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#1
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Help: Turntable problem
I have lost the left channel from my turn table. What would be the most
likely cause? Needle? The turntable was working fine until I cleaned some LPs. When I tried to use the turntable after cleaning some LPs on it, I no longer had a left channel. The turntable is a Sony PS-LX500 Thanks in advance for any help. Bill |
#2
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Turntable problem
Bill:
Faulty phono input on the receiver or amp? Try swapping the L and R phono input wires to verify? Intermittent source selector switch on your amp or receiver? Loose connection from the turntable to the receiver? Faulty cable from turntable? Wiggle it around. Loose wire connecting the cartridge to the headshell? Faulty contacts in headshell/tonearm? Remove and re-install headshell. Bent stylus? Damaged stylus? Faulty cartridge? ..... very unlikely. All of this has absolutely NOTHING to do with you "cleaning some LPs." -- Best Regards, Daniel Sofie Electronics Supply & Repair ------------------------------------------------ "Bill" wrote in message I have lost the left channel from my turn table. What would be the most likely cause? Needle? The turntable was working fine until I cleaned some LPs. When I tried to use the turntable after cleaning some LPs on it, I no longer had a left channel. The turntable is a Sony PS-LX500 Thanks in advance for any help. Bill |
#3
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Help: Turntable problem
In , on 08/11/03
at 08:47 AM, Bill said: I have lost the left channel from my turn table. What would be the most likely cause? Needle? The turntable was working fine until I cleaned some LPs. When I tried to use the turntable after cleaning some LPs on it, I no longer had a left channel. The turntable is a Sony PS-LX500 I doubt that you cleaned the left channel off your records. The usual cause for "one channel out" on a turntable is wiring. A quick check would be to reverse Left and Right where the turntable plugs into the receiver. If the problem moves to the Right channel, you do have a turntable (or its associated wiring) problem. Many times there is a slight misfit between the RCA plugs at the end of the turntable wiring and the jacks on the receiver. If so, then the problem will probably go away after you do the above. *SLIGHTLY* distorting the RCA plugs will usually cure or prevent such a problem. (This is a gentle distortion. When I do this only an expert could see any difference.) If the actual wire attached to the RCA plugs fails, it will usually do so within 1/4" from the plug. Less common is a similar failure about 1/4" from where the wire enters the turntable. Another common point of failure is near the cartridge. I'm not familiar with your turntable. If there are tiny little wires, they can break or become disconnected. If there is a connector, it can become dirty. Connectors can be gently cleaned with a pencil or ink eraser followed by a gentle solvent wash (such as alcohol). Finally, while relatively rare, cartridges can and do fail. If you have access to an Ohm meter, the coils in a moving magnet cartridge (the usual "magnetic" cartridge type) measure about 1000 Ohms. This is not an exact figure, 600 or 1200 are not unusual. The important point is that Left and Right should be similar. I find that, in good cartridges, the channel match is well within 10%, but 20% would not be out of line. Stylus damage causing the loss of one channel is unlikely. ----------------------------------------------------------- SPAM: wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15 13 (Barry Mann) [sorry about the puzzle, SPAMers are ruining my mailbox] ----------------------------------------------------------- |
#4
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Help: Turntable problem
Bill wrote:
I have lost the left channel from my turn table. What would be the most likely cause? Needle? The turntable was working fine until I cleaned some LPs. When I tried to use the turntable after cleaning some LPs on it, I no longer had a left channel. The turntable is a Sony PS-LX500 Thanks in advance for any help. Bill FWIW - Usually when I've had that problem it's been the connection between the shell that holds the cartridge and the tonearm assembly. I don't know whether the connector there corrodes or what, but removing the shell containing the cartridge and reinstalling it has always fixed the problem. |
#5
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Help: Turntable problem
CJT wrote:
Bill wrote: I have lost the left channel from my turn table. What would be the most likely cause? Needle? The turntable was working fine until I cleaned some LPs. When I tried to use the turntable after cleaning some LPs on it, I no longer had a left channel. The turntable is a Sony PS-LX500 Thanks in advance for any help. Bill FWIW - Usually when I've had that problem it's been the connection between the shell that holds the cartridge and the tonearm assembly. I don't know whether the connector there corrodes or what, but removing the shell containing the cartridge and reinstalling it has always fixed the problem. Thanks to everyone for their help. When I removed the cartridge and also the stylus and put them back, the problem went away. I wasn't clear about why I was concerned that cleaning the LPs may have had some effect. The cleaning kit I use cleans the LP with it turning. So, it does load the turntable down some and also I didn't wait for the cleaning solution to dry and I was concerned that the solution getting on the stylus could have mess it up. Thanks again to everyone for their help. Bill |
#6
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Help: Turntable problem
In , on 08/13/03
at 11:14 AM, Bill said: Thanks to everyone for their help. When I removed the cartridge and also the stylus and put them back, the problem went away. A common outcome. I wasn't clear about why I was concerned that cleaning the LPs may have had some effect. The cleaning kit I use cleans the LP with it turning. So, it does load the turntable down some and also I didn't wait for the cleaning solution to dry and I was concerned that the solution getting on the stylus could have mess it up. While there are a few who swear that "wet playing" their records is the only way to go, I don't think it is a great idea. I've seen some Scanning Electron Microscope images of records after they have been wet played -- they show significant damage. I don't think playing damp records would hurt the cartridge. Playing through puddles of cleaning fluid may cause some trouble if the solute load was high (dissolved dirt and/or detergent) because deposits may have formed on the stylus bar or inside the stylus assembly at the base of the bar. It's hard to know what the solvent base of your LP cleaner is, but if the stylus assembly hasn't disintegrated by now, don't worry about chemical incompatibility. At one point there was a cheap record cleaning fluid on the market that would leave a characteristic deposit on the stylus. Eventually, such a large clump of the stuff would collect on the diamond, the sound would degrade significantly. I could easily recognize that clump when inspecting a stylus. ----------------------------------------------------------- SPAM: wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15 13 (Barry Mann) [sorry about the puzzle, SPAMers are ruining my mailbox] ----------------------------------------------------------- |
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