Board; Board/If-989 Board - Sony UP-55MD Service Manual

1-4-5. IF-990 Board/IF-989 Board
1. Remove the top cover. (Refer to Section 1-3-1.)
2. Remove the front panel assembly.
(Refer to Section 1-3-2.)
3. Remove the rear panel assembly.
(Refer to Section 1-3-3.)
4. Remove the two screws (BVTT2.6 x 5), then remove
the remote bracket.
5. Disconnect the flexible flat cable from the connector
(CN201) on the IF-990 board.
6. Remove the two screws (BVTT2.6 x 5) and two
connector screws, then remove the IF-990 board.
7. Disconnect the flexible flat cable from the connector
(CN108) on the IF-989 board.
8. Remove the ten screws (BVTP3 x 8), then remove the
IF-989 board.
Flexible flat cable
BVTT
2.6 x 5
CN201
IF-990

board

Remote bracket
Flexible flat
cable
CN108
IF-989 board
9. Install the IF-990 and IF-989 boards in the reverse
order of steps 1 to 8.
1-6
Connector screws
BVTP
3 x 8
BVTT
2.6 x 5
BVTP
3 x 8
1-4-6. IF-988 Board
1. Remove the top cover. (Refer to Section 1-3-1.)
2. Remove the front panel assembly.
(Refer to Section 1-3-2.)
3. Remove the MA-142 board. (Refer to Section 1-4-1.)
4. Remove the chassis stay.
(Refer to step 4 in Section 1-5-2.)
5. Remove the three screws, then remove the MS bracket
in the direction of the arrow.
6. Disconnect the flexible flat cable from the connector
(CN301) on the IF-988 board.
7. Remove the four screws, then remove the IF-988
board.
IF-988 board
BVTT
CN301
2.6 x 5
8. Install the IF-988 board in the reverse order of steps 1
to 7.
Flexible flat
cable
MS bracket
BVTT
2.6 x 5
UP-55MD