Replacing The Sw-963 Board - Sony RM-B150 Maintenance Manual

2-6. Replacing the Printed Wiring Board

2-6-2. Replacing the SW-963 board

1. Pull out the knob.
2. Disconnect the flexible card wire from CN2 on the VA-186 board referring to Section 2-5-1.
3. Remove the CN-1651 board referring to Section 2-6-1.
4. Remove the two screws securing the VA-186 board and remove the board in the direction of the
arrow.
Knob
5. Remove the two screws to remove the board bracket from the SW-963 board.
6. Desolder CN1 on the SW-963 board and remove the SW-963 board from the VA-186 board.
CN1
7. Attach the board bracket that were removed in step 5 to a new SW-963 board with the two screws.
8. Solder CN1 on SW-963 board.
The following precautions should be taken before soldering:
. Make sure that the SW-963 board is normal to theVA-168 board.
. Make sure that the screw holes A and B for the VA-186 board and board bracket are aligned.
9. Install the VA-186 and CN-1651 boards in the reverse order of steps 1 to 4.
2-8(E)
Frexible card wire
CN2
B2.6 x 5
B
A
SW-963 board
B2.6 x 5
VA-186 board
Board bracket
VA-186 board
RM-B150