Marantz CD63 & CD67 mods list

[6h5c]

Ok, so it's somewhere in the mainboard. It could be something nasty like a broken track or a bad solder joint. As you last worked on the decoder area, it's likely the error is in that section. A scope would be very handy at this point...

Regards,

Ray

 

[grofus]

Ok, so it's somewhere in the mainboard. It could be something nasty like a broken track or a bad solder joint. As you last worked on the decoder area, it's likely the error is in that section. A scope would be very handy at this point...

Regards,

Ray

I'll have a look with a magnifying glass but do not have a scope. Thanks.

 

[Fidelity Audio]

Another tip if nothing is obvious is to run fresh solder onto the pads you have already soldered and apply a small amount of pressure onto the leg of the component. This sometimes highlights a broken track by the pad moving slightly.

Brent

 

[grofus]

Another tip if nothing is obvious is to run fresh solder onto the pads you have already soldered and apply a small amount of pressure onto the leg of the component. This sometimes highlights a broken track by the pad moving slightly.

Brent

OK, good tip. I won't get a chance before the weekend. Thanks for your help
Steve

 

[shepperd]

It's far too quiet here

 

[UV101]

Anyone know where the 63 KI's were made???

I've got one on eBay at the moment and I've been asked where it was made. I'm just wondering what the relevance might be. i.e. MKI's uk and MKII's Japan????? just a guess!

If anyone can shed some light, i'd be very gratefull!

cheers, Ian

 

[guido]

My 63ki says made in england at the back. It's one of the earlier models i think.

But i also think it's just made in singapore (or so), shipped to england and there only the transformer was installed.

 

[davidsrsb]

I had one (bought in the UK) that said made in Singapore and gave an address across the border in Johore Malaysia

 

[Audiohifi]

Hi

CD63 eyepattern adjustment, how do to go about
I can see the HF output pin near the transport, how to ajust so that it is 1.7V

Audiohifi

 

[6h5c]

Hi,

You have to adjust the laser current, with the tiny trimmer that's located on the flexfoil of the laser unit.

Regards,

Ray

 

[Audiohifi]

Hi Ray
Thanks for your help
Yes I can see the trimmer. The problem is how to know the currrent is up or down. The eyepattern on the manual looks nice. But when I hook up the scope, the pattern is not legible. Do I need to use a test CD to create the pattern

Audiohifi

 

[6h5c]

IIRC, CW is current up, CCW is current down. But you'll notice soon enough. Just give the trimmer a slight nudge and see what happens. A normal CD will work fine, but make sure you are not in a silent passage. The actual pattern is more blurry and noisy, that's normal. Use a decent scope probe and no unscreened leads.

Regards,

Ray

 

[Audiohifi]

Hi Ray

Adjusting the trimmer, the player can now read most of the CD's TOC and play
I think that's about all I can do. I wonder whether putting a CD with single tone say1kHz will help in easy adjustment of the eyepattern
Thanks

Audiohifi

 

[6h5c]

No, that won't make any difference. The HF signal amplitude remains the same. Don't use a CD-R, they are less reflective, only use an original CD. It will help to have one that is not curved, otherwise the signal will be quite wobbly and it will be difficult to set the required amplitude.

Have you cleaned the lens and the metal guide rod yet?

Regards,

Ray

 

[Audiohifi]

It is a new set. no cleaning should be required
The rods are smooth and coated with light grease I believe

Thanks and regards

 

[6h5c]

Oh, well in that case no cleaning is required .

Strange that it had to be adjusted though. It should at least read all discs without problems now. If not, something else is wrong.

Ray

 

[Audiohifi]

New set I meant that the laser is the new one
BTW in this mod thread, is converting the player to work as a transport included. With so many affordable DACs in the market, I am thinking of using it as a transport.
Any mod ideas will be appreciated

 

[6h5c]

Yeah, I got that part.

If you want to mod the player for digital-out only, you can leave out the mods for the DAC and analog section. I would recommend upgrading the power supply and the area around the servo, drivers and decoder. The digital signal is produced by the decoder, so it's not required to upgrade anything after that.

Regards,

Ray

 

[Audiohifi]

Hi Ray
Great. I have already done the quite a lot of mod around the analog section like Black gate and silve mica caps around the HDAM, RCA post NX BG coupling. Walt Jung super regulator for 5V supply. Tent clock etc.
Must admit that I am not so familiar with servo, driver and decoder section
I will greatly appreciate it if you can give a few pointers

Thanks and best regards

Audiohifi

 

[6h5c]

Have a look at the modifications lists on my website, there you'll find all the mods listed per section.

Regards,

Ray