Marantz CD63 & CD67 mods list - Page 1334

Fidelity Audio · 19th October 2009, 08:38 AM

Still no decoder!!!

That's not good

Brent

Malefoda · 19th October 2009, 09:07 AM

Hi Brent,

I got the second one Lee kindly sent me as the first is somewhere but home, and this one is not even making the disc motor running.
And I can't reach Ian who kindly offer to send me one, that's too sad :'(

Matthieu

Fidelity Audio · 19th October 2009, 09:12 AM

Oh bad luck.

I will try to get hold of Ian so he can contact you.

Brent

Thomo · 09:39 AM

Hi Matthieu, I am glad that arrived ages ago!

edit: I expect the fault is elsewhere, because I'm pretty sure that chip was fine. Sorry to hear you've had no joy.

Lee.

Fidelity Audio · 19th October 2009, 09:36 AM

Not really. You do use the Grimboloid postal service

Brent

Thomo · 19th October 2009, 09:39 AM

What you on about?

Lee.

Thomo · 19th October 2009, 09:41 AM

I did another couple of mods this weekend: Silvered Mica caps on the servo and the HF Amp. I also swapped the 470uF Oscon SEPC on dac analog to 1000uF BG FK.

I got better, cleaner treble and a touch more separation and bass.

Cheers, Lee.

Malefoda · 19th October 2009, 11:29 AM

Thanks Lee & Brent,
tray moves, mech moves up & down, radial is also OK, only the disc does not spin. Maybe too much damages around there, but I've check pins and target continuity and it's OK so I don't see any onther problem, I'll have another look later.
Matthieu

UV101 · 11:54 AM

Hi Matthieu, sorry i've been illusive lately!

I do have a decoder chip that I can dig out. When I swapped mine, I found the problem was elsewhere. Check the whole signal path from the laser to the decoder using the service manual. My problem was in the HF amp area. The decoder chip will need the signal from the laser to spin the motor. Do you hear your laser focussing? Mine gave me very similar problems to you but it wasn't the decoder. I think there is a good chance that if Lee's decoder hasn't fixed the problem, mine won't either! I think you might need an oscilliscope to diagnose this problem! I think to be honest, i'd be on the look out for another player ready to start transplanting all the mods!

Thomo · 19th October 2009, 12:08 PM

Could it be clock signal too?

Lee.

19th October 2009, 08:38 AM	#13331
Fidelity Audio diyAudio Member Join Date: Dec 2005 Location: Doncaster England	Still no decoder!!! That's not good Brent __________________ Fidelity Audio - Home of quality products & upgrades - What HiFi 5 Star Headphone amp » Hifi World 5 Star Pre amp » HiFi Choice 5 Star Group test winner HPA-100

19th October 2009, 09:07 AM	#13332
Malefoda diyAudio Member Join Date: Jun 2006	Hi Brent, I got the second one Lee kindly sent me as the first is somewhere but home, and this one is not even making the disc motor running. And I can't reach Ian who kindly offer to send me one, that's too sad :'( Matthieu __________________ Old simple TT, cheap CDP with wise mods, Class T amp at its best: music!

19th October 2009, 09:12 AM	#13333
Fidelity Audio diyAudio Member Join Date: Dec 2005 Location: Doncaster England	Oh bad luck. I will try to get hold of Ian so he can contact you. Brent __________________ Fidelity Audio - Home of quality products & upgrades - What HiFi 5 Star Headphone amp » Hifi World 5 Star Pre amp » HiFi Choice 5 Star Group test winner HPA-100

19th October 2009, 09:30 AM	#13334
Thomo diyAudio Member Join Date: Nov 2006	Hi Matthieu, I am glad that arrived ages ago! edit: I expect the fault is elsewhere, because I'm pretty sure that chip was fine. Sorry to hear you've had no joy. Lee. Last edited by Thomo; 19th October 2009 at 09:39 AM.

19th October 2009, 09:36 AM	#13335
Fidelity Audio diyAudio Member Join Date: Dec 2005 Location: Doncaster England	Not really. You do use the Grimboloid postal service Brent __________________ Fidelity Audio - Home of quality products & upgrades - What HiFi 5 Star Headphone amp » Hifi World 5 Star Pre amp » HiFi Choice 5 Star Group test winner HPA-100


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19th October 2009, 09:39 AM	#13336
Thomo diyAudio Member Join Date: Nov 2006	What you on about? Lee.

19th October 2009, 09:41 AM	#13337
Thomo diyAudio Member Join Date: Nov 2006	I did another couple of mods this weekend: Silvered Mica caps on the servo and the HF Amp. I also swapped the 470uF Oscon SEPC on dac analog to 1000uF BG FK. I got better, cleaner treble and a touch more separation and bass. Cheers, Lee.

19th October 2009, 11:29 AM	#13338
Malefoda diyAudio Member Join Date: Jun 2006	Thanks Lee & Brent, tray moves, mech moves up & down, radial is also OK, only the disc does not spin. Maybe too much damages around there, but I've check pins and target continuity and it's OK so I don't see any onther problem, I'll have another look later. Matthieu __________________ Old simple TT, cheap CDP with wise mods, Class T amp at its best: music!

19th October 2009, 11:50 AM	#13339
UV101 diyAudio Member Join Date: Dec 2008 Location: Oxford	Hi Matthieu, sorry i've been illusive lately! I do have a decoder chip that I can dig out. When I swapped mine, I found the problem was elsewhere. Check the whole signal path from the laser to the decoder using the service manual. My problem was in the HF amp area. The decoder chip will need the signal from the laser to spin the motor. Do you hear your laser focussing? Mine gave me very similar problems to you but it wasn't the decoder. I think there is a good chance that if Lee's decoder hasn't fixed the problem, mine won't either! I think you might need an oscilliscope to diagnose this problem! I think to be honest, i'd be on the look out for another player ready to start transplanting all the mods! __________________ When Bitstream came out, I thought, “my God, what are we going to do...?” Ken Ishiwata http://www.hifisounds.co.uk Restek Fantasy, Audio Aero Capitole MKII, Focal and Kimber "Leave Nothing as Standard" Last edited by UV101; 19th October 2009 at 11:54 AM.

19th October 2009, 12:08 PM	#13340
Thomo diyAudio Member Join Date: Nov 2006	Could it be clock signal too? Lee.

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