Question about Technics SCEH790 CD Shelf System

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Technics compact disc player broken

MY CD PLAYER WILL NOT ACCEPT ANY CD's AND COMES UP ON AMPLFIER AS ERROR AND DC TRAY COMES OUT BUT DOES'NT RETURN ON IT'S OWN

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  • Anonymous Feb 04, 2009

    my problem is on the cc/dvd player on the sldv250 model it wont play cd/dvd just shows no disc , any help please , john19norwich@hotmail.co.uk

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How do i connect all of the seperates together

Posted on Apr 01, 2009

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Is it all cd or just new burned ones try older orginal cd once still does it bad tray man on this dought technic sells ust tray player on this model

Posted on Oct 07, 2008

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Disc Tray will not open . There are no Cd's in the player. It looked like a tray came loose and before I could keep it open it closed. Now the disc tray door is stuck


The unit will need to be dis assembled and repaired by a technician. One of the plastic gears may be broken or misaligned. If you are mechanically inclined you could attempt the repair yourself but be careful not to loose any of the parts.

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CD deck


That means that there is a mechanical error concerning the tray gears

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Everytime I try to open the disc tray it flashes either EX-Change or mechanical error and won't open


I have a Sony MHC-GX555 stereo and every time I try to open the disc tray it either flashes EX-Change or mechanical error and it won't open.

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2 Answers

CD unit unit displays ''No Disc'' when there is a disc in slot 1


What does it do if you put 3 discs in and select each one? You don't say what it does with the other two trays. It would help to know that they work. If not, you have a bigger issue. Let me know.

Apr 03, 2009 | Sanyo Audio Shelf Systems

1 Answer

Cd player does not play; discs move around but tracks are not on


Make sure the optical eye is clean, Use cotton swap. If That doesn't work and you are handy do the following






To start with, make sure that your CD player is suffering from the problem that this method is designed to fix. This method is designed to fix a misaligned CD read head. The common symptoms of this problem are:
1. You place a CD in the player, and it spins for a bit but never finds the list of tracks on the CD and returns some kind of error. This problem may occur regularly or intermittently.
2. CDs tend to skip frequently, even if they are clean and in good condition.
So if this sounds like your problem, then this method is for you. You should however bear the following in mind: only attempt to fix the CD player if the fault occurs frequently and is really annoying; i.e. if you are thinking of throwing the CD player away. To carry out the repair you will have to open the case. This will certainly render void any warranty the device might have, so if your player is still under warranty, don't open it. Simply return it to the retailer. Finally, for your safety and that of your equipment be sure to disconnect your CD player and remove any batteries at least a half hour before you start work. Finally, although I have had consistent success with this method, everything you do is at your own risk and is your own responsibility. I provide no guarantee of any nature regarding this method.
Your first job is to open up the case of your CD player. This will be more or less difficult depending on the type of device. If you are lucky and have a Hi-Fi separate type device then it will be pretty simple; if you have a mini or midi-system with a built in CD player this could be trickier. Fixing portable CD players (e.g. a Discman) is probably only for the uber-patient as it is likely to be very fiddly. The main thing required here is patience and a methodical approach. As you remove screws put them somewhere safe; line them up in the order in which you removed them, or make notes of what goes where. You may reach a point where you think you have taken all the screws out but you still can't get into the case. Here, patience is still the key. Check under stickers for hidden screws or clips. Try and work out where the case is held together. Use the minimum force possible at all times.
Now, assuming you have managed to get into the case successfully, and have got access to the CD player we can continue. By now you will probably be able to see the CD tray (the bit that holds the disk) and also some kind of arm which hovers over the disk when the tray is closed. There will usually be a small motor for moving the lens over the disk, and attached to this or nearby there is typically a small circuit board.
On this board, or in any case rather close to the read head there can usually be found a small potentiometer (sometimes referred to as a pot). This will usually be a small square component with a plastic disk on top, and this disk will have a slot which is designed to take a small flat head screwdriver. This is what we will be adjusting.
However, before doing this it is advisable to use an indelible marker pen (magic marker) to mark the current position of the Potentiometer, so that it can be returned to its original position if necessary. With this done then we are ready to start fixing your CD player.
This is essentially a trial and error process. You make a small adjustment to the position of the potentiometer, then try the CD player and see if it is improved. In my experience generally only small adjustments (less than plus/minus 30 degrees of rotation) are usually necessary.
Depending on how comfortable you are working with electrical devices there are different ways of going through this trial and error process. If you are unsure of yourself or particularly safety conscious then will probably want to put the case back on the CD player each time you test it because you will probably have to plug it in to do this. However, as you have probably guessed it is not necessary to put all the screws back in.

Mar 14, 2009 | Aiwa NSX-DS55 CD Shelf System

1 Answer

Rca 5cd changer tray


first basic step if u still haven't tried this yet is to turn the power button off then unplug the appliance then plug it again and turn the on the power button for the compact disc unit to initialized its program on its CPU and memory devices.
second step: if you can manage to open u'r mini component, check the mechanical moving parts of cd rack if there's any broken parts or missing parts.
third; if you still have the remote control try using it.
4rth; don't forcibly close it manually it will just worsen the problem. hope this tips help ;-)

Feb 19, 2009 | RCA RS2664 Shelf System

2 Answers

CD Player returns NO DISK code


looks like the OPTICAL LEN part D.O.A. on you , I suggest to replace the OP LEN , AND SHOULD BE ABLE TO PLAY. hope this helps

Apr 19, 2008 | Sharp CD-BA150 Shelf System

1 Answer

Sharp mini system error code 20


The code CD20 means Tray error. The cd mechanism will have to be reset by a serviceman .

Jan 06, 2008 | Sharp Multi-System Mini Component System...

1 Answer

When we try to play a disc frpanasonic sa-ak28


CD lens may be defective or just need cleaning.

Dec 10, 2007 | Panasonic SC-AK33 CD Shelf System

4 Answers

CD Player Tray Spins Continuously With or Without Disk


Yuo didnt mention if it was used or new,. If it was new I wouldnt mess with the unit and take it in under warranty, as there is no quicky fix for this one. Its going to turn out to be a problem with the disc motor servo circuit or the microprocessor. Good Luck

Aug 06, 2006 | Teac DC-D2831 CD Shelf System

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