Hi, Do you have a remote for you TV? because some tv’s have no ajustment nobs or buttons on them. you can only ajust the picture with the remote control. Hope this helps.
Hi again,
There are a couple more things we can try to help you. Sharp have a customer service number to ring 1-800-237-4277 and there is a good site to visit http://www.partsolver.com and there number is 1-877-62-parts (these are USA numbers) also let me know your modle number of your tv so I can help track it down and get your tv working as new again.
regards Noelene from Sydney Aust.