Denon DCD1500

edward897 · 15th March 2004, 01:54 AM

Just found one of these at a thrift store. I want to tinker with it. What should I do to modify it? I'm going to start with the power supply by recapping it. Can I upgrade the op amps and dacs? If I can what will work in it?

Thanks,

Ed

peranders · 15th March 2004, 06:12 AM

This CDP from 1986 (mine is that old but works still after so many hours at work) has small potentials to be tweaked. The major drawback is a 7-pole (or was it 5?) LC-filter in a tin can. In 1986 the CDP was realy cool with oversampling but times are different now. The CD has one good property: Can handle scratched CD's rather well becuase of the slow laser pickup.

Test Pilot · 15th March 2004, 06:50 AM

Too bad it wasn`t a DCD-3560, that`s a killer-drive!

But the DCD-1500 shure can be improved too. Uppgrading trafos gives more than changing caps, start with analog-supply.

But the easiest way to uppgrade is to add a set of extra
RCA`plugs on the rear, localise the out-signal on the op-amp(s) and just run the signal from there(bypass).

Another simple uppgrade is to add a solid-core powercable.

Ok, that`s a good start

edward897 · 16th March 2004, 01:49 AM

Which pins on the chips are the outputs?

Ed

Test Pilot · 16th March 2004, 07:46 AM

That`s the funny part, if you don`t have a service-manual you just have to searc for them. I`ve used to do this with my system "playing", on low (!) volume, with a thin/soft little cable connected to the output you can take a "tour" inside your player searching for the best sound

Sounds scary? Just remember to do the ground-connection before you start searcing your op-amps!

Good luck!

PS.
Mybe you should write a letter to your family before doing this, just in case

peranders · 16th March 2004, 08:05 AM

Quote:

Originally posted by Test Pilot
Too bad it wasn`t a DCD-3560, that`s a killer-drive!

But the DCD-1500 shure can be improved too. Uppgrading trafos gives more than changing caps, start with analog-supply.

But the easiest way to uppgrade is to add a set of extra
RCA`plugs on the rear, localise the out-signal on the op-amp(s) and just run the signal from there(bypass).

Another simple uppgrade is to add a solid-core powercable.

Ok, that`s a good start

Let the DCD-1500 rest in peace

or have it at work or something.

peranders · 16th March 2004, 08:06 AM

Quote:

Originally posted by edward897
Which pins on the chips are the outputs?

Ed

I have the service manual if you are interested.

edward897 · 18th March 2004, 03:08 AM

Can you email the manual to me? edward897@yahoo.com

Ed

hanyu · 20th March 2004, 06:16 PM

can you email the manual to me plz?
ktvaudio@hotmail.com
thx a lot!

KCC · 24th March 2004, 03:02 AM

Well,I have a DCD1400 that does not read the disks in one end of the house but works perfectly in the other end of the house.And this is not a one time affair.I've tried this many times.Soon as I relocated the player to any other rooms in my house it stop reading any disks. Soon as I brought it back to my work bench it works without problems. The electrical outlet in my work bench is next to the fuse box.I've upgraded the output stage for this player. Anyone experienced such problem before?

15th March 2004, 01:54 AM	#1
edward897 diyAudio Member Join Date: Mar 2004 Location: tampa	Denon DCD1500 Just found one of these at a thrift store. I want to tinker with it. What should I do to modify it? I'm going to start with the power supply by recapping it. Can I upgrade the op amps and dacs? If I can what will work in it? Thanks, Ed

15th March 2004, 06:12 AM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	This CDP from 1986 (mine is that old but works still after so many hours at work) has small potentials to be tweaked. The major drawback is a 7-pole (or was it 5?) LC-filter in a tin can. In 1986 the CDP was realy cool with oversampling but times are different now. The CD has one good property: Can handle scratched CD's rather well becuase of the slow laser pickup. __________________ /Per-Anders (my first name) or P-A as my friends call me

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15th March 2004, 06:50 AM	#3
Test Pilot diyAudio Member Join Date: Oct 2002 Location: Norway	Too bad it wasn`t a DCD-3560, that`s a killer-drive! But the DCD-1500 shure can be improved too. Uppgrading trafos gives more than changing caps, start with analog-supply. But the easiest way to uppgrade is to add a set of extra RCA`plugs on the rear, localise the out-signal on the op-amp(s) and just run the signal from there(bypass). Another simple uppgrade is to add a solid-core powercable. Ok, that`s a good start

16th March 2004, 01:49 AM	#4
edward897 diyAudio Member Join Date: Mar 2004 Location: tampa	Which pins on the chips are the outputs? Ed

16th March 2004, 07:46 AM	#5
Test Pilot diyAudio Member Join Date: Oct 2002 Location: Norway	That`s the funny part, if you don`t have a service-manual you just have to searc for them. I`ve used to do this with my system "playing", on low (!) volume, with a thin/soft little cable connected to the output you can take a "tour" inside your player searching for the best sound Sounds scary? Just remember to do the ground-connection before you start searcing your op-amps! Good luck! PS. Mybe you should write a letter to your family before doing this, just in case

18th March 2004, 03:08 AM	#8
edward897 diyAudio Member Join Date: Mar 2004 Location: tampa	Can you email the manual to me? edward897@yahoo.com Ed

20th March 2004, 06:16 PM	#9
hanyu diyAudio Member Join Date: Mar 2004 Location: PRC	can you email the manual to me plz? ktvaudio@hotmail.com thx a lot!

24th March 2004, 03:02 AM	#10
KCC diyAudio Member Join Date: Mar 2002 Location: Edmonton	Well,I have a DCD1400 that does not read the disks in one end of the house but works perfectly in the other end of the house.And this is not a one time affair.I've tried this many times.Soon as I relocated the player to any other rooms in my house it stop reading any disks. Soon as I brought it back to my work bench it works without problems. The electrical outlet in my work bench is next to the fuse box.I've upgraded the output stage for this player. Anyone experienced such problem before?

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