1-2-3. Mother PC Board 1. Remove the Front panel. (Refer to item 1-1-3.) 2. Remove the Rear panel. (Refer to item 1-1-5.) 3. Remove the Tuner Unit PC board. (Refer to item 1-2-1.) 4. Remove the Digital PC board. (Refer to item 1-2-2.) 5. Disconnect the flexible cable (1) and the connector (2). 6. Remove six screws (3), then remove the Mother PC board (4).