Marantz CD63 & CD67 mods list

[Fidelity Audio]

Originally posted by disco


Nice HF shield (shields up!).

How's temperature inside?

Jaap

Temp inside is pretty good. With everything running on its own psu and reg nothing is drawing much current and they all keep to a minimum temp.

Brent

[SimontY]

Originally posted by rowemeister


Temp inside is pretty good. With everything running on its own psu and reg nothing is drawing much current and they all keep to a minimum temp.

Brent

Hey Rowe,

I think he meant the FETs inside the HDAM can shield. How warm are they running?

Simon

[Fidelity Audio]

Originally posted by SimontY


Hey Rowe,

I think he meant the FETs inside the HDAM can shield. How warm are they running?

Simon

errr they are luke warm but no warmer than the standard HDAM cans get. So all is good

Brent

[Fidelity Audio]

Does anyone have the tx and psu diagram for the CD67.

I purchased a cheap 67 (dead) and the tx primary is O/C. I was wondering if the thermal fuse could be bypassed. One pin is 195 ohm between L and N.

cheers

Brent

[awpagan]

Originally posted by rowemeister
Does anyone have the tx and psu diagram for the CD67.

I purchased a cheap 67 (dead) and the tx primary is O/C. I was wondering if the thermal fuse could be bypassed. One pin is 195 ohm between L and N.

cheers

Brent

will send what i have
same email
allan

[Fidelity Audio]

Originally posted by awpagan



will send what i have
same email
allan

Yeah same email.

Cheers mate

Brent

[Fidelity Audio]

Sorted the O/C TX.

When I removed it I could see a small burn mark behind the plastic cover, seeing this told me the thermal fuse had not gone (it had to be the copper wire for the winding).

I stripped away the plastic and found the copper wire had popped. So I tinned both ends and soldered together.

The cdp is now running

[Samuel Jayaraj]

Sorry guys, but I have searched this thread for about a week now for Ray's discrete output stage schematics and simply can't find them. Could someone please point them to me as well as Jaap's PCB layout, if available.

Thanks a ton.

[Fidelity Audio]

Originally posted by Samuel Jayaraj
Sorry guys, but I have searched this thread for about a week now for Ray's discrete output stage schematics and simply can't find them. Could someone please point them to me as well as Jaap's PCB layout, if available.

Thanks a ton.

Rays discrete output circuit

Brent

[Fidelity Audio]

Jaaps discrete pcb layout