Is this glue or capacitor spill?

Hi mates,
Just purchased an old rotel RA-840BX4 which had a lot of dust and crap inside.
I've cleaned the pots and for a while I had sound from the two channels. After cleaning the board and components, one channel went silent and the preamp seems "funny".
One thing that's bugging me is to know if these caps are spilled or it's just some glue used in assembling. Can you please give a hand?


An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.



Thanks!