Question about Sharp Audio Players & Recorders

1 Answer

I have a Sharp CD-ES900 CD Shelf System and when I turn it on it the lights flash and it powers on, but then it turns off about 3 seconds later. How do i get it to stay on?

Posted by on

1 Answer

  • 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
  • 2,071 Answers

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.
f 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 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.

Posted on Jul 15, 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

My display flashes Hello, Bass, Pops, etc when turned off. How do I turn that off


look for a button on the remote that says demo. should turn it off.

Dec 04, 2013 | Sharp CD-XP300 CD Shelf System

1 Answer

I have the sharp cd-sw330, it has no display and won't turn on but the timer just keeps flashing


replace swollen filters on power supply,if still not working output ic needs replacing also.

Nov 13, 2013 | Sharp CD-SW330 Shelf System

2 Answers

The power light is not coming on,only some timer light


IM NOT GETTING ANYTHINK WHEN I DO THAT NOTHING AT ALL ITS JUST THE RED LIGHT FLASHING :(

May 08, 2011 | Sharp CD-SW330 Shelf System

2 Answers

I have sharp mini component system cd-sw300h and can not switch the machine on . The timer light is flashing but I cannot seem to get the unit to turn on at all.


My sharp mini component CD es777 won't work. it only flashes a red light where timer is. I tried the remote timer but still no luck. Help

Apr 29, 2011 | Sharp Shelf System Shelf System

4 Answers

TIMER LIGHT BLINKING AND POWER IS NOT COMING ON CD-SW330


i have the sharp cd-sw330, it has no display and won't turn on but the timer just keeps flashing, i have done the bit it says about pressing the timer button then arrows and memory but that doesn't seem to work help?

Jan 09, 2011 | Sharp CD-SW330 Shelf System

2 Answers

Lights flash on the unit at night making it hard to sleep!


The power button does nothing in relation to this!!! Press the x-bass/demo button at the bottom of the remote. That should fix the blinking lights! :)

Feb 26, 2009 | Sharp XL-DK225 Shelf System

1 Answer

Won't Turn Off


when it says "hello" do all lights randomly light up? if they do, press "X-BASS"

Dec 09, 2007 | Sharp XL-HP515 CD Shelf System

1 Answer

Sharp-XLES50 Help...


If the unit stays on at a low volume and cuts off when volume is raised, then fan motor maybe defective. If it cuts off no matter what volume level it's on then output IC maybe at fault.

Nov 04, 2007 | Sharp XL-ES50 CD Shelf System

1 Answer

Philips magnavox fw-c1 3cd, 2 cassette, am/fm stereo


To stop the demonstration mode
• Press and hold stop (on the system
only)
for five seconds when the
system is in demonstration mode.
ª The demonstration will stop.
ª "DEMO OFF" is displayed.
ª The system will switch to standby
mode.

Feb 27, 2007 | Philips FWC1 CD Shelf System

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

155 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Audio Players & Recorders Experts

The Knight
The Knight

Level 3 Expert

71088 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

 Grubhead
Grubhead

Level 3 Expert

4706 Answers

Are you a Sharp Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...