Marantz CD63 & CD67 mods list - Page 1896 - diyAudio
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Old 1st January 2013, 12:22 PM   #18951
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happy new yr all
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Old 1st January 2013, 12:33 PM   #18952
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Hello everyone, and Happy New Year.

I have a question regarding the wiring of some output transformers in my CD6000; is this an appropriate thread to do so?

Thanks
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Old 1st January 2013, 01:52 PM   #18953
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Default HNY

Same

Anyway,
I can save some discarded stuff at my job, like thousand film caps, some FCs, PSUs and enclosures.
I wonder if these can be usefull for the CD-43 ; the TXs will do fine, just wonder how to fit them in, maybe they'll go external if I can't fit them in. It can also be great as I can smooth then with hundreds of standard 1000F Panasonic
Filter (from telecom gears) may or not... was used in front of a SMPS, maybe to avoid noise back on mains? Then better used before my Tripath SMPS...

Again, HNY!
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Old 1st January 2013, 03:20 PM   #18954
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Default Transformers.

Today I have completed my transformer unit and they will be fitted into my 63SE soon

Happy New Year to everybody and good health to all.
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Old 1st January 2013, 05:58 PM   #18955
Puffin is offline Puffin  United Kingdom
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Today I have been mostly listening to my wonderful modded CD63
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Old 2nd January 2013, 02:26 AM   #18956
Pocoyo is offline Pocoyo  Indonesia
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Quote:
Originally Posted by UV101 View Post
Is that picture your player? If so you have completely bypassed the HDAM and linked the output stage output direct to the output. If the output phonos are still connected to the PCB, you will still have the muting transistors in circuit and by linking those caps out will be feeding the sound into the output of the HDAM??

Std is
Dac > Opamp and filter > HDAM > DC blocking caps (silmics) > muting > phono sockets

Ideally you want
Dac > Opamp and filter > phono sockets

It looks like you have achieved a quite remarkable hybrid that I've never seen previously
DAC > opamp and filter > phono sockets > muting > links where the DC blocking caps were > HDAM (backwards and without power)

Either fit new sockets directly on the end of the output from the Opamp and filter section or removed the components that are now feeding the audio backwards into the muting stage, linked out caps and Dead HDAM!

Grab the manual and work out the signal path!!
Hi UV101

those picture was SimontY picture from page 11 post # 115
this picture above is taken from last mods from my cd

i desolder those caps, now is looks like freeway
after the laser just read a view cd so i change the laser
but looks like the white gear have some damage there
so i will wait for a new mechanical laser for my CD63KI

just go back from AD 823 to JRC 2114
OP 270 AZ and LM 6172 IN are waiting

Happy new year everyone
Best regards
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Old 7th January 2013, 10:36 PM   #18957
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Hi all ,
Happy new year just fitted a cheap clock to one of my 63s great sound but an annoying sound at switch off. needs a relay or muting ,n
cheers alan.
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Old 8th January 2013, 05:42 AM   #18958
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Quote:
Originally Posted by bikeral10 View Post
Hi all ,
Happy new year just fitted a cheap clock to one of my 63s great sound but an annoying sound at switch off. needs a relay or muting ,n
cheers alan.
I have the same problem as yours and is considering fitting this :

DPDT Signal Relay Module 12Vdc TAKAMISAWA RY12W-K Relay - UK SELLER - #885 | eBay
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Old 8th January 2013, 07:30 AM   #18959
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Quote:
Originally Posted by higlander View Post
I have the same problem as yours and is considering fitting this :

DPDT Signal Relay Module 12Vdc TAKAMISAWA RY12W-K Relay - UK SELLER - #885 | eBay
HI,
By bypassing hdam and removing muting trannies and blocking caps causes this problem,But want to keep the less is more aproach in the signal path.
May have to live with it and switch amp off first.
Also ran the opamps and servo from a car battery amazing results.
cheers alan
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Old 8th January 2013, 11:10 AM   #18960
6h5c is offline 6h5c  Netherlands
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Alan,

The relay contacts are not connected in series with the signal, so there's no loss involved. Instead, they connect the outputs to GND when muting is active. You have to connect two 47ohm resistors in series with the ouputs though, you can't short the outputs hard to GND directly. But this was already the case in the original player (2x 100 ohms in series).

Ray
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