Need diagram of creative A350, controlling volume is not working

It is possible can you send me diagram of creative sbs a350 my 1 speaker controlling volume is not working and pins of Tru subwoofer is been damaged I need convert manual. Pls send me a diagram so can fix it or tech me how to fix its it. Ist important to my daughter to use it online school I don't have money to buy it. Thank you for your help
Ramil Mendoza from philippines