Toshiba SD-2550A Service Manual page 56

2-2-2. Power PC board
1. Peel off two tapes (1) and remove the connector (2).
2. Remove six screws (3) and remove the power supply
PC board (4).
Screws (3)
Screws (3)
Twist more than 9 times.
Fig. 2-1-20
2-2-3. Front PC Board
1. Remove the front panel. (Refer to item 2-1-3.)
2. Remove nine screws (1) and remove the front display
PC board (2).
Fig. 2-1-21
Power supply
PC board (4)
Tape (1)
Connector (2)
Front display
PC board (2)
Screws (1)
2-3. Mechanism Parts
2-3-1. Mechanism Chassis Assembly
Note:
• When removing the mechanism chassis assembly (3),
be sure to short-circuit the laser diode output land
before removing the connector and the flexible cables.
After replacing, open the land as it was after inserting
the connector and flexible cables.
1. Remove the tray. (Refer to items 2-1-3 and 2-1-4.)
2. Remove three flexible cables (1).
3. Remove four screws (2) and remove the mechanism
chassis assembly (3).
Screws (2)
Mechanism
chassis assembly (3)
2-8
Pickup head
Laser diode
output lands
Flexible cables (1)
Fig. 2-1-22