CT-F2121 Maintenance

[chewie]

I finally got one to go with my PL-112D and SX-450 and they are all 1976!
It supposedly had a wonky meter, but they both work fine from what I have observed.(Seller Ebay pic)


What I did:
I already adjusted the speed and cleaned the heads.
I spotted a part that I need to resolder.
The meter in the picture no longer does that, it works perfectly fine now.


Problem:
The Automatic Stop function does not work.

I know I need to deoxit some stuff, I just haven't done it yet

Now what other kind of maintenance do I need to do?
Do I need to lube/oil any parts (ie; the motor)?
Do I need to replace the belts?
Is there an actual Service Manual for it(I already have the Owner's Manual and Schematic)?
Anything else I should worry about and work on(outside of a recap)?
How do I fix the Auto Stop function?

Thanks for any help!

[Alec124c41]

Clean the heads, and demagnetize them.
The places I have had to oil in a tapedeck are the pinch roller and the capstan/flywheel bearing.
Check all the belts. Replace if there is any question of them losing their resiliency.
Auto-stop is usually a solenoid triggered by the counter, but I've never had that deck.

Cheers,
Alec

[chewie]

Auto stop is triggered by the counter...... hmmm........... I'll have to take a closer look to see what it does.

Thanks again, Alec.

[duficity]

Some auto stops are triggered by tension or lack thereof on the spool, so when you get to the end, it stops, regardless of what the counter says.