@racing821 start off by checking the power cable to make sure that you have power going to the player. Use a multimeter to check for that. If you do have power going to it, check the fuse on the power board for continuity.
[image|1169435]
To disassemble your player follow these steps
[image|1169446]
[image|1169448]
[image|1169447]
If unsure post some images of your board etc. with your question. Use [guide|21499|this guide] for that