Given mine another tweak today. I fitted a SPower on the standard 5V rail as there are several 10K resistors that feed some voltage to the servo etc. While doing so I also lifted U133 to the CPU and fitted a 7805 there so that it was isolated from the new cleaner std 5V rail.
I can't tell any difference here at work and will need some home listening to see what's happened
Brent
I can't tell any difference here at work and will need some home listening to see what's happened
Brent
Well, from an older Ian's message who may have seen futur and send some infos before I needed it!
I know this is not right but I did fit regs while waiting for my decoder... so driver regs, I have 7.60 and -7.50V even if resistor values where the same... strange.
And also... a HF Amp reg! I've just removed the R505 and replaced the lytic by my reg.
It sound the same as your Error 10 wich... is the same here!
But I can't see from where another 5V is taken in HF Amp, and if I understand well it may be a good idea to remove it and let R505 go back home, right Ian and guys?
The flickering light of hope is brighter...
Matthieu
edit : many fried players... means many lonely remote controls ? PM me for an offer guy
UV101 said:
I know this is not right but I did fit regs while waiting for my decoder... so driver regs, I have 7.60 and -7.50V even if resistor values where the same... strange.
And also... a HF Amp reg! I've just removed the R505 and replaced the lytic by my reg.
It sound the same as your Error 10 wich... is the same here!
But I can't see from where another 5V is taken in HF Amp, and if I understand well it may be a good idea to remove it and let R505 go back home, right Ian and guys?
The flickering light of hope is brighter...
Matthieu
edit : many fried players... means many lonely remote controls ? PM me for an offer guy
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Back to factory 5V at HF amp, same, I'll try with the non-regulated +/-10V as I'll remove the regs when I'll move parts to a new PCB (a CD43 is on the way). But if I remeber well Glenn went as low as +/-7V there with great results.
I swear I won't mess that much with my soon to come CD40...
Matthieu
I swear I won't mess that much with my soon to come CD40...
Matthieu
Hi Brent,
Is there still room in that player??
I tested your C2 with the servo clocked this weekend. It's clearly an improvement! (but I guess you already knew that
)The soundstage has more depth, cymbals are less grainy and the overall impression is that the player sounds more "in control". It's like the player has pitch control and it's playing at -2%, very relaxed. Peace and quiet has come to the music. Absolutely a recommended mod.
Hey, this is all new to me! This is my first heavily-modded CD63! I'm going to insert the regs for the +/-10V soon...
Regards,
Ray
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I tested your C2 with the servo clocked this weekend. It's clearly an improvement! (but I guess you already knew that
The soundstage has more depth, cymbals are less grainy and the overall impression is that the player sounds more "in control". It's like the player has pitch control and it's playing at -2%, very relaxed. Peace and quiet has come to the music. Absolutely a recommended mod.
Hi Ray! This party started ages ago!
Although I must admit I've yet to get a C2, it's on the wish list.
Simon
ps - anyone else think the SAA7350 is a nice-sounding DAC chip (CD42)?
Yeah, I know... I was/am busy building ezDACs and Crescendo amps
I didn't have a CD63, so that didn't help either. With a nice KI in the house, some more possibilities are available. It's nice to fiddle around with the players again!
I wonder how it will sound when I hook it up to my new DAC...
Ray
I didn't have a CD63, so that didn't help either. With a nice KI in the house, some more possibilities are available. It's nice to fiddle around with the players again!
I wonder how it will sound when I hook it up to my new DAC...
Ray
Attachments
Thats what is in my CD850MKII which i think is almost identical. I had that player from new until last year! Its very laid back compared to a 63. The only mods I had in my 850 was the Trichord 4, op amps and caps. I have to say, I prefer the CD50 (TDA1541) series of player with these minor mods. I never modded mine enough to properly compare to the 63 or the 1541.
Also, they are used before tda1547 in cd17's (well at least in 2 of the 3 models). Also before a pair on 1547's in the Teac VRDS10
Mine was very relaxed but lacked detail (albeit I didn't realise at the time!). I think you'd probably be quite impressed. I had no nice regs or caps (other than on the op amps)
Also this dac was used in the pink triangle dacapo which is (so i beleive) an awesome sounding DAC! Another thread maybe Simon!?!?
Ray, that's a beast!! Tell us how it sounds when it's finished
Ian, I've seen that thread and started this one:
http://www.diyaudio.com/forums/digital-source/153566-marantz-cd42-repair-mods.html
The lack of replies suggest it's not a common player, although that didn't stop the CD650 thread going berserk
Simon
Ian, I've seen that thread and started this one:
http://www.diyaudio.com/forums/digital-source/153566-marantz-cd42-repair-mods.html
The lack of replies suggest it's not a common player, although that didn't stop the CD650 thread going berserk
Simon
Yeah, I know... I was/am busy building ezDACs and Crescendo amps
I didn't have a CD63, so that didn't help either. With a nice KI in the house, some more possibilities are available. It's nice to fiddle around with the players again!
I wonder how it will sound when I hook it up to my new DAC...
Ray
What a piece of work !!!
I have a CD72mkII, with this chip followed by a TDA1547. I think it sounds very nice already, and it's not fully modded yet. But the sound has a kind of calmness with the right opamps behind it.
The "beast" is a rebuild of my first ezDAC, only this time with discrete regs on the supplies and relais PCB with three digital inputs. I think it's going to be the heart of my system soon
Ray
Hi Brent,
Is there still room in that player??
I tested your C2 with the servo clocked this weekend. It's clearly an improvement! (but I guess you already knew that
The soundstage has more depth, cymbals are less grainy and the overall impression is that the player sounds more "in control". It's like the player has pitch control and it's playing at -2%, very relaxed. Peace and quiet has come to the music. Absolutely a recommended mod.
Hey, this is all new to me! This is my first heavily-modded CD63! I'm going to insert the regs for the +/-10V soon...
Regards,
Ray
Hi Ray
Not much room left no LOL
The servo clocking mod is fantastic, it removes alot of problems from the 63. Have you added good regs to the servo yet? This improves further.
Brent
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Yeah, I know... I was/am busy building ezDACs and Crescendo amps
I didn't have a CD63, so that didn't help either. With a nice KI in the house, some more possibilities are available. It's nice to fiddle around with the players again!
I wonder how it will sound when I hook it up to my new DAC...
Ray
That looks very nice Ray, relay muting too. Now for the boring bit - wiring it all up LOL
Brent
Loads to do on the TDA1547 chip too!
With that chip you can bypass the built in op amp output stage and replace with a DOS very easily! Also lots of 5v feeds to sort!