Tone board right channel no sound

Hi, can someone please help me, I recived a tone board from a friend and one channel is not working (right chanel) can someone tell me what is the OPAMP used, I will try to change it.


the schematic shows a number on that part that dose not exist on internet…so what is that operational?

Does not exist ? :wink: The dragon is getting stronger everyday, the west’s light is fading!

Data sheet - 6863

It’s late here 5am and I am too tired to search, when you find the 6862 data sheet please post here!

Kia ora ano

*Note - has been down for days?