Question about DVD & Blu-Ray Players

Open Question

I have a LG LRA-750 dvd recorder. The unit no longer recognizes the discs I put in it. The laser/lens assembly was cleaned up and the laser does light up and tries to read the disc. My guess is I have to replace the entire drive unit. Where can I get the replacement part?

Posted by on

  • Anonymous Sep 01, 2008

    I have a LG dvd player HL 550 T modle

×

6 Suggested Answers

  • 1 Answer

SOURCE: LG DR-4810 DVD Displays " PLEASE WAIT"

C113 10v 1000uF cap off an XFRMR in power supply board. Cooked and gone high esr. Replace with a 16v.

Posted on Nov 26, 2007

dankind38
  • 6 Answers

SOURCE: SONY SLV-350P DVD PLAYER/VCR COMBO

I'm afraid you are dealing with a weakened Laser on the unit. The cost vs. benefit ratio of fixing this unit is not worthwhile.

You will find that there are newer versions of this device on the market less expensive than what you paid for the unit you have now.

Posted on Dec 30, 2007

  • 2 Answers

SOURCE: Invalid disc reading

I have successfully made hundreds of play-able DVDs from my home video using this Liteon LVC9016G. Overall I like this machine although it is very quirky.

In my experience the only DVD that can work is SONY DVD+R 120min / 4.7GB. NOTHING ELSE WILL WORK RIGHT. I have used some DVD-R: You can record on it since everything appears to work. The got-ya is you cannot play it at all. I am sick of this because I have re-used some tape but ended up with useless DVDs! Take my word for it, I have tried many media like Maxwell or Verbatin. These "other brands" are fine on the computer but not on this machine. I don't know what this machine can detect and see the differences in the media. Give this media a try.

Posted on Jun 24, 2008

rhozel2010
  • 267 Answers

SOURCE: The dvd recorder will not recognize any discs. It

Hi! there are many reasons why a dvd is note reading. 1. dirty pick up lens, 2. defective spindle motor, 3. defective ribbon wire, 4. defective pick-up lens and defective mpeg board. but first things first try cleaning your pick-up lens with a cd lens cleaner.

Posted on Oct 16, 2009

  • 1 Answer

SOURCE: jvc dvd player no disc error

Hello!

I did have a similar problem. It was solved by cleaning the laser lenses/prisma. You have to dismantle the whole pick-up the to see the laser lenses.

There is one lens which is held by couple wires and below there is prisma/mirror.

I did use ear-cleaner-stick and desinfection liquid (with alcohol) for cleaning. Now it works!

Posted on Nov 27, 2009

  • 1 Answer

SOURCE: LG HDD DVD recorder RH7521W is not able to read

Mine had a similar problem. I assumed there might be some dust on the laser. I used an air compressor and pointed it at the DVD slot as it was opening and closing to blow some air around inside the unit (and hopefully dislodge any dust). It worked. The discs that would not play before did play after. I didn't have the air compressor nozzle too close to the opening as I didn't want to dislodge anything I wasn't supposed to. If it was dust on the laser, you might be able to clean it in other ways, such as removing the cover and using a cotton tip (take power off first!). That would have been my approach if I didn't have an air compressor.

Posted on Feb 02, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My Avion dvd recorder model AV-DVR100 will not recognize any DVD's It will not recognize the dvd cleaning disc. Could it be hooked up wrong. Frank


It could be that the dirt on the lens is too bad. You might have to take the top off and clean the Lens with Servisol Video 40 or other lens cleaning fluid. However the lens can also be damaged by a tiny piece of grit hitting it a high speed. Only observation by a powerfull magnifying glass will confirm this.
Another problem could be damage to lens carriage unit, so it can't move to read the disc.

Jan 29, 2013 | DVD & Blu-Ray Players

4 Answers

Doesn't recognize disks anymore


i would try lens cleaning cd 1st ok might be dirty lens just cant read it if not that try firmware update to the unit thx nick

Feb 04, 2008 | Lite On LVW-5005 DVD Recorder

1 Answer

I have an DR275 LG DVD recorder. For some reason it stopped playing DVD discs. But it will play anything else you put in it I have cleaned the heads switch it of by the power as well. What could...


