SONY BKNW-25
Instrukcja Serwisowa

1-7. Main Parts Replacement

1-7-3. Replacing the SY-266 Board
1. Remove the DIF-74 board. (Refer to Section 1-7-2. But no need for the DVBK-1 removal.) 2. Remove the hexagon screws fixed a REMOTE connector. 3. Disconnect the harnesses from the three connectors (CN1, CN2, and CN6) . 4. Remove the two screws from the chassis. 5. Pull the SY-266 board out to the direction of arrow.
Hexagon Screw

1-7-4. Replacing the SW-988 Board
1. Remove the DIF-74 board. (Refer to Section 1-7-2. But no need for the DVBK-1 removal.) 2. Remove the SY-266 board. (Refer to Section 1-7-3.) 3. Remove the screw, and disconnect the harness from the connector (CN2). 4. Unsolder the SW-988 board to remove it.

PWH2.6 x 5

CN2

CN6
Desoldering Portions PWH2.6 x 5

SW-988 Board

PWH2.6 x 5 SY-266 Board CN1 CN2

6. Attach the replacement SY-266 board in the reverse order of step 1 to 5.

5. Attach the replacement SW-988 board in the reverse order of step 1 to 4.

1-6 (E)

BKNW-25