Mb-898 Board Replacement - Sony HDW-750 Maintenance Manual

6-24. MB-898 Board Replacement

6-24. MB-898 Board Replacement
1. Open the inside panel assembly.
(Refer to Section 1-5.)
2. Remove the connector box.
(Refer to Section 1-6.)
3. Remove the plug-in boards.
(Refer to Section 1-7.)
4. Remove the front panel.
(Refer to Section 6-1.)
5. Remove the DC-DC converter.
(Refer to Section 6-8.)
6. Remove the inside panel assembly.
(Refer to Section 6-12.)
7. Remove the HN-277 board.
(Refer to Section 6-20.)
8. Remove the SS-92 board.
(Refer to Section 6-21.)
9. Remove the LP-114 board.
(Refer to Section 6-22.)
10. Remove the handle assembly.
(Refer to Section 6-23.)
11. Disconnect the harness and flexible card wire
from the connectors (CN116, CN117,
CN201) on the MB-898 board.
n
Life of flexible card wire will be significantly
shortened if it is folded. Be very careful not
to fold the flexible card wire.
12. Remove the two screws and remove the PC
board holder (R).
13. Remove the two screws and remove the
bracket (DCP).
14. Disconnect the flexible card wire from the PC
board holder (F).
15. Remove the two screws and remove the PC
board holder (F).
16. Disconnect the harness and flexible card wire
from the connectors (CN101, CN114 to
CN116, CN120, CN121) on the MB-898
board.
n
Life of flexible card wire will be significantly
shortened if it is folded. Be very careful not
to fold the flexible card wire.
17. Disconnect the two harnesses from the four
claws of the harness cover. Then remove the
toothed small screw A and remove the
harness cover.
18. Remove the three toothed small screws
(2 x 4) and remove the MB-898 board.
19. Install the new MB-898 board by reversing
the steps of removal.
6-38
Flexible card wire
CN116
MB-898 board
P2 x 4
CN201
Flexible
card wire
PC board holder (F)
Flexible card wire
CN121
MB-898 board
Flexible card wire
CN120
Cover harness
PC board holder (R)
P2 x 4
CN117
Bracket (DCP)
P2 x 4
CN116
Toothed
small screw
CN114
2 x 4
CN115
Claws
CN101
A
Toothed
small screw
2 x 4
Harness
HDW-750/750CE V1