Question about Dual DWM-3900 System

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Home Theater problem

I have a Panasonic Home theater system with 5 disk cd changer and dvd. I have had it about 7 years, gift from an old boyfriend who installed it and I have enjoyed many hours of movies and music. Unfortunately, the BF is not around to ask for help, and I'm a dummy with electronics.I watched a dvd one night last week. The next night I put in another to watch and after it tried to read (?) the disk, it said no disc. I of course tried another, and also tried some music cd's with same message. The changer spins/moves, but then I get the error if a disk is put in. The tuner and speakers still work with the TV. I get mixed messages on to use or not to use, a cd/dvd laser lens cleaner disk, I also didn't know the system should be thoroughly cleaned periodically, (not that I know how), and have also been told that if I take it in for repair, I could be overcharged, told something needs replaced that really may not, etc. Being female, I have found this to be true in many areas of repairs, etc. Yeah, I could probably, in a few months, afford to buy a new system, but would never in the world figure out how to hook up properly. The ex has this one set so you cant even see the speaker wires snaked behind paneling and along beams in my cathedral ceiling room.
SO, is there any advice on troubleshooting that I could do? Would greatly appreciate any help...

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It seems like u have a dirty optical pickup ( which means the laser head ) which is used to read data from the cd. Most of the time it's dirt and if u did not cleaned it with a lens cleaner weekly, u a re going to take it apart once u get "no disc" error.
If u are upto it I can guide u, but i doubt it. Most of the time the laser unit can be accessed easily by taking the cover and cleaned with just a cotton bud with a light touch on the focus lens.
Still u need to be familier with it, if are going to take it apart.
And yes all it might need is cleaning, and the service guy cud overcharge u by saying he replaced the optical unit....so and so.. hehe
If u have a camera take a pic and sent it to me or we can chat, if u are like to do it urself
Cheers
Rifaa

Posted on Nov 08, 2008

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----------------
Product Features and Technical Details
  • Dolby Digital, Dolby Pro Logic II, and DTS-decoding home theater receiver with 5 speakers and a powered subwoofer
  • 35 watts per channel x 4 "tallboy" speakers, 140 watts for the center channel, and 150 watts for the subwoofer
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  • Magnetic shielding for distortion-free placement near a TV or computer monitor
  • Includes digital FM/AM tuner and a universal remote control
Technical Details
  • Brand Name: Panasonic
  • Model: SC-HT900
  • Output Wattage: 390
  • Component Type: Home theater system
  • Audio Output Mode: Surround Sound
  • Surround Sound Effects: Super Surround Sound
  • DVD Type: DVD changer
  • Built In Decoder: Dolby Pro Logic II, Dolby Digital, DTS decoder
  • Remote Control Description: Universal remote control
  • Optical Digital Input: Yes
  • Audio Input: None
  • Tuner Technology: Digital
  • Radio Bands Supported: AM/FM

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