Power Block; Switching Regulator Replacement - Sony GY-8240UWD Maintenance Manual

1-8. Power Block

1-8. Power Block

1-8-1. Switching Regulator Replacement

1. Turn the power OFF and remove the power cord.
2. Remove the top panel. (Refer to Section 1-1.)
3. Disconnect the connector CN601 of the MB-887
board.
4. Release the harnesses from the wire holder.
5. Remove the eight screws (B3 x 5), then open the rear
panel in the arrow direction.
CN601
MB-887
board
1-18
6. Disconnect the four connectors (CN1, CN101, CN102
7. Remove the screw (PSW3 x 6) to disconnect the
8. Remove the two screws (PSW4 x 8).
9. Raise the switching regulator gently upward.
Wire holder
Rear panel
B3 x 6
10. Install a switching regulator in the reverse order of
B3 x 6
B3 x 6
and CN104).
ground wire from the switching regulator.
CN101
PSW3 x 6
Ground wire
CN1
PSW4 x 8
Switching
regulator
removal.
PSW4 x 8
CN102
CN104
GY-8240UWD
GY-8240FC