Ernst3510 wrote:Yep, i tried several parts... At the first sight they are compatibel. Not!
I tried even a 50 Hz pulley of the Zero 100, nope, even the 50Hz strobe is not working on the Z2000 platter.
I put some aluminiumtape on the puley to compensate the difference inspeed between 60Hz and 50Hz, is working but on silent passages on the record you can hear the pulley. Almost impossible to find a 50Hz pulley for the Z2000.
But the mechanical part is fine now, i managed to repair the automatic and it's full working now. The "boxed"part i told, i have bent it open to loosen the part you ment is full working now, even this part had a "tick" from the awful transport from the states to belgium.
Other problem now: sound is working when i start the tt, when the arm is on half the record, 1 channel is dropping out, at the end of the record there is no sound at all. I suspect the wiring in the arm...
I do not understand any of your explanation about about the pulley so I will try to address only the wiring problem. Check the cartridge carrier first. Make sure that the 4 contact points on the carrier are making good contact with the tonearm points. With a screw driver, slightly bend the 4 contact arms on the tonearm down so they can make better contact. Then make sure that the contact points on the cartridge carrier are clean and the plastic portion of the carrier that holds them in place is not bent slightly. I will add a pic of what I mean. If that does not help with the sound dropping off then make sure that your RCA wires are making good contact with the connections on the machine. Corrosion here will have the effect you are describing. If that does not help then the problem probably lies with the wires as they exit on the underside of the machine. One or more wires have been stretched or pinched and are intermittently open. Using a continuity tester, and holding one end on the correspondingly correct tonearm contact, move the tonearm and wires until you can find the intermittent wire or wires. If found, perhaps the wire or wires can be shortened enough to eliminate the problem portion. Tedious, yes but it must be done. I have replaced the tonearm wires in one of my zeros and while hard, it was possible but I was lucky enough to find a seller in another state here in the US that had the correct size wires. And that is the problem, finding the correct size as the original wires a micro small with only 3 or 4 conductors smaller than a human hair. Make sure then to inspect the solder connections you have just repaired. Hope this helps. chan
Now to the pic. Mounted on the carrier is an Empire 999VE cartridge with a metal mounting frame. Look at the end that holds the contact points. This is a carrier that I have heated and repaired. When the cartridge frame is mounted to the carrier with the small bolts, it tends to warp the plastic carrier and pull down and away the contact point end thereby leaving a greater distance between the contact on the carrier and contact points on the tonearm. To fix this, I mount the cartridge on the carrier and then slightly heat the plastic on the end with the contacts and hold until cool thereby keeping the carrier flat. It then makes perfect contact with the tonearm contacts. This may or may not be part of your sound problems. At first glance it may not seem possible that a warped carrier could give intermittent channel sound but as the tonearm moves across the lp, it changes the contact stress points and the contacts then loose contact with each other.