The laser mechanism has a number of optical components, not just the lens. There also additional fixed lenses and mirrors inside the laser unit which are very difficult to access. If sufficient dirt builds up on these components then the dvd laser may not work properly. Unfortunately it is very difficult (or even impossible) to clean these parts.
Another possible fault is that the CD laser is usually separate to the DVD laser and the DVD laser is no longer working properly, while the CD laser is still OK. In this case, the unit is definately not repairable without replacing the whole laser unit (not a readily available item and not likely to be cheap).
If the unit is out of warranty, your cheapest option is to buy a new DVD recorder.

Jun 16, 2011 | LG DR275 Recorder

2 Answers

Will play cd video, but will not play dvds


The Laser Pickup Assembly is defective and must be replaced, the dvd discs require higher precision when it includes audio and video signals together, the only other possible way is attempt to clean the laser pickup lens with a Q-Tip and rubbing alcohol, but it is long shot.

Jan 03, 2011 | LG RH177 DVD Recorder/HDD Recorder

1 Answer

Returns error message :Unknown Disc. Please Check Disc Again" The DVD disc plays on other DVD players with no problem.


Problem may be reset needed, or lens need cleaning, or dvd recoreder worn out. Reset is pull the plug from the wall for 5 minutes. Turn it back on after reset to load firmware again, may work after that.. TDK makes lens cleaner. LG uses fan so, dirt can get into dvd recorder lens. If the tray moves out wiggly, laser assembly may move wiggly too. Replace dvd recorder which is a dvd+-rw regular ide unit from computers.

Aug 20, 2010 | LG RC-197 DVD Recorder/VCR

1 Answer

Dr787t won't play disc. Player won't recognize


You can try to stop this by dis-assembling the unit to gain access to the laser and you can clean the laser using a cotton bud or cue tip, if that doesnt solve the issue, what you can do is with the case off, put in a dvd and see if it spins, and also note if the laser is lighting up, if it isnt lighting up or if the disc isnt spinning you may need to replace the dvd loader of the unit.
If the laser doesnt light up and the disc doesnt spin its possible you may need to replace the MPEG Printed Circuit Board which you will fing attatched to to the dvd loader via small ribbon cables, be carefull when removing these if you need to remove them or a seriens of small plugs. I hope this helps. Good Luck.

Dec 06, 2009 | LG DR787T DVD Recorder

1 Answer

My DMR-E80H will no longer record onto blank DVDs


One solution is to clean the laser lens. Try using one of those lens cleaning CDs.

Also, sometimes the DVD may slip on the spindle, which may cause reading errors. Spindle cleaning usually involves taking the machine apart.

Oct 04, 2009 | Panasonic DMR-E80H DVD Recorder

1 Answer

Player won't play any disc now


Time to look inside the dvd player. try readjusting the variable trimmer under the laser lens of the dvd player assembly. It is usually located under the lens assembly. try to adjust the lens at every 1 degree angle up to +/-5deg. sometimes it can be done. if not. time to change for new lens. damage lens is caused by using pirated DVDs or bad disc as the lens is trying to read the data on the cd.
guest.

Mar 13, 2009 | JVC DR-MV7 DVD Recorder/VCR

2 Answers

Dvd "unknown disc" message coming up


Have you tryed to use a lens cleaning disc yet. The laser lens on these players and recorders alike, must have the lens cleaned every oince in awhile. If that does not help, most likly you have a bad laser pickup assembly and you will need to replace the plaer as to have that repaiered, you could buy a new unit. Good Luck

Mar 23, 2007 | Daewoo DV-6T955B DVD Player/VCR

Not finding what you are looking for?
DVD & Blu-Ray Players Logo

Related Topics:

142 people viewed this question

Ask a Question

Usually answered in minutes!

Top DVD & Blu-Ray Players Experts

kakima

Level 3 Expert

96467 Answers

The Knight
The Knight

Level 3 Expert

68229 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a DVD and Blu-Ray Player Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...