Sandyman

Hi I have a sahara s2000 and it has developed bad ghosting. I could not find a Service manual on the internet to figure out how to fix it. I tried your suggestion disconnected the inputs and then press down, up, left, right when you have no inputs, one at a time in that sequence and nothing happened. Can you advise in any way or send me a link to a service manual the user manual is no use for maintenance issues. Thank you.