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Participant

Join Date: Oct 2007
Posts: 2

"No Disk" Error For Audio CD's

10/25/2007 1:41 AM

Why does the JVC audio cd unit now 7 years old display "No disk" at times and at times plays the same cd without problems.

I tried a cd cleaner, it does not help.

I would like to know if there is an electronic sensor which need to be replaced.

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Power-User
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#1

Re: Audio cd

10/25/2007 5:11 AM

I'm not an expert but you may just have dust affecting the laser scanner. Clean that.

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Guru
Engineering Fields - Electrical Engineering - New Member United States - Member - New Member

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#2

Re: "No Disk" Error For Audio CD's

10/25/2007 10:09 AM

I don't think those cleaners do much good. I usually clean the laser lens with a cotton swap and alcohol (very carefully). The lenses are not always easy to get to, especially on multi-disc units. If cleaning the optics doesn't help, it may just be that the laser is getting weak. As the laser diode ages, it's output drops, and errors will result. The only fix for this is a new laser pickup assembly. I have replaced a few (around $30/US), but most times, it's not worth it due to the age of the unit.

Tom

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Join Date: Apr 2006
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#3

Re: "No Disk" Error For Audio CD's

10/26/2007 12:19 AM

I've come to regard all playback devices (CD players, DVD players, VHS players, Betamax players, and so on) as essentially Kleenex. Speedo Credo method - dump everything onto a big HDD on your computer, and back it up from time to time. You'll lose some fidelity using MP# format, but most folks wouldn't notice. Audiophile method - Reel to reel, or, believe it or not, HiFi Beta. Much time and trouble, but better audio quality, and the equipment is hell for strong and cheap now too.

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Join Date: Jun 2007
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#4

Re: "No Disk" Error For Audio CD's

10/26/2007 10:27 AM

Just dump the 7 years old ancient technology and buy a new one for another 7 years of confident and worry free operation. Laser kit for 35 dollars and I do not think every one can do by himself.

Regards;

Nadeem

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Guru

Join Date: Aug 2007
Posts: 548
#5

Re: "No Disk" Error For Audio CD's

10/26/2007 4:03 PM

It is ill and on its death bed. probably descard it and go for a newer , far better , DVD , BLUE RAY , MPEG3/4 technolgies . 7 years is a ancient technology its impractical to change the lens sensor assembley and mechanism , it won`t do any good for long run , also original components are things of past

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Participant

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#6

Re: "No Disk" Error For Audio CD's

10/29/2007 2:45 AM

Thanks to all commentators.

I tried the cotton swab and lens solvent, but it still the "no disk" message.

If I am sure the lens is the problem I might try replacing it. it appears reasonably accessible.

I think its time to take up the suggestion of putting everything on a hard disk and move up the tech ladder.

RAF

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#7

Re: "No Disk" Error For Audio CD's

10/30/2007 3:35 AM

The first thing we do is to check the power supply- there are many electros which degrade- we have test instruments- after this, there could be fault in control pcb- servo i.c.- there could be slipping load belt- there could be faulty limit/load switch- after all this, there could be faulty spin motor- or faulty optical block- there is an adjustment on the ob to increase laser (mark- increase- try)- no good?- without tester to measure laser output, it is safe to consider laser u/s- if can obtain cheap r/p do so- really these things are so unreliable for this reason!. Remember record players?- anyone could change the stylus, & they lasted for ever!.

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geomech (1); ktel60 (1); Nadeem0430 (1); Neil Kwyrer (1); RAF (1); tdesmit (1); vikas (1)

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