Denon DCD-1560 with output problem

C

Chris01011

New Member
I was given a Denon DCD-1560 recently and told that it didn't work. The transport and display worked, and the disc was being read, but there was no sound output from any of the jacks, including the fixed, variable, and headphone outputs.

I let it play, unconnected to my receiver, for about 24 hours. Now it will play beautifully, but only for about 4 minutes. At around the 4 minute mark, the sound will cut out and I will hear occasional static, garbled output as though signals are being mixed internally, or just silence.

Any guesses as to what is wrong and how it could be fixed? Suggestions for further troubleshooting?

Thanks,
Chris
 
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You inherited a classic Denon cd player with a nice transport system.

When you say "..the disc being read", is the display showing the table of contents? meaning, it reads the number of tracks and then begins to play? Play means the timer increments.

The problem is something I haven't ran into much.

It's always easy to blame the laser getting old and it is affected by temperature. Some units are more sensitive to cold and some to hot temperature. Not that temperature is ever a problem, but for weakening laser it is. I have bought many cd players that play fine for a few minutes but after a while it does not.

My other guess is one or more opamps could be bad or the power supply

wsjoe
 
It is possible the DSP chip is bad. It's possible one of the supplies to the opamps is bad.
 
Right, the # of tracks are identified, the length of the disc is identified, and it will play perfectly without skipping for just under 4 minutes. There are no skips, no stutters, no lag, and then all of a sudden silence, or static, or brief sounds of overlapped tracks.

The unit has been in the same system since new, and was never stored in an attic or garage or anything like that.

Is it worth taking to a repair shop if necessary?

Thanks for the help,
Chris
 
I think it's worth the repair as long as the bill is $50-$100. If the laser is dead, then don't bother. One of my favorite workhorse cd player.
 
The laser power could possibly be dropping, Joe is right. Put a disc in and let it run, even after it stops playing properly. If it continues to count up in the display all the way to the end of the CD, the laser is ok. If it stops counting, the laser is toast. Even so, the DSP chip can mean a repair of over $100 if that is the problem. A power supply problem will be less.
 
dr*audio,

laser is no longer available and if it did, parts alone was $175 earlier this year.

I have 9 DCD-1520 and DCD-1560 with same laser problems.
 
wsjoe said:
dr*audio,

laser is no longer available and if it did, parts alone was $175 earlier this year.

I have 9 DCD-1520 and DCD-1560 with same laser problems.
Click to expand...

That's when it's time to buy a new player. Sigh. I have an Onkyo Integra DX5700 with a dead laser. No longer available.:tears:
 
Well, it looks like I might be ok after all.

I left the player on repeat for another 24 hours, and when I connected the receiver back up last night, everything was working perfectly. I listened to Boston for awhile, and there were no output drops at all. Just that great Denon sound.

The unit hadn't been played in a long time, so maybe it just needed a signal run through it for awhile?

Chalk one up to karma!

Chris
 
It didn't fix itself, you can be sure of that! The problem must be intermittent, possibly heat related. At least you know the pickup is ok.
 
"...or brief sounds of overlapped tracks..."

When there is no output, can you hear the laser moving back and forth? I'm likely to open mine up soon (different model however), due to a recent need to warm up for a minute or so...I think my issue is related to dirt build-up or aging grease on whatever the laser assembly moves on.
 
beekeo said:
"...or brief sounds of overlapped tracks..."

When there is no output, can you hear the laser moving back and forth? I'm likely to open mine up soon (different model however), due to a recent need to warm up for a minute or so...I think my issue is related to dirt build-up or aging grease on whatever the laser assembly moves on.
Click to expand...

No, the laser seems to work properly. The time continues to progress correctly, and I can skip to the next track, etc. There was just no sound output. The problem seems to have corrected itself for the time being.

Chris
 
Could it be a problem in the analog stage? The type of sounds make me thing about a failing transistor or capacitor.
 
You could play with focus gain and tracking adjustments. I have not looked at the service manual for a long time. Might be worth a try if the alternative is trashing it.
 
Nothing big to update - but you more experienced folks were right. Intermittent problems don't fix themselves!

If I leave it on all the time, sometimes it will play correctly, sometimes it won't. If I turn it on fresh, no sound at all. Not quite sure what the problem is, and I'm still thinking about whether I want to bother with a service technician.

Chris
 
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