TC-118SD Repair - Voltage Selector

Hi, recently I got my hands on a TC-118SD that isn't working. At first sight, it only needs a plug, but the voltage selector tab has broken off (or it just never had one) and I can't tell which voltage range (110-120 or 220-240) it's set at, and also can't tell which way it went in, so I can't check the case labeling.
Is there any way to determine what it's set at without plugging it in? I have 240v in my mains, so I'll burn it if it's wrong.

Edit: The selector has three cables, orange, red and yellow in the middle. The red and orange go to a transformer, and the yellow goes to a capacitor.

Hi Arken,

I can't answer your question from the information that you have iven, but this site may help: https://www.radiomuseum.org/r/sony_stereo_cassette_corder_tc_118sd.html

There is a schematic for the Sony TC-118SD cassette recorder/player, and I think you can ask your question there.

spec

I got it working, but now I have a different problem:

Although there is audio coming out of the headphones jack, there is none out of the line out panel in the back. Everything else seems to work fine, and I don't see any bad connections.
I can't seem to find any information about it anywhere else, either.

I have the schematics, too, but it really doesn't tell me much.