Thanks so much for this. I have a PD-441 that is flashing it's speed error LED. I love this turntable and this will help me get it back to working order. I paused the video when you were showing the service memo and then copied it as a text document. Mine is in mint condition including the clear plexiglass cover. Weighs a ton though, almost 45 lb (20.4 kg)!!! Scary how much these things are bringing on the used market these days. I love vinyl so I'm keeping mine.
what was the problem exactly ? erratic speed ? low speed ? it would help me a lot if you could clrify this as i have some problems with the same drive. and by the way where did you find the schematic for the power supply ? thanks poul
Here is a good example of why, if contemplating purchase of a vintage turntable, best to stick with simple designs. I prefer belt-drive myself. By the way, I used to have a Linn turntable-setup jig that clamped the turntable in place securely and provided sufficient height that you could easily reach under the unit and adjust the suspension and so on while the turntable was playing. It worked with most other turntables as well; unfortunately it got lost when I moved, or maybe it was stored at my folks' home and my mom threw it out, I never did figure out exactly what happened to it. I wish I still had it, I could really use it at work (audio repair shop). A new one is pretty expensive! PS, if an LP-12 ever stops spinning, it usually needs replacement of three electrolytic capacitors. Much easier than repairing a direct-drive motor's power-supply!
I was wondering the same thing myself. He didn't explain why he was using 100VAC. The service memo didn't specify that this was necessary so when I adjust mine, I'm just going to plug it into regular AC power.
Thanks so much for this. I have a PD-441 that is flashing it's speed error LED. I love this turntable and this will help me get it back to working order. I paused the video when you were showing the service memo and then copied it as a text document. Mine is in mint condition including the clear plexiglass cover. Weighs a ton though, almost 45 lb (20.4 kg)!!! Scary how much these things are bringing on the used market these days. I love vinyl so I'm keeping mine.
Good to know about the speed adjustment. I have a PD-441 that is probably in need of service, so the more information I have, the better. Thanks!
Hello, around 1:50 mark, a schematic is shown. Where can I download that schematic?
How did you remove the motor underside cover to get into VR1?
what was the problem exactly ? erratic speed ? low speed ? it would help me a lot if you could clrify this as i have some problems with the same drive. and by the way where did you find the schematic for the power supply ? thanks poul
Here is a good example of why, if contemplating purchase of a vintage turntable, best to stick with simple designs. I prefer belt-drive myself. By the way, I used to have a Linn turntable-setup jig that clamped the turntable in place securely and provided sufficient height that you could easily reach under the unit and adjust the suspension and so on while the turntable was playing. It worked with most other turntables as well; unfortunately it got lost when I moved, or maybe it was stored at my folks' home and my mom threw it out, I never did figure out exactly what happened to it. I wish I still had it, I could really use it at work (audio repair shop). A new one is pretty expensive! PS, if an LP-12 ever stops spinning, it usually needs replacement of three electrolytic capacitors. Much easier than repairing a direct-drive motor's power-supply!
If the unit wants to see 100 volts input what will happen to the tablet synchronization when it gets plugged into 117 to 120 volts from the utility?
I was wondering the same thing myself. He didn't explain why he was using 100VAC. The service memo didn't specify that this was necessary so when I adjust mine, I'm just going to plug it into regular AC power.
Tell me more about that RPM phone app please. IOS? App name?
If you just even google “turntable speed app”, one of them should pop up, as there’s a few of them.
What no mention of your personal problems LOL
His heart valves are still under warranty.