10-29-2021, 05:01 PM
Hello forum,
My 17 year old son and I have started repairing turntables over the last few months and it has been an enjoyable experience...starting with teaching him what a record was!
We normally work on newer stuff (Technics, Dual, Marantz, etc.) but have come across a Philco 46-1203 to fix for an older lady.
We've already purchased a cartridge/stylus (love the guys at turntableneedles.com) and had the rubber roller redone. Here's the odd thing...the turntable seems to have a grounding issue.
When we first worked on it, we had it plugged in and were just putting a record on and when i touched the tonearm I got a little bite. I didn't notice it again until a day later.
I had a friend out who is an electrical engineer (I'm not good with electrical stuff) and he couldn't figure it out. We had every wire that went to the turntable removed and still had voltage when touching the top.
Well, this morning I played with it some more and made at least a discovery. When you plug the power plug into an outlet one way, there is voltage on the tonearm with the power switch off and if you flip the plug around, there is voltage on the top when you turn it on.
Needless to say, I'm a bit confused at this point and my friend had removed all the wires from the wiring block under the turntable. I think what I would like to do at this point is just cleanly solder the wires (including the capacitor) back on the wiring block. Here's my question.
I have the schematic but, as I said, I'm no electrician. Does anyone have one of these that they wouldn't mind passing along a high quality picture of that wiring block? And, of course, any other relevant info that you folks might have is welcome.
-Mike
My 17 year old son and I have started repairing turntables over the last few months and it has been an enjoyable experience...starting with teaching him what a record was!
We normally work on newer stuff (Technics, Dual, Marantz, etc.) but have come across a Philco 46-1203 to fix for an older lady.
We've already purchased a cartridge/stylus (love the guys at turntableneedles.com) and had the rubber roller redone. Here's the odd thing...the turntable seems to have a grounding issue.
When we first worked on it, we had it plugged in and were just putting a record on and when i touched the tonearm I got a little bite. I didn't notice it again until a day later.
I had a friend out who is an electrical engineer (I'm not good with electrical stuff) and he couldn't figure it out. We had every wire that went to the turntable removed and still had voltage when touching the top.
Well, this morning I played with it some more and made at least a discovery. When you plug the power plug into an outlet one way, there is voltage on the tonearm with the power switch off and if you flip the plug around, there is voltage on the top when you turn it on.
Needless to say, I'm a bit confused at this point and my friend had removed all the wires from the wiring block under the turntable. I think what I would like to do at this point is just cleanly solder the wires (including the capacitor) back on the wiring block. Here's my question.
I have the schematic but, as I said, I'm no electrician. Does anyone have one of these that they wouldn't mind passing along a high quality picture of that wiring block? And, of course, any other relevant info that you folks might have is welcome.
-Mike
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
