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Help - Tone Arm Wiring Pioneer Turtable

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Help - Tone Arm Wiring Pioneer Turtable

Postby daveyh » 28 Jan 2007 05:29

I am new to this forum and just registered. Glad to know this exists! I am needing help with a Pioneer PL A-25 turntable and I wonder if anyone out there knows has the tonearm chassis wiring goes. I picked one of these up at a garage sale this summer and I could not get any sound so I took off the bottom of the unit and I noticed a mouse had chewed through the wires connecting the tone arm to the chassis. Can anyone tell me how to connect them back up or where they go or have a picture of a working unit to show the connections that they could post or email me? This is just sitting and I have not been able to fix it because I have no idea how they reconnect. Thank you.
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Postby bastlnut » 28 Jan 2007 09:51

hallo,

the tonearm wires do not need to connect to the plinth.
it is best to connect the rca cable somewhere so the tonearm wires don't get pulled on.

you can simply connect the 5 colored wires coming out of the arm to a new rca cable.
red is right channel +....center wire of the rca cable.
green is right common – ....outside of the rca cable.
white is left +....same as + above,
blue is left – .....same as – above.
black to a single wire for the earth/ground connection.

connect the rca interconnect cable somewhere on the plinth to insure slack of the tonearm wires.

then you should be in bussiness! 8)

regards,
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Postby daveyh » 29 Jan 2007 14:56

Ok. I'll try that. Thanks for your response.
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It Works!

Postby daveyh » 31 Jan 2007 20:36

Hey. Thanks for your help. I followed your directions and it works! I appreciate it very much. :D
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Postby bastlnut » 31 Jan 2007 22:03

hallo,

you are welcome, glad it worked out for you.

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Sounds great with a 33 RPM but distored with a 45 rmp record

Postby daveyh » 03 Feb 2007 23:14

Hello:

I hooked up the wires like you said and everything seemed ok because I put on a 33 1/3 record and it sounds great. Well, I went to play a 45 rpm and it doesn’t sound great. I sounds distorted. I unplugged one side of the RCA and it sounds clear but when I plug the other I hear distortion. Well I thought I replace the RCA with a new cord. But that did not fix it. I tried several different 45 records and I get the same thing. Sound works fine ith a 33 1/3 but not with a 45. Weird. I replaced the stylus also. Any ideas?? Thanks for any help.
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Help -

Postby Blue Angel » 03 Feb 2007 23:28

Hi daveyh

Have you changed the tt's rotating speed to 45rpm?

Please explain the distortion you hear.

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Postby bastlnut » 04 Feb 2007 10:15

hallo,

like Blue said,
please explain the distortion.

also;
have you aligned the cartridge?
or checked the alignment?
have you checked the VTF?
antiskating?
how about the Azimuth?
(does the needle point straight down when looking at it from the front?)
what is the cartridge you are using?

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Postby daveyh » 04 Feb 2007 14:37

Blue Angel and bastlnut thanks for your replies.

I have changed the TTS’s rotating speed to 45rpm. The distortion sounds like the stylus is not getting a good contact with the 45, although it is. It's not a clear full sound. The needle is pointing straight down and really can't be adjusted because it has a special Pioneer angled head shell that came with the unit. I have used several different cartridges and styluses. I have the same problem. One thing I did notice is when I push the cue button to remove the record one side of the speaker on one side becomes clear before i come all the way off the vinyl. Again, this only happens with 45 rpm records and not 33 records. The 33 records have full nice sound.

It's got me thinking.

Thanks again for any help.
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Postby bastlnut » 04 Feb 2007 16:22

hallo,

if your TT/arm/cartridge tracks LP's perfectly, and there is no distortion what-so-ever.
the VTF, VTA, and Azimuth are also correct.
this basically leaves one alternative.

the 45's are bad.
they may have been played in a TT that destroyed the one side of the groove.
they is no correction for this,
only buying them anew. :wink:

but you can enjoy your LP's. 8)

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Postby devmali » 25 Jan 2011 06:26

Hi Bastlnut,

i recently picked up a pioneer rondo 3000 X/Y turntable ....it has no ground cable...where does that come from and where does it go ....the cartritge has 4 pins only where does the 5th black wire fit in.

it is an s-type tonearm with no antiskating ....
I am planning to rewire the tonearm .....could you please provide some help...
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