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DENON DCD-825 CD PLAYER stopped playing

Hi

It started play certain CD's now and again.

Recently it stop playing completely.

Is it worth repairing and what do you think the issues are?

Posted by on

2 Answers

Mine did the same and I cleaned the laser lens and it cured it

Posted on Sep 08, 2008

  • 2 more comments 
  • KEV P Jan 28, 2012

    that's the normal cure : so long as the lens is clean : and not cracked.... chipped, it should work very well : I just recleaned mine : cotton bud : or cotton bud and isopropyl alcohol seems to do the trick !

  • Vincent Nov 22, 2012

    Have a look here :

  • Vincent Nov 22, 2012

    http://www.fixya.com/support/t745494-den...

  • Vincent Nov 22, 2012

    Does the tray open ? If not, above link might help. else check tray switch inside and motor driver transistors (5 pairs of 2 on PCB close to front panel)

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Worse case scenerio is that the optics need to be replaced. These units use Sony optics i believe. The cost for optics can be anywhere from $15-$40. If the player has been good, I'd invest up to $75 to repair it. I think it is worth it.
Dan

Posted on May 22, 2008

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Posted on Jan 02, 2017

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1 Answer

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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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
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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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1 Answer

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Hi dr dray
Your player has a CDM12.1 laser transport fitted to it. They suffer a couple of problems that can be fixed that stop em from working so well. If you are handy with a screwdriver, then I can talk you through it.

regards
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1 Answer

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Hey Kelby,

I've had a similar experience where a DVD movie would be playing and suddenly my Denon would just shut off, I later discovered that my rear speaker cables were not correctly installed in the back so the reciever recognized it as a short and would just shut down. Just make sure your rear speaker cables are correctly installed (right to right and left to left and with correct positive/negative placement) and see if it still does it. If it's still happening, then I wouldn't know what it is. Good luck.

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