Marantz CD63 & CD67 mods list

Hmm well that's interesting. .... SimontTY believe me, this is a boxed CD67SE .... never touched by anyone.

Well, I live in Hong Kong and we have 240v, like the UK, NZ, Oz..... so it must be a step-down to the "red" tranny.

So what's the story I just keep as it is. right?

k.
 
jksmurf said:
Hmm well that's interesting. .... SimontTY believe me, this is a boxed CD67SE .... never touched by anyone.

Well, I live in Hong Kong and we have 240v, like the UK, NZ, Oz..... so it must be a step-down to the "red" tranny.

So what's the story I just keep as it is. right?

k.

I would get hold of a 63 63SE 67 or 67SE TX to replace or a 63KI tx if you can find one.
The SE tx are better than standard ones.
I dont like the idea of two tx has this may have an impact on dynamics.
Also there is 240v and 100V going across the cd player.
Brent
 
rowemeister said:
I would get hold of a 63 63SE 67 or 67SE TX to replace or a 63KI tx if you can find one.
The SE tx are better than standard ones.
I dont like the idea of two tx has this may have an impact on dynamics.
Also there is 240v and 100V going across the cd player.
Brent

Also might have some sort of extra filtering action on noise, which would be one positive aspect.

I'm just suprised compatability with the two main voltages wasn't built in to the original transformer.

I reckon Brent's advice is good though, a SE one. You can't buy the toroid it seems, people have tried.

Simon
 
SimontY said:
I'm just suprised compatability with the two main voltages wasn't built in to the original transformer.
Simon

The service manual shows various types of transformer. Some have 120V & 240V tappings but most don't it seems.

My old '63 had 230v and 240v options - which seems a little pointless to me.

Should be able to measure the primaries on that red thing and get an idea of the ratios. Unlikely but could be a case of moving a few jumpers. I'm sure they would have just done that if that was the case. Maybe Marantz can provide spares? I bet the same one was used in the 6000 which isn't that ancient.
 
SimontY said:


Also might have some sort of extra filtering action on noise, which would be one positive aspect.

I'm just suprised compatability with the two main voltages wasn't built in to the original transformer.

I reckon Brent's advice is good though, a SE one. You can't buy the toroid it seems, people have tried.

Simon

You can also use a cd6000 TX which appears to have the same outputs as the 63 and 67 variations.

Also adding an extra tapping into all transformers may have been alot more expensive than just a few dedicated ones for a small market

Brent
 
Glenn2 said:


The service manual shows various types of transformer. Some have 120V & 240V tappings but most don't it seems.

My old '63 had 230v and 240v options - which seems a little pointless to me.

Should be able to measure the primaries on that red thing and get an idea of the ratios. Unlikely but could be a case of moving a few jumpers. I'm sure they would have just done that if that was the case. Maybe Marantz can provide spares? I bet the same one was used in the 6000 which isn't that ancient.

Ahh you mentioned the 6000 LOL

Are you sure about the 240v - 230v winding. They should be 230v and 115V.

They may have specced the unit as 230-240V due to the change in wording for EU and UK harmonisation. All around the time of the cd63


An externally hosted image should be here but it was not working when we last tested it.


Brent
 
Yeah... I measured them as well.

I changed mine from 240 to 230.

I think it had an 05 suffix on the model no.
 

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Hi Rowe,
I thought the UK were on 240Vac +6% and -10% to allow that APPARENT harmonisation.
The numbers at the limits are almost the same.

However, a call to my supplier came back with 216Vac to 253Vac as our limits in the UK.
These are the same as 230Vac +10% and 240Vac –10%. Somewhat odd!

I am glad the commercial pressures prevented our authorities wilting under the EU pressure and resisting changing to 220Vac.

All the transmission cables would need upgrading and that 750W radiant electric fire would end up being just 630W (chilly in here?).
 
rowemeister said:
I would get hold of a 63 63SE 67 or 67SE TX to replace or a 63KI tx if you can find one. The SE tx are better than standard ones.

I don't like the idea of two tx has this may have an impact on dynamics.

Also there is 240v and 100V going across the cd player.
Brent

LOL, This IS a CD67SE ... I guess you mean a 240v 67SE etc. TX rather than a 110v one. What a PITA this is.

We're 220V here. http://www.kropla.com/electric2.htm.

Sooo
(i) IF I can get hold of a TX from a 220/240v player, how difficult is it to swap over? There seems to be a plethora of pins under that foot??? (of the red TX).
(ii) Has anyone adfinni 😀 blown up theirs and can sell me one?

k.
 
AndrewT said:
Hi Rowe,
I thought the UK were on 240Vac +6% and -10% to allow that APPARENT harmonisation.
The numbers at the limits are almost the same.

However, a call to my supplier came back with 216Vac to 253Vac as our limits in the UK.
These are the same as 230Vac +10% and 240Vac –10%. Somewhat odd!

As far as I understand, the EU in theory specifies 230VAC ±10% (individual states can implement tighter tolerances, like the UK's +10%, -6%) but in practice this means that just about everyone in Europe gets the same as they did pre-EU. Politicians know better than to implement laws which would mean changing the way things work! :smash: I still get about 250VAC at the socket, just the same as I always have done...

For future reference, jksmurf's list seems to be cribbed from this wikipedia page, which is more likely to be updated in future.

I recently built a couple of LM3875 Gainclones for use in Canada. I was working on a house build with a Canadian electrician in his 70s. He consistently referred to "one ten volt hydro, eh" 😉 which contradicted my (theoretical) knowledge of North American mains power. Sure enough, the voltage tested at a consistent 110V (±1% or so). Take that list with a good pinch of salt...
 
At work we repair and calibrate electrical test equipment and the mains is constantly monitored and the average voltage we measure is 248V with an increase to 250 at lunch. The increase is due to everyone downing tools (we are on an industrial estate with its own sub station).The 50hz has never changed in 5 years to my knowledge.

Sag and increase is down to demand and if you are constantly getting 250v then the demand on your substation is minimal - which is also good for your HIFI

Brent