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Sony TC-366 Voltage Selector - Help Needed

Mr.Marchuk

Mr.Marchuk

New Member
Hello, I recently acquired a Sony TC-366 deck, and before turning it on, I wanted to check if the voltage selector/knob (located next to the power cord) was in the correct setting. Mine didn't have the protection bracket over it, and it was easy to pull out. As soon as I pulled the selector out, the paper sticker with the marking that was dried and unglued, fell off into inside the box. I had to hunt for pictures of it on Google to see how it should be set, and I think I did ok. It would turn on, and the motor worked. When I opened it up to clean and replace belts, I found the motor run capacitor leaking, and the motor gets really hot. So, I suspect that maybe the voltage selector wasn't quite correctly set?
Could someone please share with me the correct position of the label and the selector, how should it be for the US?
Thanks in advance.
 
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The motor run capacitors in old sony RTR are known for failing. When they do the motor runs hot or stops completely.
I think the manual for the Sony is available. Try other models too, the connection is likely the same.
When you opened it up didn’t you find the label?
 
Mr.Marchuk said:
I wanted to check if the voltage selector/knob (located next to the power cord) was in the correct setting.
Click to expand...
Does this help.... from the TC-366 Owners Instruction Manual.
For U.S. power, you should probably set it to 117VAC (closest to 120VAC).
It looks like 100V is straight up from what I can tell in the picture (just to the left it looks like 240V). So, 117V is two positions to the right. of vertical
1740262659078.png
1740262696252.png

You can set then measure the secondary CT to each end and verify you are getting +26VAC.
1740263061511.png
 
Last edited:
Bradbrews said:
The motor run capacitors in old sony RTR are known for failing. When they do the motor runs hot or stops completely.
I think the manual for the Sony is available. Try other models too, the connection is likely the same.
When you opened it up didn’t you find the label?
Click to expand...
I did found the label, but wasn't sure how to affix it back, like what's the correct position, which number should be on top. From the picture provided by @dankik it looks like 100v is on top.
 
dankik said:
Does this help.... from the TC-366 Owners Instruction Manual.
For U.S. power, you should probably set it to 117VAC (closest to 120VAC).
It looks like 100V is straight up from what I can tell in the picture (just to the left it looks like 240V). So, 117V is two positions to the right. of vertical
View attachment 3434976
View attachment 3434977

You can set then measure the secondary CT to each end and verify you are getting +26VAC.
View attachment 3434981
Click to expand...
Thanks a lot, this helps.
 
This happened to me a several years ago with my TC-560. I did get it fixed back in place but had to use the schematic to be sure
I got it back correctly. It's been too long ago but I do remember barely sticking the paper label back as to not damage it.
It may come off next time but since I don't plan on leaving the country, it most likely will never be removed again.
 
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