You're looking for a service manual for the Sharp LC-32LE150M TV. Here are some helpful resources:
Their database is well-organized. Search for the model; they often have service manuals separate from user manuals.
Operation Manual: For basic setup, safety precautions, and user-facing features, the standard Operation Manual (8 pages) is also available.
Based on technician forums and repair logs, here are the most frequent issues with this model. The service manual directly addresses all of these.