3.1.9 Removing the heat sink/power board (See Fig.20 to 27) � Prior to performing the following procedure, remove the front panel assembly. (1) From the bottom of the rear cover, peel off the tape attaching the wire extending from the power board and remove the earth plate which is attached with the double-sided tape. (2) Remove the four screws T attaching the holder in the power unit section. (3) Move the power unit section with the wire from the rear cover temporarily. If necessary, release the band and unsolder the wire on the power board. (4) Remove the four screws U and the screw Y attaching the holder. (5) Release the wire from the band at �e� and move the holder in the direction of the arrow to release from the joint f. (6) Remove the four screws A� and two screws B� attaching the heat sink. (7) Remove the two screws D� attaching the power board.