B Board - Sony FWD-50PX1 Service Manual

1-3-2. B Board

1. Remove the rear cover assembly.
(Refer to Section 1-2-1.)
2. Remove the Q/B shield cover.
(Refer to step 2 of Section 1-3-1.)
3. Remove the two UL tapes, then disconnect the eight
harnesses and the flexible flat cable connected to the B
board.
4. Remove the six screws, then remove the B board.
5. Remove the lithium battery from the battery holder on
the B board.
Lithium battery
(CR1220)
Battery
holder
CN7002
CN1004
CN1005
CN1001
CN101
CN401
CN402
Flexible flat
cable
Harnesses
Conductive
cushion
FWD-50PX1
CN7001
B board
Harnesses
PSW
3 x 6
B board
UL tapes
6. Install the B board in the reverse order of steps 1 to 5.
n
Place and fix the harnesses to connect the Q board and
B board as shown in the illustration.
UL tapes
Harnesses
Q board
B board
1-5