Onkyo TX8255 memory leak (Solved)

[Remy]

Hi,
I have an amplifier tuner onkyo TX that loses the memory of FM stations during a power cut.
After looking at the diagram, I think it is the C704 capacitor (super capa) which must be in default.
I attach below 3 extract from the schematics to view this capacitor.
Before the amp is disassembled, I would like your opinion on this problem.
Thanking you in advance
Remi

[TERRA Operative]

I have repaired Onkyo amps with leaky supercaps before, it is a rhing with them when they get older. Be sure to check for corrosion damage to the PCB!

[Remy]

Hi,
Thanks for the advice. I will take time to clean the circuit when replacing the capacitor.

After spending 1 hour on the amplifier, the modification is done and everything works correctly    
Below picture of location capacitor has replaced, and the picture of the defective capacitor.

thanks for the feedback.