Hello everyone,
I found a CD100 that had a busted laser, and I had a busted CD960 with working laser.
Since I prefer the look of the CD100, I want to replace the CDM-0 with the CDM-1.
But the connections are a bit off: the motor pcb on the CDM-0 has a brown and black wire soldered to the pcb, and a separate connector that receives a yellow and a green wire.
On the CDM-1 this was replaced with 1 connector which receives a black, a brown (both presumably the same as above), a red and a grey wire.
So which is which: yellow = red and green = grey, or yellow = grey and green = red?
Anybody ever do this switch?
TIA,
James
I found a CD100 that had a busted laser, and I had a busted CD960 with working laser.
Since I prefer the look of the CD100, I want to replace the CDM-0 with the CDM-1.
But the connections are a bit off: the motor pcb on the CDM-0 has a brown and black wire soldered to the pcb, and a separate connector that receives a yellow and a green wire.
On the CDM-1 this was replaced with 1 connector which receives a black, a brown (both presumably the same as above), a red and a grey wire.
So which is which: yellow = red and green = grey, or yellow = grey and green = red?
Anybody ever do this switch?
TIA,
James
I dont believe the CDM0 is broken?
Something else is malfunctioning.
.
I think that it is not simple job, even if it is posibile, to simply reconnect cdm1 in place of cdm0...
Something else is malfunctioning.
.
I think that it is not simple job, even if it is posibile, to simply reconnect cdm1 in place of cdm0...
Well, had a look at the Lampizator page: "if the laser is dead, the CD will not spin at all".
What I noticed: CD100 powers up and displays the 15 green LED's. Drawer opens without problems, and after putting in a CD closes normally. CD does not start spinning.
I remove the CD and lightly push the laser all the way back, put the CD back in and close the cover. Then open the cover again, take the CD out, and the laser-head will have travelled back to its starting position.
What I make of this: mechanism has power, is clean (no dust, grime), lens seems clean, but laser does not recognize CD...
Now, I had the CD960 lying around anyway, and I read somewhere that the 2 transports were "compatible", I just did not know in how far that compatibility went, so opened them up 🙂
As I stated somewhere else, I work in a recycling center, so all this is free for me 😛
What I noticed: CD100 powers up and displays the 15 green LED's. Drawer opens without problems, and after putting in a CD closes normally. CD does not start spinning.
I remove the CD and lightly push the laser all the way back, put the CD back in and close the cover. Then open the cover again, take the CD out, and the laser-head will have travelled back to its starting position.
What I make of this: mechanism has power, is clean (no dust, grime), lens seems clean, but laser does not recognize CD...
Now, I had the CD960 lying around anyway, and I read somewhere that the 2 transports were "compatible", I just did not know in how far that compatibility went, so opened them up 🙂
As I stated somewhere else, I work in a recycling center, so all this is free for me 😛
Does the laser emit red light? It should do so before spinning the CD, even without a CD inserted (caution!). Also check that the arm goes to the innermost position and the pickup moves up/down 3 times. You can observe it by removing the cover.
I agree . It is very unlikely that the CDM-1 is broken. They are so , so robust!!!!
Andy
On the CDM-0, it's almost always a simple matter of readjusting the platter motor's bottom thrust bearing upwards to compensate for wear. Just mark where it starts out(locking compound usually makes it pretty well self-markerd), then turn it clockwise a 1/4 turn at a time, trying play each time, until it starts playing. Should not take more than two full turns. I can't recall ever seeing anything else go wrong with a cdm-0, and I've worked on a hell of a lot of them. If it doesn't work, then the next thing is to go through re-capping & resoldering, starting with the servo board.
There are two variants of CDM-1: one marked with A,B,D,E,F (yellow round sticker) or no mark has the same separate connectors as the CDM-0. The other variant marked with C,G or H has a 4-pole connector. The original green is Vc (motor speed control voltage), yellow is GND, brown is -12V, black is +12V. The CDM-1 (C, G or H variant) four-pole connector pins from left to right: Vc, Gnd, -12V, +12V. I hope it helps, but as said before, it is very unlikely that the laser is at fault.
CDM-0 and CDM-1 are not directly swappable. It is not even possible to swap swing arms or just laser part between them. There is a range of differences between the two transports which makes it impossible.
My C.D.M.-1 service manual refers to the sticker: for A,B, E and F it says "Exploded view tekening" and "H.F. V.V. + laser voeding print+principe tekening": "Zie Service Manual CDM-0". For other stickers there is a single CDM-1 exploded view and two PCB variants. I am sure there are CDM-1 variants that are direct replacement of the CDM-0, and other variants can be easily adapted. But the best proof would a comment from someone who has actually done the swap.
Sorry for the late reply, but had some stress at work... and thank you all for the many replies!
My CDM-1 is variant "G" (yellow sticker on motormount).
No light from laser, when I put in a CD nothing happens, no whirring, no spinning, no sound of motor...
I wanted to do this because a) I had the parts anyway, and b) if the CDM-1 wouldn't work then that would eliminate some possible problems.
But this was when I thought this was a simple switch.
Now it seems I'll have to put in some more effort 😀
My CDM-1 is variant "G" (yellow sticker on motormount).
No light from laser, when I put in a CD nothing happens, no whirring, no spinning, no sound of motor...
I wanted to do this because a) I had the parts anyway, and b) if the CDM-1 wouldn't work then that would eliminate some possible problems.
But this was when I thought this was a simple switch.
Now it seems I'll have to put in some more effort 😀
If that was the case, wouldn't I hear or see at least "something" (like the laser). Now it seems that, although the machine powers up, the laser module does nothing...
I can confirm from my own experience that the swing arm assembly (or "RAFOC" as Philips called it) of variant G is incompatible with CDM-0. Namely, the axis and bearings positions are different, and there are also sealing O rings on CDM1.
Thanks for the clarification. I've never seen a CDM-0. OK, the sub-assemblies might be incompatible, but what about the motor control voltage Vc? The servo should adjust it to the desired constant linear velocity, I suppose.
Not sure if anyone's interested now however I have successfully swapped a CDM0 for a CDM1. Removed a CDM0 From a Marantz CD73 and went on to replace it with a CDM1 from a Marantz CD44. Had to transpose some wires but it worked perfectly! only catch was after doing all this I realised the CDM0 spindle height was higher to accommodate the swing arm on top whereas the CDM1 was low because it was front loading originally. Bugger.😀
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