Revive a heavy weight Denon DCD3300

RCruz · 15th November 2009, 07:07 PM

Hi all

I recently received a DENON DCD3300 for evaluation but It seems to have a lazer problem... (It does not read all the discs and the ones it does produce a scratching noise in phase with the rotational speed of the disc).

Can anyone please comment on the availability of a lazer replacement ?

Regards

Ricardo

stephensank · 16th November 2009, 05:11 AM

The wonderful old DCD3300 has a number of common foibles, but it sounds like you may just have one of them in yours, at least at the moment. It's the upper shaft bearing on the platter motor. Although the lovely brushless/coreless hall motor used for the platter spin has a superb sealed ball bearing unit at the bottom end of the shaft, the top bearing is a phosphor-bronze sleeve bearing, and tends to cause trouble. If you're lucky, you will be able to revive it simply by taking the motor apart(it's built into the main transport sub-chassis) and clean out & re-lubricate that sleeve bearing(I use Prolong Precision Oil) and that will cure the problem. If you're unlucky, the bearing will continue to cause trouble & may be hard to revive, if at all.

RCruz · 16th November 2009, 10:14 AM

Thank you for the precise information !

In reality I really noticed a strange noise comming from the motor and it does not feel free when turned by hand.

I will disassemble it and report the results

Ricardo

Malefoda · 16th November 2009, 09:28 PM

Pics Pliz

RCruz · 16th November 2009, 10:41 PM

After oiling the motor main bearing the beast stopped reading... it also stopped spinning... so I believe the bug is enormous.... I will not go on until I find a suitable lazer replacement.

Can this machine be modded to accept a different mech (Philips?)

Ricardo

PS:
It played two discs before dying and I believe it is good but not as good as my über CD53

It has wonderfull female voice reproduction, very full and fast bass, good stereo image spread but can be disturbed with loud / complex passages and it lacks the super detail I am getting with the CD53.

Salar · 17th November 2009, 08:04 PM

I have a DCD-1700, which is said as being the same as the DCD-3300, but with an inferior power supply nd no copper shielding.
The laser is KSS-123A from Sony, very common in this times in many brands.
Hope you did not kill it when disassembling, the laser has to be protected from electronic discharge and two contacts on it have to be soldered together before any cable connections are opended.
All the best, Sal

RCruz · 17th November 2009, 10:18 PM

I did not disassemble it yet

I just pumped some oil in the motor bearing using a spray....

I believe the motor can be recuperated so I will search for the KSS-123A.

Can you please explain what contacts must be shorted before disassembly ?

Thank you so much Salar.

Ricardo

Salar · 18th November 2009, 06:47 AM

Hello Ricardo.
it is two or three metal plates close together on the bottom of the Laser´s pcb.
Just shorten them with a blob of solder before disconnecting.
But I am also planning to sell my working DCD-1700, so maybe you are interested and could use it´s transport as a replacement.
Price would be 150 Euros + shipment.
All the best,
Salar

RCruz · 18th November 2009, 09:38 PM

Thank you Salar but this CDP is not mine so I must meet with the owner and get his opinion

15th November 2009, 07:07 PM	#1
RCruz diyAudio Member Join Date: Sep 2006 Location: Cascais Blog Entries: 1	Revive a heavy weight Denon DCD3300 Hi all I recently received a DENON DCD3300 for evaluation but It seems to have a lazer problem... (It does not read all the discs and the ones it does produce a scratching noise in phase with the rotational speed of the disc). Can anyone please comment on the availability of a lazer replacement ? Regards Ricardo

16th November 2009, 09:28 PM	#4
Malefoda diyAudio Member Join Date: Jun 2006	Pics Pliz __________________ Old simple TT, cheap CDP with wise mods, Class T amp at its best: music!

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16th November 2009, 05:11 AM	#2
stephensank diyAudio Member Join Date: Oct 2006	The wonderful old DCD3300 has a number of common foibles, but it sounds like you may just have one of them in yours, at least at the moment. It's the upper shaft bearing on the platter motor. Although the lovely brushless/coreless hall motor used for the platter spin has a superb sealed ball bearing unit at the bottom end of the shaft, the top bearing is a phosphor-bronze sleeve bearing, and tends to cause trouble. If you're lucky, you will be able to revive it simply by taking the motor apart(it's built into the main transport sub-chassis) and clean out & re-lubricate that sleeve bearing(I use Prolong Precision Oil) and that will cure the problem. If you're unlucky, the bearing will continue to cause trouble & may be hard to revive, if at all.

16th November 2009, 10:14 AM	#3
RCruz diyAudio Member Join Date: Sep 2006 Location: Cascais Blog Entries: 1	Thank you for the precise information ! In reality I really noticed a strange noise comming from the motor and it does not feel free when turned by hand. I will disassemble it and report the results Ricardo

16th November 2009, 10:41 PM	#5
RCruz diyAudio Member Join Date: Sep 2006 Location: Cascais Blog Entries: 1	After oiling the motor main bearing the beast stopped reading... it also stopped spinning... so I believe the bug is enormous.... I will not go on until I find a suitable lazer replacement. Can this machine be modded to accept a different mech (Philips?) Ricardo PS: It played two discs before dying and I believe it is good but not as good as my über CD53 It has wonderfull female voice reproduction, very full and fast bass, good stereo image spread but can be disturbed with loud / complex passages and it lacks the super detail I am getting with the CD53.

17th November 2009, 08:04 PM	#6
Salar diyAudio Member Join Date: Feb 2006 Location: Berlin	I have a DCD-1700, which is said as being the same as the DCD-3300, but with an inferior power supply nd no copper shielding. The laser is KSS-123A from Sony, very common in this times in many brands. Hope you did not kill it when disassembling, the laser has to be protected from electronic discharge and two contacts on it have to be soldered together before any cable connections are opended. All the best, Sal

17th November 2009, 10:18 PM	#7
RCruz diyAudio Member Join Date: Sep 2006 Location: Cascais Blog Entries: 1	I did not disassemble it yet I just pumped some oil in the motor bearing using a spray.... I believe the motor can be recuperated so I will search for the KSS-123A. Can you please explain what contacts must be shorted before disassembly ? Thank you so much Salar. Ricardo

18th November 2009, 06:47 AM	#8
Salar diyAudio Member Join Date: Feb 2006 Location: Berlin	Hello Ricardo. it is two or three metal plates close together on the bottom of the Laser´s pcb. Just shorten them with a blob of solder before disconnecting. But I am also planning to sell my working DCD-1700, so maybe you are interested and could use it´s transport as a replacement. Price would be 150 Euros + shipment. All the best, Salar

18th November 2009, 09:38 PM	#9
RCruz diyAudio Member Join Date: Sep 2006 Location: Cascais Blog Entries: 1	Thank you Salar but this CDP is not mine so I must meet with the owner and get his opinion

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