Toshiba SD-220EB Service Manual page 82

1-2. PC Board Replacement
1-2-1. Main PC Board
Note:
• Before removing the main PC board (5), be sure to
short-circuit the laser diode output land.
After replacing, open the land as it was after inserting
the flexible cables (1).
1. Remove the top cover. (Refer to item 1-1-1.)
2. Eject the tray. (Refer to item 1-1-4.)
3. Remove five flexible cables (1) and remove one
connector (2).
4. Remove three screws (3). (In case of SD-120, remove
two screws (3).)
5. Remove four screws (4), then remove the main PC
board (5).
Twist more than 9 times.
Flexible
cable (1)
Tray
Pickup head
Laser diode
output lands
Fig. 2-1-7
Flexible
Connector (2)
cables (1)
Flexible
cable (1)
Screws (4)
Main
PC board (5)
Flexible
cable (1)
Screws (3)
(SD-220)
1-2-2. Power PC board
1. Peel off two tapes (1) and remove the connector (2).
2. Remove four screws (3), then remove the power
supply PC board (4).
Screws (3)
Twist more than 9 times.
Fig. 2-1-8
Connector (2)
Power supply
PC board (4)
Tapes (1)
Connector (2)