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Old 6th November 2006, 09:19 AM   #4511
SimontY is offline SimontY  United Kingdom
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Quote:
Originally posted by YoungSC
How do you guys rate OsCons and Panasonic FC capacitors?

Where are they best placed?
What the best way to implement them?

Thanks,

Simon(Oz)
Hi Simon

I've yet to try any os-cons, but I will soon be making an order which includes 6 of them. They'll be used in the RF/HF areas. I will report.

I'm also about to add 9 Black Gate standards, which at these values are only a little more expensive than big Panasonic FCs. 330u and 470u BG will be replacing mostly Pana FC 4700u. I will report on what changes I hear. I might get these put in tonight. The locations are CD15, CD16, CD07, CD04, C510, C511, C513, C120 and C122 (in a CD63).

The 4700uF Pana FC used provided a sound smoother and fuller than the stock decoupling capacitors, but it's time to try even better.

I have 1000u BG Standard next to my op-amps and they work very well here.

Pana FC are also good of course. I use 33uF "bypass" underneath the op-amps in my preamp and they work well, much much better than no bypass cap at all.

Simon (UK)
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Old 6th November 2006, 09:25 AM   #4512
poynton is offline poynton  United Kingdom
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Quote:
Originally posted by markk02474
It only says CD-63SE, so its not the KI or 67SE, and really isn't that interesting at all! I actually bought two copies of the service manual. One in tatters that I've marked up, and the other in good condition. I have to white out a few notes on the SE sheets before scanning...
The KI sheet only lists the toroid transformer !

Andy
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Old 6th November 2006, 11:30 AM   #4513
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Quote:
Originally posted by YoungSC
How do you guys rate OsCons and Panasonic FC capacitors?

Where are they best placed?
What the best way to implement them?

Thanks,

Simon(Oz)
I used the FC's in my player. The FC is a Low ESR cap designed for high-speed switching applications. I placed them on all digital decoupling locations as well as the power supply. I placed them on the power supply since the digital circuitry is between the power supply and the analog section. Thus, I wanted the cap on the P/S more suited to handling the faster switching of the digital to keep it clean. The only section I would recommend a dedicated "analog" cap such as Cerafine or Black gate is the Op-Amp and DAC Analog decoupling.

Never tried the OsCons ...
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Old 6th November 2006, 12:01 PM   #4514
Glenn2 is offline Glenn2  United Kingdom
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Seen this?
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Old 6th November 2006, 12:13 PM   #4515
SimontY is offline SimontY  United Kingdom
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Quote:
Originally posted by Glenn2
Seen this?
OMG, people are buying that DP thing LOL.

They would be devestated to hear some of our players.
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Old 6th November 2006, 12:25 PM   #4516
Glenn2 is offline Glenn2  United Kingdom
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Quote:
Originally posted by SimontY


OMG, people are buying that DP thing LOL.

They would be devestated to hear some of our players.

My thoughts exactly!
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Old 6th November 2006, 12:31 PM   #4517
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Just did a quick Google on the David Price mods, so I'll post the links I found:

Hi Fi Wigwam thread

Decware thread

AV Forums thread

Interesting stuff. 1000!
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Old 6th November 2006, 01:16 PM   #4518
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Quote:
Originally posted by kmj
Hi guys. First I must appologise for asking stuff that with all probability already are answered but I am pressed for time.
Didn't have time for >4,000 posts?

OK, my suggestions are in order of importance:
Replace the following with wire: R613,R614,R615,R616, C657,C658. The resistors starve the opamps for power and the latter are unnecessary DC blocking capacitors at the output.

Put in the mounting sockets and try the other opamps. Will likely be better. Eventually get some LM4562MA's and pop them in.

Try your bypasses instead of CD12 and CD13 (DAC analog +5V) - use the larger film capacitors. Do these changes alone so you can listen for the differences - very sensitive location.

Each will bring you a long way forward, quickly.
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Old 6th November 2006, 01:46 PM   #4519
kmj is offline kmj  Sweden
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Quote:
Didn't have time for >4,000 posts?
Yeah, to get a grip of what is more important then others and on which type om machinery.

Thanks, I'll take a look at it.

(if you wonder what he quotes from I delited the post since I came to think of the fact that the result might be lost due to the speakers, sorry for bothering you )
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Old 6th November 2006, 01:51 PM   #4520
Mags is offline Mags  United Kingdom
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Default Marantz KI DP internal shot

Check out this thread for some internal pic's of the DP mod's!

http://www.hifiwigwam.com/view_topic...light=cd63+ki+

Mags
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