1-2-3. Mother PC Board 1. Remove the rear panel. (Refer to item 1-1-4.) 2. Remove the Tuner Unit PC board. (Refer to item 1-2-1.) 3. Remove the Digital PC board. (Refer to item 1-2-2.) 4. Disconnect three connectors (1). 5. Remove five screws (2) and the screw (3). 6. Pull out the Mother PC board (4) toward the rear side (indicated by the arrow).