Question about Denon Audio & Video Receivers

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DENON DCD-825 CD Player started to play certain CD's no and again. However on play it shows it's on track 01 but fails to play at all. Is it worth mending?

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  • Master
  • 2,712 Answers

Try using a lens cleaner and see if that helps. You can purchase one from any electronics store.

You can also try a hard reset: Unplu the device from the power socket, wait about 10 minutes and plug it back in.

If neither of the two suggestions work, you'll probably have to get your piece serviced.

Hope that helps! Should you have any further questions, please post them here.

If you are satisfied with my solution or have no further queries, please take a moment to "Accept" this solution.

Thank you for using Fixya!

Cheers!
IrishDruid

Posted on May 22, 2008

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  • Denon Master
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It is a dirty lens problem

Posted on May 22, 2008

  • 1 more comment 
  • Ginko
    Ginko May 22, 2008

    If it happens always with same disk (or disks), then the disk is either dirty, scratched , or faulty.
    If
    disk is dirty (sometimes you cannot even see it but they are dirty),
    try cleaning the disk with cold water, and rinse well with a soft
    cloth, ensuring not to leave wet spots or cloth hairs.
    Done this try the disk again.
    If it is not the disk, then usually it is the lens. In this case you will have same problem with majority of your cds.
    To clean the lens start using a dvd cleaner and cleaning solution. This is a mild way to clean lens, often it is not enough.
    The complete lens-cleaning procedure involve opening the defvice, acessing the lens pickup, and manually

    cleaning the lens with cotton and isopropyl alcohol.



  • Ginko
    Ginko May 22, 2008

    As simple solution you can also try blowing some canned air on the lens. If this and the lens cleaning kit does not work, you should remove the cover, access the lens pickup, and perform a direct cleaning with isopropyl alcohol and soft cotton.
    If the lens is not dirty but scratched or opaque you may need to replace the lens pickup, in this case the job may not be worth.

    Here is how the inside looks like on a Denon similar model:

  • Ginko
    Ginko May 22, 2008

    You should have accepted best solution, the accept in bold from other expert was deliberately misleading. Next time you use Fixya accept solution only when you are sure it contributes in solving the problem. This will improve our rating system.

    Regards


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I just bougth a marantz cdr 300 cd recorder,everything seems to be working fine, but I'm not able to listen what I just recordered on any other cd player.Marantz cd 72 mr 2020.Thanks


Hi,
It sounds like you haven't followed the last step to the burning procedure. All you need to do once you've completed burning your disc is to Finalize the disc. Read below why you need to finalize as well as the steps to follow in order to finalize the disc.
Hope this helps ;)
How to Finalize Finalizing is writing the TOC (table of contents) on a disc so a CD player can recognize the number of tracks, the total time for each track, and their location on the disc. A recorded disc must be finalized to playback on a standard CD player. Once finalized a CD-R disc can be played on CD players that support CD-R playback. CD-RW discs can only be played on CD players that support CD-RW playback. Consult your CD player owner's manual to confirm supported formats. Finalizing is necessary to: • be able to play a recorded CD-R or CD-RW disc on a CD player • prevent further recording on a disc • avoid erasing tracks on a CD-RW disc • record text information onto a disc you record Notes: • A finalized CD-R disc can never be recorded onto again. • A finalized CD-RW disc can be unfinalized for more recording. • The CDR300 can play back unfinalized CD-R or CD-RW discs. • SYNC REC+FINAL mode automatically finalizes.
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1 Push Stop. The display shows the number of tracks and their total playing time. 2 Push FINALIZE. FINALIZE is displayed for about 3 seconds.

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I had exactly the same problem with my Denon DCD-910. Fixing it is easy, but it took me a while to find out;

In the power supply +10V and -10V unstabilized lines (in front of the 7805 and 7905 +5V and -5V regulators on the heatsink),

there are 2 ICP-N15 devices (IC protectors: very fast acting electronic fuses 0.6A). PCB component print is IC502 and IC503 if I remenber well. They tend to deteriorate over time and break, or a current peak could have made them tripping.

The +10V/-10V (+13/-13V really) is used for driving the loading/spindle/sliding motors and focus/tracking coils ONLY. +/-5V was still OK, that's why you can still see the display.

They have a TO92 transistor housing, but only 2 leads. ICP-N15 are hard to find; You could also use ICP-F15, but these have a different housing.

You could order the original ICP-N15 at utsource.net
An alternative could be to mount 2 polyswitches (also called multifuse), a PTC type current limiting and recoverable circuit breaker, like Bourns MF-R065, rated 0.65 A

I replaced them with 2 radial 800mA PCB solder mount fuses (1$/pc), and everything works fine again. Yet another piece of excellent equipment not to be thrown away ;-)

You have to unmount the PCB from the CD player housing (about 8 screws and disconnect all 10 connectors) to be able to replace the fuses.
While it is disassembled, check for broken solderings, especially on high power devices ( like voltage regulators mounted on heatsink or power transistors)


I hope it works for you too.


--Vincent

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