VAM1202 lens in, works fine. So I guess my previous problem -dry solder joint leading to clock failure- murdered the laser. Or made it wearing faster. I've removed the lens assy. and used that only coz as you may know the clamp does not match the CDM12.1.
It's right now playing, the second flea stealing the DAC's one supply, maybe not the best...
Soundwise I have no way to tell because I've messed with speaker stands and amp...
Thanks all and here I'm leaving this thread until I fry something else 😉
Matthieu
It's right now playing, the second flea stealing the DAC's one supply, maybe not the best...
Soundwise I have no way to tell because I've messed with speaker stands and amp...
Thanks all and here I'm leaving this thread until I fry something else 😉
Matthieu
Yesterday I remove muting transistor from my cd 67 and install small pcb with relay like Ray describe, now everything is ok but when I turn on power switch there is popup on the speaker.
When I turned off no more strange noise, can somebody confirm this is normal or not.
When I turned off no more strange noise, can somebody confirm this is normal or not.
No, this is not normal. There should be no noise at all.
Make sure you've connected the relay in such way that it is only energized during PLAY and that the normally-closed contacts are wired between the outputs and GND.
Make sure you've connected the relay in such way that it is only energized during PLAY and that the normally-closed contacts are wired between the outputs and GND.
Ray thank you for your quick response you have help me very much. Turned out to be a problem with the resistor RN30, RN31 you propose 2.2K but this value had to change in the 1K and after then they come works properly. It seems to me that I read here somewhere and you're someone suggested.
Ok, good that it's solved. It's possible a lower value is needed, this depends on the amount of current the relay-circuit needs.
Ray
Ray
another crash
Hi, I've made off piste regulators and put them in at r508, r510, r122 and r123 (the decoder and the servo). Everything lights up, but when I put a disc in it doesn't spin and 'disc' still shows on the display. After turning the player off, the disc spins briefly after about a second. Does anyone know where I should look for the problem? Henry
Hi, I've made off piste regulators and put them in at r508, r510, r122 and r123 (the decoder and the servo). Everything lights up, but when I put a disc in it doesn't spin and 'disc' still shows on the display. After turning the player off, the disc spins briefly after about a second. Does anyone know where I should look for the problem? Henry
Attachments
That may sounds stupid but... ribbon? Even looking at it is enough to move it!
BTW, are UK's cdp as the road, I mean on the wrong side? =)
BTW, are UK's cdp as the road, I mean on the wrong side? =)
I am worried about the ribbon that feeds the display. I am not sure how to check it. What do you mean by cdp?
If I push play, the cd tray moves a bit as if trying to play. I have looked over the ribbons and the contacts look OK.
Henry I've never seen the dispaly's ribbon causing any issue as you experience. May you unplug and plug it back the ribbon going to the mechanism?
Sometimes it can be as crazy as whitsle more and more (like magnet geting loose or unbalanced disc) when spinning, causing blank in music, until it does not read anymore, then less and less with power on/off until it plays fine again. Yes it did that tonight... Clock PSU hack and close wiring maybe no good for me... or my old spare VAM is too old... damn it's not finished.
BTW, keep us updated on your troubles Henry.
Sometimes it can be as crazy as whitsle more and more (like magnet geting loose or unbalanced disc) when spinning, causing blank in music, until it does not read anymore, then less and less with power on/off until it plays fine again. Yes it did that tonight... Clock PSU hack and close wiring maybe no good for me... or my old spare VAM is too old... damn it's not finished.
BTW, keep us updated on your troubles Henry.
Hi,
I am wondering whether the the new regs could be the problem or is it something I loosened while at work. I don't really know how the servo works, but I'm thinking of putting the resistors back in to test if that restores function.
The regs I made have 560r resistors on the output to increase the current to >5mA. (The adjustment pin to out resistor is 360R giving only around 3.4mA). This works well with two amber LEDs: I made eight of them and they all ran perfectly at 5V +/- 1% (using 2 X 9v batteries).
Am I right in thinking that the Servo regs could be the problem?
Henry
I am wondering whether the the new regs could be the problem or is it something I loosened while at work. I don't really know how the servo works, but I'm thinking of putting the resistors back in to test if that restores function.
The regs I made have 560r resistors on the output to increase the current to >5mA. (The adjustment pin to out resistor is 360R giving only around 3.4mA). This works well with two amber LEDs: I made eight of them and they all ran perfectly at 5V +/- 1% (using 2 X 9v batteries).
Am I right in thinking that the Servo regs could be the problem?
Henry
Well, I put the servo resistors back in and it still doesn't recognize that there is a disk is tray. I have a spare transport. Do you think it would make sense to replace that? Henry
I have now replaced the resistors on both the servo and decoder with the same problem. In service mode the disc spins but there is both P02 (focus) and P10 (radial) error. I have looked over the board and cannot find loose wires. The display ribbon is a little damaged on one end. Could this be the cause? Henry
Hi - it is spinning again. When installing the regs I had replaced c510 and 511 with 470uf silmic caps recycled from the psu. I am not sure why they wouldn't work there but it was the last thing left to try so I put the 220uf ones back in. I really wasn't expecting that to be the problem. Time to get the regs back in!!! Henry