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Boom box won't play CD

This Koss CD/Tape/radio no longer plays the CD, but sometimes the CD spindle will spin. I am guessing the lazer lens is worn out. Can this be replaced at home? Are such parts available? Could it be something else? How much does a lazer lens cost?

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The Laser is more than likely the problem, but you can only replace with the whole assembly due to alignment issues, not cost effective.

Posted on Mar 05, 2012

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Won't spin to load cd or play a cd


Most likely some dirt has go on the lens of the lazer, so it can no longer see a disc to switch on the motor to make it spin.

May 19, 2016 | Audio Players & Recorders

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I have 2 boom boxes where cd's spin but no sound.


Its probably a lens failure, its quite common, try cleaning the lens,

if all else fails, try turning the unit upside down and load the disc, sometime this for some reason - resets the lens if slighty out but its not fact, just something i heard

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If your CD is not scratched,the optical lens need replacement.

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Sony CFD-S33 boom box not playing cd's


HelloP
Insert a lens cleaning disc into the set and play it at leat three times. If the fault is due to accumulation of dust, the cleaning disc will clean it out and your set will be work again. If this does not help you, the laser pickup unit of the set is faulty, and should be replaced with same type and number. The lens cleaning disc can be bought from most of the electronic spare part selling shops at your twon, and won't cost more. OK.

Jan 19, 2012 | Audio Players & Recorders

1 Answer

Sony boom box model# CFD-So1 serial# 2813391 The CD part says there is no disc in. I tried several DISC WITH NO LUCK. Please help


This error "disc error", "no disc present" or " can\'t read cd". This all error are related to lens problem. If the lens is dirty or if the lens is got cracked or if the lens is getting blocked then it can happen. The lens is very thin glass material. You can say the lens is the "eye" of the unit. If the eye is dirty then it will not see the object. The unit needs to be opened carefully and this lens has to be checked. If any dust is collected clean it. Using the cd lens cleaner helps, but if the dust is got stuck hard or if its any other internal part then the lens cleaner will not help. If the lens is got cracked then the lens assembly has to be replaced.
You can use dry tissue to clean the lens. once the unit is opened. ------------ ------------- In most of the cases, this problem is not related to cd.But still get the cd checked in any other player too, this will confirm the fault. Also try other various cds in the boombox cd player and confirm. But if the cds not playing in other player too then its faulty cd.But this is very rare. Most probably the fault is related to boom box cd player. In the boom box cd player unit there are two main parts. One is cd spinning motor and other is cd reading lens(its also called "EYE" of the cd player).But many times the cd spins internally and does not play. If you can hear the noise of cd spin inside then its lens problem and not the motor. But if there is no spin noise in the unit then both lens and motor are to be checked. The motor is not spinning because its short/blocked or its connections are got loose. It has to be checked. The lens is not reading the cd, because its got dirty or its got cracked and faulty. The boom box cd player lens is made up of thin glass and its very delicate. Many a times dust gets collected on the lens, so the lens stops reading the cd and it do not play. Some times there is no dirt on lens but it gets cracked, if by mistake any pressure is applied on the unit or up-side down cd is placed in the tray or internal short circuit has occurred. These are few possibilities of lens not working. But in most cases its dirty lens causing this problem. SO open the tray by pressing the eject button, then unplug the unit from main power outlet, by keeping the cd tray open. Then take air blower and blow air in the unit. Please remove, if there is any cd in the tray while blowing air. Just blow air for few minutes. Then take a dry tissue and clan the cd placing tray externally and then reconnect the power and see, if that is helping or not. If the problem is same as before, then disassemble the unit and clean the lens manually by hand using dry tissue paper and then see if its helping. But take care while cleaning the lens with dry tissue you doesn't apply too much pressure on lens or any other parts. Also before removing any screw to disassemble the unit. Take a marker with you ready. Just mark the position of parts and screws before removing. If you have a cell phone with web cam in it then take a photo of the internal parts before moving any parts. Disassembly is not very hard but reassembling is not easy. So this pictures and marks with help you for reassembly. ----------But if lens is cracked internally then the lens assembly has to be replaced. If motor wires are loose then you can easily get it re-soldered by soldering machine. You can get it replaced from local cd /dvd player repair center. They have these parts with them. --------------- This should help. Thanks. Helpmech.

Aug 06, 2011 | Sony Boom Box With CD Player & Cassette...

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The CD player will play some purchased CD-s but will not play others. The ones that it will not play do NOT iniate the disc motor but a click is heard and the display reads NO DISC. I have cleaned the...


If you can disassemble the CAP(disc holder) and place it on the disc while it is on the spindle and at the same time push the (hidden)lid switch you will see the lazer"s lens move up and down while trying to focus on the disc. If the lazer see's the disk it will tell the motor to turn. If it dosn't see the disc it will not turn the motor. Some model will kick the disc to spin a little while trying to see the disc. This type of player can be tricked into seeing the disc if you spin the disc a little by hand when the lazer's lens is moving up and down. At that point in time it might see the disc and take over the motor and spin up to normal speed. If the disc is an illeagal copy sold as a original the quality of the disc could be the cause. If the player is very clean (no small hairs stuck to the glue that holds the lens in place) (never clean with a cotton swab, use a shammie swab with rubbing alcohol or isopropal 99%) the problem could also be that the lazer is just not strong enough and the whole lazer-motor assemble should be replaced. Older units could use 1 drop of light motor oil on the motor shaft at the bearing to help start the motor when the system kicks the disc to spin. If the player reads the disc at the time you manually spin the disc maybe a good cleaning and oiling is all that is needed. The disc spins clockwise. if the disk spins counter clockwise replace the whole assemble. Maybe simpler, just give the disc a good clockwise spin and quickly close the door and push play while the disc is still spinning. if it starts, there you go. Don't use caned air on the lazer assemble. it will blow the dirt further into the lazer mechanism under the lens and make matters worse! Good luck!!

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DVD recorder (R155) will not recognize discs!!!


there are two possibilities a deffective spindle motor and a worn out lazer lens.
clean first the lens with a cotton buds dip in an alcohol gently wipe the lens.you need to open the cover of the dvd in order for you to do the cleaning.if cleaning do not work replace the lens or check the spindle motor this motor is the one spinning the CD.be sure that the cd is spinning once played... good luck pease click the four thumbs up button for answering your free question

Sep 10, 2010 | Samsung DVD-R155

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I have a Kenwood music system (quite old ) cd player DP-322 after you load the disc it sometimes just plays 1 track or doesn't play at all if you open the draw and then close it and select random play it...


you need to have the lazer lense cleaned by a pro or buy a lens cleaning cd and load it about 5 times i think youl find it will fix your problem

cheers

sonic boom electronics australia.

Apr 21, 2010 | Audio Players & Recorders

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