Futaba radio help

[spider]

Hey guys,I have an old Futaba Magnum Jr FP-t2pka radio transmitter. I last used it about a year or so ago and stored it in a climate controlled area.
This year I went to use it and placed good working batteries in it and found it doesnt work. I checked the batteries with a Digital Multimeter and all batteries are good. I flicked the power switch again and the voltage meter needle doesn't move. I tried the batteries in another transmitter and it worked. I went back to the non working transmitter and took the case apart. Plug the batteries into the slot and checked to see if I had power where the red and black wires are connected to the contacts. I do have power there. But this is where I need someone with electronics knowledge to lend a hand to guide me on how to check other things with the DMM to find out what went wrong with it.

Anyone that can help with this? I dont want to discard the piece as its for a vintage r/c car that I want to keep running a nicd pack through. I would like to use it as a project on how to fix something electronic. I looked for the schematic but cant seem to find it online. I suppose due to the age of it.

I found the manual here. https://www.manualslib.com/manual/378247/Futaba-2pka.html

[GoMachV]

I can’t say on that one, but I think I have a brand new one stashed away that I removed the back from and gave to another member. Everything else was brand new and unused. Your welcome to it for the cost of shipping if you want it. I will just need to round it up, hoping I didn’t toss it

[RC10th]

Dicky switch maybe?

[tamiyadan]

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[spider]

GoMachV - Please let me know if you find it. I would be interested. Thanks
RC10th - is that the main switch?
tamiyadan - the battery holder is okay. I usually spot that first and if corroded I normally clean em up. So we can eliminate that one. As for the switch, I wasnt aware of that. Ill have to check that out more. I assume I should be getting 12 VDC on the battery holder correct?
I think I have some radio shack tuner control cleaner. Would that be useful and do the job? Or would doing a baking soda or vinegar soak work? The only place I can think it may have some corrosion is in the cavity of the positive terminal. Ill have to recheck the batteries as well. I know one or two tested 1.2 volts so maybe its not reaching a working voltage level too? I never dropped it and havent really used it much. *scratches head*
Thanks for all the fast response guys. Much appreciated.

[spider]

Well thanks guys for all the help. I ended up re-testing each battery and found two of them completely dead. Why they tested good the last time is beyond me. Each battery was around 1.3v to 1.5. Today I retested for giggles and found two with .200 to .394. Popped a couple new ones in and tested the transmitter and the meter peaked. Yay!!! Thanks again fellas. Much appreciated.

[Phin]

I have one of these (it was my first radio) but I've been under the impression that they weren't legal to use in the US anymore because they're wide band?

[jwscab]

Not sure the radio police are paying much attention to these bands anymore, but maybe......