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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.
