04-22-2011, 02:34 PM
When I first started to look at my own 47-1230, I saw this thread.
now that I am a lot more familiar with the radio and its chassis, I can be of some help with the wires.
the pair that we see on the left of this picture is the lightbulb for the phono. It is supposed to pass to a limit switch at the door, and power the phono bulb only when the door is open. On mine, it was cut. You don't need that to get the radio working again.
The middle one is the power cord. I changed mine with a 3-prong grounded cord and added a fuse.
the 3rd connector is in fact a connector, you can pull on that one. I didn't think it was a connector either, it seems like it is sealed there. It is the power to the phono. You can leave it unplugged for the early stages of restoration.
the group of 4 are the speaker wires. They are supposed to go to a bakelite connector and control the speaker's 2 coils.
the other one is the phono input. It is supposed to be some kind of RCA connector that goes connects to the audio transformer at the bottom of the cabinet, this being the transformer for the phono arm.
You don't need that to get the radio working either and can wait later to fix it.
Question: do you have some kind of metal plate on the underside?
now that I am a lot more familiar with the radio and its chassis, I can be of some help with the wires.
robertwsimpson Wrote:here are some of the cords coming out of the back:
[Image: http://farm6.static.flickr.com/5220/5456...47d6_z.jpg]
Power + ??? by robertwsimpson, on Flickr
I know the middle is the power (also, I was wondering, does the polarity matter on this? I need to hook up a new plug, and I was wondering if it mattered which way I solder the wires... I'm thinking not.). I have no recollection of what the outside ones are. I'm guessing one is the speaker, but I haven't had time to look at the schematic very well.
the pair that we see on the left of this picture is the lightbulb for the phono. It is supposed to pass to a limit switch at the door, and power the phono bulb only when the door is open. On mine, it was cut. You don't need that to get the radio working again.
The middle one is the power cord. I changed mine with a 3-prong grounded cord and added a fuse.
the 3rd connector is in fact a connector, you can pull on that one. I didn't think it was a connector either, it seems like it is sealed there. It is the power to the phono. You can leave it unplugged for the early stages of restoration.
robertwsimpson Wrote:here are the cords coming out of the side:
[Image: http://farm6.static.flickr.com/5213/5455...5ef6_z.jpg]
Antenna + phono cords? by robertwsimpson, on Flickr
I think the group of 4 are the phonograph controls, but I haven't had time to look up underneath the phonograph unit to see what they look like. I think the large one is the antenna (it is co-axial).
the group of 4 are the speaker wires. They are supposed to go to a bakelite connector and control the speaker's 2 coils.
the other one is the phono input. It is supposed to be some kind of RCA connector that goes connects to the audio transformer at the bottom of the cabinet, this being the transformer for the phono arm.
You don't need that to get the radio working either and can wait later to fix it.
Question: do you have some kind of metal plate on the underside?
-Mars
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