending on the manufacturer, then the motor needs to be replaced.

    Alignments

    If you continue to have problems after cleaning and checking the



    GA_googleFillSlot("TL-IMU-Article");




    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.

    Wrapping it up
    If you tried to clean the lens, make sure the unit was trying to spin, and verified the slider is working, there’s not a lot more that a consumer or end user can do. It’s going to be up to you to assess the value of the unit, and compare it to the cost of a new one or the estimated cost of the repair. Hopefully you'll be able to make a better decision based on your findings. If you did make any improvements to the unit and fixed a problem, GOOD FOR YOU!

    As a final step, you must follow the directions in reverse for the assembly of the combo unit. Please remember to tie up any cables or wires that you took loose. Garbage bag ties do the job nicely, BUT if they're the metal, paper wrapped types, keep them away from the HI Voltage lead and circuit board parts inside the set. Remember to remove the wood block if you used one, and please be careful not to hit the picture tube neck when reinstalling the back of the set. Don't forget to put all the correct screws and fasteners in the correct place, as they are put there for a reason!.

    Most importantly, always remember safety when working on anything electronic or mechanical

  • Todd Gale
    Todd Gale Oct 03, 2008

    Please rate this solution.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 790 Answers

Hi

in this case maybe your pick up Lens is Dirty, Clean your lens with 100% Cotton Manually, Then test run.

Thanks
Likha

Posted on Oct 02, 2008

  • carlos fernandez Jr.
    carlos fernandez Jr. Oct 02, 2008

    if the test run is done! and the problem is the same, you need to replace the pick up laser lens and the Flex Ribbon Wire..
    ill teach you how to replace the pick up lens and the ribbon wire

    Thanks!
    Likha


×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 6,487 Answers

If you already tried different disc and still wont read it, there's already a problem with the lens of the player and that will need a replacement already , better take it to a service center near you and let them replace it...

Hope that helps.........

Posted on Oct 02, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,124 Answers

Need to be serviced or replace the dvd lector

Posted on Oct 02, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have an RCA 52 " projection TV thats now 6 years


you have to run theater system eather through your vcr or your dvd player for mor out put jacks and input jacks on older tvs but the thing is your dvd player remote will be your tv remote the same as your vcr remote.

Feb 13, 2011 | RCA P52937 52" Rear Projection Television

3 Answers

Portable dvd. when movie is loaded, it relates that the disk is wrong.


If you device is less then a year old, I would suggest to call the manufacturers to get fix under warranty.
It appears like the lens is not reading the DVD or it might not be in the home position. The home position is where the DVD holder is, you should be able to see it when you open the DVD cover.

Oct 10, 2008 | Televison & Video

1 Answer

Sony KF50we60 hdmi-dvi sound cuts when plugging into a ht-sf2300


DVI = HDMI without the audio connectors. So basically you need to connect your audio in some different way, PS3s allow you to keep your video signal as HDMI and change the Audio signal to component, so that is one way or doing it, not sure if the blue ray players allow you to do this though.

Nov 22, 2008 | Sony Grand WEGA KF-50WE620 Television

3 Answers

The DVD player in my 24" Toshiba Combo DVD/VCR TV is working intermittedly. It plays fine for a about 30 minutes ... then it stalls for a few seconds, starts again, stalls, starts again, stalls until...


This can be either a dirty lens or the optics starting to fail. On very rare occasions it is the digital processing section. Try opening up the unit and cleaning the lens using a cotton swab and alcohol. If that failes to correct the problem, try playing a music CD. If the CD plays OK, I'd suspect that the optics are starting to fail. Reading a CD takes a lot less laser power than a CD.
Keep us posted.
Dan

Apr 11, 2008 | Televison & Video

3 Answers

Connecting a Samsung HT-Z310 home cinema to a Series 5 Samsung TV and Games consoles, will only work with DVD currently. How do I get the cinema system to work for TV and consoles?


Do you have an Optical Audio cable going from the A/V receiver to the TV? If not, you need to get one. Since the HT-Z310 only has HDMI output and no input there is not audio bypass. Once you connect an Optical Audio cable from the receiver to the TV, anything that goes through the TV (cable audio, PS3 or Xbox 360, DVDs, Radio) will go through the receiver, too.

May 28, 2008 | Televison & Video

1 Answer

Can't make it work


If the DVD doesn't recognise a DVD disc, then if can only be one of the following:
1. Not a compatible disc... Try a store bought disc.
2. Defective disc... same as above.
3. DVD player is defective and needs repaired or cleaned.

When a DVD player says "No Disc" it also means " Can't read Disc".

Hope that helps,

Geno

Mar 22, 2008 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Integrated DVD player


If your handy, then try to disassemble the DVD .player from the unit and manualy clean the lens assy,but please be aware of the HI Voltage dangers inside of a tV set. if your not then Please call a pro top assist you with this repair. If the units not worth fixing then simply buy and inexpensive DVD player/recorder and hook it up via the external inputs. Good Luck

Jul 24, 2006 | RCA Scenium D40W20 40" Rear Projection...

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

84 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69654 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6364 Answers

yadayada
yadayada

Level 3 Expert

63291 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...